shared memory

shm_unlink(3)						     Library Functions Manual						     shm_unlink(3)

NAME

       shm_unlink - Removes a shared memory object created by a call to the shm_open function (P1003.1b)

LIBRARY

       Realtime Library (librt.so, librt.a)

SYNOPSIS

       #include <sys/mman.h>

       int shm_unlink (
       const char *name);

PARAMETERS

       *name   Points to the name of the shared memory object.

DESCRIPTION

       The  shm_unlink	function  removes the name of the shared memory object pointed to by name.  If this file descriptor is used by other func-
       tions, all references to the shared memory object are removed, but content removal is delayed until all open and mapped references  to  the
       shared memory object are removed.

RETURN VALUES

       On a successful call to the shm_unlink function, a value of 0 (zero) is returned.  Otherwise, a value of -1 is returned and errno is set to
       indicate the error.

ERRORS

       The shm_unlink function fails under the following conditions:

       [EACCES] 	   Permission to unlink the shared memory object is denied.

       [ENAMETOOLONG]	   The length of the name argument exceeds PATH_MAX, or a pathname component is longer than NAME_MAX while _POSIX_NO_TRUNC
			   is in effect.

       [ENOENT] 	   The named shared memory object does not exist.

RELATED INFORMATION

       Functions: close(2), mmap(2), munmap(2), shm_open(3)

       Guide to Realtime Programming delim off

																     shm_unlink(3)