explain_read_or_die - read from a file descriptor and report errors
#include <libexplain/read.h>
long explain_read_or_die(int fildes, const void *data, long data_size);
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.
- read(2)
- read from a file descriptor
- explain_read(3)
- explain read(2) errors
- exit(2)
- terminate the calling process
libexplain version 1.3
Copyright (C) 2008 Peter Miller