platform_system_core/adb/adb_utils.h
Josh Gao 13ea01db45 adb/base: allow use of unique_fd inside adb.
adb implements its own file descriptor emulation layer on Windows,
which requires the use of adb_close instead of close throughout the
codebase. Add a template argument to unique_fd that allows for this.

Bug: http://b/28347842
Change-Id: I6397261f4973d49f2f8e04257bf67b348585bb63
2016-05-14 18:25:51 -07:00

101 lines
2.4 KiB
C++

/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef _ADB_UTILS_H_
#define _ADB_UTILS_H_
#include <string>
#include <android-base/macros.h>
#include <android-base/unique_fd.h>
void close_stdin();
bool getcwd(std::string* cwd);
bool directory_exists(const std::string& path);
// Like the regular basename and dirname, but thread-safe on all
// platforms and capable of correctly handling exotic Windows paths.
std::string adb_basename(const std::string& path);
std::string adb_dirname(const std::string& path);
bool mkdirs(const std::string& path);
std::string escape_arg(const std::string& s);
std::string dump_hex(const void* ptr, size_t byte_count);
std::string perror_str(const char* msg);
bool set_file_block_mode(int fd, bool block);
extern int adb_close(int fd);
// Given forward/reverse targets, returns true if they look sane. If an error is found, fills
// |error| and returns false.
// Currently this only checks "tcp:" targets. Additional checking could be added for other targets
// if needed.
bool forward_targets_are_valid(const std::string& source, const std::string& dest,
std::string* error);
// Helper to automatically close an FD when it goes out of scope.
struct AdbCloser {
static void Close(int fd) {
adb_close(fd);
}
};
using unique_fd = android::base::unique_fd_impl<AdbCloser>;
class ScopedFd {
public:
ScopedFd() {
}
~ScopedFd() {
Reset();
}
void Reset(int fd = -1) {
if (fd != fd_) {
if (valid()) {
adb_close(fd_);
}
fd_ = fd;
}
}
int Release() {
int temp = fd_;
fd_ = -1;
return temp;
}
bool valid() const {
return fd_ >= 0;
}
int fd() const {
return fd_;
}
private:
int fd_ = -1;
DISALLOW_COPY_AND_ASSIGN(ScopedFd);
};
#endif