NAME
explain_fstatfs_or_die - get file system statistics and report errors
SYNOPSIS
#include <libexplain/fstatfs.h>
void explain_fstatfs_or_die(int fildes, struct statfs *data);
int explain_fstatfs_on_error(int fildes, struct statfs *data);
DESCRIPTION
The explain_fstatfs_or_die function is used to call the fstatfs(2)
system call. On failure an explanation will be printed to stderr,
obtained from the explain_fstatfs(3) function, and then the process
terminates by calling exit(EXIT_FAILURE).
The explain_fstatfs_on_error function is used to call the fstatfs(2)
system call. On failure an explanation will be printed to stderr,
obtained from the explain_fstatfs(3) function, but still returns to the
caller.
fildes The fildes, exactly as to be passed to the fstatfs(2) system
call.
data The data, exactly as to be passed to the fstatfs(2) system
call.
RETURN VALUE
The explain_fstatfs_or_die function only returns on success, see
fstatfs(2) for more information. On failure, prints an explanation and
exits, it does not return.
The explain_fstatfs_on_error function always returns the value return
by the wrapped fstatfs(2) system call.
EXAMPLE
The explain_fstatfs_or_die function is intended to be used in a fashion
similar to the following example:
explain_fstatfs_or_die(fildes, data);
SEE ALSO
fstatfs(2)
get file system statistics
explain_fstatfs(3)
explain fstatfs(2) errors
exit(2) terminate the calling process
COPYRIGHT
libexplain version 0.19
Copyright (C) 2009 Peter Miller
explain_fstatfs_or_die(3)