Merge of select changes from TI OpenCL 01.01.08.03 from git.ti.com/ti-opencl/hostTI_01_01_08_03_Merge

Including:
- Use of the Loki library v 0.1.7 for C++ Singleton implementation.
- Updated Platform object to be a Singleton class instance.
- Better handling of MemObject management with concurrent threads.
- Events: added CL_EXEC_STATUS_ERROR_FOR_EVENTS_IN_WAIT_LIST error code.
- MapImageEvent() fixes.
- KernelEvent() fixes around retaining/releasing objects.
- CopyBufferRectEvent() fixes.
- ReadWriteBufferRectEvent() fixes.

Revalidating Shamrock with these changes resulted in 12 more Khronos
conformance tests passing in test_basic, test_buffers, and test_events,
and no regressions.

Signed-off-by: Gil Pitney <gil.pitney@linaro.org>

1 files changed, 80 insertions, 0 deletions

diff --git a/src/core/u_concurrent_set.h b/src/core/u_concurrent_set.h
new file mode 100644
index 0000000..c2767c9
--- /dev/null
+++ b/src/core/u_concurrent_set.h
@@ -0,0 +1,80 @@
+/******************************************************************************
+ * Copyright (c) 2013-2014, Texas Instruments Incorporated - http://www.ti.com/
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions are met:
+ *       * Redistributions of source code must retain the above copyright
+ *         notice, this list of conditions and the following disclaimer.
+ *       * Redistributions in binary form must reproduce the above copyright
+ *         notice, this list of conditions and the following disclaimer in the
+ *         documentation and/or other materials provided with the distribution.
+ *       * Neither the name of Texas Instruments Incorporated nor the
+ *         names of its contributors may be used to endorse or promote products
+ *         derived from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ *   AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ *   IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ *   ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ *   LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ *   CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ *   SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ *   INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ *   CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ *   ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ *   THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+/**************************************************************************//**
+*
+*  @file    u_concurrent_set.h
+*  @brief   TI implementation class that implements a thread safe set.
+*
+******************************************************************************/
+#ifndef _U_CONCURRENT_SET_H_
+#define _U_CONCURRENT_SET_H_
+
+#include <iostream>
+#include <set>
+#include "u_lockable.h"
+
+/**************************************************************************//**
+* @class concurrent_set
+*
+* @brief A thread safe set implementation
+*
+* @details This implementation wraps a standard stl set with some locking
+*          capability to make the member functions mutually exclusive
+*          regions.  In derives from the class Lockable which defines a type
+*          Lock that can be used to define a type in a scope.  The result will
+*          be that the remainder of the scope (or until unlock is called) is a
+*          mutex.
+*
+******************************************************************************/
+template<typename T>
+class concurrent_set : public Lockable
+{
+public:
+    concurrent_set() : S() {}
+    ~concurrent_set() {}
+
+    void insert (T const data) { Lock lock(this); S.insert(data); }
+    void erase  (T data)       { Lock lock(this); S.erase(data);  }
+    bool memberp(T data) const
+    { Lock lock(this); return S.find(data) != S.end(); }
+
+    /*-------------------------------------------------------------------------
+    * The class's data
+    *------------------------------------------------------------------------*/
+private:
+    std::set<T> S;        //!< standard stl set
+
+    /*-------------------------------------------------------------------------
+    * Prevent copy construction and assignment
+    *------------------------------------------------------------------------*/
+private:
+    concurrent_set(const concurrent_set&);
+    concurrent_set& operator=(const concurrent_set&);
+};
+
+#endif //_U_CONCURRENT_SET_H_