explain_read_or_die3
Read from a file descriptor and report errors
Usage
#include <libexplain/read.h>
long explain_read_or_die(int fildes, const void *data, long data_size);
Overview
The explain_read_or_die function is used to call the read(2) system call. On failure an explanation will be printed to stderr, obtained from explain_read(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:
explain_read_or_die(fildes, data, data_size);- fildes
-
The fildes, exactly as to be passed to the read(2) system call.
- data
-
The data, exactly as to be passed to the read(2) system call.
- data_size
-
The data_size, exactly as to be passed to the read(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.