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| 1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 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 "mojo/edk/system/message_pipe.h" | 5 #include "mojo/edk/system/message_pipe.h" |
| 6 | 6 |
| 7 #include "base/logging.h" | 7 #include "base/logging.h" |
| 8 #include "mojo/edk/system/channel_endpoint.h" | 8 #include "mojo/edk/system/channel_endpoint.h" |
| 9 #include "mojo/edk/system/local_message_pipe_endpoint.h" | 9 #include "mojo/edk/system/local_message_pipe_endpoint.h" |
| 10 #include "mojo/edk/system/message_in_transit.h" | 10 #include "mojo/edk/system/message_in_transit.h" |
| (...skipping 82 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 93 unsigned port, | 93 unsigned port, |
| 94 UserPointer<const void> bytes, | 94 UserPointer<const void> bytes, |
| 95 uint32_t num_bytes, | 95 uint32_t num_bytes, |
| 96 std::vector<DispatcherTransport>* transports, | 96 std::vector<DispatcherTransport>* transports, |
| 97 MojoWriteMessageFlags flags) { | 97 MojoWriteMessageFlags flags) { |
| 98 DCHECK(port == 0 || port == 1); | 98 DCHECK(port == 0 || port == 1); |
| 99 return EnqueueMessageInternal( | 99 return EnqueueMessageInternal( |
| 100 GetPeerPort(port), | 100 GetPeerPort(port), |
| 101 make_scoped_ptr(new MessageInTransit( | 101 make_scoped_ptr(new MessageInTransit( |
| 102 MessageInTransit::kTypeMessagePipeEndpoint, | 102 MessageInTransit::kTypeMessagePipeEndpoint, |
| 103 MessageInTransit::kSubtypeMessagePipeEndpointData, num_bytes, bytes)), | 103 MessageInTransit::kSubtypeMessagePipeEndpointData, |
| 104 num_bytes, |
| 105 bytes)), |
| 104 transports); | 106 transports); |
| 105 } | 107 } |
| 106 | 108 |
| 107 MojoResult MessagePipe::ReadMessage(unsigned port, | 109 MojoResult MessagePipe::ReadMessage(unsigned port, |
| 108 UserPointer<void> bytes, | 110 UserPointer<void> bytes, |
| 109 UserPointer<uint32_t> num_bytes, | 111 UserPointer<uint32_t> num_bytes, |
| 110 DispatcherVector* dispatchers, | 112 DispatcherVector* dispatchers, |
| 111 uint32_t* num_dispatchers, | 113 uint32_t* num_dispatchers, |
| 112 MojoReadMessageFlags flags) { | 114 MojoReadMessageFlags flags) { |
| 113 DCHECK(port == 0 || port == 1); | 115 DCHECK(port == 0 || port == 1); |
| 114 | 116 |
| 115 base::AutoLock locker(lock_); | 117 base::AutoLock locker(lock_); |
| 116 DCHECK(endpoints_[port]); | 118 DCHECK(endpoints_[port]); |
| 117 | 119 |
| 118 return endpoints_[port]->ReadMessage(bytes, num_bytes, dispatchers, | 120 return endpoints_[port]->ReadMessage( |
| 119 num_dispatchers, flags); | 121 bytes, num_bytes, dispatchers, num_dispatchers, flags); |
| 120 } | 122 } |
| 121 | 123 |
| 122 HandleSignalsState MessagePipe::GetHandleSignalsState(unsigned port) const { | 124 HandleSignalsState MessagePipe::GetHandleSignalsState(unsigned port) const { |
| 123 DCHECK(port == 0 || port == 1); | 125 DCHECK(port == 0 || port == 1); |
| 124 | 126 |
| 125 base::AutoLock locker(const_cast<base::Lock&>(lock_)); | 127 base::AutoLock locker(const_cast<base::Lock&>(lock_)); |
| 126 DCHECK(endpoints_[port]); | 128 DCHECK(endpoints_[port]); |
| 127 | 129 |
| 128 return endpoints_[port]->GetHandleSignalsState(); | 130 return endpoints_[port]->GetHandleSignalsState(); |
| 129 } | 131 } |
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| 156 DCHECK(port == 0 || port == 1); | 158 DCHECK(port == 0 || port == 1); |
| 157 | 159 |
| 158 base::AutoLock locker(lock_); | 160 base::AutoLock locker(lock_); |
| 159 DCHECK(endpoints_[port]); | 161 DCHECK(endpoints_[port]); |
| 160 DCHECK_EQ(endpoints_[port]->GetType(), MessagePipeEndpoint::kTypeLocal); | 162 DCHECK_EQ(endpoints_[port]->GetType(), MessagePipeEndpoint::kTypeLocal); |
| 161 | 163 |
| 162 // The local peer is already closed, so just make a |ChannelEndpoint| that'll | 164 // The local peer is already closed, so just make a |ChannelEndpoint| that'll |
| 163 // send the already-queued messages. | 165 // send the already-queued messages. |
| 164 if (!endpoints_[GetPeerPort(port)]) { | 166 if (!endpoints_[GetPeerPort(port)]) { |
| 165 scoped_refptr<ChannelEndpoint> channel_endpoint(new ChannelEndpoint( | 167 scoped_refptr<ChannelEndpoint> channel_endpoint(new ChannelEndpoint( |
| 166 nullptr, 0, static_cast<LocalMessagePipeEndpoint*>( | 168 nullptr, |
| 167 endpoints_[port].get())->message_queue())); | 169 0, |
| 170 static_cast<LocalMessagePipeEndpoint*>(endpoints_[port].get()) |
| 171 ->message_queue())); |
| 168 endpoints_[port]->Close(); | 172 endpoints_[port]->Close(); |
| 169 endpoints_[port].reset(); | 173 endpoints_[port].reset(); |
| 170 return channel_endpoint; | 174 return channel_endpoint; |
| 171 } | 175 } |
| 172 | 176 |
| 173 // TODO(vtl): Allowing this case is a temporary hack. It'll set up a | 177 // TODO(vtl): Allowing this case is a temporary hack. It'll set up a |
| 174 // |MessagePipe| with two proxy endpoints, which will then act as a proxy | 178 // |MessagePipe| with two proxy endpoints, which will then act as a proxy |
| 175 // (rather than trying to connect the two ends directly). | 179 // (rather than trying to connect the two ends directly). |
| 176 DLOG_IF(WARNING, endpoints_[GetPeerPort(port)]->GetType() != | 180 DLOG_IF(WARNING, |
| 177 MessagePipeEndpoint::kTypeLocal) | 181 endpoints_[GetPeerPort(port)]->GetType() != |
| 182 MessagePipeEndpoint::kTypeLocal) |
| 178 << "Direct message pipe passing across multiple channels not yet " | 183 << "Direct message pipe passing across multiple channels not yet " |
| 179 "implemented; will proxy"; | 184 "implemented; will proxy"; |
| 180 | 185 |
| 181 scoped_ptr<MessagePipeEndpoint> old_endpoint(endpoints_[port].Pass()); | 186 scoped_ptr<MessagePipeEndpoint> old_endpoint(endpoints_[port].Pass()); |
| 182 scoped_refptr<ChannelEndpoint> channel_endpoint(new ChannelEndpoint( | 187 scoped_refptr<ChannelEndpoint> channel_endpoint(new ChannelEndpoint( |
| 183 this, port, static_cast<LocalMessagePipeEndpoint*>(old_endpoint.get()) | 188 this, |
| 184 ->message_queue())); | 189 port, |
| 190 static_cast<LocalMessagePipeEndpoint*>(old_endpoint.get()) |
| 191 ->message_queue())); |
| 185 endpoints_[port].reset(new ProxyMessagePipeEndpoint(channel_endpoint.get())); | 192 endpoints_[port].reset(new ProxyMessagePipeEndpoint(channel_endpoint.get())); |
| 186 old_endpoint->Close(); | 193 old_endpoint->Close(); |
| 187 | 194 |
| 188 return channel_endpoint; | 195 return channel_endpoint; |
| 189 } | 196 } |
| 190 | 197 |
| 191 MojoResult MessagePipe::EnqueueMessage(unsigned port, | 198 MojoResult MessagePipe::EnqueueMessage(unsigned port, |
| 192 scoped_ptr<MessageInTransit> message) { | 199 scoped_ptr<MessageInTransit> message) { |
| 193 return EnqueueMessageInternal(port, message.Pass(), nullptr); | 200 return EnqueueMessageInternal(port, message.Pass(), nullptr); |
| 194 } | 201 } |
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| 283 MojoResult MessagePipe::HandleControlMessage( | 290 MojoResult MessagePipe::HandleControlMessage( |
| 284 unsigned /*port*/, | 291 unsigned /*port*/, |
| 285 scoped_ptr<MessageInTransit> message) { | 292 scoped_ptr<MessageInTransit> message) { |
| 286 LOG(WARNING) << "Unrecognized MessagePipe control message subtype " | 293 LOG(WARNING) << "Unrecognized MessagePipe control message subtype " |
| 287 << message->subtype(); | 294 << message->subtype(); |
| 288 return MOJO_RESULT_UNKNOWN; | 295 return MOJO_RESULT_UNKNOWN; |
| 289 } | 296 } |
| 290 | 297 |
| 291 } // namespace system | 298 } // namespace system |
| 292 } // namespace mojo | 299 } // namespace mojo |
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