1explain_futimens_or_die(3) Library Functions Manual explain_futimens_or_die(3)
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6 explain_futimens_or_die - change file timestamps and report errors
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9 #include <libexplain/futimens.h>
10 void explain_futimens_or_die(int fildes, const struct time_spec *data);
11 int explain_futimens_on_error(int fildes, const struct time_spec
12 *data);
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15 The explain_futimens_or_die function is used to call the futimens(3)
16 system call. On failure an explanation will be printed to stderr,
17 obtained from the explain_futimens(3) function, and then the process
18 terminates by calling exit(EXIT_FAILURE).
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20 The explain_futimens_on_error function is used to call the futimens(3)
21 system call. On failure an explanation will be printed to stderr,
22 obtained from the explain_futimens(3) function, but still returns to
23 the caller.
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25 fildes The fildes, exactly as to be passed to the futimens(3) system
26 call.
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28 data The data, exactly as to be passed to the futimens(3) system
29 call.
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32 The explain_futimens_or_die function only returns on success, see futi‐
33 mens(3) for more information. On failure, prints an explanation and
34 exits, it does not return.
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36 The explain_futimens_on_error function always returns the value return
37 by the wrapped futimens(3) system call.
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40 The explain_futimens_or_die function is intended to be used in a fash‐
41 ion similar to the following example:
42 explain_futimens_or_die(fildes, data);
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45 futimens(3)
46 change file timestamps with nanosecond precision
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48 explain_futimens(3)
49 explain futimens(3) errors
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51 exit(2) terminate the calling process
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54 libexplain version 1.4
55 Copyright (C) 2013 Peter Miller
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59 explain_futimens_or_die(3)