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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 PPAPI_PROXY_PPB_MESSAGE_LOOP_PROXY_H_ | 5 #ifndef PPAPI_PROXY_PPB_MESSAGE_LOOP_PROXY_H_ |
| 6 #define PPAPI_PROXY_PPB_MESSAGE_LOOP_PROXY_H_ | 6 #define PPAPI_PROXY_PPB_MESSAGE_LOOP_PROXY_H_ |
| 7 | 7 |
| 8 #include "base/basictypes.h" | 8 #include "base/basictypes.h" |
| 9 #include "base/bind.h" | 9 #include "base/bind.h" |
| 10 #include "base/memory/ref_counted.h" | 10 #include "base/memory/ref_counted.h" |
| 11 #include "base/memory/scoped_ptr.h" | 11 #include "base/memory/scoped_ptr.h" |
| 12 #include "base/message_loop/message_loop.h" | 12 #include "base/message_loop/message_loop.h" |
| 13 #include "base/single_thread_task_runner.h" |
| 13 #include "ppapi/proxy/interface_proxy.h" | 14 #include "ppapi/proxy/interface_proxy.h" |
| 14 #include "ppapi/proxy/ppapi_proxy_export.h" | 15 #include "ppapi/proxy/ppapi_proxy_export.h" |
| 15 #include "ppapi/shared_impl/ppb_message_loop_shared.h" | 16 #include "ppapi/shared_impl/ppb_message_loop_shared.h" |
| 16 #include "ppapi/thunk/ppb_message_loop_api.h" | 17 #include "ppapi/thunk/ppb_message_loop_api.h" |
| 17 | 18 |
| 18 struct PPB_MessageLoop_1_0; | 19 struct PPB_MessageLoop_1_0; |
| 19 | 20 |
| 20 namespace ppapi { | 21 namespace ppapi { |
| 21 namespace proxy { | 22 namespace proxy { |
| 22 | 23 |
| (...skipping 13 matching lines...) Expand all Loading... |
| 36 int32_t Run() override; | 37 int32_t Run() override; |
| 37 int32_t PostWork(PP_CompletionCallback callback, int64_t delay_ms) override; | 38 int32_t PostWork(PP_CompletionCallback callback, int64_t delay_ms) override; |
| 38 int32_t PostQuit(PP_Bool should_destroy) override; | 39 int32_t PostQuit(PP_Bool should_destroy) override; |
| 39 | 40 |
| 40 static MessageLoopResource* GetCurrent(); | 41 static MessageLoopResource* GetCurrent(); |
| 41 void DetachFromThread(); | 42 void DetachFromThread(); |
| 42 bool is_main_thread_loop() const { | 43 bool is_main_thread_loop() const { |
| 43 return is_main_thread_loop_; | 44 return is_main_thread_loop_; |
| 44 } | 45 } |
| 45 | 46 |
| 46 const scoped_refptr<base::MessageLoopProxy>& message_loop_proxy() { | 47 const scoped_refptr<base::SingleThreadTaskRunner>& task_runner() { |
| 47 return loop_proxy_; | 48 return task_runner_; |
| 48 } | 49 } |
| 49 | 50 |
| 50 void set_currently_handling_blocking_message(bool handling_blocking_message) { | 51 void set_currently_handling_blocking_message(bool handling_blocking_message) { |
| 51 currently_handling_blocking_message_ = handling_blocking_message; | 52 currently_handling_blocking_message_ = handling_blocking_message; |
| 52 } | 53 } |
| 53 | 54 |
| 54 private: | 55 private: |
| 55 struct TaskInfo { | 56 struct TaskInfo { |
| 56 tracked_objects::Location from_here; | 57 tracked_objects::Location from_here; |
| 57 base::Closure closure; | 58 base::Closure closure; |
| 58 int64 delay_ms; | 59 int64 delay_ms; |
| 59 }; | 60 }; |
| 60 | 61 |
| 61 // Returns true if the object is associated with the current thread. | 62 // Returns true if the object is associated with the current thread. |
| 62 bool IsCurrent() const; | 63 bool IsCurrent() const; |
| 63 | 64 |
| 64 // MessageLoopShared implementation. | 65 // MessageLoopShared implementation. |
| 65 // | 66 // |
| 66 // Handles posting to the message loop if there is one, or the pending queue | 67 // Handles posting to the message loop if there is one, or the pending queue |
| 67 // if there isn't. | 68 // if there isn't. |
| 68 // NOTE: The given closure will be run *WITHOUT* acquiring the Proxy lock. | 69 // NOTE: The given closure will be run *WITHOUT* acquiring the Proxy lock. |
| 69 // This only makes sense for user code and completely thread-safe | 70 // This only makes sense for user code and completely thread-safe |
| 70 // proxy operations (e.g., MessageLoop::QuitClosure). | 71 // proxy operations (e.g., MessageLoop::QuitClosure). |
| 71 void PostClosure(const tracked_objects::Location& from_here, | 72 void PostClosure(const tracked_objects::Location& from_here, |
| 72 const base::Closure& closure, | 73 const base::Closure& closure, |
| 73 int64 delay_ms) override; | 74 int64 delay_ms) override; |
| 74 base::MessageLoopProxy* GetMessageLoopProxy() override; | 75 base::SingleThreadTaskRunner* GetTaskRunner() override; |
| 75 bool CurrentlyHandlingBlockingMessage() override; | 76 bool CurrentlyHandlingBlockingMessage() override; |
| 76 | 77 |
| 77 // TLS destructor function. | 78 // TLS destructor function. |
| 78 static void ReleaseMessageLoop(void* value); | 79 static void ReleaseMessageLoop(void* value); |
| 79 | 80 |
| 80 // Created when we attach to the current thread, since MessageLoop assumes | 81 // Created when we attach to the current thread, since MessageLoop assumes |
| 81 // that it's created on the thread it will run on. NULL for the main thread | 82 // that it's created on the thread it will run on. NULL for the main thread |
| 82 // loop, since that's owned by somebody else. This is needed for Run and Quit. | 83 // loop, since that's owned by somebody else. This is needed for Run and Quit. |
| 83 // Any time we post tasks, we should post them using loop_proxy_. | 84 // Any time we post tasks, we should post them using task_runner_. |
| 84 scoped_ptr<base::MessageLoop> loop_; | 85 scoped_ptr<base::MessageLoop> loop_; |
| 85 scoped_refptr<base::MessageLoopProxy> loop_proxy_; | 86 scoped_refptr<base::SingleThreadTaskRunner> task_runner_; |
| 86 | 87 |
| 87 // Number of invocations of Run currently on the stack. | 88 // Number of invocations of Run currently on the stack. |
| 88 int nested_invocations_; | 89 int nested_invocations_; |
| 89 | 90 |
| 90 // Set to true when the message loop is destroyed to prevent forther | 91 // Set to true when the message loop is destroyed to prevent forther |
| 91 // posting of work. | 92 // posting of work. |
| 92 bool destroyed_; | 93 bool destroyed_; |
| 93 | 94 |
| 94 // Set to true if all message loop invocations should exit and that the | 95 // Set to true if all message loop invocations should exit and that the |
| 95 // loop should be destroyed once it reaches the outermost Run invocation. | 96 // loop should be destroyed once it reaches the outermost Run invocation. |
| (...skipping 19 matching lines...) Expand all Loading... |
| 115 static const PPB_MessageLoop_1_0* GetInterface(); | 116 static const PPB_MessageLoop_1_0* GetInterface(); |
| 116 | 117 |
| 117 private: | 118 private: |
| 118 DISALLOW_COPY_AND_ASSIGN(PPB_MessageLoop_Proxy); | 119 DISALLOW_COPY_AND_ASSIGN(PPB_MessageLoop_Proxy); |
| 119 }; | 120 }; |
| 120 | 121 |
| 121 } // namespace proxy | 122 } // namespace proxy |
| 122 } // namespace ppapi | 123 } // namespace ppapi |
| 123 | 124 |
| 124 #endif // PPAPI_PROXY_PPB_MESSAGE_LOOP_PROXY_H_ | 125 #endif // PPAPI_PROXY_PPB_MESSAGE_LOOP_PROXY_H_ |
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