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Wwise SDK 2018.1.11
AkSyncCaller.h
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1 /*******************************************************************************
2 The content of this file includes portions of the AUDIOKINETIC Wwise Technology
3 released in source code form as part of the SDK installer package.
4 
5 Commercial License Usage
6 
7 Licensees holding valid commercial licenses to the AUDIOKINETIC Wwise Technology
8 may use this file in accordance with the end user license agreement provided
9 with the software or, alternatively, in accordance with the terms contained in a
10 written agreement between you and Audiokinetic Inc.
11 
12 Apache License Usage
13 
14 Alternatively, this file may be used under the Apache License, Version 2.0 (the
15 "Apache License"); you may not use this file except in compliance with the
16 Apache License. You may obtain a copy of the Apache License at
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23 
24  Version: <VERSION> Build: <BUILDNUMBER>
25  Copyright (c) <COPYRIGHTYEAR> Audiokinetic Inc.
26 *******************************************************************************/
27 
28 // AkSyncLoader.h
29 
30 /// \file
31 /// Class for synchronous calls of asynchronous models
32 
33 #ifndef _AK_SYNC_CALLER_H_
34 #define _AK_SYNC_CALLER_H_
35 
37 
38 namespace AK
39 {
40  namespace SoundEngine
41  {
42  /// AkSyncLoader: Init to create a sync event, call the asynchronous method, passing
43  /// it the address of this object as the cookie, then call Wait.
44  class AkSyncCaller
45  {
46  public:
47  /// Initialize.
49  {
50  if ( AKPLATFORM::AkCreateEvent( m_hEvent ) != AK_Success )
51  {
52  AKASSERT( !"Could not create synchronization event" );
53  return AK_Fail;
54  }
55  return AK_Success;
56  }
57 
58  /// Wait until the async function calls its callback.
59  AKRESULT Wait( AKRESULT in_eResult )
60  {
61  if ( in_eResult != AK_Success )
62  {
63  AKPLATFORM::AkDestroyEvent( m_hEvent );
64  return in_eResult;
65  }
66 
67  // Task queueing successful. Block until completion.
68  AKPLATFORM::AkWaitForEvent( m_hEvent );
69  AKPLATFORM::AkDestroyEvent( m_hEvent );
70 
71  return m_eResult;
72  }
73 
74  /// Call this from callback to release blocked thread.
75  inline void Done() { AKPLATFORM::AkSignalEvent( m_hEvent ); }
76 
77  AKRESULT m_eResult; ///< Operation result
78 
79  private:
80  AkEvent m_hEvent; ///< Sync event
81  };
82  }
83 }
84 
85 #endif // _AK_SYNC_CALLER_H_
AKRESULT Init()
Initialize.
Definition: AkSyncCaller.h:48
void AkSignalEvent(const AkEvent &in_event)
Platform Independent Helper
Definition: AkPlatformFuncs.h:109
AKRESULT m_eResult
Operation result
Definition: AkSyncCaller.h:77
The operation was successful.
Definition: AkTypes.h:129
AKRESULT
Standard function call result.
Definition: AkTypes.h:126
void AkDestroyEvent(AkEvent &io_event)
Platform Independent Helper
Definition: AkPlatformFuncs.h:78
Audiokinetic namespace
The operation failed.
Definition: AkTypes.h:130
void AkWaitForEvent(AkEvent &in_event)
Platform Independent Helper
Definition: AkPlatformFuncs.h:98
#define AKASSERT(Condition)
Definition: AkAssert.h:69
AKRESULT AkCreateEvent(AkEvent &out_event)
Platform Independent Helper
Definition: AkPlatformFuncs.h:55
AKRESULT Wait(AKRESULT in_eResult)
Wait until the async function calls its callback.
Definition: AkSyncCaller.h:59
semaphore_t AkEvent
Definition: AkTypes.h:80
void Done()
Call this from callback to release blocked thread.
Definition: AkSyncCaller.h:75