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

6       explain_statvfs_or_die - get file system statistics and report errors
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SYNOPSIS

9       #include <libexplain/statvfs.h>
10       void   explain_statvfs_or_die(const   char  *pathname,  struct  statvfs
11       *data);
12       int  explain_statvfs_on_error(const  char  *pathname,  struct   statvfs
13       *data);
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DESCRIPTION

16       The explain_statvfs_or_die function is used to call the statvfs(2) sys‐
17       tem call. On failure an explanation will be printed to stderr, obtained
18       from  the  explain_statvfs(3) function, and then the process terminates
19       by calling exit(EXIT_FAILURE).
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21       The explain_statvfs_on_error function is used to  call  the  statvfs(2)
22       system  call.  On  failure  an  explanation  will be printed to stderr,
23       obtained from the explain_statvfs(3) function, but still returns to the
24       caller.
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26       pathname
27               The  pathname, exactly as to be passed to the statvfs(2) system
28               call.
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30       data    The data, exactly as to be  passed  to  the  statvfs(2)  system
31               call.
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RETURN VALUE

34       The  explain_statvfs_or_die  function  only  returns  on  success,  see
35       statvfs(2) for more information. On failure, prints an explanation  and
36       exits, it does not return.
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38       The  explain_statvfs_on_error  function always returns the value return
39       by the wrapped statvfs(2) system call.
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EXAMPLE

42       The explain_statvfs_or_die function is intended to be used in a fashion
43       similar to the following example:
44              explain_statvfs_or_die(pathname, data);
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SEE ALSO

47       statvfs(2)
48               get file system statistics
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50       explain_statvfs(3)
51               explain statvfs(2) errors
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53       exit(2) terminate the calling process
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56       libexplain version 1.4
57       Copyright (C) 2010 Peter Miller
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61                                                     explain_statvfs_or_die(3)
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