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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 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 MOJO_COMMON_HANDLE_WATCHER_H_ | 5 #ifndef MOJO_MESSAGE_PUMP_HANDLE_WATCHER_H_ |
6 #define MOJO_COMMON_HANDLE_WATCHER_H_ | 6 #define MOJO_MESSAGE_PUMP_HANDLE_WATCHER_H_ |
7 | 7 |
8 #include "base/basictypes.h" | 8 #include "base/basictypes.h" |
9 #include "base/callback_forward.h" | 9 #include "base/callback_forward.h" |
10 #include "base/memory/scoped_ptr.h" | 10 #include "base/memory/scoped_ptr.h" |
11 #include "base/run_loop.h" | 11 #include "base/run_loop.h" |
12 #include "mojo/common/mojo_common_export.h" | 12 #include "mojo/message_pump/mojo_message_pump_export.h" |
13 #include "third_party/mojo/src/mojo/public/cpp/system/core.h" | 13 #include "third_party/mojo/src/mojo/public/cpp/system/core.h" |
14 | 14 |
15 namespace base { | 15 namespace base { |
16 class Thread; | 16 class Thread; |
17 } | 17 } |
18 | 18 |
19 namespace mojo { | 19 namespace mojo { |
20 namespace common { | 20 namespace common { |
21 namespace test { | 21 namespace test { |
22 class HandleWatcherTest; | 22 class HandleWatcherTest; |
23 } | 23 } |
24 | 24 |
25 // HandleWatcher is used to asynchronously wait on a handle and notify a Closure | 25 // HandleWatcher is used to asynchronously wait on a handle and notify a Closure |
26 // when the handle is ready, or the deadline has expired. | 26 // when the handle is ready, or the deadline has expired. |
27 class MOJO_COMMON_EXPORT HandleWatcher { | 27 class MOJO_MESSAGE_PUMP_EXPORT HandleWatcher { |
28 public: | 28 public: |
29 HandleWatcher(); | 29 HandleWatcher(); |
30 | 30 |
31 // The destructor implicitly stops listening. See Stop() for details. | 31 // The destructor implicitly stops listening. See Stop() for details. |
32 ~HandleWatcher(); | 32 ~HandleWatcher(); |
33 | 33 |
34 // Starts listening for |handle|. This implicitly invokes Stop(). In other | 34 // Starts listening for |handle|. This implicitly invokes Stop(). In other |
35 // words, Start() performs one asynchronous watch at a time. It is ok to call | 35 // words, Start() performs one asynchronous watch at a time. It is ok to call |
36 // Start() multiple times, but it cancels any existing watches. |callback| is | 36 // Start() multiple times, but it cancels any existing watches. |callback| is |
37 // notified when the handle is ready, invalid or deadline has passed and is | 37 // notified when the handle is ready, invalid or deadline has passed and is |
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54 | 54 |
55 // If non-NULL Start() has been invoked. | 55 // If non-NULL Start() has been invoked. |
56 scoped_ptr<StateBase> state_; | 56 scoped_ptr<StateBase> state_; |
57 | 57 |
58 DISALLOW_COPY_AND_ASSIGN(HandleWatcher); | 58 DISALLOW_COPY_AND_ASSIGN(HandleWatcher); |
59 }; | 59 }; |
60 | 60 |
61 } // namespace common | 61 } // namespace common |
62 } // namespace mojo | 62 } // namespace mojo |
63 | 63 |
64 #endif // MOJO_COMMON_HANDLE_WATCHER_H_ | 64 #endif // MOJO_MESSAGE_PUMP_HANDLE_WATCHER_H_ |
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