debian man page for explain_mmap_or_die

Query: explain_mmap_or_die

OS: debian

Section: 3

Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar

explain_mmap_or_die(3)					     Library Functions Manual					    explain_mmap_or_die(3)

NAME
explain_mmap_or_die - map file or device into memory and report errors
SYNOPSIS
#include <libexplain/mmap.h> void *explain_mmap_or_die(void *data, size_t data_size, int prot, int flags, int fildes, off_t offset); void *explain_mmap_on_error(void *data, size_t data_size, int prot, int flags, int fildes, off_t offset);
DESCRIPTION
The explain_mmap_or_die function is used to call the mmap(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_mmap(3) function, and then the process terminates by calling exit(EXIT_FAILURE). The explain_mmap_on_error function is used to call the mmap(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_mmap(3) function, but still returns to the caller. data The data, exactly as to be passed to the mmap(2) system call. data_size The data_size, exactly as to be passed to the mmap(2) system call. prot The prot, exactly as to be passed to the mmap(2) system call. flags The flags, exactly as to be passed to the mmap(2) system call. fildes The fildes, exactly as to be passed to the mmap(2) system call. offset The offset, exactly as to be passed to the mmap(2) system call.
RETURN VALUE
The explain_mmap_or_die function only returns on success, see mmap(2) for more information. On failure, prints an explanation and exits, it does not return. The explain_mmap_on_error function always returns the value return by the wrapped mmap(2) system call.
EXAMPLE
The explain_mmap_or_die function is intended to be used in a fashion similar to the following example: explain_mmap_or_die(data, data_size, prot, flags, fildes, offset);
SEE ALSO
mmap(2) map file or device into memory explain_mmap(3) explain mmap(2) errors exit(2) terminate the calling process
COPYRIGHT
libexplain version 0.52 Copyright (C) 2010 Peter Miller explain_mmap_or_die(3)
Related Man Pages
explain_accept4_or_die(3) - debian
explain_mmap_or_die(3) - debian
explain_pread(3) - debian
explain_pwrite(3) - debian
explain_vsnprintf_or_die(3) - debian
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