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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 | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef MOJO_PUBLIC_CPP_UTILITY_RUN_LOOP_HANDLER_H_ | |
6 #define MOJO_PUBLIC_CPP_UTILITY_RUN_LOOP_HANDLER_H_ | |
7 | |
8 #include <mojo/result.h> | |
9 #include <stdint.h> | |
10 | |
11 #include "mojo/public/cpp/system/handle.h" | |
12 | |
13 namespace mojo { | |
14 | |
15 // Used by RunLoop to notify when a handle is either ready or has become | |
16 // invalid. | |
17 class RunLoopHandler { | |
18 public: | |
19 using Id = uint64_t; | |
20 | |
21 // Called when wait for the handle is ready (i.e., waiting yields | |
22 // MOJO_RESULT_OK). | |
23 virtual void OnHandleReady(Id id) = 0; | |
24 | |
25 // Called when waiting for the handle is no longer valid (i.e., waiting yields | |
26 // the error |result|). This is also called with MOJO_RESULT_ABORTED if the | |
27 // RunLoop is destroyed. | |
28 virtual void OnHandleError(Id id, MojoResult result) = 0; | |
29 | |
30 protected: | |
31 virtual ~RunLoopHandler() {} | |
32 }; | |
33 | |
34 } // namespace mojo | |
35 | |
36 #endif // MOJO_PUBLIC_CPP_UTILITY_RUN_LOOP_HANDLER_H_ | |
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