bionic (3) explain_mmap_or_die.3.gz

Provided by: libexplain-dev_1.4.D001-7_amd64 bug

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


       libexplain version 1.4
       Copyright (C) 2010 Peter Miller

                                                                                          explain_mmap_or_die(3)