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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 | 5 |
6 /** | 6 /** |
7 * Defines the PPB_MessageLoop interface. | 7 * Defines the PPB_MessageLoop interface. |
8 */ | 8 */ |
9 label Chrome { | 9 label Chrome { |
10 M25 = 1.0 | 10 M25 = 1.0 |
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51 * (You can also create the message loop resource on the background thread, | 51 * (You can also create the message loop resource on the background thread, |
52 * but then the main thread will have no reference to it should you want to | 52 * but then the main thread will have no reference to it should you want to |
53 * call PostWork()). | 53 * call PostWork()). |
54 * | 54 * |
55 * | 55 * |
56 * THREAD HANDLING | 56 * THREAD HANDLING |
57 * | 57 * |
58 * The main thread has an implicitly created message loop. The main thread is | 58 * The main thread has an implicitly created message loop. The main thread is |
59 * the thread where PPP_InitializeModule and PPP_Instance functions are called. | 59 * the thread where PPP_InitializeModule and PPP_Instance functions are called. |
60 * You can retrieve a reference to this message loop by calling | 60 * You can retrieve a reference to this message loop by calling |
61 * GetForMainThread() or, if your code is on the main thread, | 61 * GetForMainThread() or, if your code is on the main thread, GetCurrent() will |
62 * GetForCurrentThread() will also work. | 62 * also work. |
63 * | 63 * |
64 * Some special threads created by the system can not have message loops. In | 64 * Some special threads created by the system can not have message loops. In |
65 * particular, the background thread created for audio processing has this | 65 * particular, the background thread created for audio processing has this |
66 * requirement because it's intended to be highly responsive to keep up with | 66 * requirement because it's intended to be highly responsive to keep up with |
67 * the realtime requirements of audio processing. You can not make PPAPI calls | 67 * the realtime requirements of audio processing. You can not make PPAPI calls |
68 * from these threads. | 68 * from these threads. |
69 * | 69 * |
70 * Once you associate a message loop with a thread, you don't have to keep a | 70 * Once you associate a message loop with a thread, you don't have to keep a |
71 * reference to it. The system will hold a reference to the message loop for as | 71 * reference to it. The system will hold a reference to the message loop for as |
72 * long as the thread is running. The current message loop can be retrieved | 72 * long as the thread is running. The current message loop can be retrieved |
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262 * | 262 * |
263 * @return | 263 * @return |
264 * - PP_OK: The request to quit was successfully posted. | 264 * - PP_OK: The request to quit was successfully posted. |
265 * - PP_ERROR_BADRESOURCE: The message loop was invalid. | 265 * - PP_ERROR_BADRESOURCE: The message loop was invalid. |
266 * - PP_ERROR_WRONG_THREAD: You are attempting to quit the main thread. | 266 * - PP_ERROR_WRONG_THREAD: You are attempting to quit the main thread. |
267 * The main thread's message loop is managed by the system and can't be | 267 * The main thread's message loop is managed by the system and can't be |
268 * quit. | 268 * quit. |
269 */ | 269 */ |
270 int32_t PostQuit([in] PP_Resource message_loop, PP_Bool should_destroy); | 270 int32_t PostQuit([in] PP_Resource message_loop, PP_Bool should_destroy); |
271 }; | 271 }; |
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