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diff --git a/dep/src/zthread/posix/FastLock.h b/dep/src/zthread/posix/FastLock.h
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+/*
+ * 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 __ZTFASTLOCK_H__
+#define __ZTFASTLOCK_H__
+
+#include "zthread/Exceptions.h"
+#include "zthread/NonCopyable.h"
+#include <pthread.h>
+#include <assert.h>
+
+namespace ZThread {
+
+/**
+ * @class FastLock
+ *
+ * @author Eric Crahen <http://www.code-foo.com>
+ * @date <2003-07-16T23:28:07-0400>
+ * @version 2.2.8
+ *
+ * This is the smallest and fastest synchronization object in the library.
+ * It is an implementation of fast mutex, an all or nothing exclusive
+ * lock. It should be used only where you need speed and are willing 
+ * to sacrifice all the state & safety checking provided by the framework
+ * for speed.
+ */ 
+class FastLock : private NonCopyable {
+    
+  pthread_mutex_t _mtx;
+
+ public:
+  
+  /**
+   * Create a new FastLock. No safety or state checks are performed.
+   *
+   * @exception Initialization_Exception - not thrown
+   */
+  inline FastLock() {
+
+    if(pthread_mutex_init(&_mtx, 0) != 0)
+      throw Initialization_Exception();
+
+  }
+  
+  /**
+   * Destroy a FastLock. No safety or state checks are performed.
+   */
+  inline ~FastLock() {
+
+    if(pthread_mutex_destroy(&_mtx) != 0) {
+      assert(0);
+    }
+
+  }
+  
+  /**
+   * Acquire an exclusive lock. No safety or state checks are performed.
+   *
+   * @exception Synchronization_Exception - not thrown
+   */
+  inline void acquire() {
+    
+    if(pthread_mutex_lock(&_mtx) != 0)
+      throw Synchronization_Exception();
+
+  }
+
+  /**
+   * Try to acquire an exclusive lock. No safety or state checks are performed.
+   * This function returns immediately regardless of the value of the timeout
+   *
+   * @param timeout Unused
+   * @return bool
+   * @exception Synchronization_Exception - not thrown
+   */
+  inline bool tryAcquire(unsigned long /*timeout*/=0) {
+
+    return (pthread_mutex_trylock(&_mtx) == 0);
+
+  }
+  
+  /**
+   * Release an exclusive lock. No safety or state checks are performed.
+   * The caller should have already acquired the lock, and release it 
+   * only once.
+   * 
+   * @exception Synchronization_Exception - not thrown
+   */
+  inline void release() {
+    
+    if(pthread_mutex_unlock(&_mtx) != 0)
+      throw Synchronization_Exception();
+
+  }
+  
+  
+}; /* FastLock */
+
+
+};
+
+#endif