explain_write_or_die(3)

explain_write_or_die3

Write to a file descriptor and report errors

Usage

#include <libexplain/write.h>

void explain_write_or_die(int fildes, const void *data, long data_size);

Overview

The explain_write_or_die function is used to call the write(2) system call. On failure an explanation will be printed to stderr, obtained from explain_write(3), and then the process terminates by calling exit(EXIT_FAILURE).

This function is intended to be used in a fashion similar to the following example:

ssize_t result = explain_write_or_die(fildes, data, data_size);
fildes

The fildes, exactly as to be passed to the write(2) system call.

data

The data, exactly as to be passed to the write(2) system call.

data_size

The data_size, exactly as to be passed to the write(2) system call.

Returns:

This function only returns on success. On failure, prints an explanation and exits.

Releases

6 releases since Debian 7 (Wheezy); the text changed 1 time.

  1. 7
  2. 9–13

From libexplain-dev 1.4.D001-16 in Debian 13 (Trixie). Parsed by carta from the page's man source.