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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 The Chromium Authors. All rights reserved. | 
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be | 
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. | 
| 4 | 4 | 
| 5 #include "content/browser/mojo/mojo_child_connection.h" | 5 #include "content/browser/mojo/mojo_child_connection.h" | 
| 6 | 6 | 
| 7 #include <stdint.h> | 7 #include <stdint.h> | 
| 8 #include <utility> | 8 #include <utility> | 
| 9 | 9 | 
| 10 #include "base/macros.h" | 10 #include "base/macros.h" | 
| 11 #include "base/strings/stringprintf.h" | 11 #include "base/strings/stringprintf.h" | 
| 12 #include "base/thread_task_runner_handle.h" | 12 #include "base/thread_task_runner_handle.h" | 
| 13 #include "build/build_config.h" | 13 #include "build/build_config.h" | 
| 14 #include "content/public/browser/browser_thread.h" | 14 #include "content/public/browser/browser_thread.h" | 
| 15 #include "content/public/browser/render_process_host.h" | 15 #include "content/public/browser/render_process_host.h" | 
| 16 #include "content/public/browser/render_process_host_observer.h" | 16 #include "content/public/browser/render_process_host_observer.h" | 
| 17 #include "content/public/common/mojo_shell_connection.h" | 17 #include "content/public/common/mojo_shell_connection.h" | 
| 18 #include "ipc/ipc_sender.h" | 18 #include "ipc/ipc_sender.h" | 
| 19 #include "mojo/converters/network/network_type_converters.h" | 19 #include "mojo/converters/network/network_type_converters.h" | 
| 20 #include "mojo/edk/embedder/embedder.h" | 20 #include "mojo/edk/embedder/embedder.h" | 
| 21 #include "mojo/public/cpp/system/message_pipe.h" | 21 #include "mojo/public/cpp/system/message_pipe.h" | 
| 22 #include "mojo/shell/public/cpp/connector.h" | 22 #include "mojo/shell/public/cpp/connector.h" | 
| 23 #include "mojo/shell/public/interfaces/shell.mojom.h" | 23 #include "mojo/shell/public/interfaces/shell.mojom.h" | 
|  | 24 #include "mojo/shell/public/interfaces/shell_client.mojom.h" | 
| 24 | 25 | 
| 25 namespace content { | 26 namespace content { | 
| 26 namespace { | 27 namespace { | 
| 27 | 28 | 
| 28 const char kMojoRenderProcessHostConnection[] = | 29 const char kMojoRenderProcessHostConnection[] = | 
| 29     "mojo_render_process_host_connection"; | 30     "mojo_render_process_host_connection"; | 
| 30 | 31 | 
| 31 class RenderProcessHostConnection : public base::SupportsUserData::Data { | 32 class RenderProcessHostConnection : public base::SupportsUserData::Data { | 
| 32  public: | 33  public: | 
| 33   explicit RenderProcessHostConnection(scoped_ptr<mojo::Connection> connection) | 34   explicit RenderProcessHostConnection(scoped_ptr<mojo::Connection> connection) | 
| (...skipping 50 matching lines...) Expand 10 before | Expand all | Expand 10 after  Loading... | 
| 84 }; | 85 }; | 
| 85 | 86 | 
| 86 }  // namespace | 87 }  // namespace | 
| 87 | 88 | 
| 88 std::string MojoConnectToChild(int child_process_id, | 89 std::string MojoConnectToChild(int child_process_id, | 
| 89                                int instance_id, | 90                                int instance_id, | 
| 90                                RenderProcessHost* render_process_host) { | 91                                RenderProcessHost* render_process_host) { | 
| 91   // Generate a token and create a pipe which is bound to it. This pipe is | 92   // Generate a token and create a pipe which is bound to it. This pipe is | 
| 92   // passed to the shell if one is available. | 93   // passed to the shell if one is available. | 
| 93   std::string pipe_token = mojo::edk::GenerateRandomToken(); | 94   std::string pipe_token = mojo::edk::GenerateRandomToken(); | 
| 94   mojo::ScopedMessagePipeHandle request_pipe = | 95   mojo::ScopedMessagePipeHandle shell_client_pipe = | 
| 95       mojo::edk::CreateParentMessagePipe(pipe_token); | 96       mojo::edk::CreateParentMessagePipe(pipe_token); | 
| 96 | 97 | 
| 97   // Some process types get created before the main message loop. In this case | 98   // Some process types get created before the main message loop. In this case | 
| 98   // the shell request pipe will simply be closed, and the child can detect | 99   // the shell request pipe will simply be closed, and the child can detect | 
| 99   // this. | 100   // this. | 
| 100   if (!MojoShellConnection::Get()) | 101   if (!MojoShellConnection::Get()) | 
| 101     return pipe_token; | 102     return pipe_token; | 
| 102 | 103 | 
| 103   mojo::shell::mojom::ShellClientFactoryPtr factory; | 104   mojo::shell::mojom::ShellClientPtr client; | 
| 104   factory.Bind(mojo::InterfacePtrInfo<mojo::shell::mojom::ShellClientFactory>( | 105   client.Bind(mojo::InterfacePtrInfo<mojo::shell::mojom::ShellClient>( | 
| 105       std::move(request_pipe), 0u)); | 106       std::move(shell_client_pipe), 0u)); | 
| 106   mojo::shell::mojom::PIDReceiverPtr pid_receiver; | 107   mojo::shell::mojom::PIDReceiverPtr pid_receiver; | 
| 107   mojo::shell::mojom::PIDReceiverRequest pid_receiver_request = | 108   mojo::shell::mojom::PIDReceiverRequest pid_receiver_request = | 
| 108       GetProxy(&pid_receiver); | 109       GetProxy(&pid_receiver); | 
| 109   // PIDSender manages its own lifetime. | 110   // PIDSender manages its own lifetime. | 
| 110   new PIDSender(render_process_host, std::move(pid_receiver)); | 111   new PIDSender(render_process_host, std::move(pid_receiver)); | 
| 111 | 112 | 
| 112 | 113 | 
| 113   mojo::Identity target("exe:chrome_renderer", | 114   mojo::Identity target("exe:chrome_renderer", | 
| 114                         mojo::shell::mojom::kInheritUserID, | 115                         mojo::shell::mojom::kInheritUserID, | 
| 115                         base::StringPrintf("%d_%d", child_process_id, | 116                         base::StringPrintf("%d_%d", child_process_id, | 
| 116                                            instance_id)); | 117                                            instance_id)); | 
| 117   mojo::Connector::ConnectParams params(target); | 118   mojo::Connector::ConnectParams params(target); | 
| 118   params.set_client_process_connection(std::move(factory), | 119   params.set_client_process_connection(std::move(client), | 
| 119                                        std::move(pid_receiver_request)); | 120                                        std::move(pid_receiver_request)); | 
| 120   scoped_ptr<mojo::Connection> connection = | 121   scoped_ptr<mojo::Connection> connection = | 
| 121       MojoShellConnection::Get()->GetConnector()->Connect(¶ms); | 122       MojoShellConnection::Get()->GetConnector()->Connect(¶ms); | 
| 122 | 123 | 
| 123   // Store the connection on the RPH so client code can access it later via | 124   // Store the connection on the RPH so client code can access it later via | 
| 124   // GetMojoConnection(). | 125   // GetMojoConnection(). | 
| 125   SetMojoConnection(render_process_host, std::move(connection)); | 126   SetMojoConnection(render_process_host, std::move(connection)); | 
| 126 | 127 | 
| 127   return pipe_token; | 128   return pipe_token; | 
| 128 } | 129 } | 
| 129 | 130 | 
| 130 mojo::Connection* GetMojoConnection(RenderProcessHost* render_process_host) { | 131 mojo::Connection* GetMojoConnection(RenderProcessHost* render_process_host) { | 
| 131   RenderProcessHostConnection* connection = | 132   RenderProcessHostConnection* connection = | 
| 132       static_cast<RenderProcessHostConnection*>( | 133       static_cast<RenderProcessHostConnection*>( | 
| 133           render_process_host->GetUserData(kMojoRenderProcessHostConnection)); | 134           render_process_host->GetUserData(kMojoRenderProcessHostConnection)); | 
| 134   return connection ? connection->get() : nullptr; | 135   return connection ? connection->get() : nullptr; | 
| 135 } | 136 } | 
| 136 | 137 | 
| 137 }  // namespace content | 138 }  // namespace content | 
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