explain_settimeofday_or_die - sets system time and report errors
#include <libexplain/settimeofday.h>
void explain_settimeofday_or_die(const struct timeval *tv, const struct timezone
*tz);
int explain_settimeofday_on_error(const struct timeval *tv, const struct
timezone *tz);
The
explain_settimeofday_or_die function is used to call the
settimeofday(2) system call. On failure an explanation will be printed
to
stderr, obtained from the
explain_settimeofday(3) function,
and then the process terminates by calling exit(EXIT_FAILURE).
The
explain_settimeofday_on_error function is used to call the
settimeofday(2) system call. On failure an explanation will be printed
to
stderr, obtained from the
explain_settimeofday(3) function,
but still returns to the caller.
- tv
- The tv, exactly as to be passed to the settimeofday(2) system
call.
- tz
- The tz, exactly as to be passed to the settimeofday(2) system
call.
The
explain_settimeofday_or_die function only returns on success, see
settimeofday(2) for more information. On failure, prints an explanation
and exits, it does not return.
The
explain_settimeofday_on_error function always returns the value
return by the wrapped
settimeofday(2) system call.
The
explain_settimeofday_or_die function is intended to be used in a
fashion similar to the following example:
explain_settimeofday_or_die(tv, tz);
- settimeofday(2)
- sets system time
- explain_settimeofday(3)
- explain settimeofday(2) errors
- exit(2)
- terminate the calling process
libexplain version 1.3
Copyright (C) 2013 Peter Miller