explain_fstatvfs_or_die(3)
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 0.37
Copyright (C) 2010 Peter Miller