07-07-2007
The Successful write operation
write system call returs an integer the value of which is number of bytes written. If the sytem call write returns -1 then an error has occured.
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LEARN ABOUT DEBIAN
explain_write_or_die
explain_write_or_die(3) Library Functions Manual explain_write_or_die(3)
NAME
explain_write_or_die - write to a file descriptor and report errors
SYNOPSIS
#include <libexplain/write.h>
void explain_write_or_die(int fildes, const void *data, long data_size);
DESCRIPTION
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.
SEE ALSO
write(2)
write to a file descriptor
explain_write(3)
explain write(2) errors
exit(2) terminate the calling process
COPYRIGHT
libexplain version 0.52
Copyright (C) 2008 Peter Miller
explain_write_or_die(3)