00001 /******************************************************************************* 00002 The content of this file includes portions of the AUDIOKINETIC Wwise Technology 00003 released in source code form as part of the SDK installer package. 00004 00005 Commercial License Usage 00006 00007 Licensees holding valid commercial licenses to the AUDIOKINETIC Wwise Technology 00008 may use this file in accordance with the end user license agreement provided 00009 with the software or, alternatively, in accordance with the terms contained in a 00010 written agreement between you and Audiokinetic Inc. 00011 00012 Apache License Usage 00013 00014 Alternatively, this file may be used under the Apache License, Version 2.0 (the 00015 "Apache License"); you may not use this file except in compliance with the 00016 Apache License. You may obtain a copy of the Apache License at 00017 http://www.apache.org/licenses/LICENSE-2.0. 00018 00019 Unless required by applicable law or agreed to in writing, software distributed 00020 under the Apache License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES 00021 OR CONDITIONS OF ANY KIND, either express or implied. See the Apache License for 00022 the specific language governing permissions and limitations under the License. 00023 00024 Version: <VERSION> Build: <BUILDNUMBER> 00025 Copyright (c) <COPYRIGHTYEAR> Audiokinetic Inc. 00026 *******************************************************************************/ 00027 00028 // AkSyncLoader.h 00029 00030 /// \file 00031 /// Class for synchronous calls of asynchronous models 00032 00033 #ifndef _AK_SYNC_CALLER_H_ 00034 #define _AK_SYNC_CALLER_H_ 00035 00036 #include <AK/Tools/Common/AkPlatformFuncs.h> 00037 00038 namespace AK 00039 { 00040 namespace SoundEngine 00041 { 00042 /// AkSyncLoader: Init to create a sync event, call the asynchronous method, passing 00043 /// it the address of this object as the cookie, then call Wait. 00044 class AkSyncCaller 00045 { 00046 public: 00047 /// Initialize. 00048 AKRESULT Init() 00049 { 00050 if ( AKPLATFORM::AkCreateEvent( m_hEvent ) != AK_Success ) 00051 { 00052 AKASSERT( !"Could not create synchronization event" ); 00053 return AK_Fail; 00054 } 00055 return AK_Success; 00056 } 00057 00058 /// Wait until the async function calls its callback. 00059 AKRESULT Wait( AKRESULT in_eResult ) 00060 { 00061 if ( in_eResult != AK_Success ) 00062 { 00063 AKPLATFORM::AkDestroyEvent( m_hEvent ); 00064 return in_eResult; 00065 } 00066 00067 // Task queueing successful. Block until completion. 00068 AKPLATFORM::AkWaitForEvent( m_hEvent ); 00069 AKPLATFORM::AkDestroyEvent( m_hEvent ); 00070 00071 return m_eResult; 00072 } 00073 00074 /// Call this from callback to release blocked thread. 00075 inline void Done() { AKPLATFORM::AkSignalEvent( m_hEvent ); } 00076 00077 AKRESULT m_eResult; ///< Operation result 00078 00079 private: 00080 AkEvent m_hEvent; ///< Sync event 00081 }; 00082 } 00083 } 00084 00085 #endif // _AK_SYNC_CALLER_H_
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