NAME

       explain_fstatvfs_or_die - get file system statistics and report errors

SYNOPSIS

       #include <libexplain/fstatvfs.h>
       void explain_fstatvfs_or_die(int fildes, struct statvfs *data);
       int explain_fstatvfs_on_error(int fildes, struct statvfs *data);

DESCRIPTION

       The  explain_fstatvfs_or_die  function  is  used  to  call the fstatvfs(2) system call. On
       failure an explanation will be printed to stderr, obtained  from  the  explain_fstatvfs(3)
       function, and then the process terminates by calling exit(EXIT_FAILURE).

       The  explain_fstatvfs_on_error  function  is  used to call the fstatvfs(2) system call. On
       failure an explanation will be printed to stderr, obtained  from  the  explain_fstatvfs(3)
       function, but still returns to the caller.

       fildes  The fildes, exactly as to be passed to the fstatvfs(2) system call.

       data    The data, exactly as to be passed to the fstatvfs(2) system call.

RETURN VALUE

       The  explain_fstatvfs_or_die  function  only  returns on success, see fstatvfs(2) for more
       information. On failure, prints an explanation and exits, it does not return.

       The explain_fstatvfs_on_error function always returns the  value  return  by  the  wrapped
       fstatvfs(2) system call.

EXAMPLE

       The  explain_fstatvfs_or_die  function  is intended to be used in a fashion similar to the
       following example:
              explain_fstatvfs_or_die(fildes, data);

SEE ALSO

       fstatvfs(2)
               get file system statistics

       explain_fstatvfs(3)
               explain fstatvfs(2) errors

       exit(2) terminate the calling process

COPYRIGHT

       libexplain version 0.52
       Copyright (C) 2010 Peter Miller

                                                                       explain_fstatvfs_or_die(3)