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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 #ifndef MOJO_EDK_SYSTEM_IPC_SUPPORT_H_ | 5 #ifndef MOJO_EDK_SYSTEM_IPC_SUPPORT_H_ |
6 #define MOJO_EDK_SYSTEM_IPC_SUPPORT_H_ | 6 #define MOJO_EDK_SYSTEM_IPC_SUPPORT_H_ |
7 | 7 |
8 #include <memory> | 8 #include <memory> |
9 | 9 |
10 #include "base/callback_forward.h" | 10 #include "base/callback_forward.h" |
11 #include "base/gtest_prod_util.h" | 11 #include "base/gtest_prod_util.h" |
12 #include "mojo/edk/embedder/process_type.h" | 12 #include "mojo/edk/embedder/process_type.h" |
13 #include "mojo/edk/embedder/scoped_platform_handle.h" | |
14 #include "mojo/edk/embedder/slave_info.h" | 13 #include "mojo/edk/embedder/slave_info.h" |
| 14 #include "mojo/edk/platform/scoped_platform_handle.h" |
15 #include "mojo/edk/platform/task_runner.h" | 15 #include "mojo/edk/platform/task_runner.h" |
16 #include "mojo/edk/system/channel_id.h" | 16 #include "mojo/edk/system/channel_id.h" |
17 #include "mojo/edk/system/connection_identifier.h" | 17 #include "mojo/edk/system/connection_identifier.h" |
18 #include "mojo/edk/system/process_identifier.h" | 18 #include "mojo/edk/system/process_identifier.h" |
19 #include "mojo/edk/util/ref_ptr.h" | 19 #include "mojo/edk/util/ref_ptr.h" |
20 #include "mojo/public/cpp/system/macros.h" | 20 #include "mojo/public/cpp/system/macros.h" |
21 | 21 |
22 namespace mojo { | 22 namespace mojo { |
23 | 23 |
24 namespace embedder { | 24 namespace embedder { |
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60 // processes. | 60 // processes. |
61 // | 61 // |
62 // All the (pointer) arguments must remain alive (and, in the case of task | 62 // All the (pointer) arguments must remain alive (and, in the case of task |
63 // runners, continue to process tasks) until |ShutdownOnIOThread()| has been | 63 // runners, continue to process tasks) until |ShutdownOnIOThread()| has been |
64 // called. | 64 // called. |
65 IPCSupport(embedder::PlatformSupport* platform_support, | 65 IPCSupport(embedder::PlatformSupport* platform_support, |
66 embedder::ProcessType process_type, | 66 embedder::ProcessType process_type, |
67 util::RefPtr<platform::TaskRunner>&& delegate_thread_task_runner, | 67 util::RefPtr<platform::TaskRunner>&& delegate_thread_task_runner, |
68 embedder::ProcessDelegate* process_delegate, | 68 embedder::ProcessDelegate* process_delegate, |
69 util::RefPtr<platform::TaskRunner>&& io_thread_task_runner, | 69 util::RefPtr<platform::TaskRunner>&& io_thread_task_runner, |
70 embedder::ScopedPlatformHandle platform_handle); | 70 platform::ScopedPlatformHandle platform_handle); |
71 // Note: This object must be shut down before destruction (see | 71 // Note: This object must be shut down before destruction (see |
72 // |ShutdownOnIOThread()|). | 72 // |ShutdownOnIOThread()|). |
73 ~IPCSupport(); | 73 ~IPCSupport(); |
74 | 74 |
75 // This must be called (exactly once) on the I/O thread before this object is | 75 // This must be called (exactly once) on the I/O thread before this object is |
76 // destroyed (which may happen on any thread). Note: This does *not* call the | 76 // destroyed (which may happen on any thread). Note: This does *not* call the |
77 // process delegate's |OnShutdownComplete()|. | 77 // process delegate's |OnShutdownComplete()|. |
78 void ShutdownOnIOThread(); | 78 void ShutdownOnIOThread(); |
79 | 79 |
80 // Generates a new (unique) connection identifier, for use with | 80 // Generates a new (unique) connection identifier, for use with |
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95 // |callback_thread_task_runner| (if it is non-null) or on the I/O thread. | 95 // |callback_thread_task_runner| (if it is non-null) or on the I/O thread. |
96 // |*channel_id| will be set to the ID for the channel (immediately); the | 96 // |*channel_id| will be set to the ID for the channel (immediately); the |
97 // channel may be destroyed using this ID, but only after the callback has | 97 // channel may be destroyed using this ID, but only after the callback has |
98 // been run. | 98 // been run. |
99 // | 99 // |
100 // TODO(vtl): Add some more channel management functionality to this class. | 100 // TODO(vtl): Add some more channel management functionality to this class. |
101 // Maybe make this callback interface more sane. | 101 // Maybe make this callback interface more sane. |
102 util::RefPtr<MessagePipeDispatcher> ConnectToSlave( | 102 util::RefPtr<MessagePipeDispatcher> ConnectToSlave( |
103 const ConnectionIdentifier& connection_id, | 103 const ConnectionIdentifier& connection_id, |
104 embedder::SlaveInfo slave_info, | 104 embedder::SlaveInfo slave_info, |
105 embedder::ScopedPlatformHandle platform_handle, | 105 platform::ScopedPlatformHandle platform_handle, |
106 const base::Closure& callback, | 106 const base::Closure& callback, |
107 util::RefPtr<platform::TaskRunner>&& callback_thread_task_runner, | 107 util::RefPtr<platform::TaskRunner>&& callback_thread_task_runner, |
108 ChannelId* channel_id); | 108 ChannelId* channel_id); |
109 | 109 |
110 // Called in a slave process to connect it to the master process and thus the | 110 // Called in a slave process to connect it to the master process and thus the |
111 // IPC system, creating a |Channel| and an initial message pipe (return a | 111 // IPC system, creating a |Channel| and an initial message pipe (return a |
112 // dispatcher for the slave's side). See |ConnectToSlave()|, above. | 112 // dispatcher for the slave's side). See |ConnectToSlave()|, above. |
113 // | 113 // |
114 // |callback|, |callback_thread_task_runner|, and |channel_id| are as in | 114 // |callback|, |callback_thread_task_runner|, and |channel_id| are as in |
115 // |ConnectToSlave()|. | 115 // |ConnectToSlave()|. |
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140 // These test |ConnectToSlaveInternal()| and |ConnectToMasterInternal()|. | 140 // These test |ConnectToSlaveInternal()| and |ConnectToMasterInternal()|. |
141 FRIEND_TEST_ALL_PREFIXES(IPCSupportTest, MasterSlaveInternal); | 141 FRIEND_TEST_ALL_PREFIXES(IPCSupportTest, MasterSlaveInternal); |
142 FRIEND_TEST_ALL_PREFIXES(IPCSupportTest, MultiprocessMasterSlaveInternal); | 142 FRIEND_TEST_ALL_PREFIXES(IPCSupportTest, MultiprocessMasterSlaveInternal); |
143 friend void MultiprocessMasterSlaveInternalTestChildTest(); | 143 friend void MultiprocessMasterSlaveInternalTestChildTest(); |
144 | 144 |
145 // Helper for |ConnectToSlave()|. Connects (using the connection manager) to | 145 // Helper for |ConnectToSlave()|. Connects (using the connection manager) to |
146 // the slave using |platform_handle| (a handle to an OS "pipe" between master | 146 // the slave using |platform_handle| (a handle to an OS "pipe" between master |
147 // and slave) and creates a second OS "pipe" between the master and slave | 147 // and slave) and creates a second OS "pipe" between the master and slave |
148 // (returning the master's handle). |*slave_process_identifier| will be set to | 148 // (returning the master's handle). |*slave_process_identifier| will be set to |
149 // the process identifier assigned to the slave. | 149 // the process identifier assigned to the slave. |
150 embedder::ScopedPlatformHandle ConnectToSlaveInternal( | 150 platform::ScopedPlatformHandle ConnectToSlaveInternal( |
151 const ConnectionIdentifier& connection_id, | 151 const ConnectionIdentifier& connection_id, |
152 embedder::SlaveInfo slave_info, | 152 embedder::SlaveInfo slave_info, |
153 embedder::ScopedPlatformHandle platform_handle, | 153 platform::ScopedPlatformHandle platform_handle, |
154 ProcessIdentifier* slave_process_identifier); | 154 ProcessIdentifier* slave_process_identifier); |
155 | 155 |
156 // Helper for |ConnectToMaster()|. Connects (using the connection manager) to | 156 // Helper for |ConnectToMaster()|. Connects (using the connection manager) to |
157 // the master (using the handle to the OS "pipe" that was given to | 157 // the master (using the handle to the OS "pipe" that was given to |
158 // |SlaveConnectionManager::Init()|) and creates a second OS "pipe" between | 158 // |SlaveConnectionManager::Init()|) and creates a second OS "pipe" between |
159 // the master and slave (returning the slave's handle). | 159 // the master and slave (returning the slave's handle). |
160 embedder::ScopedPlatformHandle ConnectToMasterInternal( | 160 platform::ScopedPlatformHandle ConnectToMasterInternal( |
161 const ConnectionIdentifier& connection_id); | 161 const ConnectionIdentifier& connection_id); |
162 | 162 |
163 ConnectionManager* connection_manager() const { | 163 ConnectionManager* connection_manager() const { |
164 return connection_manager_.get(); | 164 return connection_manager_.get(); |
165 } | 165 } |
166 | 166 |
167 // These are all set on construction and reset by |ShutdownOnIOThread()|. | 167 // These are all set on construction and reset by |ShutdownOnIOThread()|. |
168 embedder::ProcessType process_type_; | 168 embedder::ProcessType process_type_; |
169 util::RefPtr<platform::TaskRunner> delegate_thread_task_runner_; | 169 util::RefPtr<platform::TaskRunner> delegate_thread_task_runner_; |
170 embedder::ProcessDelegate* process_delegate_; | 170 embedder::ProcessDelegate* process_delegate_; |
171 util::RefPtr<platform::TaskRunner> io_thread_task_runner_; | 171 util::RefPtr<platform::TaskRunner> io_thread_task_runner_; |
172 | 172 |
173 std::unique_ptr<ConnectionManager> connection_manager_; | 173 std::unique_ptr<ConnectionManager> connection_manager_; |
174 std::unique_ptr<ChannelManager> channel_manager_; | 174 std::unique_ptr<ChannelManager> channel_manager_; |
175 | 175 |
176 MOJO_DISALLOW_COPY_AND_ASSIGN(IPCSupport); | 176 MOJO_DISALLOW_COPY_AND_ASSIGN(IPCSupport); |
177 }; | 177 }; |
178 | 178 |
179 } // namespace system | 179 } // namespace system |
180 } // namespace mojo | 180 } // namespace mojo |
181 | 181 |
182 #endif // MOJO_EDK_SYSTEM_IPC_SUPPORT_H_ | 182 #endif // MOJO_EDK_SYSTEM_IPC_SUPPORT_H_ |
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