table of contents
| explain_time_or_die(3) | Library Functions Manual | explain_time_or_die(3) |
NAME¶
explain_time_or_die - get time in seconds and report errorsSYNOPSIS¶
#include <libexplain/time.h>time_t explain_time_or_die(time_t *t);
time_t explain_time_on_error(time_t *t);
DESCRIPTION¶
The explain_time_or_die function is used to call the time(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_time(3) function, and then the process terminates by calling exit(EXIT_FAILURE).The explain_time_on_error function is used to call the time(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_time(3) function, but still returns to the caller.
- t
- The t, exactly as to be passed to the time(2) system call.
RETURN VALUE¶
The explain_time_or_die function only returns on success, see time(2) for more information. On failure, prints an explanation and exits, it does not return.The explain_time_on_error function always returns the value return by the wrapped time(2) system call.
EXAMPLE¶
The explain_time_or_die function is intended to be used in a fashion similar to the following example:time_t result = explain_time_or_die(t);
SEE ALSO¶
- time(2)
- get time in seconds
- explain_time(3)
- explain time(2) errors
- exit(2)
- terminate the calling process
COPYRIGHT¶
libexplain version 1.4Copyright (C) 2009 Peter Miller