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Side by Side Diff: content/common/resource_dispatcher.h

Issue 10662005: Use IPC::Sender and IPC::Listener in content. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Created 8 years, 6 months ago
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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2011 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 // See http://dev.chromium.org/developers/design-documents/multi-process-resourc e-loading 5 // See http://dev.chromium.org/developers/design-documents/multi-process-resourc e-loading
6 6
7 #ifndef CONTENT_COMMON_RESOURCE_DISPATCHER_H_ 7 #ifndef CONTENT_COMMON_RESOURCE_DISPATCHER_H_
8 #define CONTENT_COMMON_RESOURCE_DISPATCHER_H_ 8 #define CONTENT_COMMON_RESOURCE_DISPATCHER_H_
9 #pragma once 9 #pragma once
10 10
11 #include <deque> 11 #include <deque>
12 #include <string> 12 #include <string>
13 13
14 #include "base/hash_tables.h" 14 #include "base/hash_tables.h"
15 #include "base/memory/linked_ptr.h" 15 #include "base/memory/linked_ptr.h"
16 #include "base/memory/weak_ptr.h" 16 #include "base/memory/weak_ptr.h"
17 #include "base/shared_memory.h" 17 #include "base/shared_memory.h"
18 #include "base/time.h" 18 #include "base/time.h"
19 #include "content/common/content_export.h" 19 #include "content/common/content_export.h"
20 #include "ipc/ipc_channel.h" 20 #include "ipc/ipc_listener.h"
21 #include "ipc/ipc_sender.h"
21 #include "webkit/glue/resource_loader_bridge.h" 22 #include "webkit/glue/resource_loader_bridge.h"
22 23
23 namespace content { 24 namespace content {
24 class ResourceDispatcherDelegate; 25 class ResourceDispatcherDelegate;
25 struct ResourceResponseHead; 26 struct ResourceResponseHead;
26 } 27 }
27 28
28 // This class serves as a communication interface between the 29 // This class serves as a communication interface between the
29 // ResourceDispatcherHost in the browser process and the ResourceLoaderBridge in 30 // ResourceDispatcherHost in the browser process and the ResourceLoaderBridge in
30 // the child process. It can be used from any child process. 31 // the child process. It can be used from any child process.
31 class CONTENT_EXPORT ResourceDispatcher : public IPC::Channel::Listener { 32 class CONTENT_EXPORT ResourceDispatcher : public IPC::Listener {
32 public: 33 public:
33 explicit ResourceDispatcher(IPC::Message::Sender* sender); 34 explicit ResourceDispatcher(IPC::Sender* sender);
34 virtual ~ResourceDispatcher(); 35 virtual ~ResourceDispatcher();
35 36
36 // IPC::Channel::Listener implementation. 37 // IPC::Listener implementation.
37 virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE; 38 virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
38 39
39 // Creates a ResourceLoaderBridge for this type of dispatcher, this is so 40 // Creates a ResourceLoaderBridge for this type of dispatcher, this is so
40 // this can be tested regardless of the ResourceLoaderBridge::Create 41 // this can be tested regardless of the ResourceLoaderBridge::Create
41 // implementation. 42 // implementation.
42 webkit_glue::ResourceLoaderBridge* CreateBridge( 43 webkit_glue::ResourceLoaderBridge* CreateBridge(
43 const webkit_glue::ResourceLoaderBridge::RequestInfo& request_info); 44 const webkit_glue::ResourceLoaderBridge::RequestInfo& request_info);
44 45
45 // Adds a request from the pending_requests_ list, returning the new 46 // Adds a request from the pending_requests_ list, returning the new
46 // requests' ID 47 // requests' ID
47 int AddPendingRequest(webkit_glue::ResourceLoaderBridge::Peer* callback, 48 int AddPendingRequest(webkit_glue::ResourceLoaderBridge::Peer* callback,
48 ResourceType::Type resource_type, 49 ResourceType::Type resource_type,
49 const GURL& request_url); 50 const GURL& request_url);
50 51
51 // Removes a request from the pending_requests_ list, returning true if the 52 // Removes a request from the pending_requests_ list, returning true if the
52 // request was found and removed. 53 // request was found and removed.
53 bool RemovePendingRequest(int request_id); 54 bool RemovePendingRequest(int request_id);
54 55
55 // Cancels a request in the pending_requests_ list. 56 // Cancels a request in the pending_requests_ list.
56 void CancelPendingRequest(int routing_id, int request_id); 57 void CancelPendingRequest(int routing_id, int request_id);
57 58
58 IPC::Message::Sender* message_sender() const { 59 IPC::Sender* message_sender() const {
59 return message_sender_; 60 return message_sender_;
60 } 61 }
61 62
62 // Toggles the is_deferred attribute for the specified request. 63 // Toggles the is_deferred attribute for the specified request.
63 void SetDefersLoading(int request_id, bool value); 64 void SetDefersLoading(int request_id, bool value);
64 65
65 // This does not take ownership of the delegate. It is expected that the 66 // This does not take ownership of the delegate. It is expected that the
66 // delegate have a longer lifetime than the ResourceDispatcher. 67 // delegate have a longer lifetime than the ResourceDispatcher.
67 void set_delegate(content::ResourceDispatcherDelegate* delegate) { 68 void set_delegate(content::ResourceDispatcherDelegate* delegate) {
68 delegate_ = delegate; 69 delegate_ = delegate;
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155 // handle in it that we should cleanup it up nicely. This method accepts any 156 // handle in it that we should cleanup it up nicely. This method accepts any
156 // message and determine whether the message is 157 // message and determine whether the message is
157 // ViewHostMsg_Resource_DataReceived and clean up the shared memory handle. 158 // ViewHostMsg_Resource_DataReceived and clean up the shared memory handle.
158 static void ReleaseResourcesInDataMessage(const IPC::Message& message); 159 static void ReleaseResourcesInDataMessage(const IPC::Message& message);
159 160
160 // Iterate through a message queue and clean up the messages by calling 161 // Iterate through a message queue and clean up the messages by calling
161 // ReleaseResourcesInDataMessage and removing them from the queue. Intended 162 // ReleaseResourcesInDataMessage and removing them from the queue. Intended
162 // for use on deferred message queues that are no longer needed. 163 // for use on deferred message queues that are no longer needed.
163 static void ReleaseResourcesInMessageQueue(MessageQueue* queue); 164 static void ReleaseResourcesInMessageQueue(MessageQueue* queue);
164 165
165 IPC::Message::Sender* message_sender_; 166 IPC::Sender* message_sender_;
166 167
167 // All pending requests issued to the host 168 // All pending requests issued to the host
168 PendingRequestList pending_requests_; 169 PendingRequestList pending_requests_;
169 170
170 base::WeakPtrFactory<ResourceDispatcher> weak_factory_; 171 base::WeakPtrFactory<ResourceDispatcher> weak_factory_;
171 172
172 content::ResourceDispatcherDelegate* delegate_; 173 content::ResourceDispatcherDelegate* delegate_;
173 174
174 DISALLOW_COPY_AND_ASSIGN(ResourceDispatcher); 175 DISALLOW_COPY_AND_ASSIGN(ResourceDispatcher);
175 }; 176 };
176 177
177 #endif // CONTENT_COMMON_RESOURCE_DISPATCHER_H_ 178 #endif // CONTENT_COMMON_RESOURCE_DISPATCHER_H_
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