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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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 CONTENT_BROWSER_CROSS_SITE_REQUEST_MANAGER_H_ | 5 #ifndef CONTENT_BROWSER_CROSS_SITE_REQUEST_MANAGER_H_ |
6 #define CONTENT_BROWSER_CROSS_SITE_REQUEST_MANAGER_H_ | 6 #define CONTENT_BROWSER_CROSS_SITE_REQUEST_MANAGER_H_ |
7 | 7 |
8 #include <set> | 8 #include <set> |
9 #include <utility> | 9 #include <utility> |
10 | 10 |
11 #include "base/basictypes.h" | 11 #include "base/basictypes.h" |
12 #include "base/synchronization/lock.h" | 12 #include "base/synchronization/lock.h" |
13 | 13 |
14 template <typename T> struct DefaultSingletonTraits; | 14 template <typename T> struct DefaultSingletonTraits; |
15 | 15 |
16 namespace content { | 16 namespace content { |
17 | 17 |
18 // CrossSiteRequestManager is used to handle bookkeeping for cross-site | 18 // CrossSiteRequestManager is used to handle bookkeeping for cross-site |
19 // requests and responses between the UI and IO threads. Such requests involve | 19 // requests and responses between the UI and IO threads. Such requests involve |
20 // a transition from one RenderViewHost to another within WebContentsImpl, and | 20 // a transition from one RenderFrameHost to another within WebContentsImpl, and |
21 // involve coordination with ResourceDispatcherHost. | 21 // involve coordination with ResourceDispatcherHost. |
22 // | 22 // |
23 // CrossSiteRequestManager is a singleton that may be used on any thread. | 23 // CrossSiteRequestManager is a singleton that may be used on any thread. |
24 // | 24 // |
25 class CrossSiteRequestManager { | 25 class CrossSiteRequestManager { |
26 public: | 26 public: |
27 // Returns the singleton instance. | 27 // Returns the singleton instance. |
28 static CrossSiteRequestManager* GetInstance(); | 28 static CrossSiteRequestManager* GetInstance(); |
29 | 29 |
30 // Returns whether the RenderViewHost specified by the given IDs currently | 30 // Returns whether the RenderFrameHost specified by the given IDs currently |
31 // has a pending cross-site request. If so, we will have to delay the | 31 // has a pending cross-site request. If so, we will have to delay the |
32 // response until the previous RenderViewHost runs its onunload handler. | 32 // response until the previous RenderFrameHost runs its onunload handler. |
33 // Called by ResourceDispatcherHost on the IO thread and RenderViewHost on | 33 // Called by ResourceDispatcherHost on the IO thread and RenderFrameHost on |
34 // the UI thread. | 34 // the UI thread. |
35 bool HasPendingCrossSiteRequest(int renderer_id, int render_view_id); | 35 bool HasPendingCrossSiteRequest(int renderer_id, int render_frame_id); |
36 | 36 |
37 // Sets whether the RenderViewHost specified by the given IDs currently has a | 37 // Sets whether the RenderFrameHost specified by the given IDs currently has a |
38 // pending cross-site request. Called by RenderViewHost on the UI thread. | 38 // pending cross-site request. Called by RenderFrameHost on the UI thread. |
39 void SetHasPendingCrossSiteRequest(int renderer_id, | 39 void SetHasPendingCrossSiteRequest(int renderer_id, |
40 int render_view_id, | 40 int render_frame_id, |
41 bool has_pending); | 41 bool has_pending); |
42 | 42 |
43 private: | 43 private: |
44 friend struct DefaultSingletonTraits<CrossSiteRequestManager>; | 44 friend struct DefaultSingletonTraits<CrossSiteRequestManager>; |
45 typedef std::set<std::pair<int, int> > RenderViewSet; | 45 typedef std::set<std::pair<int, int> > RenderFrameSet; |
46 | 46 |
47 CrossSiteRequestManager(); | 47 CrossSiteRequestManager(); |
48 ~CrossSiteRequestManager(); | 48 ~CrossSiteRequestManager(); |
49 | 49 |
50 // You must acquire this lock before reading or writing any members of this | 50 // You must acquire this lock before reading or writing any members of this |
51 // class. You must not block while holding this lock. | 51 // class. You must not block while holding this lock. |
52 base::Lock lock_; | 52 base::Lock lock_; |
53 | 53 |
54 // Set of (render_process_host_id, render_view_id) pairs of all | 54 // Set of (render_process_host_id, render_frame_id) pairs of all |
55 // RenderViewHosts that have pending cross-site requests. Used to pass | 55 // RenderFrameHosts that have pending cross-site requests. Used to pass |
56 // information about the RenderViewHosts between the UI and IO threads. | 56 // information about the RenderFrameHosts between the UI and IO threads. |
57 RenderViewSet pending_cross_site_views_; | 57 RenderFrameSet pending_cross_site_frames_; |
58 | 58 |
59 DISALLOW_COPY_AND_ASSIGN(CrossSiteRequestManager); | 59 DISALLOW_COPY_AND_ASSIGN(CrossSiteRequestManager); |
60 }; | 60 }; |
61 | 61 |
62 } // namespace content | 62 } // namespace content |
63 | 63 |
64 #endif // CONTENT_BROWSER_CROSS_SITE_REQUEST_MANAGER_H_ | 64 #endif // CONTENT_BROWSER_CROSS_SITE_REQUEST_MANAGER_H_ |
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