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1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2006-2008 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 NET_BASE_TEST_COMPLETION_CALLBACK_H_ | 5 #ifndef NET_BASE_TEST_COMPLETION_CALLBACK_H_ |
6 #define NET_BASE_TEST_COMPLETION_CALLBACK_H_ | 6 #define NET_BASE_TEST_COMPLETION_CALLBACK_H_ |
7 #pragma once | 7 #pragma once |
8 | 8 |
9 #include "base/callback.h" | 9 #include "base/callback.h" |
10 #include "base/message_loop.h" | |
11 #include "net/base/completion_callback.h" | |
12 #include "net/base/net_errors.h" | |
13 | 10 |
14 //----------------------------------------------------------------------------- | 11 //----------------------------------------------------------------------------- |
15 // completion callback helper | 12 // completion callback helper |
16 | 13 |
17 // A helper class for completion callbacks, designed to make it easy to run | 14 // A helper class for completion callbacks, designed to make it easy to run |
18 // tests involving asynchronous operations. Just call WaitForResult to wait | 15 // tests involving asynchronous operations. Just call WaitForResult to wait |
19 // for the asynchronous operation to complete. | 16 // for the asynchronous operation to complete. |
20 // | 17 // |
21 // NOTE: Since this runs a message loop to wait for the completion callback, | 18 // NOTE: Since this runs a message loop to wait for the completion callback, |
22 // there could be other side-effects resulting from WaitForResult. For this | 19 // there could be other side-effects resulting from WaitForResult. For this |
23 // reason, this class is probably not ideal for a general application. | 20 // reason, this class is probably not ideal for a general application. |
24 // | 21 // |
25 class TestCompletionCallback : public CallbackRunner< Tuple1<int> > { | 22 class TestCompletionCallback : public CallbackRunner< Tuple1<int> > { |
26 public: | 23 public: |
27 TestCompletionCallback() | 24 TestCompletionCallback(); |
28 : result_(0), | 25 virtual ~TestCompletionCallback(); |
29 have_result_(false), | |
30 waiting_for_result_(false) { | |
31 } | |
32 | 26 |
33 int WaitForResult() { | 27 int WaitForResult(); |
34 DCHECK(!waiting_for_result_); | |
35 while (!have_result_) { | |
36 waiting_for_result_ = true; | |
37 MessageLoop::current()->Run(); | |
38 waiting_for_result_ = false; | |
39 } | |
40 have_result_ = false; // auto-reset for next callback | |
41 return result_; | |
42 } | |
43 | 28 |
44 int GetResult(int result) { | 29 int GetResult(int result); |
45 if (net::ERR_IO_PENDING != result) | |
46 return result; | |
47 return WaitForResult(); | |
48 } | |
49 | 30 |
50 bool have_result() const { return have_result_; } | 31 bool have_result() const { return have_result_; } |
51 | 32 |
52 virtual void RunWithParams(const Tuple1<int>& params) { | 33 virtual void RunWithParams(const Tuple1<int>& params); |
53 result_ = params.a; | |
54 have_result_ = true; | |
55 if (waiting_for_result_) | |
56 MessageLoop::current()->Quit(); | |
57 } | |
58 | 34 |
59 private: | 35 private: |
60 int result_; | 36 int result_; |
61 bool have_result_; | 37 bool have_result_; |
62 bool waiting_for_result_; | 38 bool waiting_for_result_; |
63 }; | 39 }; |
64 | 40 |
65 #endif // NET_BASE_TEST_COMPLETION_CALLBACK_H_ | 41 #endif // NET_BASE_TEST_COMPLETION_CALLBACK_H_ |
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