php5-apc retained as dummy package.

[php5-apc.git] / apc_mmap.c

diff --git a/apc_mmap.c b/apc_mmap.c
deleted file mode 100644 (file)
index f29de88..0000000
--- a/apc_mmap.c
+++ /dev/null
@@ -1,139 +0,0 @@
-/*
-  +----------------------------------------------------------------------+
-  | APC                                                                  |
-  +----------------------------------------------------------------------+
-  | Copyright (c) 2008 The PHP Group                                     |
-  +----------------------------------------------------------------------+
-  | This source file is subject to version 3.01 of the PHP license,      |
-  | that is bundled with this package in the file LICENSE, and is        |
-  | available through the world-wide-web at the following url:           |
-  | http://www.php.net/license/3_01.txt                                  |
-  | If you did not receive a copy of the PHP license and are unable to   |
-  | obtain it through the world-wide-web, please send a note to          |
-  | license@php.net so we can mail you a copy immediately.               |
-  +----------------------------------------------------------------------+
-  | Authors: Rasmus Lerdorf <rasmus@php.net>                             |
-  +----------------------------------------------------------------------+
-
-   This software was contributed to PHP by Community Connect Inc. in 2002
-   and revised in 2005 by Yahoo! Inc. to add support for PHP 5.1.
-   Future revisions and derivatives of this source code must acknowledge
-   Community Connect Inc. as the original contributor of this module by
-   leaving this note intact in the source code.
-
-   All other licensing and usage conditions are those of the PHP Group.
-
- */
-
-/* $Id: apc_mmap.c,v 3.7.2.2 2008/05/11 18:57:00 rasmus Exp $ */
-
-#include "apc.h"
-
-#if APC_MMAP
-
-#include <fcntl.h>
-#include <sys/types.h>
-#include <sys/mman.h>
-
-/* 
- * Some operating systems (like FreeBSD) have a MAP_NOSYNC flag that
- * tells whatever update daemons might be running to not flush dirty
- * vm pages to disk unless absolutely necessary.  My guess is that
- * most systems that don't have this probably default to only synching
- * to disk when absolutely necessary.
- */
-#ifndef MAP_NOSYNC
-#define MAP_NOSYNC 0
-#endif
-
-void *apc_mmap(char *file_mask, size_t size)
-{
-    void* shmaddr;  /* the shared memory address */
-
-    /* If no filename was provided, do an anonymous mmap */
-    if(!file_mask || (file_mask && !strlen(file_mask))) {
-        shmaddr = (void *)mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_ANON, -1, 0);
-    } else {
-        int fd;
-
-        /* 
-         * If the filemask contains .shm we try to do a POSIX-compliant shared memory
-         * backed mmap which should avoid synchs on some platforms.  At least on
-         * FreeBSD this implies MAP_NOSYNC and on Linux it is equivalent of mmap'ing
-         * a file in a mounted shmfs.  For this to work on Linux you need to make sure
-         * you actually have shmfs mounted.  Also on Linux, make sure the file_mask you
-         * pass in has a leading / and no other /'s.  eg.  /apc.shm.XXXXXX
-         * On FreeBSD these are mapped onto the regular filesystem so you can put whatever
-         * path you want here.
-         */
-        if(strstr(file_mask,".shm")) {
-            mktemp(file_mask);
-            fd = shm_open(file_mask, O_CREAT|O_RDWR, S_IRUSR|S_IWUSR);
-            if(fd == -1) {
-                apc_eprint("apc_mmap: shm_open on %s failed:", file_mask);
-                return (void *)-1;
-            }
-            if (ftruncate(fd, size) < 0) {
-                close(fd);
-                shm_unlink(file_mask);
-                apc_eprint("apc_mmap: ftruncate failed:");
-                return (void *)-1;
-            }
-            shmaddr = (void *)mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
-            shm_unlink(file_mask);
-            close(fd);
-        }
-        /*
-         * Support anonymous mmap through the /dev/zero interface as well
-         */
-        else if(!strcmp(file_mask,"/dev/zero")) {
-            fd = open("/dev/zero", O_RDWR, S_IRUSR | S_IWUSR);
-            if(fd == -1) {
-                apc_eprint("apc_mmap: open on /dev/zero failed:");
-                return (void *)-1;
-            }
-            shmaddr = (void *)mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
-            close(fd);
-        }
-        /* 
-         * Otherwise we do a normal filesystem mmap
-         */
-        else {
-            fd = mkstemp(file_mask);
-            if(fd == -1) {
-                apc_eprint("apc_mmap: mkstemp on %s failed:", file_mask);
-                return (void *)-1;
-            }
-            if (ftruncate(fd, size) < 0) {
-                close(fd);
-                unlink(file_mask);
-                apc_eprint("apc_mmap: ftruncate failed:");
-            }
-            shmaddr = (void *)mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_NOSYNC, fd, 0);
-            close(fd);
-            unlink(file_mask);
-        }
-    }
-    if((long)shmaddr == -1) {
-        apc_eprint("apc_mmap: mmap failed:");
-    }
-    return shmaddr;
-}
-
-void apc_unmap(void* shmaddr, size_t size)
-{
-    if (munmap(shmaddr, size) < 0) {
-        apc_wprint("apc_unmap: munmap failed:");
-    }
-}
-
-#endif
-
-/*
- * Local variables:
- * tab-width: 4
- * c-basic-offset: 4
- * End:
- * vim600: expandtab sw=4 ts=4 sts=4 fdm=marker
- * vim<600: expandtab sw=4 ts=4 sts=4
- */