1explain_adjtimex_or_die(3) Library Functions Manual explain_adjtimex_or_die(3)
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6 explain_adjtimex_or_die - tune kernel clock and report errors
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9 #include <libexplain/adjtimex.h>
10 int explain_adjtimex_or_die(struct timex *data);
11 int explain_adjtimex_on_error(struct timex *data);
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14 The explain_adjtimex_or_die function is used to call the adjtimex(2)
15 system call. On failure an explanation will be printed to stderr,
16 obtained from the explain_adjtimex(3) function, and then the process
17 terminates by calling exit(EXIT_FAILURE).
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19 The explain_adjtimex_on_error function is used to call the adjtimex(2)
20 system call. On failure an explanation will be printed to stderr,
21 obtained from the explain_adjtimex(3) function, but still returns to
22 the caller.
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24 data The data, exactly as to be passed to the adjtimex(2) system
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28 The explain_adjtimex_or_die function only returns on success, see adj‐
29 timex(2) for more information. On failure, prints an explanation and
30 exits, it does not return.
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32 The explain_adjtimex_on_error function always returns the value return
33 by the wrapped adjtimex(2) system call.
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36 The explain_adjtimex_or_die function is intended to be used in a fash‐
37 ion similar to the following example:
38 int result = explain_adjtimex_or_die(data);
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41 adjtimex(2)
42 tune kernel clock
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44 explain_adjtimex(3)
45 explain adjtimex(2) errors
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47 exit(2) terminate the calling process
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50 libexplain version 1.4
51 Copyright (C) 2009 Peter Miller
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55 explain_adjtimex_or_die(3)