SIMPLE SOLUTIONS

EXPLAIN_MUNMAP_OR_DIE - reference manual online

Unmap a file or device from memory and report errors.

Chapter
explain_munmap_or_die(3)             Library Functions Manual            explain_munmap_or_die(3)

NAME explain_munmap_or_die - unmap a file or device from memory and report errors
SYNOPSIS #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);
DESCRIPTION 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. data The data, exactly as to be passed to the munmap(2) system call. data_size The data_size, exactly as to be passed to the munmap(2) system call.
RETURN VALUE The explain_munmap_or_die function only returns on success, see munmap(2) for more infor‐ mation. 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 mun‐ map(2) system call.
EXAMPLE The explain_munmap_or_die function is intended to be used in a fashion similar to the fol‐ lowing example: explain_munmap_or_die(data, data_size);
SEE ALSO munmap(2) unmap a file or device from memory explain_munmap(3) explain munmap(2) errors exit(2) terminate the calling process
explain_munmap_or_die(3)
This manual Reference Other manuals
explain_munmap_or_die(3) referred by explain(3) | explain_munmap(3)
refer to _exit(2) | explain_munmap(3) | mmap(2)