1explain_statfs_or_die(3)   Library Functions Manual   explain_statfs_or_die(3)
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NAME

6       explain_statfs_or_die - get file system statistics and report errors
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SYNOPSIS

9       #include <libexplain/statfs.h>
10       void explain_statfs_or_die(const char *pathname, struct statfs *data);
11       int explain_statfs_on_error(const char *pathname, struct statfs *data);
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DESCRIPTION

14       The explain_statfs_or_die function is used to call the statfs(2) system
15       call. On failure an explanation will be  printed  to  stderr,  obtained
16       from the explain_statfs(3) function, and then the process terminates by
17       calling exit(EXIT_FAILURE).
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19       The explain_statfs_on_error function is used to call the statfs(2) sys‐
20       tem call. On failure an explanation will be printed to stderr, obtained
21       from the explain_statfs(3) function, but still returns to the caller.
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23       pathname
24               The pathname, exactly as to be passed to the  statfs(2)  system
25               call.
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27       data    The data, exactly as to be passed to the statfs(2) system call.
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RETURN VALUE

30       The   explain_statfs_or_die  function  only  returns  on  success,  see
31       statfs(2) for more information. On failure, prints an  explanation  and
32       exits, it does not return.
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34       The explain_statfs_on_error function always returns the value return by
35       the wrapped statfs(2) system call.
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EXAMPLE

38       The explain_statfs_or_die function is intended to be used in a  fashion
39       similar to the following example:
40              explain_statfs_or_die(pathname, data);
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SEE ALSO

43       statfs(2)
44               get file system statistics
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46       explain_statfs(3)
47               explain statfs(2) errors
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49       exit(2) terminate the calling process
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52       libexplain version 0.40
53       Copyright (C) 2009 Peter Miller
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57                                                      explain_statfs_or_die(3)
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