ppapi/examples/threading/threading.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "ppapi/c/pp_errors.h"
   6 #include "ppapi/cpp/input_event.h"
   7 #include "ppapi/cpp/instance.h"
   8 #include "ppapi/cpp/module.h"
   9 #include "ppapi/utility/completion_callback_factory.h"
  10 #include "ppapi/utility/threading/simple_thread.h"
  11
  12 class MyInstance : public pp::Instance {
  13  public:
  14   MyInstance(PP_Instance instance) : pp::Instance(instance) {
  15     thread_ = new pp::SimpleThread(this);
  16     factory_.Initialize(this);
  17   }
  18
  19   virtual ~MyInstance() {
  20     delete thread_;
  21   }
  22
  23   virtual bool Init(uint32_t argc, const char* argn[], const char* argv[]) {
  24     thread_->Start();
  25     thread_->message_loop().PostWork(
  26         factory_.NewCallback(&MyInstance::CallOnBackground));
  27     return true;
  28   }
  29
  30   virtual void DidChangeView(const pp::View& view) {
  31   }
  32
  33  private:
  34   void CallOnBackground(int32_t result) {
  35   }
  36
  37   pp::CompletionCallbackFactory<MyInstance> factory_;
  38
  39   pp::SimpleThread* thread_;
  40 };
  41
  42
  43 class MyModule : public pp::Module {
  44  public:
  45   MyModule() : pp::Module() {}
  46   virtual ~MyModule() {}
  47
  48   virtual pp::Instance* CreateInstance(PP_Instance instance) {
  49     return new MyInstance(instance);
  50   }
  51 };
  52
  53 namespace pp {
  54
  55 // Factory function for your specialization of the Module object.
  56 Module* CreateModule() {
  57   return new MyModule();
  58 }
  59
  60 }  // namespace pp