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      1 /*-------------------------------------------------------------------------
      2  * drawElements Thread Library
      3  * ---------------------------
      4  *
      5  * Copyright 2014 The Android Open Source Project
      6  *
      7  * Licensed under the Apache License, Version 2.0 (the "License");
      8  * you may not use this file except in compliance with the License.
      9  * You may obtain a copy of the License at
     10  *
     11  *      http://www.apache.org/licenses/LICENSE-2.0
     12  *
     13  * Unless required by applicable law or agreed to in writing, software
     14  * distributed under the License is distributed on an "AS IS" BASIS,
     15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     16  * See the License for the specific language governing permissions and
     17  * limitations under the License.
     18  *
     19  *//*!
     20  * \file
     21  * \brief Win32 implementation of thread-local storage.
     22  *//*--------------------------------------------------------------------*/
     23 
     24 #include "deThreadLocal.h"
     25 
     26 #if (DE_OS == DE_OS_WIN32 || DE_OS == DE_OS_WINCE)
     27 
     28 #define VC_EXTRALEAN
     29 #define WIN32_LEAN_AND_MEAN
     30 #include <windows.h>
     31 
     32 DE_STATIC_ASSERT(sizeof(deThreadLocal) >= sizeof(DWORD));
     33 
     34 deThreadLocal deThreadLocal_create (void)
     35 {
     36 	DWORD handle = TlsAlloc();
     37 	if (handle == TLS_OUT_OF_INDEXES)
     38 		return 0;
     39 	return (deThreadLocal)handle;
     40 }
     41 
     42 void deThreadLocal_destroy (deThreadLocal threadLocal)
     43 {
     44 	DE_ASSERT(threadLocal != 0);
     45 	TlsFree((DWORD)threadLocal);
     46 }
     47 
     48 void* deThreadLocal_get (deThreadLocal threadLocal)
     49 {
     50 	DE_ASSERT(threadLocal != 0);
     51 	return TlsGetValue((DWORD)threadLocal);
     52 }
     53 
     54 void deThreadLocal_set (deThreadLocal threadLocal, void* value)
     55 {
     56 	DE_ASSERT(threadLocal != 0);
     57 	TlsSetValue((DWORD)threadLocal, value);
     58 }
     59 
     60 #endif /* DE_OS */
     61