ppapi/nacl_irt/ppapi_dispatcher.h

   1 // Copyright 2014 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 PPAPI_NACL_IRT_PPAPI_DISPATCHER_H_
   6 #define PPAPI_NACL_IRT_PPAPI_DISPATCHER_H_
   7
   8 #include <map>
   9 #include <set>
  10 #include <string>
  11
  12 #include "base/files/file.h"
  13 #include "base/memory/ref_counted.h"
  14 #include "base/process/process_handle.h"
  15 #include "ipc/ipc_listener.h"
  16 #include "ipc/ipc_platform_file.h"
  17 #include "ipc/ipc_sender.h"
  18 #include "ppapi/c/pp_instance.h"
  19 #include "ppapi/c/trusted/ppb_browser_font_trusted.h"
  20 #include "ppapi/proxy/connection.h"
  21 #include "ppapi/proxy/plugin_dispatcher.h"
  22 #include "ppapi/proxy/plugin_proxy_delegate.h"
  23
  24 struct PP_BrowserFont_Trusted_Description;
  25
  26 namespace base {
  27 class SingleThreadTaskRunner;
  28 class WaitableEvent;
  29 }  // namespace base
  30
  31 namespace IPC {
  32 class Message;
  33 class SyncChannel;
  34 }  // namespace IPC
  35
  36 namespace ppapi {
  37
  38 struct PpapiNaClPluginArgs;
  39 struct Preferences;
  40
  41 // This class manages communication between the plugin and the browser, and
  42 // manages the PluginDispatcher instances for communication between the plugin
  43 // and the renderer.
  44 class PpapiDispatcher : public proxy::PluginDispatcher::PluginDelegate,
  45                         public proxy::PluginProxyDelegate,
  46                         public IPC::Listener,
  47                         public IPC::Sender {
  48  public:
  49   PpapiDispatcher(scoped_refptr<base::SingleThreadTaskRunner> io_task_runner,
  50                   base::WaitableEvent* shutdown_event,
  51                   int browser_ipc_fd,
  52                   int renderer_ipc_fd);
  53
  54   // PluginDispatcher::PluginDelegate implementation.
  55   base::SingleThreadTaskRunner* GetIPCTaskRunner() override;
  56   base::WaitableEvent* GetShutdownEvent() override;
  57   IPC::PlatformFileForTransit ShareHandleWithRemote(
  58       base::PlatformFile handle,
  59       base::ProcessId peer_pid,
  60       bool should_close_source) override;
  61   base::SharedMemoryHandle ShareSharedMemoryHandleWithRemote(
  62       const base::SharedMemoryHandle& handle,
  63       base::ProcessId remote_pid) override;
  64   std::set<PP_Instance>* GetGloballySeenInstanceIDSet() override;
  65   uint32 Register(proxy::PluginDispatcher* plugin_dispatcher) override;
  66   void Unregister(uint32 plugin_dispatcher_id) override;
  67
  68   // PluginProxyDelegate implementation.
  69   IPC::Sender* GetBrowserSender() override;
  70   std::string GetUILanguage() override;
  71   void PreCacheFont(const void* logfontw) override;
  72   void SetActiveURL(const std::string& url) override;
  73   PP_Resource CreateBrowserFont(proxy::Connection connection,
  74                                 PP_Instance instance,
  75                                 const PP_BrowserFont_Trusted_Description& desc,
  76                                 const Preferences& prefs) override;
  77
  78   // IPC::Listener implementation.
  79   bool OnMessageReceived(const IPC::Message& message) override;
  80   void OnChannelError() override;
  81
  82   // IPC::Sender implementation
  83   bool Send(IPC::Message* message) override;
  84
  85  private:
  86   void OnMsgInitializeNaClDispatcher(const PpapiNaClPluginArgs& args);
  87   void OnPluginDispatcherMessageReceived(const IPC::Message& msg);
  88
  89   std::set<PP_Instance> instances_;
  90   std::map<uint32, proxy::PluginDispatcher*> plugin_dispatchers_;
  91   uint32 next_plugin_dispatcher_id_;
  92
  93   scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
  94   base::WaitableEvent* shutdown_event_;
  95   int renderer_ipc_fd_;
  96   scoped_ptr<IPC::SyncChannel> channel_;
  97 };
  98
  99 }  // namespace ppapi
 100
 101 #endif  // PPAPI_NACL_IRT_PPAPI_DISPATCHER_H_