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

6       explain_fstatfs_or_die - get file system statistics and report errors
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SYNOPSIS

9       #include <libexplain/fstatfs.h>
10       void explain_fstatfs_or_die(int fildes, struct statfs *data);
11       int explain_fstatfs_on_error(int fildes, struct statfs *data);
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DESCRIPTION

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

31       The  explain_fstatfs_or_die  function  only  returns  on  success,  see
32       fstatfs(2) for more information. On failure, prints an explanation  and
33       exits, it does not return.
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35       The  explain_fstatfs_on_error  function always returns the value return
36       by the wrapped fstatfs(2) system call.
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EXAMPLE

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

44       fstatfs(2)
45               get file system statistics
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47       explain_fstatfs(3)
48               explain fstatfs(2) errors
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50       exit(2) terminate the calling process
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53       libexplain version 1.4
54       Copyright (C) 2009 Peter Miller
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58                                                     explain_fstatfs_or_die(3)
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