| explain_fstatvfs_or_die(3) | Library Functions Manual | explain_fstatvfs_or_die(3) |
explain_fstatvfs_or_die - get file system statistics and report errors
#include <libexplain/fstatvfs.h>
void explain_fstatvfs_or_die(int fildes, struct statvfs *data);
int explain_fstatvfs_on_error(int fildes, struct statvfs *data);
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.
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.
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);
libexplain version 1.4
Copyright (C) 2010 Peter Miller