d81f75ae41
Also fix android::base::Split to behave like Java, Python, and google3.
(cherry picked from commit 8d5fa6da44)
Change-Id: I9388ae37ee8dd4a4a6c2a9a19f068b70d9a78353
3054 lines
93 KiB
C++
3054 lines
93 KiB
C++
/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define TRACE_TAG TRACE_SYSDEPS
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#include "sysdeps.h"
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#include <winsock2.h> /* winsock.h *must* be included before windows.h. */
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#include <windows.h>
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#include <errno.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include "adb.h"
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extern void fatal(const char *fmt, ...);
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/* forward declarations */
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typedef const struct FHClassRec_* FHClass;
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typedef struct FHRec_* FH;
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typedef struct EventHookRec_* EventHook;
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typedef struct FHClassRec_ {
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void (*_fh_init)(FH);
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int (*_fh_close)(FH);
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int (*_fh_lseek)(FH, int, int);
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int (*_fh_read)(FH, void*, int);
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int (*_fh_write)(FH, const void*, int);
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void (*_fh_hook)(FH, int, EventHook);
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} FHClassRec;
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static void _fh_file_init(FH);
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static int _fh_file_close(FH);
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static int _fh_file_lseek(FH, int, int);
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static int _fh_file_read(FH, void*, int);
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static int _fh_file_write(FH, const void*, int);
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static void _fh_file_hook(FH, int, EventHook);
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static const FHClassRec _fh_file_class = {
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_fh_file_init,
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_fh_file_close,
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_fh_file_lseek,
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_fh_file_read,
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_fh_file_write,
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_fh_file_hook
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};
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static void _fh_socket_init(FH);
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static int _fh_socket_close(FH);
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static int _fh_socket_lseek(FH, int, int);
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static int _fh_socket_read(FH, void*, int);
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static int _fh_socket_write(FH, const void*, int);
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static void _fh_socket_hook(FH, int, EventHook);
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static const FHClassRec _fh_socket_class = {
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_fh_socket_init,
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_fh_socket_close,
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_fh_socket_lseek,
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_fh_socket_read,
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_fh_socket_write,
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_fh_socket_hook
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};
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#define assert(cond) do { if (!(cond)) fatal( "assertion failed '%s' on %s:%ld\n", #cond, __FILE__, __LINE__ ); } while (0)
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/**************************************************************************/
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/**************************************************************************/
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/***** *****/
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/***** replaces libs/cutils/load_file.c *****/
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/***** *****/
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/**************************************************************************/
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/**************************************************************************/
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void *load_file(const char *fn, unsigned *_sz)
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{
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HANDLE file;
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char *data;
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DWORD file_size;
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file = CreateFile( fn,
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GENERIC_READ,
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FILE_SHARE_READ,
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NULL,
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OPEN_EXISTING,
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0,
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NULL );
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if (file == INVALID_HANDLE_VALUE)
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return NULL;
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file_size = GetFileSize( file, NULL );
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data = NULL;
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if (file_size > 0) {
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data = (char*) malloc( file_size + 1 );
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if (data == NULL) {
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D("load_file: could not allocate %ld bytes\n", file_size );
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file_size = 0;
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} else {
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DWORD out_bytes;
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if ( !ReadFile( file, data, file_size, &out_bytes, NULL ) ||
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out_bytes != file_size )
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{
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D("load_file: could not read %ld bytes from '%s'\n", file_size, fn);
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free(data);
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data = NULL;
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file_size = 0;
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}
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}
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}
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CloseHandle( file );
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*_sz = (unsigned) file_size;
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return data;
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}
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/**************************************************************************/
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/**************************************************************************/
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/***** *****/
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/***** common file descriptor handling *****/
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/***** *****/
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/**************************************************************************/
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/**************************************************************************/
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/* used to emulate unix-domain socket pairs */
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typedef struct SocketPairRec_* SocketPair;
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typedef struct FHRec_
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{
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FHClass clazz;
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int used;
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int eof;
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union {
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HANDLE handle;
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SOCKET socket;
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SocketPair pair;
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} u;
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HANDLE event;
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int mask;
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char name[32];
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} FHRec;
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#define fh_handle u.handle
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#define fh_socket u.socket
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#define fh_pair u.pair
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#define WIN32_FH_BASE 100
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#define WIN32_MAX_FHS 128
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static adb_mutex_t _win32_lock;
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static FHRec _win32_fhs[ WIN32_MAX_FHS ];
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static int _win32_fh_count;
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static FH
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_fh_from_int( int fd )
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{
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FH f;
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fd -= WIN32_FH_BASE;
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if (fd < 0 || fd >= _win32_fh_count) {
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D( "_fh_from_int: invalid fd %d\n", fd + WIN32_FH_BASE );
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errno = EBADF;
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return NULL;
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}
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f = &_win32_fhs[fd];
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if (f->used == 0) {
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D( "_fh_from_int: invalid fd %d\n", fd + WIN32_FH_BASE );
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errno = EBADF;
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return NULL;
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}
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return f;
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}
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static int
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_fh_to_int( FH f )
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{
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if (f && f->used && f >= _win32_fhs && f < _win32_fhs + WIN32_MAX_FHS)
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return (int)(f - _win32_fhs) + WIN32_FH_BASE;
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return -1;
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}
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static FH
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_fh_alloc( FHClass clazz )
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{
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int nn;
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FH f = NULL;
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adb_mutex_lock( &_win32_lock );
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if (_win32_fh_count < WIN32_MAX_FHS) {
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f = &_win32_fhs[ _win32_fh_count++ ];
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goto Exit;
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}
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for (nn = 0; nn < WIN32_MAX_FHS; nn++) {
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if ( _win32_fhs[nn].clazz == NULL) {
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f = &_win32_fhs[nn];
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goto Exit;
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}
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}
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D( "_fh_alloc: no more free file descriptors\n" );
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Exit:
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if (f) {
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f->clazz = clazz;
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f->used = 1;
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f->eof = 0;
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clazz->_fh_init(f);
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}
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adb_mutex_unlock( &_win32_lock );
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return f;
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}
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static int
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_fh_close( FH f )
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{
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if ( f->used ) {
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f->clazz->_fh_close( f );
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f->used = 0;
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f->eof = 0;
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f->clazz = NULL;
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}
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return 0;
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}
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/**************************************************************************/
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/**************************************************************************/
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/***** *****/
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/***** file-based descriptor handling *****/
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/***** *****/
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/**************************************************************************/
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/**************************************************************************/
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static void _fh_file_init( FH f ) {
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f->fh_handle = INVALID_HANDLE_VALUE;
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}
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static int _fh_file_close( FH f ) {
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CloseHandle( f->fh_handle );
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f->fh_handle = INVALID_HANDLE_VALUE;
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return 0;
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}
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static int _fh_file_read( FH f, void* buf, int len ) {
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DWORD read_bytes;
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if ( !ReadFile( f->fh_handle, buf, (DWORD)len, &read_bytes, NULL ) ) {
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D( "adb_read: could not read %d bytes from %s\n", len, f->name );
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errno = EIO;
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return -1;
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} else if (read_bytes < (DWORD)len) {
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f->eof = 1;
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}
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return (int)read_bytes;
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}
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static int _fh_file_write( FH f, const void* buf, int len ) {
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DWORD wrote_bytes;
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if ( !WriteFile( f->fh_handle, buf, (DWORD)len, &wrote_bytes, NULL ) ) {
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D( "adb_file_write: could not write %d bytes from %s\n", len, f->name );
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errno = EIO;
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return -1;
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} else if (wrote_bytes < (DWORD)len) {
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f->eof = 1;
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}
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return (int)wrote_bytes;
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}
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static int _fh_file_lseek( FH f, int pos, int origin ) {
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DWORD method;
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DWORD result;
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switch (origin)
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{
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case SEEK_SET: method = FILE_BEGIN; break;
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case SEEK_CUR: method = FILE_CURRENT; break;
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case SEEK_END: method = FILE_END; break;
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default:
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errno = EINVAL;
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return -1;
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}
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result = SetFilePointer( f->fh_handle, pos, NULL, method );
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if (result == INVALID_SET_FILE_POINTER) {
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errno = EIO;
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return -1;
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} else {
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f->eof = 0;
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}
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return (int)result;
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}
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/**************************************************************************/
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/**************************************************************************/
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/***** *****/
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/***** file-based descriptor handling *****/
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/***** *****/
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/**************************************************************************/
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/**************************************************************************/
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int adb_open(const char* path, int options)
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{
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FH f;
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DWORD desiredAccess = 0;
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DWORD shareMode = FILE_SHARE_READ | FILE_SHARE_WRITE;
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switch (options) {
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case O_RDONLY:
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desiredAccess = GENERIC_READ;
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break;
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case O_WRONLY:
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desiredAccess = GENERIC_WRITE;
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break;
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case O_RDWR:
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desiredAccess = GENERIC_READ | GENERIC_WRITE;
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break;
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default:
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D("adb_open: invalid options (0x%0x)\n", options);
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errno = EINVAL;
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return -1;
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}
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f = _fh_alloc( &_fh_file_class );
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if ( !f ) {
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errno = ENOMEM;
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return -1;
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}
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f->fh_handle = CreateFile( path, desiredAccess, shareMode, NULL, OPEN_EXISTING,
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0, NULL );
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if ( f->fh_handle == INVALID_HANDLE_VALUE ) {
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_fh_close(f);
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D( "adb_open: could not open '%s':", path );
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switch (GetLastError()) {
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case ERROR_FILE_NOT_FOUND:
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D( "file not found\n" );
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errno = ENOENT;
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return -1;
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case ERROR_PATH_NOT_FOUND:
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D( "path not found\n" );
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errno = ENOTDIR;
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return -1;
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default:
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D( "unknown error\n" );
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errno = ENOENT;
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return -1;
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}
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}
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snprintf( f->name, sizeof(f->name), "%d(%s)", _fh_to_int(f), path );
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D( "adb_open: '%s' => fd %d\n", path, _fh_to_int(f) );
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return _fh_to_int(f);
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}
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/* ignore mode on Win32 */
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int adb_creat(const char* path, int mode)
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{
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FH f;
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f = _fh_alloc( &_fh_file_class );
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if ( !f ) {
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errno = ENOMEM;
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return -1;
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}
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f->fh_handle = CreateFile( path, GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE,
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NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL,
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NULL );
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if ( f->fh_handle == INVALID_HANDLE_VALUE ) {
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_fh_close(f);
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D( "adb_creat: could not open '%s':", path );
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switch (GetLastError()) {
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case ERROR_FILE_NOT_FOUND:
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D( "file not found\n" );
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errno = ENOENT;
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return -1;
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case ERROR_PATH_NOT_FOUND:
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D( "path not found\n" );
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errno = ENOTDIR;
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return -1;
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default:
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D( "unknown error\n" );
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errno = ENOENT;
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return -1;
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}
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}
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snprintf( f->name, sizeof(f->name), "%d(%s)", _fh_to_int(f), path );
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D( "adb_creat: '%s' => fd %d\n", path, _fh_to_int(f) );
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return _fh_to_int(f);
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}
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|
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int adb_read(int fd, void* buf, int len)
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{
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FH f = _fh_from_int(fd);
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|
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if (f == NULL) {
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return -1;
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}
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return f->clazz->_fh_read( f, buf, len );
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}
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|
|
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int adb_write(int fd, const void* buf, int len)
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{
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FH f = _fh_from_int(fd);
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if (f == NULL) {
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return -1;
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}
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return f->clazz->_fh_write(f, buf, len);
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}
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|
|
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int adb_lseek(int fd, int pos, int where)
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{
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FH f = _fh_from_int(fd);
|
|
|
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if (!f) {
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return -1;
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}
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return f->clazz->_fh_lseek(f, pos, where);
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}
|
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|
|
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int adb_shutdown(int fd)
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{
|
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FH f = _fh_from_int(fd);
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|
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if (!f || f->clazz != &_fh_socket_class) {
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D("adb_shutdown: invalid fd %d\n", fd);
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return -1;
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}
|
|
|
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D( "adb_shutdown: %s\n", f->name);
|
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shutdown( f->fh_socket, SD_BOTH );
|
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return 0;
|
|
}
|
|
|
|
|
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int adb_close(int fd)
|
|
{
|
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FH f = _fh_from_int(fd);
|
|
|
|
if (!f) {
|
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return -1;
|
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}
|
|
|
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D( "adb_close: %s\n", f->name);
|
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_fh_close(f);
|
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return 0;
|
|
}
|
|
|
|
/**************************************************************************/
|
|
/**************************************************************************/
|
|
/***** *****/
|
|
/***** socket-based file descriptors *****/
|
|
/***** *****/
|
|
/**************************************************************************/
|
|
/**************************************************************************/
|
|
|
|
#undef setsockopt
|
|
|
|
static void _socket_set_errno( void ) {
|
|
switch (WSAGetLastError()) {
|
|
case 0: errno = 0; break;
|
|
case WSAEWOULDBLOCK: errno = EAGAIN; break;
|
|
case WSAEINTR: errno = EINTR; break;
|
|
default:
|
|
D( "_socket_set_errno: unhandled value %d\n", WSAGetLastError() );
|
|
errno = EINVAL;
|
|
}
|
|
}
|
|
|
|
static void _fh_socket_init( FH f ) {
|
|
f->fh_socket = INVALID_SOCKET;
|
|
f->event = WSACreateEvent();
|
|
f->mask = 0;
|
|
}
|
|
|
|
static int _fh_socket_close( FH f ) {
|
|
/* gently tell any peer that we're closing the socket */
|
|
shutdown( f->fh_socket, SD_BOTH );
|
|
closesocket( f->fh_socket );
|
|
f->fh_socket = INVALID_SOCKET;
|
|
CloseHandle( f->event );
|
|
f->mask = 0;
|
|
return 0;
|
|
}
|
|
|
|
static int _fh_socket_lseek( FH f, int pos, int origin ) {
|
|
errno = EPIPE;
|
|
return -1;
|
|
}
|
|
|
|
static int _fh_socket_read(FH f, void* buf, int len) {
|
|
int result = recv(f->fh_socket, reinterpret_cast<char*>(buf), len, 0);
|
|
if (result == SOCKET_ERROR) {
|
|
_socket_set_errno();
|
|
result = -1;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
static int _fh_socket_write(FH f, const void* buf, int len) {
|
|
int result = send(f->fh_socket, reinterpret_cast<const char*>(buf), len, 0);
|
|
if (result == SOCKET_ERROR) {
|
|
_socket_set_errno();
|
|
result = -1;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**************************************************************************/
|
|
/**************************************************************************/
|
|
/***** *****/
|
|
/***** replacement for libs/cutils/socket_xxxx.c *****/
|
|
/***** *****/
|
|
/**************************************************************************/
|
|
/**************************************************************************/
|
|
|
|
#include <winsock2.h>
|
|
|
|
static int _winsock_init;
|
|
|
|
static void
|
|
_cleanup_winsock( void )
|
|
{
|
|
WSACleanup();
|
|
}
|
|
|
|
static void
|
|
_init_winsock( void )
|
|
{
|
|
if (!_winsock_init) {
|
|
WSADATA wsaData;
|
|
int rc = WSAStartup( MAKEWORD(2,2), &wsaData);
|
|
if (rc != 0) {
|
|
fatal( "adb: could not initialize Winsock\n" );
|
|
}
|
|
atexit( _cleanup_winsock );
|
|
_winsock_init = 1;
|
|
}
|
|
}
|
|
|
|
int socket_loopback_client(int port, int type)
|
|
{
|
|
FH f = _fh_alloc( &_fh_socket_class );
|
|
struct sockaddr_in addr;
|
|
SOCKET s;
|
|
|
|
if (!f)
|
|
return -1;
|
|
|
|
if (!_winsock_init)
|
|
_init_winsock();
|
|
|
|
memset(&addr, 0, sizeof(addr));
|
|
addr.sin_family = AF_INET;
|
|
addr.sin_port = htons(port);
|
|
addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
|
|
|
|
s = socket(AF_INET, type, 0);
|
|
if(s == INVALID_SOCKET) {
|
|
D("socket_loopback_client: could not create socket\n" );
|
|
_fh_close(f);
|
|
return -1;
|
|
}
|
|
|
|
f->fh_socket = s;
|
|
if(connect(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
|
|
D("socket_loopback_client: could not connect to %s:%d\n", type != SOCK_STREAM ? "udp" : "tcp", port );
|
|
_fh_close(f);
|
|
return -1;
|
|
}
|
|
snprintf( f->name, sizeof(f->name), "%d(lo-client:%s%d)", _fh_to_int(f), type != SOCK_STREAM ? "udp:" : "", port );
|
|
D( "socket_loopback_client: port %d type %s => fd %d\n", port, type != SOCK_STREAM ? "udp" : "tcp", _fh_to_int(f) );
|
|
return _fh_to_int(f);
|
|
}
|
|
|
|
#define LISTEN_BACKLOG 4
|
|
|
|
int socket_loopback_server(int port, int type)
|
|
{
|
|
FH f = _fh_alloc( &_fh_socket_class );
|
|
struct sockaddr_in addr;
|
|
SOCKET s;
|
|
int n;
|
|
|
|
if (!f) {
|
|
return -1;
|
|
}
|
|
|
|
if (!_winsock_init)
|
|
_init_winsock();
|
|
|
|
memset(&addr, 0, sizeof(addr));
|
|
addr.sin_family = AF_INET;
|
|
addr.sin_port = htons(port);
|
|
addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
|
|
|
|
s = socket(AF_INET, type, 0);
|
|
if(s == INVALID_SOCKET) return -1;
|
|
|
|
f->fh_socket = s;
|
|
|
|
n = 1;
|
|
setsockopt(s, SOL_SOCKET, SO_EXCLUSIVEADDRUSE, (const char*)&n, sizeof(n));
|
|
|
|
if(bind(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
|
|
_fh_close(f);
|
|
return -1;
|
|
}
|
|
if (type == SOCK_STREAM) {
|
|
int ret;
|
|
|
|
ret = listen(s, LISTEN_BACKLOG);
|
|
if (ret < 0) {
|
|
_fh_close(f);
|
|
return -1;
|
|
}
|
|
}
|
|
snprintf( f->name, sizeof(f->name), "%d(lo-server:%s%d)", _fh_to_int(f), type != SOCK_STREAM ? "udp:" : "", port );
|
|
D( "socket_loopback_server: port %d type %s => fd %d\n", port, type != SOCK_STREAM ? "udp" : "tcp", _fh_to_int(f) );
|
|
return _fh_to_int(f);
|
|
}
|
|
|
|
|
|
int socket_network_client(const char *host, int port, int type)
|
|
{
|
|
FH f = _fh_alloc( &_fh_socket_class );
|
|
struct hostent *hp;
|
|
struct sockaddr_in addr;
|
|
SOCKET s;
|
|
|
|
if (!f)
|
|
return -1;
|
|
|
|
if (!_winsock_init)
|
|
_init_winsock();
|
|
|
|
hp = gethostbyname(host);
|
|
if(hp == 0) {
|
|
_fh_close(f);
|
|
return -1;
|
|
}
|
|
|
|
memset(&addr, 0, sizeof(addr));
|
|
addr.sin_family = hp->h_addrtype;
|
|
addr.sin_port = htons(port);
|
|
memcpy(&addr.sin_addr, hp->h_addr, hp->h_length);
|
|
|
|
s = socket(hp->h_addrtype, type, 0);
|
|
if(s == INVALID_SOCKET) {
|
|
_fh_close(f);
|
|
return -1;
|
|
}
|
|
f->fh_socket = s;
|
|
|
|
if(connect(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
|
|
_fh_close(f);
|
|
return -1;
|
|
}
|
|
|
|
snprintf( f->name, sizeof(f->name), "%d(net-client:%s%d)", _fh_to_int(f), type != SOCK_STREAM ? "udp:" : "", port );
|
|
D( "socket_network_client: host '%s' port %d type %s => fd %d\n", host, port, type != SOCK_STREAM ? "udp" : "tcp", _fh_to_int(f) );
|
|
return _fh_to_int(f);
|
|
}
|
|
|
|
|
|
int socket_network_client_timeout(const char *host, int port, int type, int timeout)
|
|
{
|
|
// TODO: implement timeouts for Windows.
|
|
return socket_network_client(host, port, type);
|
|
}
|
|
|
|
|
|
int socket_inaddr_any_server(int port, int type)
|
|
{
|
|
FH f = _fh_alloc( &_fh_socket_class );
|
|
struct sockaddr_in addr;
|
|
SOCKET s;
|
|
int n;
|
|
|
|
if (!f)
|
|
return -1;
|
|
|
|
if (!_winsock_init)
|
|
_init_winsock();
|
|
|
|
memset(&addr, 0, sizeof(addr));
|
|
addr.sin_family = AF_INET;
|
|
addr.sin_port = htons(port);
|
|
addr.sin_addr.s_addr = htonl(INADDR_ANY);
|
|
|
|
s = socket(AF_INET, type, 0);
|
|
if(s == INVALID_SOCKET) {
|
|
_fh_close(f);
|
|
return -1;
|
|
}
|
|
|
|
f->fh_socket = s;
|
|
n = 1;
|
|
setsockopt(s, SOL_SOCKET, SO_EXCLUSIVEADDRUSE, (const char*)&n, sizeof(n));
|
|
|
|
if(bind(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
|
|
_fh_close(f);
|
|
return -1;
|
|
}
|
|
|
|
if (type == SOCK_STREAM) {
|
|
int ret;
|
|
|
|
ret = listen(s, LISTEN_BACKLOG);
|
|
if (ret < 0) {
|
|
_fh_close(f);
|
|
return -1;
|
|
}
|
|
}
|
|
snprintf( f->name, sizeof(f->name), "%d(any-server:%s%d)", _fh_to_int(f), type != SOCK_STREAM ? "udp:" : "", port );
|
|
D( "socket_inaddr_server: port %d type %s => fd %d\n", port, type != SOCK_STREAM ? "udp" : "tcp", _fh_to_int(f) );
|
|
return _fh_to_int(f);
|
|
}
|
|
|
|
#undef accept
|
|
int adb_socket_accept(int serverfd, struct sockaddr* addr, socklen_t *addrlen)
|
|
{
|
|
FH serverfh = _fh_from_int(serverfd);
|
|
FH fh;
|
|
|
|
if ( !serverfh || serverfh->clazz != &_fh_socket_class ) {
|
|
D( "adb_socket_accept: invalid fd %d\n", serverfd );
|
|
return -1;
|
|
}
|
|
|
|
fh = _fh_alloc( &_fh_socket_class );
|
|
if (!fh) {
|
|
D( "adb_socket_accept: not enough memory to allocate accepted socket descriptor\n" );
|
|
return -1;
|
|
}
|
|
|
|
fh->fh_socket = accept( serverfh->fh_socket, addr, addrlen );
|
|
if (fh->fh_socket == INVALID_SOCKET) {
|
|
_fh_close( fh );
|
|
D( "adb_socket_accept: accept on fd %d return error %ld\n", serverfd, GetLastError() );
|
|
return -1;
|
|
}
|
|
|
|
snprintf( fh->name, sizeof(fh->name), "%d(accept:%s)", _fh_to_int(fh), serverfh->name );
|
|
D( "adb_socket_accept on fd %d returns fd %d\n", serverfd, _fh_to_int(fh) );
|
|
return _fh_to_int(fh);
|
|
}
|
|
|
|
|
|
int adb_setsockopt( int fd, int level, int optname, const void* optval, socklen_t optlen )
|
|
{
|
|
FH fh = _fh_from_int(fd);
|
|
|
|
if ( !fh || fh->clazz != &_fh_socket_class ) {
|
|
D("adb_setsockopt: invalid fd %d\n", fd);
|
|
return -1;
|
|
}
|
|
|
|
return setsockopt( fh->fh_socket, level, optname, reinterpret_cast<const char*>(optval), optlen );
|
|
}
|
|
|
|
/**************************************************************************/
|
|
/**************************************************************************/
|
|
/***** *****/
|
|
/***** emulated socketpairs *****/
|
|
/***** *****/
|
|
/**************************************************************************/
|
|
/**************************************************************************/
|
|
|
|
/* we implement socketpairs directly in use space for the following reasons:
|
|
* - it avoids copying data from/to the Nt kernel
|
|
* - it allows us to implement fdevent hooks easily and cheaply, something
|
|
* that is not possible with standard Win32 pipes !!
|
|
*
|
|
* basically, we use two circular buffers, each one corresponding to a given
|
|
* direction.
|
|
*
|
|
* each buffer is implemented as two regions:
|
|
*
|
|
* region A which is (a_start,a_end)
|
|
* region B which is (0, b_end) with b_end <= a_start
|
|
*
|
|
* an empty buffer has: a_start = a_end = b_end = 0
|
|
*
|
|
* a_start is the pointer where we start reading data
|
|
* a_end is the pointer where we start writing data, unless it is BUFFER_SIZE,
|
|
* then you start writing at b_end
|
|
*
|
|
* the buffer is full when b_end == a_start && a_end == BUFFER_SIZE
|
|
*
|
|
* there is room when b_end < a_start || a_end < BUFER_SIZE
|
|
*
|
|
* when reading, a_start is incremented, it a_start meets a_end, then
|
|
* we do: a_start = 0, a_end = b_end, b_end = 0, and keep going on..
|
|
*/
|
|
|
|
#define BIP_BUFFER_SIZE 4096
|
|
|
|
#if 0
|
|
#include <stdio.h>
|
|
# define BIPD(x) D x
|
|
# define BIPDUMP bip_dump_hex
|
|
|
|
static void bip_dump_hex( const unsigned char* ptr, size_t len )
|
|
{
|
|
int nn, len2 = len;
|
|
|
|
if (len2 > 8) len2 = 8;
|
|
|
|
for (nn = 0; nn < len2; nn++)
|
|
printf("%02x", ptr[nn]);
|
|
printf(" ");
|
|
|
|
for (nn = 0; nn < len2; nn++) {
|
|
int c = ptr[nn];
|
|
if (c < 32 || c > 127)
|
|
c = '.';
|
|
printf("%c", c);
|
|
}
|
|
printf("\n");
|
|
fflush(stdout);
|
|
}
|
|
|
|
#else
|
|
# define BIPD(x) do {} while (0)
|
|
# define BIPDUMP(p,l) BIPD(p)
|
|
#endif
|
|
|
|
typedef struct BipBufferRec_
|
|
{
|
|
int a_start;
|
|
int a_end;
|
|
int b_end;
|
|
int fdin;
|
|
int fdout;
|
|
int closed;
|
|
int can_write; /* boolean */
|
|
HANDLE evt_write; /* event signaled when one can write to a buffer */
|
|
int can_read; /* boolean */
|
|
HANDLE evt_read; /* event signaled when one can read from a buffer */
|
|
CRITICAL_SECTION lock;
|
|
unsigned char buff[ BIP_BUFFER_SIZE ];
|
|
|
|
} BipBufferRec, *BipBuffer;
|
|
|
|
static void
|
|
bip_buffer_init( BipBuffer buffer )
|
|
{
|
|
D( "bit_buffer_init %p\n", buffer );
|
|
buffer->a_start = 0;
|
|
buffer->a_end = 0;
|
|
buffer->b_end = 0;
|
|
buffer->can_write = 1;
|
|
buffer->can_read = 0;
|
|
buffer->fdin = 0;
|
|
buffer->fdout = 0;
|
|
buffer->closed = 0;
|
|
buffer->evt_write = CreateEvent( NULL, TRUE, TRUE, NULL );
|
|
buffer->evt_read = CreateEvent( NULL, TRUE, FALSE, NULL );
|
|
InitializeCriticalSection( &buffer->lock );
|
|
}
|
|
|
|
static void
|
|
bip_buffer_close( BipBuffer bip )
|
|
{
|
|
bip->closed = 1;
|
|
|
|
if (!bip->can_read) {
|
|
SetEvent( bip->evt_read );
|
|
}
|
|
if (!bip->can_write) {
|
|
SetEvent( bip->evt_write );
|
|
}
|
|
}
|
|
|
|
static void
|
|
bip_buffer_done( BipBuffer bip )
|
|
{
|
|
BIPD(( "bip_buffer_done: %d->%d\n", bip->fdin, bip->fdout ));
|
|
CloseHandle( bip->evt_read );
|
|
CloseHandle( bip->evt_write );
|
|
DeleteCriticalSection( &bip->lock );
|
|
}
|
|
|
|
static int
|
|
bip_buffer_write( BipBuffer bip, const void* src, int len )
|
|
{
|
|
int avail, count = 0;
|
|
|
|
if (len <= 0)
|
|
return 0;
|
|
|
|
BIPD(( "bip_buffer_write: enter %d->%d len %d\n", bip->fdin, bip->fdout, len ));
|
|
BIPDUMP( src, len );
|
|
|
|
EnterCriticalSection( &bip->lock );
|
|
|
|
while (!bip->can_write) {
|
|
int ret;
|
|
LeaveCriticalSection( &bip->lock );
|
|
|
|
if (bip->closed) {
|
|
errno = EPIPE;
|
|
return -1;
|
|
}
|
|
/* spinlocking here is probably unfair, but let's live with it */
|
|
ret = WaitForSingleObject( bip->evt_write, INFINITE );
|
|
if (ret != WAIT_OBJECT_0) { /* buffer probably closed */
|
|
D( "bip_buffer_write: error %d->%d WaitForSingleObject returned %d, error %ld\n", bip->fdin, bip->fdout, ret, GetLastError() );
|
|
return 0;
|
|
}
|
|
if (bip->closed) {
|
|
errno = EPIPE;
|
|
return -1;
|
|
}
|
|
EnterCriticalSection( &bip->lock );
|
|
}
|
|
|
|
BIPD(( "bip_buffer_write: exec %d->%d len %d\n", bip->fdin, bip->fdout, len ));
|
|
|
|
avail = BIP_BUFFER_SIZE - bip->a_end;
|
|
if (avail > 0)
|
|
{
|
|
/* we can append to region A */
|
|
if (avail > len)
|
|
avail = len;
|
|
|
|
memcpy( bip->buff + bip->a_end, src, avail );
|
|
src = (const char *)src + avail;
|
|
count += avail;
|
|
len -= avail;
|
|
|
|
bip->a_end += avail;
|
|
if (bip->a_end == BIP_BUFFER_SIZE && bip->a_start == 0) {
|
|
bip->can_write = 0;
|
|
ResetEvent( bip->evt_write );
|
|
goto Exit;
|
|
}
|
|
}
|
|
|
|
if (len == 0)
|
|
goto Exit;
|
|
|
|
avail = bip->a_start - bip->b_end;
|
|
assert( avail > 0 ); /* since can_write is TRUE */
|
|
|
|
if (avail > len)
|
|
avail = len;
|
|
|
|
memcpy( bip->buff + bip->b_end, src, avail );
|
|
count += avail;
|
|
bip->b_end += avail;
|
|
|
|
if (bip->b_end == bip->a_start) {
|
|
bip->can_write = 0;
|
|
ResetEvent( bip->evt_write );
|
|
}
|
|
|
|
Exit:
|
|
assert( count > 0 );
|
|
|
|
if ( !bip->can_read ) {
|
|
bip->can_read = 1;
|
|
SetEvent( bip->evt_read );
|
|
}
|
|
|
|
BIPD(( "bip_buffer_write: exit %d->%d count %d (as=%d ae=%d be=%d cw=%d cr=%d\n",
|
|
bip->fdin, bip->fdout, count, bip->a_start, bip->a_end, bip->b_end, bip->can_write, bip->can_read ));
|
|
LeaveCriticalSection( &bip->lock );
|
|
|
|
return count;
|
|
}
|
|
|
|
static int
|
|
bip_buffer_read( BipBuffer bip, void* dst, int len )
|
|
{
|
|
int avail, count = 0;
|
|
|
|
if (len <= 0)
|
|
return 0;
|
|
|
|
BIPD(( "bip_buffer_read: enter %d->%d len %d\n", bip->fdin, bip->fdout, len ));
|
|
|
|
EnterCriticalSection( &bip->lock );
|
|
while ( !bip->can_read )
|
|
{
|
|
#if 0
|
|
LeaveCriticalSection( &bip->lock );
|
|
errno = EAGAIN;
|
|
return -1;
|
|
#else
|
|
int ret;
|
|
LeaveCriticalSection( &bip->lock );
|
|
|
|
if (bip->closed) {
|
|
errno = EPIPE;
|
|
return -1;
|
|
}
|
|
|
|
ret = WaitForSingleObject( bip->evt_read, INFINITE );
|
|
if (ret != WAIT_OBJECT_0) { /* probably closed buffer */
|
|
D( "bip_buffer_read: error %d->%d WaitForSingleObject returned %d, error %ld\n", bip->fdin, bip->fdout, ret, GetLastError());
|
|
return 0;
|
|
}
|
|
if (bip->closed) {
|
|
errno = EPIPE;
|
|
return -1;
|
|
}
|
|
EnterCriticalSection( &bip->lock );
|
|
#endif
|
|
}
|
|
|
|
BIPD(( "bip_buffer_read: exec %d->%d len %d\n", bip->fdin, bip->fdout, len ));
|
|
|
|
avail = bip->a_end - bip->a_start;
|
|
assert( avail > 0 ); /* since can_read is TRUE */
|
|
|
|
if (avail > len)
|
|
avail = len;
|
|
|
|
memcpy( dst, bip->buff + bip->a_start, avail );
|
|
dst = (char *)dst + avail;
|
|
count += avail;
|
|
len -= avail;
|
|
|
|
bip->a_start += avail;
|
|
if (bip->a_start < bip->a_end)
|
|
goto Exit;
|
|
|
|
bip->a_start = 0;
|
|
bip->a_end = bip->b_end;
|
|
bip->b_end = 0;
|
|
|
|
avail = bip->a_end;
|
|
if (avail > 0) {
|
|
if (avail > len)
|
|
avail = len;
|
|
memcpy( dst, bip->buff, avail );
|
|
count += avail;
|
|
bip->a_start += avail;
|
|
|
|
if ( bip->a_start < bip->a_end )
|
|
goto Exit;
|
|
|
|
bip->a_start = bip->a_end = 0;
|
|
}
|
|
|
|
bip->can_read = 0;
|
|
ResetEvent( bip->evt_read );
|
|
|
|
Exit:
|
|
assert( count > 0 );
|
|
|
|
if (!bip->can_write ) {
|
|
bip->can_write = 1;
|
|
SetEvent( bip->evt_write );
|
|
}
|
|
|
|
BIPDUMP( (const unsigned char*)dst - count, count );
|
|
BIPD(( "bip_buffer_read: exit %d->%d count %d (as=%d ae=%d be=%d cw=%d cr=%d\n",
|
|
bip->fdin, bip->fdout, count, bip->a_start, bip->a_end, bip->b_end, bip->can_write, bip->can_read ));
|
|
LeaveCriticalSection( &bip->lock );
|
|
|
|
return count;
|
|
}
|
|
|
|
typedef struct SocketPairRec_
|
|
{
|
|
BipBufferRec a2b_bip;
|
|
BipBufferRec b2a_bip;
|
|
FH a_fd;
|
|
int used;
|
|
|
|
} SocketPairRec;
|
|
|
|
void _fh_socketpair_init( FH f )
|
|
{
|
|
f->fh_pair = NULL;
|
|
}
|
|
|
|
static int
|
|
_fh_socketpair_close( FH f )
|
|
{
|
|
if ( f->fh_pair ) {
|
|
SocketPair pair = f->fh_pair;
|
|
|
|
if ( f == pair->a_fd ) {
|
|
pair->a_fd = NULL;
|
|
}
|
|
|
|
bip_buffer_close( &pair->b2a_bip );
|
|
bip_buffer_close( &pair->a2b_bip );
|
|
|
|
if ( --pair->used == 0 ) {
|
|
bip_buffer_done( &pair->b2a_bip );
|
|
bip_buffer_done( &pair->a2b_bip );
|
|
free( pair );
|
|
}
|
|
f->fh_pair = NULL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
_fh_socketpair_lseek( FH f, int pos, int origin )
|
|
{
|
|
errno = ESPIPE;
|
|
return -1;
|
|
}
|
|
|
|
static int
|
|
_fh_socketpair_read( FH f, void* buf, int len )
|
|
{
|
|
SocketPair pair = f->fh_pair;
|
|
BipBuffer bip;
|
|
|
|
if (!pair)
|
|
return -1;
|
|
|
|
if ( f == pair->a_fd )
|
|
bip = &pair->b2a_bip;
|
|
else
|
|
bip = &pair->a2b_bip;
|
|
|
|
return bip_buffer_read( bip, buf, len );
|
|
}
|
|
|
|
static int
|
|
_fh_socketpair_write( FH f, const void* buf, int len )
|
|
{
|
|
SocketPair pair = f->fh_pair;
|
|
BipBuffer bip;
|
|
|
|
if (!pair)
|
|
return -1;
|
|
|
|
if ( f == pair->a_fd )
|
|
bip = &pair->a2b_bip;
|
|
else
|
|
bip = &pair->b2a_bip;
|
|
|
|
return bip_buffer_write( bip, buf, len );
|
|
}
|
|
|
|
|
|
static void _fh_socketpair_hook( FH f, int event, EventHook hook ); /* forward */
|
|
|
|
static const FHClassRec _fh_socketpair_class =
|
|
{
|
|
_fh_socketpair_init,
|
|
_fh_socketpair_close,
|
|
_fh_socketpair_lseek,
|
|
_fh_socketpair_read,
|
|
_fh_socketpair_write,
|
|
_fh_socketpair_hook
|
|
};
|
|
|
|
|
|
int adb_socketpair(int sv[2]) {
|
|
SocketPair pair;
|
|
|
|
FH fa = _fh_alloc(&_fh_socketpair_class);
|
|
FH fb = _fh_alloc(&_fh_socketpair_class);
|
|
|
|
if (!fa || !fb)
|
|
goto Fail;
|
|
|
|
pair = reinterpret_cast<SocketPair>(malloc(sizeof(*pair)));
|
|
if (pair == NULL) {
|
|
D("adb_socketpair: not enough memory to allocate pipes\n" );
|
|
goto Fail;
|
|
}
|
|
|
|
bip_buffer_init( &pair->a2b_bip );
|
|
bip_buffer_init( &pair->b2a_bip );
|
|
|
|
fa->fh_pair = pair;
|
|
fb->fh_pair = pair;
|
|
pair->used = 2;
|
|
pair->a_fd = fa;
|
|
|
|
sv[0] = _fh_to_int(fa);
|
|
sv[1] = _fh_to_int(fb);
|
|
|
|
pair->a2b_bip.fdin = sv[0];
|
|
pair->a2b_bip.fdout = sv[1];
|
|
pair->b2a_bip.fdin = sv[1];
|
|
pair->b2a_bip.fdout = sv[0];
|
|
|
|
snprintf( fa->name, sizeof(fa->name), "%d(pair:%d)", sv[0], sv[1] );
|
|
snprintf( fb->name, sizeof(fb->name), "%d(pair:%d)", sv[1], sv[0] );
|
|
D( "adb_socketpair: returns (%d, %d)\n", sv[0], sv[1] );
|
|
return 0;
|
|
|
|
Fail:
|
|
_fh_close(fb);
|
|
_fh_close(fa);
|
|
return -1;
|
|
}
|
|
|
|
/**************************************************************************/
|
|
/**************************************************************************/
|
|
/***** *****/
|
|
/***** fdevents emulation *****/
|
|
/***** *****/
|
|
/***** this is a very simple implementation, we rely on the fact *****/
|
|
/***** that ADB doesn't use FDE_ERROR. *****/
|
|
/***** *****/
|
|
/**************************************************************************/
|
|
/**************************************************************************/
|
|
|
|
#define FATAL(x...) fatal(__FUNCTION__, x)
|
|
|
|
#if DEBUG
|
|
static void dump_fde(fdevent *fde, const char *info)
|
|
{
|
|
fprintf(stderr,"FDE #%03d %c%c%c %s\n", fde->fd,
|
|
fde->state & FDE_READ ? 'R' : ' ',
|
|
fde->state & FDE_WRITE ? 'W' : ' ',
|
|
fde->state & FDE_ERROR ? 'E' : ' ',
|
|
info);
|
|
}
|
|
#else
|
|
#define dump_fde(fde, info) do { } while(0)
|
|
#endif
|
|
|
|
#define FDE_EVENTMASK 0x00ff
|
|
#define FDE_STATEMASK 0xff00
|
|
|
|
#define FDE_ACTIVE 0x0100
|
|
#define FDE_PENDING 0x0200
|
|
#define FDE_CREATED 0x0400
|
|
|
|
static void fdevent_plist_enqueue(fdevent *node);
|
|
static void fdevent_plist_remove(fdevent *node);
|
|
static fdevent *fdevent_plist_dequeue(void);
|
|
|
|
static fdevent list_pending = {
|
|
.next = &list_pending,
|
|
.prev = &list_pending,
|
|
};
|
|
|
|
static fdevent **fd_table = 0;
|
|
static int fd_table_max = 0;
|
|
|
|
typedef struct EventLooperRec_* EventLooper;
|
|
|
|
typedef struct EventHookRec_
|
|
{
|
|
EventHook next;
|
|
FH fh;
|
|
HANDLE h;
|
|
int wanted; /* wanted event flags */
|
|
int ready; /* ready event flags */
|
|
void* aux;
|
|
void (*prepare)( EventHook hook );
|
|
int (*start) ( EventHook hook );
|
|
void (*stop) ( EventHook hook );
|
|
int (*check) ( EventHook hook );
|
|
int (*peek) ( EventHook hook );
|
|
} EventHookRec;
|
|
|
|
static EventHook _free_hooks;
|
|
|
|
static EventHook
|
|
event_hook_alloc(FH fh) {
|
|
EventHook hook = _free_hooks;
|
|
if (hook != NULL) {
|
|
_free_hooks = hook->next;
|
|
} else {
|
|
hook = reinterpret_cast<EventHook>(malloc(sizeof(*hook)));
|
|
if (hook == NULL)
|
|
fatal( "could not allocate event hook\n" );
|
|
}
|
|
hook->next = NULL;
|
|
hook->fh = fh;
|
|
hook->wanted = 0;
|
|
hook->ready = 0;
|
|
hook->h = INVALID_HANDLE_VALUE;
|
|
hook->aux = NULL;
|
|
|
|
hook->prepare = NULL;
|
|
hook->start = NULL;
|
|
hook->stop = NULL;
|
|
hook->check = NULL;
|
|
hook->peek = NULL;
|
|
|
|
return hook;
|
|
}
|
|
|
|
static void
|
|
event_hook_free( EventHook hook )
|
|
{
|
|
hook->fh = NULL;
|
|
hook->wanted = 0;
|
|
hook->ready = 0;
|
|
hook->next = _free_hooks;
|
|
_free_hooks = hook;
|
|
}
|
|
|
|
|
|
static void
|
|
event_hook_signal( EventHook hook )
|
|
{
|
|
FH f = hook->fh;
|
|
int fd = _fh_to_int(f);
|
|
fdevent* fde = fd_table[ fd - WIN32_FH_BASE ];
|
|
|
|
if (fde != NULL && fde->fd == fd) {
|
|
if ((fde->state & FDE_PENDING) == 0) {
|
|
fde->state |= FDE_PENDING;
|
|
fdevent_plist_enqueue( fde );
|
|
}
|
|
fde->events |= hook->wanted;
|
|
}
|
|
}
|
|
|
|
|
|
#define MAX_LOOPER_HANDLES WIN32_MAX_FHS
|
|
|
|
typedef struct EventLooperRec_
|
|
{
|
|
EventHook hooks;
|
|
HANDLE htab[ MAX_LOOPER_HANDLES ];
|
|
int htab_count;
|
|
|
|
} EventLooperRec;
|
|
|
|
static EventHook*
|
|
event_looper_find_p( EventLooper looper, FH fh )
|
|
{
|
|
EventHook *pnode = &looper->hooks;
|
|
EventHook node = *pnode;
|
|
for (;;) {
|
|
if ( node == NULL || node->fh == fh )
|
|
break;
|
|
pnode = &node->next;
|
|
node = *pnode;
|
|
}
|
|
return pnode;
|
|
}
|
|
|
|
static void
|
|
event_looper_hook( EventLooper looper, int fd, int events )
|
|
{
|
|
FH f = _fh_from_int(fd);
|
|
EventHook *pnode;
|
|
EventHook node;
|
|
|
|
if (f == NULL) /* invalid arg */ {
|
|
D("event_looper_hook: invalid fd=%d\n", fd);
|
|
return;
|
|
}
|
|
|
|
pnode = event_looper_find_p( looper, f );
|
|
node = *pnode;
|
|
if ( node == NULL ) {
|
|
node = event_hook_alloc( f );
|
|
node->next = *pnode;
|
|
*pnode = node;
|
|
}
|
|
|
|
if ( (node->wanted & events) != events ) {
|
|
/* this should update start/stop/check/peek */
|
|
D("event_looper_hook: call hook for %d (new=%x, old=%x)\n",
|
|
fd, node->wanted, events);
|
|
f->clazz->_fh_hook( f, events & ~node->wanted, node );
|
|
node->wanted |= events;
|
|
} else {
|
|
D("event_looper_hook: ignoring events %x for %d wanted=%x)\n",
|
|
events, fd, node->wanted);
|
|
}
|
|
}
|
|
|
|
static void
|
|
event_looper_unhook( EventLooper looper, int fd, int events )
|
|
{
|
|
FH fh = _fh_from_int(fd);
|
|
EventHook *pnode = event_looper_find_p( looper, fh );
|
|
EventHook node = *pnode;
|
|
|
|
if (node != NULL) {
|
|
int events2 = events & node->wanted;
|
|
if ( events2 == 0 ) {
|
|
D( "event_looper_unhook: events %x not registered for fd %d\n", events, fd );
|
|
return;
|
|
}
|
|
node->wanted &= ~events2;
|
|
if (!node->wanted) {
|
|
*pnode = node->next;
|
|
event_hook_free( node );
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* A fixer for WaitForMultipleObjects on condition that there are more than 64
|
|
* handles to wait on.
|
|
*
|
|
* In cetain cases DDMS may establish more than 64 connections with ADB. For
|
|
* instance, this may happen if there are more than 64 processes running on a
|
|
* device, or there are multiple devices connected (including the emulator) with
|
|
* the combined number of running processes greater than 64. In this case using
|
|
* WaitForMultipleObjects to wait on connection events simply wouldn't cut,
|
|
* because of the API limitations (64 handles max). So, we need to provide a way
|
|
* to scale WaitForMultipleObjects to accept an arbitrary number of handles. The
|
|
* easiest (and "Microsoft recommended") way to do that would be dividing the
|
|
* handle array into chunks with the chunk size less than 64, and fire up as many
|
|
* waiting threads as there are chunks. Then each thread would wait on a chunk of
|
|
* handles, and will report back to the caller which handle has been set.
|
|
* Here is the implementation of that algorithm.
|
|
*/
|
|
|
|
/* Number of handles to wait on in each wating thread. */
|
|
#define WAIT_ALL_CHUNK_SIZE 63
|
|
|
|
/* Descriptor for a wating thread */
|
|
typedef struct WaitForAllParam {
|
|
/* A handle to an event to signal when waiting is over. This handle is shared
|
|
* accross all the waiting threads, so each waiting thread knows when any
|
|
* other thread has exited, so it can exit too. */
|
|
HANDLE main_event;
|
|
/* Upon exit from a waiting thread contains the index of the handle that has
|
|
* been signaled. The index is an absolute index of the signaled handle in
|
|
* the original array. This pointer is shared accross all the waiting threads
|
|
* and it's not guaranteed (due to a race condition) that when all the
|
|
* waiting threads exit, the value contained here would indicate the first
|
|
* handle that was signaled. This is fine, because the caller cares only
|
|
* about any handle being signaled. It doesn't care about the order, nor
|
|
* about the whole list of handles that were signaled. */
|
|
LONG volatile *signaled_index;
|
|
/* Array of handles to wait on in a waiting thread. */
|
|
HANDLE* handles;
|
|
/* Number of handles in 'handles' array to wait on. */
|
|
int handles_count;
|
|
/* Index inside the main array of the first handle in the 'handles' array. */
|
|
int first_handle_index;
|
|
/* Waiting thread handle. */
|
|
HANDLE thread;
|
|
} WaitForAllParam;
|
|
|
|
/* Waiting thread routine. */
|
|
static unsigned __stdcall
|
|
_in_waiter_thread(void* arg)
|
|
{
|
|
HANDLE wait_on[WAIT_ALL_CHUNK_SIZE + 1];
|
|
int res;
|
|
WaitForAllParam* const param = (WaitForAllParam*)arg;
|
|
|
|
/* We have to wait on the main_event in order to be notified when any of the
|
|
* sibling threads is exiting. */
|
|
wait_on[0] = param->main_event;
|
|
/* The rest of the handles go behind the main event handle. */
|
|
memcpy(wait_on + 1, param->handles, param->handles_count * sizeof(HANDLE));
|
|
|
|
res = WaitForMultipleObjects(param->handles_count + 1, wait_on, FALSE, INFINITE);
|
|
if (res > 0 && res < (param->handles_count + 1)) {
|
|
/* One of the original handles got signaled. Save its absolute index into
|
|
* the output variable. */
|
|
InterlockedCompareExchange(param->signaled_index,
|
|
res - 1L + param->first_handle_index, -1L);
|
|
}
|
|
|
|
/* Notify the caller (and the siblings) that the wait is over. */
|
|
SetEvent(param->main_event);
|
|
|
|
_endthreadex(0);
|
|
return 0;
|
|
}
|
|
|
|
/* WaitForMultipeObjects fixer routine.
|
|
* Param:
|
|
* handles Array of handles to wait on.
|
|
* handles_count Number of handles in the array.
|
|
* Return:
|
|
* (>= 0 && < handles_count) - Index of the signaled handle in the array, or
|
|
* WAIT_FAILED on an error.
|
|
*/
|
|
static int
|
|
_wait_for_all(HANDLE* handles, int handles_count)
|
|
{
|
|
WaitForAllParam* threads;
|
|
HANDLE main_event;
|
|
int chunks, chunk, remains;
|
|
|
|
/* This variable is going to be accessed by several threads at the same time,
|
|
* this is bound to fail randomly when the core is run on multi-core machines.
|
|
* To solve this, we need to do the following (1 _and_ 2):
|
|
* 1. Use the "volatile" qualifier to ensure the compiler doesn't optimize
|
|
* out the reads/writes in this function unexpectedly.
|
|
* 2. Ensure correct memory ordering. The "simple" way to do that is to wrap
|
|
* all accesses inside a critical section. But we can also use
|
|
* InterlockedCompareExchange() which always provide a full memory barrier
|
|
* on Win32.
|
|
*/
|
|
volatile LONG sig_index = -1;
|
|
|
|
/* Calculate number of chunks, and allocate thread param array. */
|
|
chunks = handles_count / WAIT_ALL_CHUNK_SIZE;
|
|
remains = handles_count % WAIT_ALL_CHUNK_SIZE;
|
|
threads = (WaitForAllParam*)malloc((chunks + (remains ? 1 : 0)) *
|
|
sizeof(WaitForAllParam));
|
|
if (threads == NULL) {
|
|
D("Unable to allocate thread array for %d handles.", handles_count);
|
|
return (int)WAIT_FAILED;
|
|
}
|
|
|
|
/* Create main event to wait on for all waiting threads. This is a "manualy
|
|
* reset" event that will remain set once it was set. */
|
|
main_event = CreateEvent(NULL, TRUE, FALSE, NULL);
|
|
if (main_event == NULL) {
|
|
D("Unable to create main event. Error: %d", (int)GetLastError());
|
|
free(threads);
|
|
return (int)WAIT_FAILED;
|
|
}
|
|
|
|
/*
|
|
* Initialize waiting thread parameters.
|
|
*/
|
|
|
|
for (chunk = 0; chunk < chunks; chunk++) {
|
|
threads[chunk].main_event = main_event;
|
|
threads[chunk].signaled_index = &sig_index;
|
|
threads[chunk].first_handle_index = WAIT_ALL_CHUNK_SIZE * chunk;
|
|
threads[chunk].handles = handles + threads[chunk].first_handle_index;
|
|
threads[chunk].handles_count = WAIT_ALL_CHUNK_SIZE;
|
|
}
|
|
if (remains) {
|
|
threads[chunk].main_event = main_event;
|
|
threads[chunk].signaled_index = &sig_index;
|
|
threads[chunk].first_handle_index = WAIT_ALL_CHUNK_SIZE * chunk;
|
|
threads[chunk].handles = handles + threads[chunk].first_handle_index;
|
|
threads[chunk].handles_count = remains;
|
|
chunks++;
|
|
}
|
|
|
|
/* Start the waiting threads. */
|
|
for (chunk = 0; chunk < chunks; chunk++) {
|
|
/* Note that using adb_thread_create is not appropriate here, since we
|
|
* need a handle to wait on for thread termination. */
|
|
threads[chunk].thread = (HANDLE)_beginthreadex(NULL, 0, _in_waiter_thread,
|
|
&threads[chunk], 0, NULL);
|
|
if (threads[chunk].thread == NULL) {
|
|
/* Unable to create a waiter thread. Collapse. */
|
|
D("Unable to create a waiting thread %d of %d. errno=%d",
|
|
chunk, chunks, errno);
|
|
chunks = chunk;
|
|
SetEvent(main_event);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Wait on any of the threads to get signaled. */
|
|
WaitForSingleObject(main_event, INFINITE);
|
|
|
|
/* Wait on all the waiting threads to exit. */
|
|
for (chunk = 0; chunk < chunks; chunk++) {
|
|
WaitForSingleObject(threads[chunk].thread, INFINITE);
|
|
CloseHandle(threads[chunk].thread);
|
|
}
|
|
|
|
CloseHandle(main_event);
|
|
free(threads);
|
|
|
|
|
|
const int ret = (int)InterlockedCompareExchange(&sig_index, -1, -1);
|
|
return (ret >= 0) ? ret : (int)WAIT_FAILED;
|
|
}
|
|
|
|
static EventLooperRec win32_looper;
|
|
|
|
static void fdevent_init(void)
|
|
{
|
|
win32_looper.htab_count = 0;
|
|
win32_looper.hooks = NULL;
|
|
}
|
|
|
|
static void fdevent_connect(fdevent *fde)
|
|
{
|
|
EventLooper looper = &win32_looper;
|
|
int events = fde->state & FDE_EVENTMASK;
|
|
|
|
if (events != 0)
|
|
event_looper_hook( looper, fde->fd, events );
|
|
}
|
|
|
|
static void fdevent_disconnect(fdevent *fde)
|
|
{
|
|
EventLooper looper = &win32_looper;
|
|
int events = fde->state & FDE_EVENTMASK;
|
|
|
|
if (events != 0)
|
|
event_looper_unhook( looper, fde->fd, events );
|
|
}
|
|
|
|
static void fdevent_update(fdevent *fde, unsigned events)
|
|
{
|
|
EventLooper looper = &win32_looper;
|
|
unsigned events0 = fde->state & FDE_EVENTMASK;
|
|
|
|
if (events != events0) {
|
|
int removes = events0 & ~events;
|
|
int adds = events & ~events0;
|
|
if (removes) {
|
|
D("fdevent_update: remove %x from %d\n", removes, fde->fd);
|
|
event_looper_unhook( looper, fde->fd, removes );
|
|
}
|
|
if (adds) {
|
|
D("fdevent_update: add %x to %d\n", adds, fde->fd);
|
|
event_looper_hook ( looper, fde->fd, adds );
|
|
}
|
|
}
|
|
}
|
|
|
|
static void fdevent_process()
|
|
{
|
|
EventLooper looper = &win32_looper;
|
|
EventHook hook;
|
|
int gotone = 0;
|
|
|
|
/* if we have at least one ready hook, execute it/them */
|
|
for (hook = looper->hooks; hook; hook = hook->next) {
|
|
hook->ready = 0;
|
|
if (hook->prepare) {
|
|
hook->prepare(hook);
|
|
if (hook->ready != 0) {
|
|
event_hook_signal( hook );
|
|
gotone = 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* nothing's ready yet, so wait for something to happen */
|
|
if (!gotone)
|
|
{
|
|
looper->htab_count = 0;
|
|
|
|
for (hook = looper->hooks; hook; hook = hook->next)
|
|
{
|
|
if (hook->start && !hook->start(hook)) {
|
|
D( "fdevent_process: error when starting a hook\n" );
|
|
return;
|
|
}
|
|
if (hook->h != INVALID_HANDLE_VALUE) {
|
|
int nn;
|
|
|
|
for (nn = 0; nn < looper->htab_count; nn++)
|
|
{
|
|
if ( looper->htab[nn] == hook->h )
|
|
goto DontAdd;
|
|
}
|
|
looper->htab[ looper->htab_count++ ] = hook->h;
|
|
DontAdd:
|
|
;
|
|
}
|
|
}
|
|
|
|
if (looper->htab_count == 0) {
|
|
D( "fdevent_process: nothing to wait for !!\n" );
|
|
return;
|
|
}
|
|
|
|
do
|
|
{
|
|
int wait_ret;
|
|
|
|
D( "adb_win32: waiting for %d events\n", looper->htab_count );
|
|
if (looper->htab_count > MAXIMUM_WAIT_OBJECTS) {
|
|
D("handle count %d exceeds MAXIMUM_WAIT_OBJECTS.\n", looper->htab_count);
|
|
wait_ret = _wait_for_all(looper->htab, looper->htab_count);
|
|
} else {
|
|
wait_ret = WaitForMultipleObjects( looper->htab_count, looper->htab, FALSE, INFINITE );
|
|
}
|
|
if (wait_ret == (int)WAIT_FAILED) {
|
|
D( "adb_win32: wait failed, error %ld\n", GetLastError() );
|
|
} else {
|
|
D( "adb_win32: got one (index %d)\n", wait_ret );
|
|
|
|
/* according to Cygwin, some objects like consoles wake up on "inappropriate" events
|
|
* like mouse movements. we need to filter these with the "check" function
|
|
*/
|
|
if ((unsigned)wait_ret < (unsigned)looper->htab_count)
|
|
{
|
|
for (hook = looper->hooks; hook; hook = hook->next)
|
|
{
|
|
if ( looper->htab[wait_ret] == hook->h &&
|
|
(!hook->check || hook->check(hook)) )
|
|
{
|
|
D( "adb_win32: signaling %s for %x\n", hook->fh->name, hook->ready );
|
|
event_hook_signal( hook );
|
|
gotone = 1;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
while (!gotone);
|
|
|
|
for (hook = looper->hooks; hook; hook = hook->next) {
|
|
if (hook->stop)
|
|
hook->stop( hook );
|
|
}
|
|
}
|
|
|
|
for (hook = looper->hooks; hook; hook = hook->next) {
|
|
if (hook->peek && hook->peek(hook))
|
|
event_hook_signal( hook );
|
|
}
|
|
}
|
|
|
|
|
|
static void fdevent_register(fdevent *fde)
|
|
{
|
|
int fd = fde->fd - WIN32_FH_BASE;
|
|
|
|
if(fd < 0) {
|
|
FATAL("bogus negative fd (%d)\n", fde->fd);
|
|
}
|
|
|
|
if(fd >= fd_table_max) {
|
|
int oldmax = fd_table_max;
|
|
if(fde->fd > 32000) {
|
|
FATAL("bogus huuuuge fd (%d)\n", fde->fd);
|
|
}
|
|
if(fd_table_max == 0) {
|
|
fdevent_init();
|
|
fd_table_max = 256;
|
|
}
|
|
while(fd_table_max <= fd) {
|
|
fd_table_max *= 2;
|
|
}
|
|
fd_table = reinterpret_cast<fdevent**>(realloc(fd_table, sizeof(fdevent*) * fd_table_max));
|
|
if(fd_table == 0) {
|
|
FATAL("could not expand fd_table to %d entries\n", fd_table_max);
|
|
}
|
|
memset(fd_table + oldmax, 0, sizeof(int) * (fd_table_max - oldmax));
|
|
}
|
|
|
|
fd_table[fd] = fde;
|
|
}
|
|
|
|
static void fdevent_unregister(fdevent *fde)
|
|
{
|
|
int fd = fde->fd - WIN32_FH_BASE;
|
|
|
|
if((fd < 0) || (fd >= fd_table_max)) {
|
|
FATAL("fd out of range (%d)\n", fde->fd);
|
|
}
|
|
|
|
if(fd_table[fd] != fde) {
|
|
FATAL("fd_table out of sync");
|
|
}
|
|
|
|
fd_table[fd] = 0;
|
|
|
|
if(!(fde->state & FDE_DONT_CLOSE)) {
|
|
dump_fde(fde, "close");
|
|
adb_close(fde->fd);
|
|
}
|
|
}
|
|
|
|
static void fdevent_plist_enqueue(fdevent *node)
|
|
{
|
|
fdevent *list = &list_pending;
|
|
|
|
node->next = list;
|
|
node->prev = list->prev;
|
|
node->prev->next = node;
|
|
list->prev = node;
|
|
}
|
|
|
|
static void fdevent_plist_remove(fdevent *node)
|
|
{
|
|
node->prev->next = node->next;
|
|
node->next->prev = node->prev;
|
|
node->next = 0;
|
|
node->prev = 0;
|
|
}
|
|
|
|
static fdevent *fdevent_plist_dequeue(void)
|
|
{
|
|
fdevent *list = &list_pending;
|
|
fdevent *node = list->next;
|
|
|
|
if(node == list) return 0;
|
|
|
|
list->next = node->next;
|
|
list->next->prev = list;
|
|
node->next = 0;
|
|
node->prev = 0;
|
|
|
|
return node;
|
|
}
|
|
|
|
fdevent *fdevent_create(int fd, fd_func func, void *arg)
|
|
{
|
|
fdevent *fde = (fdevent*) malloc(sizeof(fdevent));
|
|
if(fde == 0) return 0;
|
|
fdevent_install(fde, fd, func, arg);
|
|
fde->state |= FDE_CREATED;
|
|
return fde;
|
|
}
|
|
|
|
void fdevent_destroy(fdevent *fde)
|
|
{
|
|
if(fde == 0) return;
|
|
if(!(fde->state & FDE_CREATED)) {
|
|
FATAL("fde %p not created by fdevent_create()\n", fde);
|
|
}
|
|
fdevent_remove(fde);
|
|
}
|
|
|
|
void fdevent_install(fdevent *fde, int fd, fd_func func, void *arg)
|
|
{
|
|
memset(fde, 0, sizeof(fdevent));
|
|
fde->state = FDE_ACTIVE;
|
|
fde->fd = fd;
|
|
fde->func = func;
|
|
fde->arg = arg;
|
|
|
|
fdevent_register(fde);
|
|
dump_fde(fde, "connect");
|
|
fdevent_connect(fde);
|
|
fde->state |= FDE_ACTIVE;
|
|
}
|
|
|
|
void fdevent_remove(fdevent *fde)
|
|
{
|
|
if(fde->state & FDE_PENDING) {
|
|
fdevent_plist_remove(fde);
|
|
}
|
|
|
|
if(fde->state & FDE_ACTIVE) {
|
|
fdevent_disconnect(fde);
|
|
dump_fde(fde, "disconnect");
|
|
fdevent_unregister(fde);
|
|
}
|
|
|
|
fde->state = 0;
|
|
fde->events = 0;
|
|
}
|
|
|
|
|
|
void fdevent_set(fdevent *fde, unsigned events)
|
|
{
|
|
events &= FDE_EVENTMASK;
|
|
|
|
if((fde->state & FDE_EVENTMASK) == (int)events) return;
|
|
|
|
if(fde->state & FDE_ACTIVE) {
|
|
fdevent_update(fde, events);
|
|
dump_fde(fde, "update");
|
|
}
|
|
|
|
fde->state = (fde->state & FDE_STATEMASK) | events;
|
|
|
|
if(fde->state & FDE_PENDING) {
|
|
/* if we're pending, make sure
|
|
** we don't signal an event that
|
|
** is no longer wanted.
|
|
*/
|
|
fde->events &= (~events);
|
|
if(fde->events == 0) {
|
|
fdevent_plist_remove(fde);
|
|
fde->state &= (~FDE_PENDING);
|
|
}
|
|
}
|
|
}
|
|
|
|
void fdevent_add(fdevent *fde, unsigned events)
|
|
{
|
|
fdevent_set(
|
|
fde, (fde->state & FDE_EVENTMASK) | (events & FDE_EVENTMASK));
|
|
}
|
|
|
|
void fdevent_del(fdevent *fde, unsigned events)
|
|
{
|
|
fdevent_set(
|
|
fde, (fde->state & FDE_EVENTMASK) & (~(events & FDE_EVENTMASK)));
|
|
}
|
|
|
|
void fdevent_loop()
|
|
{
|
|
fdevent *fde;
|
|
|
|
for(;;) {
|
|
#if DEBUG
|
|
fprintf(stderr,"--- ---- waiting for events\n");
|
|
#endif
|
|
fdevent_process();
|
|
|
|
while((fde = fdevent_plist_dequeue())) {
|
|
unsigned events = fde->events;
|
|
fde->events = 0;
|
|
fde->state &= (~FDE_PENDING);
|
|
dump_fde(fde, "callback");
|
|
fde->func(fde->fd, events, fde->arg);
|
|
}
|
|
}
|
|
}
|
|
|
|
/** FILE EVENT HOOKS
|
|
**/
|
|
|
|
static void _event_file_prepare( EventHook hook )
|
|
{
|
|
if (hook->wanted & (FDE_READ|FDE_WRITE)) {
|
|
/* we can always read/write */
|
|
hook->ready |= hook->wanted & (FDE_READ|FDE_WRITE);
|
|
}
|
|
}
|
|
|
|
static int _event_file_peek( EventHook hook )
|
|
{
|
|
return (hook->wanted & (FDE_READ|FDE_WRITE));
|
|
}
|
|
|
|
static void _fh_file_hook( FH f, int events, EventHook hook )
|
|
{
|
|
hook->h = f->fh_handle;
|
|
hook->prepare = _event_file_prepare;
|
|
hook->peek = _event_file_peek;
|
|
}
|
|
|
|
/** SOCKET EVENT HOOKS
|
|
**/
|
|
|
|
static void _event_socket_verify( EventHook hook, WSANETWORKEVENTS* evts )
|
|
{
|
|
if ( evts->lNetworkEvents & (FD_READ|FD_ACCEPT|FD_CLOSE) ) {
|
|
if (hook->wanted & FDE_READ)
|
|
hook->ready |= FDE_READ;
|
|
if ((evts->iErrorCode[FD_READ] != 0) && hook->wanted & FDE_ERROR)
|
|
hook->ready |= FDE_ERROR;
|
|
}
|
|
if ( evts->lNetworkEvents & (FD_WRITE|FD_CONNECT|FD_CLOSE) ) {
|
|
if (hook->wanted & FDE_WRITE)
|
|
hook->ready |= FDE_WRITE;
|
|
if ((evts->iErrorCode[FD_WRITE] != 0) && hook->wanted & FDE_ERROR)
|
|
hook->ready |= FDE_ERROR;
|
|
}
|
|
if ( evts->lNetworkEvents & FD_OOB ) {
|
|
if (hook->wanted & FDE_ERROR)
|
|
hook->ready |= FDE_ERROR;
|
|
}
|
|
}
|
|
|
|
static void _event_socket_prepare( EventHook hook )
|
|
{
|
|
WSANETWORKEVENTS evts;
|
|
|
|
/* look if some of the events we want already happened ? */
|
|
if (!WSAEnumNetworkEvents( hook->fh->fh_socket, NULL, &evts ))
|
|
_event_socket_verify( hook, &evts );
|
|
}
|
|
|
|
static int _socket_wanted_to_flags( int wanted )
|
|
{
|
|
int flags = 0;
|
|
if (wanted & FDE_READ)
|
|
flags |= FD_READ | FD_ACCEPT | FD_CLOSE;
|
|
|
|
if (wanted & FDE_WRITE)
|
|
flags |= FD_WRITE | FD_CONNECT | FD_CLOSE;
|
|
|
|
if (wanted & FDE_ERROR)
|
|
flags |= FD_OOB;
|
|
|
|
return flags;
|
|
}
|
|
|
|
static int _event_socket_start( EventHook hook )
|
|
{
|
|
/* create an event which we're going to wait for */
|
|
FH fh = hook->fh;
|
|
long flags = _socket_wanted_to_flags( hook->wanted );
|
|
|
|
hook->h = fh->event;
|
|
if (hook->h == INVALID_HANDLE_VALUE) {
|
|
D( "_event_socket_start: no event for %s\n", fh->name );
|
|
return 0;
|
|
}
|
|
|
|
if ( flags != fh->mask ) {
|
|
D( "_event_socket_start: hooking %s for %x (flags %ld)\n", hook->fh->name, hook->wanted, flags );
|
|
if ( WSAEventSelect( fh->fh_socket, hook->h, flags ) ) {
|
|
D( "_event_socket_start: WSAEventSelect() for %s failed, error %d\n", hook->fh->name, WSAGetLastError() );
|
|
CloseHandle( hook->h );
|
|
hook->h = INVALID_HANDLE_VALUE;
|
|
exit(1);
|
|
return 0;
|
|
}
|
|
fh->mask = flags;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static void _event_socket_stop( EventHook hook )
|
|
{
|
|
hook->h = INVALID_HANDLE_VALUE;
|
|
}
|
|
|
|
static int _event_socket_check( EventHook hook )
|
|
{
|
|
int result = 0;
|
|
FH fh = hook->fh;
|
|
WSANETWORKEVENTS evts;
|
|
|
|
if (!WSAEnumNetworkEvents( fh->fh_socket, hook->h, &evts ) ) {
|
|
_event_socket_verify( hook, &evts );
|
|
result = (hook->ready != 0);
|
|
if (result) {
|
|
ResetEvent( hook->h );
|
|
}
|
|
}
|
|
D( "_event_socket_check %s returns %d\n", fh->name, result );
|
|
return result;
|
|
}
|
|
|
|
static int _event_socket_peek( EventHook hook )
|
|
{
|
|
WSANETWORKEVENTS evts;
|
|
FH fh = hook->fh;
|
|
|
|
/* look if some of the events we want already happened ? */
|
|
if (!WSAEnumNetworkEvents( fh->fh_socket, NULL, &evts )) {
|
|
_event_socket_verify( hook, &evts );
|
|
if (hook->ready)
|
|
ResetEvent( hook->h );
|
|
}
|
|
|
|
return hook->ready != 0;
|
|
}
|
|
|
|
|
|
|
|
static void _fh_socket_hook( FH f, int events, EventHook hook )
|
|
{
|
|
hook->prepare = _event_socket_prepare;
|
|
hook->start = _event_socket_start;
|
|
hook->stop = _event_socket_stop;
|
|
hook->check = _event_socket_check;
|
|
hook->peek = _event_socket_peek;
|
|
|
|
_event_socket_start( hook );
|
|
}
|
|
|
|
/** SOCKETPAIR EVENT HOOKS
|
|
**/
|
|
|
|
static void _event_socketpair_prepare( EventHook hook )
|
|
{
|
|
FH fh = hook->fh;
|
|
SocketPair pair = fh->fh_pair;
|
|
BipBuffer rbip = (pair->a_fd == fh) ? &pair->b2a_bip : &pair->a2b_bip;
|
|
BipBuffer wbip = (pair->a_fd == fh) ? &pair->a2b_bip : &pair->b2a_bip;
|
|
|
|
if (hook->wanted & FDE_READ && rbip->can_read)
|
|
hook->ready |= FDE_READ;
|
|
|
|
if (hook->wanted & FDE_WRITE && wbip->can_write)
|
|
hook->ready |= FDE_WRITE;
|
|
}
|
|
|
|
static int _event_socketpair_start( EventHook hook )
|
|
{
|
|
FH fh = hook->fh;
|
|
SocketPair pair = fh->fh_pair;
|
|
BipBuffer rbip = (pair->a_fd == fh) ? &pair->b2a_bip : &pair->a2b_bip;
|
|
BipBuffer wbip = (pair->a_fd == fh) ? &pair->a2b_bip : &pair->b2a_bip;
|
|
|
|
if (hook->wanted == FDE_READ)
|
|
hook->h = rbip->evt_read;
|
|
|
|
else if (hook->wanted == FDE_WRITE)
|
|
hook->h = wbip->evt_write;
|
|
|
|
else {
|
|
D("_event_socketpair_start: can't handle FDE_READ+FDE_WRITE\n" );
|
|
return 0;
|
|
}
|
|
D( "_event_socketpair_start: hook %s for %x wanted=%x\n",
|
|
hook->fh->name, _fh_to_int(fh), hook->wanted);
|
|
return 1;
|
|
}
|
|
|
|
static int _event_socketpair_peek( EventHook hook )
|
|
{
|
|
_event_socketpair_prepare( hook );
|
|
return hook->ready != 0;
|
|
}
|
|
|
|
static void _fh_socketpair_hook( FH fh, int events, EventHook hook )
|
|
{
|
|
hook->prepare = _event_socketpair_prepare;
|
|
hook->start = _event_socketpair_start;
|
|
hook->peek = _event_socketpair_peek;
|
|
}
|
|
|
|
|
|
void
|
|
adb_sysdeps_init( void )
|
|
{
|
|
#define ADB_MUTEX(x) InitializeCriticalSection( & x );
|
|
#include "mutex_list.h"
|
|
InitializeCriticalSection( &_win32_lock );
|
|
}
|
|
|
|
/**************************************************************************/
|
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/**************************************************************************/
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/***** *****/
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/***** Console Window Terminal Emulation *****/
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/***** *****/
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/**************************************************************************/
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/**************************************************************************/
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// This reads input from a Win32 console window and translates it into Unix
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// terminal-style sequences. This emulates mostly Gnome Terminal (in Normal
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// mode, not Application mode), which itself emulates xterm. Gnome Terminal
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// is emulated instead of xterm because it is probably more popular than xterm:
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// Ubuntu's default Ctrl-Alt-T shortcut opens Gnome Terminal, Gnome Terminal
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// supports modern fonts, etc. It seems best to emulate the terminal that most
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// Android developers use because they'll fix apps (the shell, etc.) to keep
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// working with that terminal's emulation.
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//
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// The point of this emulation is not to be perfect or to solve all issues with
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// console windows on Windows, but to be better than the original code which
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// just called read() (which called ReadFile(), which called ReadConsoleA())
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// which did not support Ctrl-C, tab completion, shell input line editing
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// keys, server echo, and more.
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//
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// This implementation reconfigures the console with SetConsoleMode(), then
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// calls ReadConsoleInput() to get raw input which it remaps to Unix
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// terminal-style sequences which is returned via unix_read() which is used
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// by the 'adb shell' command.
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//
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// Code organization:
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//
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// * stdin_raw_init() and stdin_raw_restore() reconfigure the console.
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// * unix_read() detects console windows (as opposed to pipes, files, etc.).
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// * _console_read() is the main code of the emulation.
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// Read an input record from the console; one that should be processed.
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static bool _get_interesting_input_record_uncached(const HANDLE console,
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INPUT_RECORD* const input_record) {
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for (;;) {
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DWORD read_count = 0;
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memset(input_record, 0, sizeof(*input_record));
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if (!ReadConsoleInputA(console, input_record, 1, &read_count)) {
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D("_get_interesting_input_record_uncached: ReadConsoleInputA() "
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"failure, error %ld\n", GetLastError());
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errno = EIO;
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return false;
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}
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if (read_count == 0) { // should be impossible
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fatal("ReadConsoleInputA returned 0");
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}
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if (read_count != 1) { // should be impossible
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fatal("ReadConsoleInputA did not return one input record");
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}
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if ((input_record->EventType == KEY_EVENT) &&
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(input_record->Event.KeyEvent.bKeyDown)) {
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if (input_record->Event.KeyEvent.wRepeatCount == 0) {
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fatal("ReadConsoleInputA returned a key event with zero repeat"
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" count");
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}
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// Got an interesting INPUT_RECORD, so return
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return true;
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}
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}
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}
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// Cached input record (in case _console_read() is passed a buffer that doesn't
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// have enough space to fit wRepeatCount number of key sequences). A non-zero
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// wRepeatCount indicates that a record is cached.
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static INPUT_RECORD _win32_input_record;
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// Get the next KEY_EVENT_RECORD that should be processed.
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static KEY_EVENT_RECORD* _get_key_event_record(const HANDLE console) {
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// If nothing cached, read directly from the console until we get an
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// interesting record.
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if (_win32_input_record.Event.KeyEvent.wRepeatCount == 0) {
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if (!_get_interesting_input_record_uncached(console,
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&_win32_input_record)) {
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// There was an error, so make sure wRepeatCount is zero because
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// that signifies no cached input record.
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_win32_input_record.Event.KeyEvent.wRepeatCount = 0;
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return NULL;
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}
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}
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return &_win32_input_record.Event.KeyEvent;
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}
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static __inline__ bool _is_shift_pressed(const DWORD control_key_state) {
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return (control_key_state & SHIFT_PRESSED) != 0;
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}
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static __inline__ bool _is_ctrl_pressed(const DWORD control_key_state) {
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return (control_key_state & (LEFT_CTRL_PRESSED | RIGHT_CTRL_PRESSED)) != 0;
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}
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static __inline__ bool _is_alt_pressed(const DWORD control_key_state) {
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return (control_key_state & (LEFT_ALT_PRESSED | RIGHT_ALT_PRESSED)) != 0;
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}
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static __inline__ bool _is_numlock_on(const DWORD control_key_state) {
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return (control_key_state & NUMLOCK_ON) != 0;
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}
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static __inline__ bool _is_capslock_on(const DWORD control_key_state) {
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return (control_key_state & CAPSLOCK_ON) != 0;
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}
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static __inline__ bool _is_enhanced_key(const DWORD control_key_state) {
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return (control_key_state & ENHANCED_KEY) != 0;
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}
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// Constants from MSDN for ToAscii().
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static const BYTE TOASCII_KEY_OFF = 0x00;
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static const BYTE TOASCII_KEY_DOWN = 0x80;
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static const BYTE TOASCII_KEY_TOGGLED_ON = 0x01; // for CapsLock
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// Given a key event, ignore a modifier key and return the character that was
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// entered without the modifier. Writes to *ch and returns the number of bytes
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// written.
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static size_t _get_char_ignoring_modifier(char* const ch,
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const KEY_EVENT_RECORD* const key_event, const DWORD control_key_state,
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const WORD modifier) {
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// If there is no character from Windows, try ignoring the specified
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// modifier and look for a character. Note that if AltGr is being used,
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// there will be a character from Windows.
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if (key_event->uChar.AsciiChar == '\0') {
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// Note that we read the control key state from the passed in argument
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// instead of from key_event since the argument has been normalized.
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if (((modifier == VK_SHIFT) &&
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_is_shift_pressed(control_key_state)) ||
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((modifier == VK_CONTROL) &&
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_is_ctrl_pressed(control_key_state)) ||
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((modifier == VK_MENU) && _is_alt_pressed(control_key_state))) {
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BYTE key_state[256] = {0};
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key_state[VK_SHIFT] = _is_shift_pressed(control_key_state) ?
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TOASCII_KEY_DOWN : TOASCII_KEY_OFF;
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key_state[VK_CONTROL] = _is_ctrl_pressed(control_key_state) ?
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TOASCII_KEY_DOWN : TOASCII_KEY_OFF;
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key_state[VK_MENU] = _is_alt_pressed(control_key_state) ?
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TOASCII_KEY_DOWN : TOASCII_KEY_OFF;
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key_state[VK_CAPITAL] = _is_capslock_on(control_key_state) ?
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TOASCII_KEY_TOGGLED_ON : TOASCII_KEY_OFF;
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// cause this modifier to be ignored
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key_state[modifier] = TOASCII_KEY_OFF;
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WORD translated = 0;
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if (ToAscii(key_event->wVirtualKeyCode,
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key_event->wVirtualScanCode, key_state, &translated, 0) == 1) {
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// Ignoring the modifier, we found a character.
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*ch = (CHAR)translated;
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return 1;
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}
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}
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}
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// Just use whatever Windows told us originally.
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*ch = key_event->uChar.AsciiChar;
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// If the character from Windows is NULL, return a size of zero.
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return (*ch == '\0') ? 0 : 1;
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}
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// If a Ctrl key is pressed, lookup the character, ignoring the Ctrl key,
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// but taking into account the shift key. This is because for a sequence like
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// Ctrl-Alt-0, we want to find the character '0' and for Ctrl-Alt-Shift-0,
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// we want to find the character ')'.
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//
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// Note that Windows doesn't seem to pass bKeyDown for Ctrl-Shift-NoAlt-0
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// because it is the default key-sequence to switch the input language.
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// This is configurable in the Region and Language control panel.
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static __inline__ size_t _get_non_control_char(char* const ch,
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const KEY_EVENT_RECORD* const key_event, const DWORD control_key_state) {
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return _get_char_ignoring_modifier(ch, key_event, control_key_state,
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VK_CONTROL);
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}
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// Get without Alt.
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static __inline__ size_t _get_non_alt_char(char* const ch,
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const KEY_EVENT_RECORD* const key_event, const DWORD control_key_state) {
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return _get_char_ignoring_modifier(ch, key_event, control_key_state,
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VK_MENU);
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}
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// Ignore the control key, find the character from Windows, and apply any
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// Control key mappings (for example, Ctrl-2 is a NULL character). Writes to
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// *pch and returns number of bytes written.
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static size_t _get_control_character(char* const pch,
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const KEY_EVENT_RECORD* const key_event, const DWORD control_key_state) {
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const size_t len = _get_non_control_char(pch, key_event,
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control_key_state);
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if ((len == 1) && _is_ctrl_pressed(control_key_state)) {
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char ch = *pch;
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switch (ch) {
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case '2':
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case '@':
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case '`':
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ch = '\0';
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break;
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case '3':
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case '[':
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case '{':
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ch = '\x1b';
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break;
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case '4':
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case '\\':
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case '|':
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ch = '\x1c';
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break;
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case '5':
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case ']':
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case '}':
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ch = '\x1d';
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break;
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case '6':
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case '^':
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case '~':
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ch = '\x1e';
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break;
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case '7':
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case '-':
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case '_':
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ch = '\x1f';
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break;
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case '8':
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ch = '\x7f';
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break;
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case '/':
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if (!_is_alt_pressed(control_key_state)) {
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ch = '\x1f';
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}
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break;
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case '?':
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if (!_is_alt_pressed(control_key_state)) {
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ch = '\x7f';
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}
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break;
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}
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*pch = ch;
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}
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return len;
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}
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static DWORD _normalize_altgr_control_key_state(
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const KEY_EVENT_RECORD* const key_event) {
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DWORD control_key_state = key_event->dwControlKeyState;
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// If we're in an AltGr situation where the AltGr key is down (depending on
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// the keyboard layout, that might be the physical right alt key which
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// produces a control_key_state where Right-Alt and Left-Ctrl are down) or
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// AltGr-equivalent keys are down (any Ctrl key + any Alt key), and we have
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// a character (which indicates that there was an AltGr mapping), then act
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// as if alt and control are not really down for the purposes of modifiers.
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// This makes it so that if the user with, say, a German keyboard layout
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// presses AltGr-] (which we see as Right-Alt + Left-Ctrl + key), we just
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// output the key and we don't see the Alt and Ctrl keys.
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if (_is_ctrl_pressed(control_key_state) &&
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_is_alt_pressed(control_key_state)
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&& (key_event->uChar.AsciiChar != '\0')) {
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// Try to remove as few bits as possible to improve our chances of
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// detecting combinations like Left-Alt + AltGr, Right-Ctrl + AltGr, or
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// Left-Alt + Right-Ctrl + AltGr.
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if ((control_key_state & RIGHT_ALT_PRESSED) != 0) {
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// Remove Right-Alt.
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control_key_state &= ~RIGHT_ALT_PRESSED;
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// If uChar is set, a Ctrl key is pressed, and Right-Alt is
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// pressed, Left-Ctrl is almost always set, except if the user
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// presses Right-Ctrl, then AltGr (in that specific order) for
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// whatever reason. At any rate, make sure the bit is not set.
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control_key_state &= ~LEFT_CTRL_PRESSED;
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} else if ((control_key_state & LEFT_ALT_PRESSED) != 0) {
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// Remove Left-Alt.
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control_key_state &= ~LEFT_ALT_PRESSED;
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// Whichever Ctrl key is down, remove it from the state. We only
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// remove one key, to improve our chances of detecting the
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// corner-case of Left-Ctrl + Left-Alt + Right-Ctrl.
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if ((control_key_state & LEFT_CTRL_PRESSED) != 0) {
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// Remove Left-Ctrl.
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control_key_state &= ~LEFT_CTRL_PRESSED;
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} else if ((control_key_state & RIGHT_CTRL_PRESSED) != 0) {
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// Remove Right-Ctrl.
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control_key_state &= ~RIGHT_CTRL_PRESSED;
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}
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}
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// Note that this logic isn't 100% perfect because Windows doesn't
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// allow us to detect all combinations because a physical AltGr key
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// press shows up as two bits, plus some combinations are ambiguous
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// about what is actually physically pressed.
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}
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return control_key_state;
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}
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// If NumLock is on and Shift is pressed, SHIFT_PRESSED is not set in
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// dwControlKeyState for the following keypad keys: period, 0-9. If we detect
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// this scenario, set the SHIFT_PRESSED bit so we can add modifiers
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// appropriately.
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static DWORD _normalize_keypad_control_key_state(const WORD vk,
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const DWORD control_key_state) {
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if (!_is_numlock_on(control_key_state)) {
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return control_key_state;
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}
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if (!_is_enhanced_key(control_key_state)) {
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switch (vk) {
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case VK_INSERT: // 0
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case VK_DELETE: // .
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case VK_END: // 1
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case VK_DOWN: // 2
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case VK_NEXT: // 3
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case VK_LEFT: // 4
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case VK_CLEAR: // 5
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case VK_RIGHT: // 6
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case VK_HOME: // 7
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case VK_UP: // 8
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case VK_PRIOR: // 9
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return control_key_state | SHIFT_PRESSED;
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}
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}
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return control_key_state;
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}
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static const char* _get_keypad_sequence(const DWORD control_key_state,
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const char* const normal, const char* const shifted) {
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if (_is_shift_pressed(control_key_state)) {
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// Shift is pressed and NumLock is off
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return shifted;
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} else {
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// Shift is not pressed and NumLock is off, or,
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// Shift is pressed and NumLock is on, in which case we want the
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// NumLock and Shift to neutralize each other, thus, we want the normal
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// sequence.
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return normal;
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}
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// If Shift is not pressed and NumLock is on, a different virtual key code
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// is returned by Windows, which can be taken care of by a different case
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// statement in _console_read().
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}
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// Write sequence to buf and return the number of bytes written.
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static size_t _get_modifier_sequence(char* const buf, const WORD vk,
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DWORD control_key_state, const char* const normal) {
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// Copy the base sequence into buf.
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const size_t len = strlen(normal);
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memcpy(buf, normal, len);
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int code = 0;
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control_key_state = _normalize_keypad_control_key_state(vk,
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control_key_state);
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if (_is_shift_pressed(control_key_state)) {
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code |= 0x1;
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}
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if (_is_alt_pressed(control_key_state)) { // any alt key pressed
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code |= 0x2;
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}
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if (_is_ctrl_pressed(control_key_state)) { // any control key pressed
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code |= 0x4;
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}
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// If some modifier was held down, then we need to insert the modifier code
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if (code != 0) {
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if (len == 0) {
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// Should be impossible because caller should pass a string of
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// non-zero length.
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return 0;
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}
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size_t index = len - 1;
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const char lastChar = buf[index];
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if (lastChar != '~') {
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buf[index++] = '1';
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}
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buf[index++] = ';'; // modifier separator
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// 2 = shift, 3 = alt, 4 = shift & alt, 5 = control,
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// 6 = shift & control, 7 = alt & control, 8 = shift & alt & control
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buf[index++] = '1' + code;
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buf[index++] = lastChar; // move ~ (or other last char) to the end
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return index;
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}
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return len;
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}
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// Write sequence to buf and return the number of bytes written.
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static size_t _get_modifier_keypad_sequence(char* const buf, const WORD vk,
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const DWORD control_key_state, const char* const normal,
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const char shifted) {
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if (_is_shift_pressed(control_key_state)) {
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// Shift is pressed and NumLock is off
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if (shifted != '\0') {
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buf[0] = shifted;
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return sizeof(buf[0]);
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} else {
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return 0;
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}
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} else {
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// Shift is not pressed and NumLock is off, or,
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// Shift is pressed and NumLock is on, in which case we want the
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// NumLock and Shift to neutralize each other, thus, we want the normal
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// sequence.
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return _get_modifier_sequence(buf, vk, control_key_state, normal);
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}
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// If Shift is not pressed and NumLock is on, a different virtual key code
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// is returned by Windows, which can be taken care of by a different case
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// statement in _console_read().
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}
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|
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// The decimal key on the keypad produces a '.' for U.S. English and a ',' for
|
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// Standard German. Figure this out at runtime so we know what to output for
|
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// Shift-VK_DELETE.
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static char _get_decimal_char() {
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return (char)MapVirtualKeyA(VK_DECIMAL, MAPVK_VK_TO_CHAR);
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}
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|
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// Prefix the len bytes in buf with the escape character, and then return the
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// new buffer length.
|
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size_t _escape_prefix(char* const buf, const size_t len) {
|
|
// If nothing to prefix, don't do anything. We might be called with
|
|
// len == 0, if alt was held down with a dead key which produced nothing.
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|
if (len == 0) {
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return 0;
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}
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|
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memmove(&buf[1], buf, len);
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buf[0] = '\x1b';
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return len + 1;
|
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}
|
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|
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// Writes to buffer buf (of length len), returning number of bytes written or
|
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// -1 on error. Never returns zero because Win32 consoles are never 'closed'
|
|
// (as far as I can tell).
|
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static int _console_read(const HANDLE console, void* buf, size_t len) {
|
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for (;;) {
|
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KEY_EVENT_RECORD* const key_event = _get_key_event_record(console);
|
|
if (key_event == NULL) {
|
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return -1;
|
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}
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|
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const WORD vk = key_event->wVirtualKeyCode;
|
|
const CHAR ch = key_event->uChar.AsciiChar;
|
|
const DWORD control_key_state = _normalize_altgr_control_key_state(
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key_event);
|
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|
|
// The following emulation code should write the output sequence to
|
|
// either seqstr or to seqbuf and seqbuflen.
|
|
const char* seqstr = NULL; // NULL terminated C-string
|
|
// Enough space for max sequence string below, plus modifiers and/or
|
|
// escape prefix.
|
|
char seqbuf[16];
|
|
size_t seqbuflen = 0; // Space used in seqbuf.
|
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|
|
#define MATCH(vk, normal) \
|
|
case (vk): \
|
|
{ \
|
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seqstr = (normal); \
|
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} \
|
|
break;
|
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|
|
// Modifier keys should affect the output sequence.
|
|
#define MATCH_MODIFIER(vk, normal) \
|
|
case (vk): \
|
|
{ \
|
|
seqbuflen = _get_modifier_sequence(seqbuf, (vk), \
|
|
control_key_state, (normal)); \
|
|
} \
|
|
break;
|
|
|
|
// The shift key should affect the output sequence.
|
|
#define MATCH_KEYPAD(vk, normal, shifted) \
|
|
case (vk): \
|
|
{ \
|
|
seqstr = _get_keypad_sequence(control_key_state, (normal), \
|
|
(shifted)); \
|
|
} \
|
|
break;
|
|
|
|
// The shift key and other modifier keys should affect the output
|
|
// sequence.
|
|
#define MATCH_MODIFIER_KEYPAD(vk, normal, shifted) \
|
|
case (vk): \
|
|
{ \
|
|
seqbuflen = _get_modifier_keypad_sequence(seqbuf, (vk), \
|
|
control_key_state, (normal), (shifted)); \
|
|
} \
|
|
break;
|
|
|
|
#define ESC "\x1b"
|
|
#define CSI ESC "["
|
|
#define SS3 ESC "O"
|
|
|
|
// Only support normal mode, not application mode.
|
|
|
|
// Enhanced keys:
|
|
// * 6-pack: insert, delete, home, end, page up, page down
|
|
// * cursor keys: up, down, right, left
|
|
// * keypad: divide, enter
|
|
// * Undocumented: VK_PAUSE (Ctrl-NumLock), VK_SNAPSHOT,
|
|
// VK_CANCEL (Ctrl-Pause/Break), VK_NUMLOCK
|
|
if (_is_enhanced_key(control_key_state)) {
|
|
switch (vk) {
|
|
case VK_RETURN: // Enter key on keypad
|
|
if (_is_ctrl_pressed(control_key_state)) {
|
|
seqstr = "\n";
|
|
} else {
|
|
seqstr = "\r";
|
|
}
|
|
break;
|
|
|
|
MATCH_MODIFIER(VK_PRIOR, CSI "5~"); // Page Up
|
|
MATCH_MODIFIER(VK_NEXT, CSI "6~"); // Page Down
|
|
|
|
// gnome-terminal currently sends SS3 "F" and SS3 "H", but that
|
|
// will be fixed soon to match xterm which sends CSI "F" and
|
|
// CSI "H". https://bugzilla.redhat.com/show_bug.cgi?id=1119764
|
|
MATCH(VK_END, CSI "F");
|
|
MATCH(VK_HOME, CSI "H");
|
|
|
|
MATCH_MODIFIER(VK_LEFT, CSI "D");
|
|
MATCH_MODIFIER(VK_UP, CSI "A");
|
|
MATCH_MODIFIER(VK_RIGHT, CSI "C");
|
|
MATCH_MODIFIER(VK_DOWN, CSI "B");
|
|
|
|
MATCH_MODIFIER(VK_INSERT, CSI "2~");
|
|
MATCH_MODIFIER(VK_DELETE, CSI "3~");
|
|
|
|
MATCH(VK_DIVIDE, "/");
|
|
}
|
|
} else { // Non-enhanced keys:
|
|
switch (vk) {
|
|
case VK_BACK: // backspace
|
|
if (_is_alt_pressed(control_key_state)) {
|
|
seqstr = ESC "\x7f";
|
|
} else {
|
|
seqstr = "\x7f";
|
|
}
|
|
break;
|
|
|
|
case VK_TAB:
|
|
if (_is_shift_pressed(control_key_state)) {
|
|
seqstr = CSI "Z";
|
|
} else {
|
|
seqstr = "\t";
|
|
}
|
|
break;
|
|
|
|
// Number 5 key in keypad when NumLock is off, or if NumLock is
|
|
// on and Shift is down.
|
|
MATCH_KEYPAD(VK_CLEAR, CSI "E", "5");
|
|
|
|
case VK_RETURN: // Enter key on main keyboard
|
|
if (_is_alt_pressed(control_key_state)) {
|
|
seqstr = ESC "\n";
|
|
} else if (_is_ctrl_pressed(control_key_state)) {
|
|
seqstr = "\n";
|
|
} else {
|
|
seqstr = "\r";
|
|
}
|
|
break;
|
|
|
|
// VK_ESCAPE: Don't do any special handling. The OS uses many
|
|
// of the sequences with Escape and many of the remaining
|
|
// sequences don't produce bKeyDown messages, only !bKeyDown
|
|
// for whatever reason.
|
|
|
|
case VK_SPACE:
|
|
if (_is_alt_pressed(control_key_state)) {
|
|
seqstr = ESC " ";
|
|
} else if (_is_ctrl_pressed(control_key_state)) {
|
|
seqbuf[0] = '\0'; // NULL char
|
|
seqbuflen = 1;
|
|
} else {
|
|
seqstr = " ";
|
|
}
|
|
break;
|
|
|
|
MATCH_MODIFIER_KEYPAD(VK_PRIOR, CSI "5~", '9'); // Page Up
|
|
MATCH_MODIFIER_KEYPAD(VK_NEXT, CSI "6~", '3'); // Page Down
|
|
|
|
MATCH_KEYPAD(VK_END, CSI "4~", "1");
|
|
MATCH_KEYPAD(VK_HOME, CSI "1~", "7");
|
|
|
|
MATCH_MODIFIER_KEYPAD(VK_LEFT, CSI "D", '4');
|
|
MATCH_MODIFIER_KEYPAD(VK_UP, CSI "A", '8');
|
|
MATCH_MODIFIER_KEYPAD(VK_RIGHT, CSI "C", '6');
|
|
MATCH_MODIFIER_KEYPAD(VK_DOWN, CSI "B", '2');
|
|
|
|
MATCH_MODIFIER_KEYPAD(VK_INSERT, CSI "2~", '0');
|
|
MATCH_MODIFIER_KEYPAD(VK_DELETE, CSI "3~",
|
|
_get_decimal_char());
|
|
|
|
case 0x30: // 0
|
|
case 0x31: // 1
|
|
case 0x39: // 9
|
|
case VK_OEM_1: // ;:
|
|
case VK_OEM_PLUS: // =+
|
|
case VK_OEM_COMMA: // ,<
|
|
case VK_OEM_PERIOD: // .>
|
|
case VK_OEM_7: // '"
|
|
case VK_OEM_102: // depends on keyboard, could be <> or \|
|
|
case VK_OEM_2: // /?
|
|
case VK_OEM_3: // `~
|
|
case VK_OEM_4: // [{
|
|
case VK_OEM_5: // \|
|
|
case VK_OEM_6: // ]}
|
|
{
|
|
seqbuflen = _get_control_character(seqbuf, key_event,
|
|
control_key_state);
|
|
|
|
if (_is_alt_pressed(control_key_state)) {
|
|
seqbuflen = _escape_prefix(seqbuf, seqbuflen);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 0x32: // 2
|
|
case 0x36: // 6
|
|
case VK_OEM_MINUS: // -_
|
|
{
|
|
seqbuflen = _get_control_character(seqbuf, key_event,
|
|
control_key_state);
|
|
|
|
// If Alt is pressed and it isn't Ctrl-Alt-ShiftUp, then
|
|
// prefix with escape.
|
|
if (_is_alt_pressed(control_key_state) &&
|
|
!(_is_ctrl_pressed(control_key_state) &&
|
|
!_is_shift_pressed(control_key_state))) {
|
|
seqbuflen = _escape_prefix(seqbuf, seqbuflen);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 0x33: // 3
|
|
case 0x34: // 4
|
|
case 0x35: // 5
|
|
case 0x37: // 7
|
|
case 0x38: // 8
|
|
{
|
|
seqbuflen = _get_control_character(seqbuf, key_event,
|
|
control_key_state);
|
|
|
|
// If Alt is pressed and it isn't Ctrl-Alt-ShiftUp, then
|
|
// prefix with escape.
|
|
if (_is_alt_pressed(control_key_state) &&
|
|
!(_is_ctrl_pressed(control_key_state) &&
|
|
!_is_shift_pressed(control_key_state))) {
|
|
seqbuflen = _escape_prefix(seqbuf, seqbuflen);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 0x41: // a
|
|
case 0x42: // b
|
|
case 0x43: // c
|
|
case 0x44: // d
|
|
case 0x45: // e
|
|
case 0x46: // f
|
|
case 0x47: // g
|
|
case 0x48: // h
|
|
case 0x49: // i
|
|
case 0x4a: // j
|
|
case 0x4b: // k
|
|
case 0x4c: // l
|
|
case 0x4d: // m
|
|
case 0x4e: // n
|
|
case 0x4f: // o
|
|
case 0x50: // p
|
|
case 0x51: // q
|
|
case 0x52: // r
|
|
case 0x53: // s
|
|
case 0x54: // t
|
|
case 0x55: // u
|
|
case 0x56: // v
|
|
case 0x57: // w
|
|
case 0x58: // x
|
|
case 0x59: // y
|
|
case 0x5a: // z
|
|
{
|
|
seqbuflen = _get_non_alt_char(seqbuf, key_event,
|
|
control_key_state);
|
|
|
|
// If Alt is pressed, then prefix with escape.
|
|
if (_is_alt_pressed(control_key_state)) {
|
|
seqbuflen = _escape_prefix(seqbuf, seqbuflen);
|
|
}
|
|
}
|
|
break;
|
|
|
|
// These virtual key codes are generated by the keys on the
|
|
// keypad *when NumLock is on* and *Shift is up*.
|
|
MATCH(VK_NUMPAD0, "0");
|
|
MATCH(VK_NUMPAD1, "1");
|
|
MATCH(VK_NUMPAD2, "2");
|
|
MATCH(VK_NUMPAD3, "3");
|
|
MATCH(VK_NUMPAD4, "4");
|
|
MATCH(VK_NUMPAD5, "5");
|
|
MATCH(VK_NUMPAD6, "6");
|
|
MATCH(VK_NUMPAD7, "7");
|
|
MATCH(VK_NUMPAD8, "8");
|
|
MATCH(VK_NUMPAD9, "9");
|
|
|
|
MATCH(VK_MULTIPLY, "*");
|
|
MATCH(VK_ADD, "+");
|
|
MATCH(VK_SUBTRACT, "-");
|
|
// VK_DECIMAL is generated by the . key on the keypad *when
|
|
// NumLock is on* and *Shift is up* and the sequence is not
|
|
// Ctrl-Alt-NoShift-. (which causes Ctrl-Alt-Del and the
|
|
// Windows Security screen to come up).
|
|
case VK_DECIMAL:
|
|
// U.S. English uses '.', Germany German uses ','.
|
|
seqbuflen = _get_non_control_char(seqbuf, key_event,
|
|
control_key_state);
|
|
break;
|
|
|
|
MATCH_MODIFIER(VK_F1, SS3 "P");
|
|
MATCH_MODIFIER(VK_F2, SS3 "Q");
|
|
MATCH_MODIFIER(VK_F3, SS3 "R");
|
|
MATCH_MODIFIER(VK_F4, SS3 "S");
|
|
MATCH_MODIFIER(VK_F5, CSI "15~");
|
|
MATCH_MODIFIER(VK_F6, CSI "17~");
|
|
MATCH_MODIFIER(VK_F7, CSI "18~");
|
|
MATCH_MODIFIER(VK_F8, CSI "19~");
|
|
MATCH_MODIFIER(VK_F9, CSI "20~");
|
|
MATCH_MODIFIER(VK_F10, CSI "21~");
|
|
MATCH_MODIFIER(VK_F11, CSI "23~");
|
|
MATCH_MODIFIER(VK_F12, CSI "24~");
|
|
|
|
MATCH_MODIFIER(VK_F13, CSI "25~");
|
|
MATCH_MODIFIER(VK_F14, CSI "26~");
|
|
MATCH_MODIFIER(VK_F15, CSI "28~");
|
|
MATCH_MODIFIER(VK_F16, CSI "29~");
|
|
MATCH_MODIFIER(VK_F17, CSI "31~");
|
|
MATCH_MODIFIER(VK_F18, CSI "32~");
|
|
MATCH_MODIFIER(VK_F19, CSI "33~");
|
|
MATCH_MODIFIER(VK_F20, CSI "34~");
|
|
|
|
// MATCH_MODIFIER(VK_F21, ???);
|
|
// MATCH_MODIFIER(VK_F22, ???);
|
|
// MATCH_MODIFIER(VK_F23, ???);
|
|
// MATCH_MODIFIER(VK_F24, ???);
|
|
}
|
|
}
|
|
|
|
#undef MATCH
|
|
#undef MATCH_MODIFIER
|
|
#undef MATCH_KEYPAD
|
|
#undef MATCH_MODIFIER_KEYPAD
|
|
#undef ESC
|
|
#undef CSI
|
|
#undef SS3
|
|
|
|
const char* out;
|
|
size_t outlen;
|
|
|
|
// Check for output in any of:
|
|
// * seqstr is set (and strlen can be used to determine the length).
|
|
// * seqbuf and seqbuflen are set
|
|
// Fallback to ch from Windows.
|
|
if (seqstr != NULL) {
|
|
out = seqstr;
|
|
outlen = strlen(seqstr);
|
|
} else if (seqbuflen > 0) {
|
|
out = seqbuf;
|
|
outlen = seqbuflen;
|
|
} else if (ch != '\0') {
|
|
// Use whatever Windows told us it is.
|
|
seqbuf[0] = ch;
|
|
seqbuflen = 1;
|
|
out = seqbuf;
|
|
outlen = seqbuflen;
|
|
} else {
|
|
// No special handling for the virtual key code and Windows isn't
|
|
// telling us a character code, then we don't know how to translate
|
|
// the key press.
|
|
//
|
|
// Consume the input and 'continue' to cause us to get a new key
|
|
// event.
|
|
D("_console_read: unknown virtual key code: %d, enhanced: %s\n",
|
|
vk, _is_enhanced_key(control_key_state) ? "true" : "false");
|
|
key_event->wRepeatCount = 0;
|
|
continue;
|
|
}
|
|
|
|
int bytesRead = 0;
|
|
|
|
// put output wRepeatCount times into buf/len
|
|
while (key_event->wRepeatCount > 0) {
|
|
if (len >= outlen) {
|
|
// Write to buf/len
|
|
memcpy(buf, out, outlen);
|
|
buf = (void*)((char*)buf + outlen);
|
|
len -= outlen;
|
|
bytesRead += outlen;
|
|
|
|
// consume the input
|
|
--key_event->wRepeatCount;
|
|
} else {
|
|
// Not enough space, so just leave it in _win32_input_record
|
|
// for a subsequent retrieval.
|
|
if (bytesRead == 0) {
|
|
// We didn't write anything because there wasn't enough
|
|
// space to even write one sequence. This should never
|
|
// happen if the caller uses sensible buffer sizes
|
|
// (i.e. >= maximum sequence length which is probably a
|
|
// few bytes long).
|
|
D("_console_read: no buffer space to write one sequence; "
|
|
"buffer: %ld, sequence: %ld\n", (long)len,
|
|
(long)outlen);
|
|
errno = ENOMEM;
|
|
return -1;
|
|
} else {
|
|
// Stop trying to write to buf/len, just return whatever
|
|
// we wrote so far.
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
return bytesRead;
|
|
}
|
|
}
|
|
|
|
static DWORD _old_console_mode; // previous GetConsoleMode() result
|
|
static HANDLE _console_handle; // when set, console mode should be restored
|
|
|
|
void stdin_raw_init(const int fd) {
|
|
if (STDIN_FILENO == fd) {
|
|
const HANDLE in = GetStdHandle(STD_INPUT_HANDLE);
|
|
if ((in == INVALID_HANDLE_VALUE) || (in == NULL)) {
|
|
return;
|
|
}
|
|
|
|
if (GetFileType(in) != FILE_TYPE_CHAR) {
|
|
// stdin might be a file or pipe.
|
|
return;
|
|
}
|
|
|
|
if (!GetConsoleMode(in, &_old_console_mode)) {
|
|
// If GetConsoleMode() fails, stdin is probably is not a console.
|
|
return;
|
|
}
|
|
|
|
// Disable ENABLE_PROCESSED_INPUT so that Ctrl-C is read instead of
|
|
// calling the process Ctrl-C routine (configured by
|
|
// SetConsoleCtrlHandler()).
|
|
// Disable ENABLE_LINE_INPUT so that input is immediately sent.
|
|
// Disable ENABLE_ECHO_INPUT to disable local echo. Disabling this
|
|
// flag also seems necessary to have proper line-ending processing.
|
|
if (!SetConsoleMode(in, _old_console_mode & ~(ENABLE_PROCESSED_INPUT |
|
|
ENABLE_LINE_INPUT | ENABLE_ECHO_INPUT))) {
|
|
// This really should not fail.
|
|
D("stdin_raw_init: SetConsoleMode() failure, error %ld\n",
|
|
GetLastError());
|
|
}
|
|
|
|
// Once this is set, it means that stdin has been configured for
|
|
// reading from and that the old console mode should be restored later.
|
|
_console_handle = in;
|
|
|
|
// Note that we don't need to configure C Runtime line-ending
|
|
// translation because _console_read() does not call the C Runtime to
|
|
// read from the console.
|
|
}
|
|
}
|
|
|
|
void stdin_raw_restore(const int fd) {
|
|
if (STDIN_FILENO == fd) {
|
|
if (_console_handle != NULL) {
|
|
const HANDLE in = _console_handle;
|
|
_console_handle = NULL; // clear state
|
|
|
|
if (!SetConsoleMode(in, _old_console_mode)) {
|
|
// This really should not fail.
|
|
D("stdin_raw_restore: SetConsoleMode() failure, error %ld\n",
|
|
GetLastError());
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Called by 'adb shell' command to read from stdin.
|
|
int unix_read(int fd, void* buf, size_t len) {
|
|
if ((fd == STDIN_FILENO) && (_console_handle != NULL)) {
|
|
// If it is a request to read from stdin, and stdin_raw_init() has been
|
|
// called, and it successfully configured the console, then read from
|
|
// the console using Win32 console APIs and partially emulate a unix
|
|
// terminal.
|
|
return _console_read(_console_handle, buf, len);
|
|
} else {
|
|
// Just call into C Runtime which can read from pipes/files and which
|
|
// can do LF/CR translation.
|
|
#undef read
|
|
return read(fd, buf, len);
|
|
}
|
|
}
|