From 9b1c0e006f20091f28f3f468cfcab1feb51286bd Mon Sep 17 00:00:00 2001
From: Neo2003 <none@none>
Date: Thu, 2 Oct 2008 16:23:55 -0500
Subject: [svn] * Proper SVN structure

--HG--
branch : trunk
---
 dep/src/zthread/solaris/FastRecursiveLock.h | 122 ++++++++++++++++++++++++++++
 1 file changed, 122 insertions(+)
 create mode 100644 dep/src/zthread/solaris/FastRecursiveLock.h

(limited to 'dep/src/zthread/solaris/FastRecursiveLock.h')

diff --git a/dep/src/zthread/solaris/FastRecursiveLock.h b/dep/src/zthread/solaris/FastRecursiveLock.h
new file mode 100644
index 00000000000..956e1dbd3ad
--- /dev/null
+++ b/dep/src/zthread/solaris/FastRecursiveLock.h
@@ -0,0 +1,122 @@
+/*
+ * Copyright (c) 2005, Eric Crahen
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is furnished
+ * to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#ifndef __ZTFASTRECURSIVELOCK_H__
+#define __ZTFASTRECURSIVELOCK_H__
+
+#include "zthread/NonCopyable.h"
+#include <pthread.h>
+
+namespace ZThread {
+
+/**
+ * @class FastRecursiveLock
+ *
+ * @author Eric Crahen <http://www.code-foo.com>
+ * @date <2003-07-16T23:31:23-0400>
+ * @version 2.2.0
+ *
+ * This FastRecursiveLock implementation uses pthreads mutex attribute 
+ * functions to create a recursive lock. This implementation is not 
+ * specific to solaris and will work on any system that supports 
+ * pthread_mutexattr_settype().  
+ */ 
+class FastRecursiveLock : private NonCopyable {
+    
+  pthread_mutex_t _mtx;
+
+  /**
+   * @class Attribute
+   *
+   * Utility class to maintain the attribute as long as it is needed.
+   */
+  class Attribute {
+    
+    pthread_mutexattr_t _attr;
+
+  public:
+
+    Attribute() {
+
+      if(pthread_mutexattr_init(&_attr) != 0) {
+        assert(0);
+      }
+      
+      if(pthread_mutexattr_settype(&_attr, PTHREAD_MUTEX_RECURSIVE) != 0) {
+        assert(0);
+      }
+
+    }
+    
+    ~Attribute() {
+
+      if(pthread_mutexattr_destroy(&_attr) != 0) {
+        assert(0);
+      }
+
+    }
+
+    operator pthread_mutexattr_t*() {
+      return &_attr;
+    }
+
+  };
+
+public:
+
+  inline FastRecursiveLock() {
+    
+    static Attribute attr;
+    pthread_mutex_init(&_mtx, (pthread_mutexattr_t*)attr);
+
+  }
+  
+  inline ~FastRecursiveLock() {
+
+    pthread_mutex_destroy(&_mtx);
+
+  }
+  
+  inline void acquire() {
+    
+    pthread_mutex_lock(&_mtx);
+
+  }
+
+  inline void release() {
+    
+    pthread_mutex_unlock(&_mtx);
+    
+  }
+  
+  inline bool tryAcquire(unsigned long timeout=0) {
+
+    return (pthread_mutex_trylock(&_mtx) == 0);
+
+  }
+  
+}; /* FastRecursiveLock */
+
+
+} // namespace ZThread
+
+#endif
-- 
cgit v1.2.3