|explain_tcdrain_or_die(3)||Library Functions Manual||explain_tcdrain_or_die(3)|
NAME¶explain_tcdrain_or_die - Execute tcdrain(3) and report errors
void explain_tcdrain_or_die(int fildes);
int explain_tcdrain_on_error(int fildes);
DESCRIPTION¶The explain_tcdrain_or_die function is used to call the tcdrain(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_tcdrain(3) function, and then the process terminates by calling exit(EXIT_FAILURE).
The explain_tcdrain_on_error function is used to call the tcdrain(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_tcdrain(3) function, but still returns to the caller.
- The fildes, exactly as to be passed to the tcdrain(3) system call.
RETURN VALUE¶The explain_tcdrain_or_die function only returns on success, see tcdrain(3) for more information. On failure, prints an explanation and exits, it does not return.
The explain_tcdrain_on_error function always returns the value return by the wrapped tcdrain(3) system call.
EXAMPLE¶The explain_tcdrain_or_die function is intended to be used in a fashion similar to the following example:
COPYRIGHT¶libexplain version 1.4
Copyright (C) 2009 Peter Miller,,,