bionic (3) explain_fstatvfs_or_die.3.gz

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 1.4
       Copyright (C) 2010 Peter Miller

                                                                                      explain_fstatvfs_or_die(3)