Modify the PPB_Audio_Shared code for NaCl.

ppapi/shared_impl/ppb_audio_shared.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef PPAPI_SHARED_IMPL_PPB_AUDIO_SHARED_H_
 #define PPAPI_SHARED_IMPL_PPB_AUDIO_SHARED_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "base/shared_memory.h"
 #include "base/sync_socket.h"
 #include "base/threading/simple_thread.h"
 #include "ppapi/c/ppb_audio.h"
 #include "ppapi/shared_impl/resource.h"
 #include "ppapi/thunk/ppb_audio_api.h"
 
+#if defined(OS_NACL)
+#include "native_client/src/untrusted/irt/irt_ppapi.h"
+#endif
+
 namespace ppapi {
 
 // Implements the logic to map shared memory and run the audio thread signaled
 // from the sync socket. Both the proxy and the renderer implementation use
 // this code.
 class PPAPI_SHARED_EXPORT PPB_Audio_Shared
     : public thunk::PPB_Audio_API,
       public base::DelegateSimpleThread::Delegate {
  public:
   PPB_Audio_Shared();
@@ skipping 21 matching lines @@
   void SetStartPlaybackState();
   void SetStopPlaybackState();
 
   // Sets the shared memory and socket handles. This will automatically start
   // playback if we're currently set to play.
   void SetStreamInfo(PP_Instance instance,
                      base::SharedMemoryHandle shared_memory_handle,
                      size_t shared_memory_size,
                      base::SyncSocket::Handle socket_handle);
 
+#if defined(OS_NACL)
+  // NaCl has a special API for IRT code to create threads that can call back
+  // into user code.
+  static void SetThreadFunctions(const struct PP_ThreadFunctions* functions);
+#endif
  private:
   // Starts execution of the audio thread.
   void StartThread();
 
   // Stop execution of the audio thread.
   void StopThread();
 
   // DelegateSimpleThread::Delegate implementation. Run on the audio thread.
   virtual void Run();
 
   // True if playing the stream.
   bool playing_;
 
   // Socket used to notify us when audio is ready to accept new samples. This
   // pointer is created in StreamCreated().
   scoped_ptr<base::CancelableSyncSocket> socket_;
 
   // Sample buffer in shared memory. This pointer is created in
   // StreamCreated(). The memory is only mapped when the audio thread is
   // created.
   scoped_ptr<base::SharedMemory> shared_memory_;
 
   // The size of the sample buffer in bytes.
   size_t shared_memory_size_;
 
+#if !defined(OS_NACL)
   // When the callback is set, this thread is spawned for calling it.
   scoped_ptr<base::DelegateSimpleThread> audio_thread_;
+#else
+  uintptr_t thread_id_;
+  bool thread_active_;
+
+  static void CallRun(void* self);
+#endif
 
   // Callback to call when audio is ready to accept new samples.
   PPB_Audio_Callback callback_;
 
   // User data pointer passed verbatim to the callback function.
   void* user_data_;
 
   DISALLOW_COPY_AND_ASSIGN(PPB_Audio_Shared);
 };
 
 }  // namespace ppapi
 
 #endif  // PPAPI_SHARED_IMPL_PPB_AUDIO_SHARED_H_