platform/sysroot/usr/include/sys/uio.h - platform/prebuilts/ndk - Git at Google

 /*
  * 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

 /**
  * @file sys/uio.h
  * @brief Multi-buffer ("vector") I/O operations using `struct iovec`.
  */

 #include <sys/cdefs.h>
 #include <sys/types.h>
 #include <linux/uio.h>

 __BEGIN_DECLS

 /**
  * [readv(2)](http://man7.org/linux/man-pages/man2/readv.2.html) reads
  * from an fd into the `__count` buffers described by `__iov`.
  *
  * Returns the number of bytes read on success,
  * and returns -1 and sets `errno` on failure.
  */
 ssize_t readv(int __fd, const struct iovec* _Nonnull __iov, int __count);

 /**
  * [writev(2)](http://man7.org/linux/man-pages/man2/writev.2.html) writes
  * to an fd from the `__count` buffers described by `__iov`.
  *
  * Returns the number of bytes written on success,
  * and returns -1 and sets `errno` on failure.
  */
 ssize_t writev(int __fd, const struct iovec* _Nonnull __iov, int __count);

 #if defined(__USE_GNU)

 /**
  * [preadv(2)](http://man7.org/linux/man-pages/man2/preadv.2.html) reads
  * from an fd into the `__count` buffers described by `__iov`, starting at
  * offset `__offset` into the file.
  *
  * Returns the number of bytes read on success,
  * and returns -1 and sets `errno` on failure.
  *
  * Available since API level 24.
  */

 #if __ANDROID_API__ >= 24
 ssize_t preadv(int __fd, const struct iovec* _Nonnull __iov, int __count, off_t __offset) __RENAME_IF_FILE_OFFSET64(preadv64) __INTRODUCED_IN(24);

 /**
  * [pwritev(2)](http://man7.org/linux/man-pages/man2/pwritev.2.html) writes
  * to an fd from the `__count` buffers described by `__iov`, starting at offset
  * `__offset` into the file.
  *
  * Returns the number of bytes written on success,
  * and returns -1 and sets `errno` on failure.
  *
  * Available since API level 24.
  */
 ssize_t pwritev(int __fd, const struct iovec* _Nonnull __iov, int __count, off_t __offset) __RENAME_IF_FILE_OFFSET64(pwritev64) __INTRODUCED_IN(24);

 /**
  * Like preadv() but with a 64-bit offset even in a 32-bit process.
  *
  * Available since API level 24.
  */
 ssize_t preadv64(int __fd, const struct iovec* _Nonnull __iov, int __count, off64_t __offset) __INTRODUCED_IN(24);

 /**
  * Like pwritev() but with a 64-bit offset even in a 32-bit process.
  *
  * Available since API level 24.
  */
 ssize_t pwritev64(int __fd, const struct iovec* _Nonnull __iov, int __count, off64_t __offset) __INTRODUCED_IN(24);
 #endif /* __ANDROID_API__ >= 24 */


 /**
  * [preadv2(2)](http://man7.org/linux/man-pages/man2/preadv2.2.html) reads
  * from an fd into the `__count` buffers described by `__iov`, starting at
  * offset `__offset` into the file, with the given flags.
  *
  * Returns the number of bytes read on success,
  * and returns -1 and sets `errno` on failure.
  *
  * Available since API level 33.
  */

 #if __ANDROID_API__ >= 33
 ssize_t preadv2(int __fd, const struct iovec* _Nonnull __iov, int __count, off_t __offset, int __flags) __RENAME_IF_FILE_OFFSET64(preadv64v2) __INTRODUCED_IN(33);

 /**
  * [pwritev2(2)](http://man7.org/linux/man-pages/man2/pwritev2.2.html) writes
  * to an fd from the `__count` buffers described by `__iov`, starting at offset
  * `__offset` into the file, with the given flags.
  *
  * Returns the number of bytes written on success,
  * and returns -1 and sets `errno` on failure.
  *
  * Available since API level 33.
  */
 ssize_t pwritev2(int __fd, const struct iovec* _Nonnull __iov, int __count, off_t __offset, int __flags) __RENAME_IF_FILE_OFFSET64(pwritev64v2) __INTRODUCED_IN(33);

 /**
  * Like preadv2() but with a 64-bit offset even in a 32-bit process.
  *
  * Available since API level 33.
  */
 ssize_t preadv64v2(int __fd, const struct iovec* _Nonnull __iov, int __count, off64_t __offset, int __flags) __INTRODUCED_IN(33);

 /**
  * Like pwritev2() but with a 64-bit offset even in a 32-bit process.
  *
  * Available since API level 33.
  */
 ssize_t pwritev64v2(int __fd, const struct iovec* _Nonnull __iov, int __count, off64_t __offset, int __flags) __INTRODUCED_IN(33);
 #endif /* __ANDROID_API__ >= 33 */


 /**
  * [process_vm_readv(2)](http://man7.org/linux/man-pages/man2/process_vm_readv.2.html)
  * reads from the address space of another process.
  *
  * Returns the number of bytes read on success,
  * and returns -1 and sets `errno` on failure.
  *
  * Available since API level 23.
  */

 #if __ANDROID_API__ >= 23
 ssize_t process_vm_readv(pid_t __pid, const struct iovec* __BIONIC_COMPLICATED_NULLNESS __local_iov, unsigned long __local_iov_count, const struct iovec* __BIONIC_COMPLICATED_NULLNESS __remote_iov, unsigned long __remote_iov_count, unsigned long __flags) __INTRODUCED_IN(23);

 /**
  * [process_vm_writev(2)](http://man7.org/linux/man-pages/man2/process_vm_writev.2.html)
  * writes to the address space of another process.
  *
  * Returns the number of bytes read on success,
  * and returns -1 and sets `errno` on failure.
  *
  * Available since API level 23.
  */
 ssize_t process_vm_writev(pid_t __pid, const struct iovec* __BIONIC_COMPLICATED_NULLNESS __local_iov, unsigned long __local_iov_count, const struct iovec* __BIONIC_COMPLICATED_NULLNESS __remote_iov, unsigned long __remote_iov_count, unsigned long __flags) __INTRODUCED_IN(23);
 #endif /* __ANDROID_API__ >= 23 */


 #endif

 __END_DECLS
	/*
	* 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

	/**
	* @file sys/uio.h
	* @brief Multi-buffer ("vector") I/O operations using `struct iovec`.
	*/

	#include <sys/cdefs.h>
	#include <sys/types.h>
	#include <linux/uio.h>

	__BEGIN_DECLS

	/**
	* [readv(2)](http://man7.org/linux/man-pages/man2/readv.2.html) reads
	* from an fd into the `__count` buffers described by `__iov`.
	*
	* Returns the number of bytes read on success,
	* and returns -1 and sets `errno` on failure.
	*/
	ssize_t readv(int __fd, const struct iovec* _Nonnull __iov, int __count);

	/**
	* [writev(2)](http://man7.org/linux/man-pages/man2/writev.2.html) writes
	* to an fd from the `__count` buffers described by `__iov`.
	*
	* Returns the number of bytes written on success,
	* and returns -1 and sets `errno` on failure.
	*/
	ssize_t writev(int __fd, const struct iovec* _Nonnull __iov, int __count);

	#if defined(__USE_GNU)

	/**
	* [preadv(2)](http://man7.org/linux/man-pages/man2/preadv.2.html) reads
	* from an fd into the `__count` buffers described by `__iov`, starting at
	* offset `__offset` into the file.
	*
	* Returns the number of bytes read on success,
	* and returns -1 and sets `errno` on failure.
	*
	* Available since API level 24.
	*/

	#if __ANDROID_API__ >= 24
	ssize_t preadv(int __fd, const struct iovec* _Nonnull __iov, int __count, off_t __offset) __RENAME_IF_FILE_OFFSET64(preadv64) __INTRODUCED_IN(24);

	/**
	* [pwritev(2)](http://man7.org/linux/man-pages/man2/pwritev.2.html) writes
	* to an fd from the `__count` buffers described by `__iov`, starting at offset
	* `__offset` into the file.
	*
	* Returns the number of bytes written on success,
	* and returns -1 and sets `errno` on failure.
	*
	* Available since API level 24.
	*/
	ssize_t pwritev(int __fd, const struct iovec* _Nonnull __iov, int __count, off_t __offset) __RENAME_IF_FILE_OFFSET64(pwritev64) __INTRODUCED_IN(24);

	/**
	* Like preadv() but with a 64-bit offset even in a 32-bit process.
	*
	* Available since API level 24.
	*/
	ssize_t preadv64(int __fd, const struct iovec* _Nonnull __iov, int __count, off64_t __offset) __INTRODUCED_IN(24);

	/**
	* Like pwritev() but with a 64-bit offset even in a 32-bit process.
	*
	* Available since API level 24.
	*/
	ssize_t pwritev64(int __fd, const struct iovec* _Nonnull __iov, int __count, off64_t __offset) __INTRODUCED_IN(24);
	#endif /* __ANDROID_API__ >= 24 */


	/**
	* [preadv2(2)](http://man7.org/linux/man-pages/man2/preadv2.2.html) reads
	* from an fd into the `__count` buffers described by `__iov`, starting at
	* offset `__offset` into the file, with the given flags.
	*
	* Returns the number of bytes read on success,
	* and returns -1 and sets `errno` on failure.
	*
	* Available since API level 33.
	*/

	#if __ANDROID_API__ >= 33
	ssize_t preadv2(int __fd, const struct iovec* _Nonnull __iov, int __count, off_t __offset, int __flags) __RENAME_IF_FILE_OFFSET64(preadv64v2) __INTRODUCED_IN(33);

	/**
	* [pwritev2(2)](http://man7.org/linux/man-pages/man2/pwritev2.2.html) writes
	* to an fd from the `__count` buffers described by `__iov`, starting at offset
	* `__offset` into the file, with the given flags.
	*
	* Returns the number of bytes written on success,
	* and returns -1 and sets `errno` on failure.
	*
	* Available since API level 33.
	*/
	ssize_t pwritev2(int __fd, const struct iovec* _Nonnull __iov, int __count, off_t __offset, int __flags) __RENAME_IF_FILE_OFFSET64(pwritev64v2) __INTRODUCED_IN(33);

	/**
	* Like preadv2() but with a 64-bit offset even in a 32-bit process.
	*
	* Available since API level 33.
	*/
	ssize_t preadv64v2(int __fd, const struct iovec* _Nonnull __iov, int __count, off64_t __offset, int __flags) __INTRODUCED_IN(33);

	/**
	* Like pwritev2() but with a 64-bit offset even in a 32-bit process.
	*
	* Available since API level 33.
	*/
	ssize_t pwritev64v2(int __fd, const struct iovec* _Nonnull __iov, int __count, off64_t __offset, int __flags) __INTRODUCED_IN(33);
	#endif /* __ANDROID_API__ >= 33 */


	/**
	* [process_vm_readv(2)](http://man7.org/linux/man-pages/man2/process_vm_readv.2.html)
	* reads from the address space of another process.
	*
	* Returns the number of bytes read on success,
	* and returns -1 and sets `errno` on failure.
	*
	* Available since API level 23.
	*/

	#if __ANDROID_API__ >= 23
	ssize_t process_vm_readv(pid_t __pid, const struct iovec* __BIONIC_COMPLICATED_NULLNESS __local_iov, unsigned long __local_iov_count, const struct iovec* __BIONIC_COMPLICATED_NULLNESS __remote_iov, unsigned long __remote_iov_count, unsigned long __flags) __INTRODUCED_IN(23);

	/**
	* [process_vm_writev(2)](http://man7.org/linux/man-pages/man2/process_vm_writev.2.html)
	* writes to the address space of another process.
	*
	* Returns the number of bytes read on success,
	* and returns -1 and sets `errno` on failure.
	*
	* Available since API level 23.
	*/
	ssize_t process_vm_writev(pid_t __pid, const struct iovec* __BIONIC_COMPLICATED_NULLNESS __local_iov, unsigned long __local_iov_count, const struct iovec* __BIONIC_COMPLICATED_NULLNESS __remote_iov, unsigned long __remote_iov_count, unsigned long __flags) __INTRODUCED_IN(23);
	#endif /* __ANDROID_API__ >= 23 */


	#endif

	__END_DECLS