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1 // Copyright (c) 2008 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 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 #ifndef CHROME_BROWSER_GREASEMONKEY_MASTER_H__ | 5 #ifndef CHROME_BROWSER_GREASEMONKEY_MASTER_H__ |
6 #define CHROME_BROWSER_GREASEMONKEY_MASTER_H__ | 6 #define CHROME_BROWSER_GREASEMONKEY_MASTER_H__ |
7 | 7 |
8 #include "base/directory_watcher.h" | 8 #include "base/directory_watcher.h" |
9 #include "base/process.h" | 9 #include "base/process.h" |
10 #include "base/scoped_ptr.h" | 10 #include "base/scoped_ptr.h" |
11 #include "base/shared_memory.h" | 11 #include "base/shared_memory.h" |
12 | 12 |
13 class MessageLoop; | 13 class MessageLoop; |
14 | 14 |
15 // Manages a segment of shared memory that contains the Greasemonkey scripts the | 15 // Manages a segment of shared memory that contains the Greasemonkey scripts the |
16 // user has installed. Lives on the UI thread. | 16 // user has installed. Lives on the UI thread. |
17 class GreasemonkeyMaster : public base::RefCounted<GreasemonkeyMaster>, | 17 class GreasemonkeyMaster : public base::RefCounted<GreasemonkeyMaster>, |
18 public DirectoryWatcher::Delegate { | 18 public DirectoryWatcher::Delegate { |
19 public: | 19 public: |
20 // For testability, the constructor takes the MessageLoop to run the | 20 // For testability, the constructor takes the MessageLoop to run the |
21 // script-reloading worker on as well as the path the scripts live in. | 21 // script-reloading worker on as well as the path the scripts live in. |
22 // These are normally the file thread and DIR_USER_SCRIPTS. | 22 // These are normally the file thread and DIR_USER_SCRIPTS. |
23 GreasemonkeyMaster(MessageLoop* worker, const FilePath& script_dir); | 23 GreasemonkeyMaster(MessageLoop* worker, const FilePath& script_dir); |
24 ~GreasemonkeyMaster(); | 24 ~GreasemonkeyMaster(); |
25 | 25 |
26 // Creates a handle to the shared memory that can be used in the specified | |
27 // process. | |
28 bool ShareToProcess(ProcessHandle process, SharedMemoryHandle* new_handle); | |
29 | |
30 // Gets the segment of shared memory for the scripts. | 26 // Gets the segment of shared memory for the scripts. |
31 SharedMemory* GetSharedMemory() const { | 27 SharedMemory* GetSharedMemory() const { |
32 return shared_memory_.get(); | 28 return shared_memory_.get(); |
33 } | 29 } |
34 | 30 |
35 // Called by the script reloader when new scripts have been loaded. | 31 // Called by the script reloader when new scripts have been loaded. |
36 void NewScriptsAvailable(SharedMemory* handle); | 32 void NewScriptsAvailable(SharedMemory* handle); |
37 | 33 |
38 // Return true if we have any scripts ready. | 34 // Return true if we have any scripts ready. |
39 bool ScriptsReady() const { return shared_memory_.get() != NULL; } | 35 bool ScriptsReady() const { return shared_memory_.get() != NULL; } |
(...skipping 27 matching lines...) Expand all Loading... |
67 | 63 |
68 // If the script directory is modified while we're rescanning it, we note | 64 // If the script directory is modified while we're rescanning it, we note |
69 // that we're currently mid-scan and then start over again once the scan | 65 // that we're currently mid-scan and then start over again once the scan |
70 // finishes. This boolean tracks whether another scan is pending. | 66 // finishes. This boolean tracks whether another scan is pending. |
71 bool pending_scan_; | 67 bool pending_scan_; |
72 | 68 |
73 DISALLOW_COPY_AND_ASSIGN(GreasemonkeyMaster); | 69 DISALLOW_COPY_AND_ASSIGN(GreasemonkeyMaster); |
74 }; | 70 }; |
75 | 71 |
76 #endif // CHROME_BROWSER_GREASEMONKEY_MASTER_H__ | 72 #endif // CHROME_BROWSER_GREASEMONKEY_MASTER_H__ |
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