| /* |
| * 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 |
| |
| #if __ANDROID_API__ >= 21 |
| /** 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 |
| #endif |
| |
| #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* __path, mode_t __mode); |
| /** See creat(). */ |
| int creat64(const char* __path, mode_t __mode) __INTRODUCED_IN(21); |
| |
| /** |
| * [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* __path, int __flags, ...); |
| /** See openat(). */ |
| int openat64(int __dir_fd, const char* __path, int __flags, ...) __INTRODUCED_IN(21); |
| |
| /** |
| * [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* __path, int __flags, ...); |
| /** See open(). */ |
| int open64(const char* __path, int __flags, ...) __INTRODUCED_IN(21); |
| |
| /** |
| * [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. |
| * |
| * Available since API level 21. |
| */ |
| ssize_t splice(int __in_fd, off64_t* __in_offset, int __out_fd, off64_t* __out_offset, size_t __length, unsigned int __flags) __INTRODUCED_IN(21); |
| |
| /** |
| * [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. |
| * |
| * Available since API level 21. |
| */ |
| ssize_t tee(int __in_fd, int __out_fd, size_t __length, unsigned int __flags) __INTRODUCED_IN(21); |
| |
| /** |
| * [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. |
| * |
| * Available since API level 21. |
| */ |
| ssize_t vmsplice(int __fd, const struct iovec* __iov, size_t __count, unsigned int __flags) __INTRODUCED_IN(21); |
| |
| /** |
| * [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. |
| * |
| * Available since API level 21. |
| */ |
| int fallocate(int __fd, int __mode, off_t __offset, off_t __length) __RENAME_IF_FILE_OFFSET64(fallocate64) __INTRODUCED_IN(21); |
| /** See fallocate(). */ |
| int fallocate64(int __fd, int __mode, off64_t __offset, off64_t __length) __INTRODUCED_IN(21); |
| |
| /** |
| * [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. |
| * |
| * Available since API level 21. |
| */ |
| int posix_fadvise(int __fd, off_t __offset, off_t __length, int __advice) __RENAME_IF_FILE_OFFSET64(posix_fadvise64) __INTRODUCED_IN(21); |
| /** See posix_fadvise(). */ |
| int posix_fadvise64(int __fd, off64_t __offset, off64_t __length, int __advice) __INTRODUCED_IN(21); |
| |
| /** |
| * [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. |
| * |
| * Available since API level 21. |
| */ |
| int posix_fallocate(int __fd, off_t __offset, off_t __length) __RENAME_IF_FILE_OFFSET64(posix_fallocate64) __INTRODUCED_IN(21); |
| /** See posix_fallocate(). */ |
| int posix_fallocate64(int __fd, off64_t __offset, off64_t __length) __INTRODUCED_IN(21); |
| |
| #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 |