| explain_munmap_or_die(3) | Library Functions Manual | explain_munmap_or_die(3) |
explain_munmap_or_die - unmap a file or device from memory and report errors
#include <libexplain/munmap.h>
void explain_munmap_or_die(void *data, size_t data_size);
int explain_munmap_on_error(void *data, size_t data_size);
The explain_munmap_or_die function is used to call the munmap(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_munmap(3) function, and then the process terminates by calling exit(EXIT_FAILURE).
The explain_munmap_on_error function is used to call the munmap(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_munmap(3) function, but still returns to the caller.
The explain_munmap_or_die function only returns on success, see munmap(2) for more information. On failure, prints an explanation and exits, it does not return.
The explain_munmap_on_error function always returns the value return by the wrapped munmap(2) system call.
The explain_munmap_or_die function is intended to be used in a fashion similar to the following example:
explain_munmap_or_die(data, data_size);
libexplain version 1.4
Copyright (C) 2010 Peter Miller