php5-apc retained as dummy package.

[php5-apc.git] / apc_sem.c

diff --git a/apc_sem.c b/apc_sem.c
deleted file mode 100644 (file)
index e76ca20..0000000
--- a/apc_sem.c
+++ /dev/null
@@ -1,177 +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: Daniel Cowgill <dcowgill@communityconnect.com>              |
-  +----------------------------------------------------------------------+
-
-   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_sem.c,v 3.16.2.1 2008/05/11 18:57:00 rasmus Exp $ */
-
-#include "apc_sem.h"
-#include "apc.h"
-#include "php.h"
-#include <sys/types.h>
-#include <sys/ipc.h>
-#include <sys/sem.h>
-#include <sys/stat.h>
-#include <unistd.h>
-
-#if HAVE_SEMUN
-/* we have semun, no need to define */
-#else
-#undef HAVE_SEMUN
-union semun {
-    int val;                  /* value for SETVAL */
-    struct semid_ds *buf;     /* buffer for IPC_STAT, IPC_SET */
-    unsigned short *array;    /* array for GETALL, SETALL */
-                              /* Linux specific part: */
-    struct seminfo *__buf;    /* buffer for IPC_INFO */
-};
-#define HAVE_SEMUN 1
-#endif
-
-#ifndef SEM_R
-# define SEM_R 0444
-#endif
-#ifndef SEM_A
-# define SEM_A 0222
-#endif
-
-/* always use SEM_UNDO, otherwise we risk deadlock */
-#define USE_SEM_UNDO
-
-#ifdef USE_SEM_UNDO
-# define UNDO SEM_UNDO
-#else
-# define UNDO 0
-#endif
-
-int apc_sem_create(const char* pathname, int proj, int initval)
-{
-    int semid;
-    int perms;
-    union semun arg;
-    key_t key;
-
-    perms = 0777;
-
-    key = IPC_PRIVATE;
-    if (pathname != NULL) {
-        if ((key = ftok(pathname, proj)) < 0) {
-            apc_eprint("apc_sem_create: ftok(%s,%d) failed:", pathname, proj);
-        }
-    }
-    
-    if ((semid = semget(key, 1, IPC_CREAT | IPC_EXCL | perms)) >= 0) {
-        /* sempahore created for the first time, initialize now */
-        arg.val = initval;
-        if (semctl(semid, 0, SETVAL, arg) < 0) {
-            apc_eprint("apc_sem_create: semctl(%d,...) failed:", semid);
-        }
-    }
-    else if (errno == EEXIST) {
-        /* sempahore already exists, don't initialize */
-        if ((semid = semget(key, 1, perms)) < 0) {
-            apc_eprint("apc_sem_create: semget(%u,...) failed:", key);
-        }
-        /* insert <sleazy way to avoid race condition> here */
-    }
-    else {
-        apc_eprint("apc_sem_create: semget(%u,...) failed:", key);
-    }
-
-    return semid;
-}
-
-void apc_sem_destroy(int semid)
-{
-    /* we expect this call to fail often, so we do not check */
-    union semun arg;
-    semctl(semid, 0, IPC_RMID, arg);
-}
-
-void apc_sem_lock(int semid)
-{
-    struct sembuf op;
-
-    op.sem_num = 0;
-    op.sem_op  = -1;
-    op.sem_flg = UNDO;
-
-    if (semop(semid, &op, 1) < 0) {
-        if (errno != EINTR) {
-            apc_eprint("apc_sem_lock: semop(%d) failed:", semid);
-        }
-    }
-}
-
-void apc_sem_unlock(int semid)
-{
-    struct sembuf op;
-
-    op.sem_num = 0;
-    op.sem_op  = 1;
-    op.sem_flg = UNDO;
-
-    if (semop(semid, &op, 1) < 0) {
-        if (errno != EINTR) {
-            apc_eprint("apc_sem_unlock: semop(%d) failed:", semid);
-        }
-    }
-}
-
-void apc_sem_wait_for_zero(int semid)
-{
-    struct sembuf op;
-
-    op.sem_num = 0;
-    op.sem_op  = 0;
-    op.sem_flg = UNDO;
-
-    if (semop(semid, &op, 1) < 0) {
-        if (errno != EINTR) {
-            apc_eprint("apc_sem_waitforzero: semop(%d) failed:", semid);
-        }
-    }
-}
-
-int apc_sem_get_value(int semid)
-{
-    union semun arg;
-    unsigned short val[1];
-
-    arg.array = val;
-    if (semctl(semid, 0, GETALL, arg) < 0) {
-        apc_eprint("apc_sem_getvalue: semctl(%d,...) failed:", semid);
-    }
-    return val[0];
-}
-
-/*
- * 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
- */