kc3-lang/angle/src/compiler/InitializeParseContext.cpp

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• Author : Alok Priyadarshi
  Date : 2013-09-23 14:56:58
  Hash : 8156b6be
  Message : Fixed memory leak associated with TLS. We used to allocate thread-local memory on each compile. If the compile did not happen on the same thread as ShInitialize, we leaked the thread-local memory. It turns out that there is no need to allocate any thread-local memory. This patch cleans up all the unnecessary junk around TLS. BUG=crbug.com/181691 R=kbr@chromium.org Review URL: https://codereview.appspot.com/11679046 Conflicts: src/compiler/ConstantUnion.h src/compiler/ShaderLang.cpp src/compiler/Types.h src/compiler/ValidateLimitations.cpp

• src/compiler/InitializeParseContext.cpp

• //
  // Copyright (c) 2012 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  
  #include "compiler/InitializeParseContext.h"
  
  #include "compiler/osinclude.h"
  
  OS_TLSIndex GlobalParseContextIndex = OS_INVALID_TLS_INDEX;
  
  bool InitializeParseContextIndex()
  {
      assert(GlobalParseContextIndex == OS_INVALID_TLS_INDEX);
  
      GlobalParseContextIndex = OS_AllocTLSIndex();
      return GlobalParseContextIndex != OS_INVALID_TLS_INDEX;
  }
  
  void FreeParseContextIndex()
  {
      assert(GlobalParseContextIndex != OS_INVALID_TLS_INDEX);
  
      OS_FreeTLSIndex(GlobalParseContextIndex);
      GlobalParseContextIndex = OS_INVALID_TLS_INDEX;
  }
  
  void SetGlobalParseContext(TParseContext* context)
  {
      assert(GlobalParseContextIndex != OS_INVALID_TLS_INDEX);
      OS_SetTLSValue(GlobalParseContextIndex, context);
  }
  
  TParseContext* GetGlobalParseContext()
  {
      assert(GlobalParseContextIndex != OS_INVALID_TLS_INDEX);
      return static_cast<TParseContext*>(OS_GetTLSValue(GlobalParseContextIndex));
  }