1 files changed, 0 insertions, 174 deletions
diff --git a/dep/src/zthread/vanilla/DualMutexRecursiveLock.h b/dep/src/zthread/vanilla/DualMutexRecursiveLock.h
deleted file mode 100644
index 22f10b9bc04..00000000000
--- a/dep/src/zthread/vanilla/DualMutexRecursiveLock.h
+++ /dev/null
@@ -1,174 +0,0 @@
-/*
- * 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 "../FastLock.h"
-#include "../ThreadOps.h"
-#include <assert.h>
-
-namespace ZThread {
-
-/**
- * @class FastRecursiveLock
- *
- * @author Eric Crahen <http://www.code-foo.com>
- * @date <2003-07-16T23:31:09-0400>
- * @version 2.2.8
- *
- * This is a vanilla FastRecursiveLock implementation for a
- * system that doesn't provide recurisve locks. This implementation
- * is based on using a pair of mutexes, because of this, it performs
- * roughly the same as a spin lock would.
- */
-class FastRecursiveLock : private NonCopyable {
-
-  //! Lock for blocking
-  FastLock _blockingLock;
-
-  //! Serialize state
-  FastLock _stateLock;
-
-  //! Owner
-  ThreadOps _owner;
-
-  //! Count
-  volatile unsigned int _count;
-
- public:
-
-  inline FastRecursiveLock() : _owner(ThreadOps::INVALID), _count(0) { }
-
-  inline ~FastRecursiveLock() {
-
-    assert(_owner == ThreadOps::INVALID);
-    assert(_count == 0);
-
-  }
-
-  void acquire() {
-
-    ThreadOps self(ThreadOps::self());
-
-    // Try to lock the blocking mutex first
-    bool wasLocked = _blockingLock.tryAcquire();
-    if(!wasLocked) {
-
-      // Otherwise, grab the lock for the state
-      _stateLock.acquire();
-
-      wasLocked = (_owner == self);
-      if(wasLocked)
-        _count++;
-
-      _stateLock.release();
-
-      if(wasLocked)
-        return;
-
-      // Try to be cooperative
-      ThreadOps::yield();
-      _blockingLock.acquire();
-
-    }
-
-    // Serialze access to the state
-    _stateLock.acquire();
-
-    // Take ownership
-    assert(_owner == ThreadOps::INVALID || _owner == self);
-
-    _owner = self;
-    _count++;
-
-    _stateLock.release();
-
-  }
-
-
-  bool tryAcquire(unsigned long timeout = 0) {
-
-    ThreadOps self(ThreadOps::self());
-
-    // Try to lock the blocking mutex first
-    bool wasLocked = _blockingLock.tryAcquire();
-    if(!wasLocked) {
-
-      // Otherwise, grab the lock for the state
-      _stateLock.acquire();
-
-      wasLocked = (_owner == self);
-      if(wasLocked)
-        _count++;
-
-      _stateLock.release();
-
-      return wasLocked;
-
-    }
-
-    // Serialze access to the state
-    _stateLock.acquire();
-
-    // Take ownership
-    assert(_owner == ThreadOps::INVALID || _owner == self);
-
-    _owner = self;
-    _count++;
-
-    _stateLock.release();
-
-    return true;
-
-  }
-
-
-  void release() {
-
-    // Assume that release is only used by the owning thread, as it
-    // should be.
-    assert(_count != 0);
-    assert(_owner == ThreadOps::self());
-
-    _stateLock.acquire();
-
-    // If the lock was owned and the count has reached 0, give up
-    // ownership and release the blocking lock
-    if(--_count == 0) {
-
-      _owner = ThreadOps::INVALID;
-      _blockingLock.release();
-
-    }
-
-    _stateLock.release();
-
-  }
-
-
-}; /* FastRecursiveLock */
-
-} // namespace ZThread
-
-#endif
-