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      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 #ifndef COMPONENTS_NACL_BROWSER_NACL_BROKER_HOST_WIN_H_
      6 #define COMPONENTS_NACL_BROWSER_NACL_BROKER_HOST_WIN_H_
      7 
      8 #include <string>
      9 
     10 #include "base/basictypes.h"
     11 #include "base/memory/scoped_ptr.h"
     12 #include "base/process/process.h"
     13 #include "content/public/browser/browser_child_process_host_delegate.h"
     14 
     15 namespace content {
     16 class BrowserChildProcessHost;
     17 }
     18 
     19 namespace nacl {
     20 
     21 class NaClBrokerHost : public content::BrowserChildProcessHostDelegate {
     22  public:
     23   NaClBrokerHost();
     24   ~NaClBrokerHost();
     25 
     26   // This function starts the broker process. It needs to be called
     27   // before loaders can be launched.
     28   bool Init();
     29 
     30   // Send a message to the broker process, causing it to launch
     31   // a Native Client loader process.
     32   bool LaunchLoader(const std::string& loader_channel_id);
     33 
     34   bool LaunchDebugExceptionHandler(int32 pid,
     35                                    base::ProcessHandle process_handle,
     36                                    const std::string& startup_info);
     37 
     38   // Stop the broker process.
     39   void StopBroker();
     40 
     41   // Returns true if the process has been asked to terminate. If true, this
     42   // object should no longer be used; it will eventually be destroyed by
     43   // BrowserChildProcessHostImpl::OnChildDisconnected()
     44   bool IsTerminating() { return is_terminating_; }
     45 
     46  private:
     47   // Handler for NaClProcessMsg_LoaderLaunched message
     48   void OnLoaderLaunched(const std::string& loader_channel_id,
     49                         base::ProcessHandle handle);
     50   // Handler for NaClProcessMsg_DebugExceptionHandlerLaunched message
     51   void OnDebugExceptionHandlerLaunched(int32 pid, bool success);
     52 
     53   // BrowserChildProcessHostDelegate implementation:
     54   virtual bool OnMessageReceived(const IPC::Message& msg);
     55 
     56   scoped_ptr<content::BrowserChildProcessHost> process_;
     57   bool is_terminating_;
     58 
     59   DISALLOW_COPY_AND_ASSIGN(NaClBrokerHost);
     60 };
     61 
     62 }  // namespace nacl
     63 
     64 #endif  // COMPONENTS_NACL_BROWSER_NACL_BROKER_HOST_WIN_H_
     65