doxygen/html/uio_8h_source.html

/*

 * SPDX-FileCopyrightText: Copyright The Zephyr Project Contributors

 * SPDX-License-Identifier: Apache-2.0

 */


#ifndef ZEPHYR_INCLUDE_POSIX_SYS_UIO_H_

#define ZEPHYR_INCLUDE_POSIX_SYS_UIO_H_


#include <stddef.h>

#include <sys/types.h>


#ifdef __cplusplus

extern "C" {

#endif


#if !(defined(_IOVEC_DECLARED) || defined(__iovec_defined)) || defined(__DOXYGEN__)

struct iovec {

    void  *iov_base;

    size_t iov_len;

};

#define _IOVEC_DECLARED

#define __iovec_defined

#endif


ssize_t readv(int fildes, const struct iovec *iov, int iovcnt);


ssize_t writev(int fildes, const struct iovec *iov, int iovcnt);


#ifdef __cplusplus

}

#endif


#endif /* ZEPHYR_INCLUDE_POSIX_SYS_UIO_H_ */

readv
ssize_t readv(int fildes, const struct iovec *iov, int iovcnt)
Read data into multiple buffers (scatter input).

writev
ssize_t writev(int fildes, const struct iovec *iov, int iovcnt)
Write data from multiple buffers (gather output).

iovec
Scatter/gather array element.
Definition socket.h:66

iovec::iov_base
void * iov_base
Pointer to data.
Definition socket.h:67

iovec::iov_len
size_t iov_len
Length of the data.
Definition socket.h:68

types.h
POSIX fundamental types (<sys/types.h>)