655e430b28
The NDK no longer supports API levels earlier than 21. This *doesn't* include <ctype.h> because I have a separate change rewriting that (that's blocked on the upcoming libc++ update). Test: treehugger Change-Id: I53e915f27011dfc0513e0c78d8799377e183ceca
240 lines
7.6 KiB
C
240 lines
7.6 KiB
C
/*
|
|
* Copyright (C) 2008 The Android Open Source Project
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* * Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* * Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
|
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
|
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
|
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
|
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#pragma once
|
|
#define _FCNTL_H
|
|
|
|
/**
|
|
* @file fcntl.h
|
|
* @brief File control operations.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
#include <sys/types.h>
|
|
#include <linux/fadvise.h>
|
|
#include <linux/falloc.h>
|
|
#include <linux/fcntl.h>
|
|
#include <linux/stat.h>
|
|
#include <linux/uio.h>
|
|
|
|
#include <bits/fcntl.h>
|
|
#include <bits/seek_constants.h>
|
|
|
|
#if defined(__USE_GNU) || defined(__USE_BSD)
|
|
#include <bits/lockf.h>
|
|
#endif
|
|
|
|
__BEGIN_DECLS
|
|
|
|
#if defined(__LP64__)
|
|
|
|
/* LP64 kernels don't have F_*64 defines because their flock is 64-bit. */
|
|
|
|
/** Flag for flock(). */
|
|
#define F_GETLK64 F_GETLK
|
|
/** Flag for flock(). */
|
|
#define F_SETLK64 F_SETLK
|
|
/** Flag for flock(). */
|
|
#define F_SETLKW64 F_SETLKW
|
|
|
|
#elif defined(__USE_FILE_OFFSET64)
|
|
|
|
/* For _FILE_OFFSET_BITS=64, redirect the constants to the off64_t variants. */
|
|
|
|
#undef F_GETLK
|
|
#undef F_SETLK
|
|
#undef F_SETLKW
|
|
|
|
/** Flag for flock(). */
|
|
#define F_GETLK F_GETLK64
|
|
/** Flag for flock(). */
|
|
#define F_SETLK F_SETLK64
|
|
/** Flag for flock(). */
|
|
#define F_SETLKW F_SETLKW64
|
|
|
|
#endif
|
|
|
|
/** Flag for open(). */
|
|
#define O_ASYNC FASYNC
|
|
/** Flag for open(). */
|
|
#define O_RSYNC O_SYNC
|
|
|
|
/** Flag for splice(). */
|
|
#define SPLICE_F_MOVE 1
|
|
/** Flag for splice(). */
|
|
#define SPLICE_F_NONBLOCK 2
|
|
/** Flag for splice(). */
|
|
#define SPLICE_F_MORE 4
|
|
/** Flag for splice(). */
|
|
#define SPLICE_F_GIFT 8
|
|
|
|
#if __ANDROID_API__ >= 26
|
|
/** Flag for sync_file_range(). */
|
|
#define SYNC_FILE_RANGE_WAIT_BEFORE 1
|
|
/** Flag for sync_file_range(). */
|
|
#define SYNC_FILE_RANGE_WRITE 2
|
|
/** Flag for sync_file_range(). */
|
|
#define SYNC_FILE_RANGE_WAIT_AFTER 4
|
|
#endif
|
|
|
|
/**
|
|
* [creat(2)](http://man7.org/linux/man-pages/man2/creat.2.html)
|
|
* creates a file.
|
|
*
|
|
* Returns a new file descriptor on success and returns -1 and sets `errno` on
|
|
* failure.
|
|
*/
|
|
int creat(const char* _Nonnull __path, mode_t __mode);
|
|
/** See creat(). */
|
|
int creat64(const char* _Nonnull __path, mode_t __mode);
|
|
|
|
/**
|
|
* [openat(2)](http://man7.org/linux/man-pages/man2/openat.2.html)
|
|
* opens (and possibly creates) a file.
|
|
*
|
|
* Returns a new file descriptor on success and returns -1 and sets `errno` on
|
|
* failure.
|
|
*/
|
|
int openat(int __dir_fd, const char* _Nonnull __path, int __flags, ...);
|
|
/** See openat(). */
|
|
int openat64(int __dir_fd, const char* _Nonnull __path, int __flags, ...);
|
|
|
|
/**
|
|
* [open(2)](http://man7.org/linux/man-pages/man2/open.2.html)
|
|
* opens (and possibly creates) a file.
|
|
*
|
|
* Returns a new file descriptor on success and returns -1 and sets `errno` on
|
|
* failure.
|
|
*/
|
|
int open(const char* _Nonnull __path, int __flags, ...);
|
|
/** See open(). */
|
|
int open64(const char* _Nonnull __path, int __flags, ...);
|
|
|
|
/**
|
|
* [splice(2)](http://man7.org/linux/man-pages/man2/splice.2.html)
|
|
* splices data to/from a pipe.
|
|
*
|
|
* Valid flags are `SPLICE_F_MOVE`, `SPLICE_F_NONBLOCK`, `SPLICE_F_MORE`, and
|
|
* `SPLICE_F_GIFT`.
|
|
*
|
|
* Returns the number of bytes spliced on success and returns -1 and sets
|
|
* `errno` on failure.
|
|
*/
|
|
ssize_t splice(int __in_fd, off64_t* __BIONIC_COMPLICATED_NULLNESS __in_offset, int __out_fd, off64_t* __BIONIC_COMPLICATED_NULLNESS __out_offset, size_t __length, unsigned int __flags);
|
|
|
|
/**
|
|
* [tee(2)](http://man7.org/linux/man-pages/man2/tee.2.html)
|
|
* duplicates data from one pipe to another.
|
|
*
|
|
* Valid flags are `SPLICE_F_MOVE`, `SPLICE_F_NONBLOCK`, `SPLICE_F_MORE`, and
|
|
* `SPLICE_F_GIFT`.
|
|
*
|
|
* Returns the number of bytes duplicated on success and returns -1 and sets
|
|
* `errno` on failure.
|
|
*/
|
|
ssize_t tee(int __in_fd, int __out_fd, size_t __length, unsigned int __flags);
|
|
|
|
/**
|
|
* [vmsplice(2)](http://man7.org/linux/man-pages/man2/vmsplice.2.html)
|
|
* splices data to/from a pipe.
|
|
*
|
|
* Valid flags are `SPLICE_F_MOVE`, `SPLICE_F_NONBLOCK`, `SPLICE_F_MORE`, and
|
|
* `SPLICE_F_GIFT`.
|
|
*
|
|
* Returns the number of bytes spliced on success and returns -1 and sets
|
|
* `errno` on failure.
|
|
*/
|
|
ssize_t vmsplice(int __fd, const struct iovec* _Nonnull __iov, size_t __count, unsigned int __flags);
|
|
|
|
/**
|
|
* [fallocate(2)](http://man7.org/linux/man-pages/man2/fallocate.2.html)
|
|
* is a Linux-specific extension of posix_fallocate().
|
|
*
|
|
* Valid flags are `FALLOC_FL_KEEP_SIZE`, `FALLOC_FL_PUNCH_HOLE`,
|
|
* `FALLOC_FL_NO_HIDE_STALE`, `FALLOC_FL_COLLAPSE_RANGE`,
|
|
* `FALLOC_FL_ZERO_RANGE`, `FALLOC_FL_INSERT_RANGE`, and
|
|
* `FALLOC_FL_UNSHARE_RANGE`.
|
|
*
|
|
* Returns 0 on success and returns -1 and sets `errno` on failure.
|
|
*/
|
|
int fallocate(int __fd, int __mode, off_t __offset, off_t __length) __RENAME_IF_FILE_OFFSET64(fallocate64);
|
|
/** See fallocate(). */
|
|
int fallocate64(int __fd, int __mode, off64_t __offset, off64_t __length);
|
|
|
|
/**
|
|
* [posix_fadvise(2)](http://man7.org/linux/man-pages/man2/posix_fadvise.2.html)
|
|
* declares an expected access pattern for file data.
|
|
*
|
|
* Valid flags are `POSIX_FADV_NORMAL`, `POSIX_FADV_RANDOM`,
|
|
* `POSIX_FADV_SEQUENTIAL`, `POSIX_FADV_WILLNEED`, `POSIX_FADV_DONTNEED`,
|
|
* and `POSIX_FADV_NOREUSE`.
|
|
*
|
|
* Returns 0 on success and returns an error number on failure.
|
|
*/
|
|
int posix_fadvise(int __fd, off_t __offset, off_t __length, int __advice) __RENAME_IF_FILE_OFFSET64(posix_fadvise64);
|
|
/** See posix_fadvise(). */
|
|
int posix_fadvise64(int __fd, off64_t __offset, off64_t __length, int __advice);
|
|
|
|
/**
|
|
* [posix_fallocate(2)](http://man7.org/linux/man-pages/man2/posix_fallocate.2.html)
|
|
* allocates file space.
|
|
*
|
|
* Returns 0 on success and returns an error number on failure.
|
|
*/
|
|
int posix_fallocate(int __fd, off_t __offset, off_t __length) __RENAME_IF_FILE_OFFSET64(posix_fallocate64);
|
|
/** See posix_fallocate(). */
|
|
int posix_fallocate64(int __fd, off64_t __offset, off64_t __length);
|
|
|
|
#if defined(__USE_GNU)
|
|
|
|
/**
|
|
* [readahead(2)](http://man7.org/linux/man-pages/man2/readahead.2.html)
|
|
* initiates readahead for the given file.
|
|
*
|
|
* Returns 0 on success and returns -1 and sets `errno` on failure.
|
|
*/
|
|
ssize_t readahead(int __fd, off64_t __offset, size_t __length);
|
|
|
|
/**
|
|
* [sync_file_range(2)](http://man7.org/linux/man-pages/man2/sync_file_range.2.html)
|
|
* syncs part of a file with disk.
|
|
*
|
|
* Valid flags are `SYNC_FILE_RANGE_WAIT_BEFORE`, `SYNC_FILE_RANGE_WRITE`, and
|
|
* `SYNC_FILE_RANGE_WAIT_AFTER`.
|
|
*
|
|
* Returns 0 on success and returns -1 and sets `errno` on failure.
|
|
*/
|
|
int sync_file_range(int __fd, off64_t __offset, off64_t __length, unsigned int __flags) __INTRODUCED_IN(26);
|
|
|
|
#endif
|
|
|
|
#if defined(__BIONIC_INCLUDE_FORTIFY_HEADERS)
|
|
#include <bits/fortify/fcntl.h>
|
|
#endif
|
|
|
|
__END_DECLS
|