X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/0c530ab8987f0ae6a1a3d9284f40182b88852816..2d21ac55c334faf3a56e5634905ed6987fc787d4:/bsd/kern/pthread_support.c

diff --git a/bsd/kern/pthread_support.c b/bsd/kern/pthread_support.c
new file mode 100644
index 000000000..6cbe8e0df
--- /dev/null
+++ b/bsd/kern/pthread_support.c
@@ -0,0 +1,195 @@
+/*
+ * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+ * 
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ * 
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ * 
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+ */
+/* Copyright (c) 1995-2005 Apple Computer, Inc. All Rights Reserved */
+/*
+ *	pthread_support.c
+ */
+
+
+#define  _PTHREAD_CONDATTR_T
+#define  _PTHREAD_COND_T
+#define _PTHREAD_MUTEXATTR_T
+#define _PTHREAD_MUTEX_T
+#define _PTHREAD_RWLOCKATTR_T
+#define _PTHREAD_RWLOCK_T
+
+#undef pthread_mutexattr_t
+#undef pthread_mutex_t
+#undef pthread_condattr_t
+#undef pthread_cond_t
+#undef pthread_rwlockattr_t
+#undef pthread_rwlock_t
+
+#include <sys/param.h>
+#include <sys/resourcevar.h>
+#include <sys/proc_internal.h>
+#include <sys/kauth.h>
+#include <sys/systm.h>
+#include <sys/timeb.h>
+#include <sys/times.h>
+#include <sys/acct.h>
+#include <sys/file_internal.h>
+#include <sys/kernel.h>
+#include <sys/wait.h>
+#include <sys/signalvar.h>
+#include <sys/syslog.h>
+#include <sys/stat.h>
+#include <sys/lock.h>
+#include <sys/kdebug.h>
+
+#include <sys/mount.h>
+#include <sys/sysproto.h>
+
+#include <sys/vm.h>
+#include <kern/task.h>	
+#include <kern/thread.h>
+
+#include <sys/pthread_internal.h>
+
+#define PTHREAD_SYNCH_MAX 256
+static pthread_mutex_t * pmutex_trans_array[PTHREAD_SYNCH_MAX];
+static pthread_cond_t * pcond_trans_array[PTHREAD_SYNCH_MAX];
+//static pthread_rwlock_t * prwlock_trans_array[PTHREAD_SYNCH_MAX];
+
+pthread_mutex_t * 
+pthread_id_to_mutex(int mutexid)
+{
+	pthread_mutex_t * mtx = NULL;
+
+
+	if (mutexid >= 0 && mutexid < PTHREAD_SYNCH_MAX) {
+			pthread_list_lock();
+			mtx = pmutex_trans_array[mutexid];
+			if (mtx) {
+				MTX_LOCK(mtx->lock);
+				mtx->refcount++;
+				MTX_UNLOCK(mtx->lock);
+			} 
+			pthread_list_unlock();
+	}
+	return(mtx);
+}
+
+
+int	
+pthread_id_mutex_add(pthread_mutex_t * mutex)
+{
+	int i;
+
+	pthread_list_lock();
+	for(i = 1; i < PTHREAD_SYNCH_MAX; i++) {
+		if (pmutex_trans_array[i] == 0) {
+			pmutex_trans_array[i]  = mutex;
+			break;
+		}
+	}
+	pthread_list_unlock();
+	if (i == PTHREAD_SYNCH_MAX)
+		return(0);
+	return(i);
+}
+
+
+void
+pthread_id_mutex_remove(int mutexid)
+{
+	pthread_list_lock();
+	if (pmutex_trans_array[mutexid]) {
+		pmutex_trans_array[mutexid] = 0;
+	}
+	pthread_list_unlock();
+}
+
+
+void 
+pthread_mutex_release(pthread_mutex_t * mutex)
+{
+	MTX_LOCK(mutex->lock);
+	mutex->refcount --;
+	MTX_UNLOCK(mutex->lock);
+}
+
+
+pthread_cond_t * 
+pthread_id_to_cond(int condid)
+{
+	pthread_cond_t * cond = NULL;
+
+
+	if (condid >= 0 && condid < PTHREAD_SYNCH_MAX) {
+			pthread_list_lock();
+			cond = pcond_trans_array[condid];
+			if (cond) {
+				COND_LOCK(cond->lock);
+				cond->refcount++;
+				COND_UNLOCK(cond->lock);
+			} 
+			pthread_list_unlock();
+	}
+	return(cond);
+}
+
+
+int	
+pthread_id_cond_add(pthread_cond_t * cond)
+{
+	int i;
+
+	pthread_list_lock();
+	for(i = 1; i < PTHREAD_SYNCH_MAX; i++) {
+		if (pcond_trans_array[i] == 0) {
+			pcond_trans_array[i]  = cond;
+			break;
+		}
+	}
+	pthread_list_unlock();
+	if (i == PTHREAD_SYNCH_MAX)
+		return(0);
+	return(i);
+}
+
+
+void
+pthread_id_cond_remove(int condid)
+{
+	pthread_list_lock();
+	if (pcond_trans_array[condid]) {
+		pcond_trans_array[condid] = 0;
+	}
+	pthread_list_unlock();
+}
+
+
+void 
+pthread_cond_release(pthread_cond_t * cond)
+{
+	COND_LOCK(cond->lock);
+	cond->refcount --;
+	COND_UNLOCK(cond->lock);
+}
+