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1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2006-2008 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 "build/build_config.h" | 5 #include "build/build_config.h" |
6 | 6 |
7 #if defined(OS_WIN) | 7 #if defined(OS_WIN) |
8 #include <windows.h> | 8 #include <windows.h> |
9 #endif | 9 #endif |
10 #include <stack> | 10 #include <stack> |
11 | 11 |
12 #include "base/logging.h" | 12 #include "base/logging.h" |
13 #include "base/waitable_event.h" | 13 #include "base/waitable_event.h" |
14 #include "chrome/common/ipc_sync_message.h" | 14 #include "chrome/common/ipc_sync_message.h" |
15 | 15 |
16 namespace IPC { | 16 namespace IPC { |
17 | 17 |
18 uint32 SyncMessage::next_id_ = 0; | 18 uint32 SyncMessage::next_id_ = 0; |
19 #define kSyncMessageHeaderSize 4 | 19 #define kSyncMessageHeaderSize 4 |
20 | 20 |
21 #if defined(OS_WIN) | |
22 // TODO(playmobil): reinstantiate once ObjectWatcher is ported. | |
23 // A dummy handle used by EnableMessagePumping. | |
24 base::WaitableEvent* dummy_event = new base::WaitableEvent(true, true); | 21 base::WaitableEvent* dummy_event = new base::WaitableEvent(true, true); |
25 #endif | |
26 | 22 |
27 SyncMessage::SyncMessage( | 23 SyncMessage::SyncMessage( |
28 int32 routing_id, | 24 int32 routing_id, |
29 uint16 type, | 25 uint16 type, |
30 PriorityValue priority, | 26 PriorityValue priority, |
31 MessageReplyDeserializer* deserializer) | 27 MessageReplyDeserializer* deserializer) |
32 : Message(routing_id, type, priority), | 28 : Message(routing_id, type, priority), |
33 deserializer_(deserializer), | 29 deserializer_(deserializer), |
34 pump_messages_event_(NULL) | 30 pump_messages_event_(NULL) |
35 { | 31 { |
36 set_sync(); | 32 set_sync(); |
37 set_unblock(true); | 33 set_unblock(true); |
38 | 34 |
39 // Add synchronous message data before the message payload. | 35 // Add synchronous message data before the message payload. |
40 SyncHeader header; | 36 SyncHeader header; |
41 header.message_id = ++next_id_; | 37 header.message_id = ++next_id_; |
42 WriteSyncHeader(this, header); | 38 WriteSyncHeader(this, header); |
43 } | 39 } |
44 | 40 |
45 MessageReplyDeserializer* SyncMessage::GetReplyDeserializer() { | 41 MessageReplyDeserializer* SyncMessage::GetReplyDeserializer() { |
46 MessageReplyDeserializer* rv = deserializer_; | 42 MessageReplyDeserializer* rv = deserializer_; |
47 DCHECK(rv); | 43 DCHECK(rv); |
48 deserializer_ = NULL; | 44 deserializer_ = NULL; |
49 return rv; | 45 return rv; |
50 } | 46 } |
51 | 47 |
52 #if defined(OS_WIN) | |
53 // TODO(playmobil): reinstantiate once ObjectWatcher is ported. | |
54 void SyncMessage::EnableMessagePumping() { | 48 void SyncMessage::EnableMessagePumping() { |
55 DCHECK(!pump_messages_event_); | 49 DCHECK(!pump_messages_event_); |
56 set_pump_messages_event(dummy_event); | 50 set_pump_messages_event(dummy_event); |
57 } | 51 } |
58 #endif // defined(OS_WIN) | |
59 | 52 |
60 bool SyncMessage::IsMessageReplyTo(const Message& msg, int request_id) { | 53 bool SyncMessage::IsMessageReplyTo(const Message& msg, int request_id) { |
61 if (!msg.is_reply()) | 54 if (!msg.is_reply()) |
62 return false; | 55 return false; |
63 | 56 |
64 return GetMessageId(msg) == request_id; | 57 return GetMessageId(msg) == request_id; |
65 } | 58 } |
66 | 59 |
67 void* SyncMessage::GetDataIterator(const Message* msg) { | 60 void* SyncMessage::GetDataIterator(const Message* msg) { |
68 void* iter = const_cast<char*>(msg->payload()); | 61 void* iter = const_cast<char*>(msg->payload()); |
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124 return true; | 117 return true; |
125 } | 118 } |
126 | 119 |
127 | 120 |
128 bool MessageReplyDeserializer::SerializeOutputParameters(const Message& msg) { | 121 bool MessageReplyDeserializer::SerializeOutputParameters(const Message& msg) { |
129 return SerializeOutputParameters(msg, SyncMessage::GetDataIterator(&msg)); | 122 return SerializeOutputParameters(msg, SyncMessage::GetDataIterator(&msg)); |
130 } | 123 } |
131 | 124 |
132 } // namespace IPC | 125 } // namespace IPC |
133 | 126 |
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