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Man Pages
explain_utimens_or_die(3) FreeBSD Library Functions Manual explain_utimens_or_die(3)

explain_utimens_or_die - change file timestamps and report errors

#include <libexplain/utimens.h>
void explain_utimens_or_die(const char *pathname, const struct timespec *data);
 
int explain_utimens_on_error(const char *pathname, const struct timespec *data);

The explain_utimens_or_die function is used to call the utimens(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_utimens(3) function, and then the process terminates by calling exit(EXIT_FAILURE).
The explain_utimens_on_error function is used to call the utimens(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_utimens(3) function, but still returns to the caller.
pathname
The pathname, exactly as to be passed to the utimens(2) system call.
data
The data, exactly as to be passed to the utimens(2) system call.

The explain_utimens_or_die function only returns on success, see utimens(2) for more information. On failure, prints an explanation and exits, it does not return.
The explain_utimens_on_error function always returns the value return by the wrapped utimens(2) system call.

The explain_utimens_or_die function is intended to be used in a fashion similar to the following example:
explain_utimens_or_die(pathname, data);

utimens(2)
change file last access and modification times
explain_utimens(3)
explain utimens(2) errors
exit(2)
terminate the calling process

libexplain version 1.3
 
Copyright (C) 2012 Peter Miller

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