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