NAME

       explain_shmat_or_die - shared memory attach and report errors

SYNOPSIS

       #include <libexplain/shmat.h>
       void *explain_shmat_or_die(int shmid, const void *shmaddr, int shmflg);
       void *explain_shmat_on_error(int shmid, const void *shmaddr, int shmflg);

DESCRIPTION

       The  explain_shmat_or_die function is used to call the shmat(2) system call. On failure an
       explanation will be printed to stderr, obtained from the  explain_shmat(3)  function,  and
       then the process terminates by calling exit(EXIT_FAILURE).

       The  explain_shmat_on_error  function is used to call the shmat(2) system call. On failure
       an explanation will be printed to stderr, obtained from the explain_shmat(3) function, but
       still returns to the caller.

       shmid   The shmid, exactly as to be passed to the shmat(2) system call.

       shmaddr The shmaddr, exactly as to be passed to the shmat(2) system call.

       shmflg  The shmflg, exactly as to be passed to the shmat(2) system call.

RETURN VALUE

       The  explain_shmat_or_die  function  only  returns  on  success,  see  shmat(2)  for  more
       information. On failure, prints an explanation and exits, it does not return.

       The explain_shmat_on_error function  always  returns  the  value  return  by  the  wrapped
       shmat(2) system call.

EXAMPLE

       The  explain_shmat_or_die  function  is  intended  to  be used in a fashion similar to the
       following example:
              void *result = explain_shmat_or_die(shmid, shmaddr, shmflg);

SEE ALSO

       shmat(2)
               shared memory attach

       explain_shmat(3)
               explain shmat(2) errors

       exit(2) terminate the calling process

COPYRIGHT

       libexplain version 1.4
       Copyright (C) 2011 Peter Miller

                                                                          explain_shmat_or_die(3)