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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 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 #include <stddef.h> | 5 #include <stddef.h> |
6 #include <windows.h> | 6 #include <windows.h> |
7 #include <mmsystem.h> | 7 #include <mmsystem.h> |
8 | 8 |
9 #include "base/event_recorder.h" | 9 #include "base/event_recorder.h" |
10 #include "base/file_util.h" | 10 #include "base/file_util.h" |
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42 } | 42 } |
43 | 43 |
44 bool EventRecorder::StartRecording(const FilePath& filename) { | 44 bool EventRecorder::StartRecording(const FilePath& filename) { |
45 if (journal_hook_ != NULL) | 45 if (journal_hook_ != NULL) |
46 return false; | 46 return false; |
47 if (is_recording_ || is_playing_) | 47 if (is_recording_ || is_playing_) |
48 return false; | 48 return false; |
49 | 49 |
50 // Open the recording file. | 50 // Open the recording file. |
51 DCHECK(!file_); | 51 DCHECK(!file_); |
52 file_ = OpenFile(filename, "wb+"); | 52 file_ = file_util::OpenFile(filename, "wb+"); |
53 if (!file_) { | 53 if (!file_) { |
54 DLOG(ERROR) << "EventRecorder could not open log file"; | 54 DLOG(ERROR) << "EventRecorder could not open log file"; |
55 return false; | 55 return false; |
56 } | 56 } |
57 | 57 |
58 // Set the faster clock, if possible. | 58 // Set the faster clock, if possible. |
59 ::timeBeginPeriod(1); | 59 ::timeBeginPeriod(1); |
60 | 60 |
61 // Set the recording hook. JOURNALRECORD can only be used as a global hook. | 61 // Set the recording hook. JOURNALRECORD can only be used as a global hook. |
62 journal_hook_ = ::SetWindowsHookEx(WH_JOURNALRECORD, StaticRecordWndProc, | 62 journal_hook_ = ::SetWindowsHookEx(WH_JOURNALRECORD, StaticRecordWndProc, |
63 GetModuleHandle(NULL), 0); | 63 GetModuleHandle(NULL), 0); |
64 if (!journal_hook_) { | 64 if (!journal_hook_) { |
65 DLOG(ERROR) << "EventRecorder Record Hook failed"; | 65 DLOG(ERROR) << "EventRecorder Record Hook failed"; |
66 CloseFile(file_); | 66 file_util::CloseFile(file_); |
67 return false; | 67 return false; |
68 } | 68 } |
69 | 69 |
70 is_recording_ = true; | 70 is_recording_ = true; |
71 return true; | 71 return true; |
72 } | 72 } |
73 | 73 |
74 void EventRecorder::StopRecording() { | 74 void EventRecorder::StopRecording() { |
75 if (is_recording_) { | 75 if (is_recording_) { |
76 DCHECK(journal_hook_ != NULL); | 76 DCHECK(journal_hook_ != NULL); |
77 | 77 |
78 if (!::UnhookWindowsHookEx(journal_hook_)) { | 78 if (!::UnhookWindowsHookEx(journal_hook_)) { |
79 DLOG(ERROR) << "EventRecorder Unhook failed"; | 79 DLOG(ERROR) << "EventRecorder Unhook failed"; |
80 // Nothing else we can really do here. | 80 // Nothing else we can really do here. |
81 return; | 81 return; |
82 } | 82 } |
83 | 83 |
84 ::timeEndPeriod(1); | 84 ::timeEndPeriod(1); |
85 | 85 |
86 DCHECK(file_ != NULL); | 86 DCHECK(file_ != NULL); |
87 CloseFile(file_); | 87 file_util::CloseFile(file_); |
88 file_ = NULL; | 88 file_ = NULL; |
89 | 89 |
90 journal_hook_ = NULL; | 90 journal_hook_ = NULL; |
91 is_recording_ = false; | 91 is_recording_ = false; |
92 } | 92 } |
93 } | 93 } |
94 | 94 |
95 bool EventRecorder::StartPlayback(const FilePath& filename) { | 95 bool EventRecorder::StartPlayback(const FilePath& filename) { |
96 if (journal_hook_ != NULL) | 96 if (journal_hook_ != NULL) |
97 return false; | 97 return false; |
98 if (is_recording_ || is_playing_) | 98 if (is_recording_ || is_playing_) |
99 return false; | 99 return false; |
100 | 100 |
101 // Open the recording file. | 101 // Open the recording file. |
102 DCHECK(!file_); | 102 DCHECK(!file_); |
103 file_ = OpenFile(filename, "rb"); | 103 file_ = file_util::OpenFile(filename, "rb"); |
104 if (!file_) { | 104 if (!file_) { |
105 DLOG(ERROR) << "EventRecorder Playback could not open log file"; | 105 DLOG(ERROR) << "EventRecorder Playback could not open log file"; |
106 return false; | 106 return false; |
107 } | 107 } |
108 // Read the first event from the record. | 108 // Read the first event from the record. |
109 if (fread(&playback_msg_, sizeof(EVENTMSG), 1, file_) != 1) { | 109 if (fread(&playback_msg_, sizeof(EVENTMSG), 1, file_) != 1) { |
110 DLOG(ERROR) << "EventRecorder Playback has no records!"; | 110 DLOG(ERROR) << "EventRecorder Playback has no records!"; |
111 CloseFile(file_); | 111 file_util::CloseFile(file_); |
112 return false; | 112 return false; |
113 } | 113 } |
114 | 114 |
115 // Set the faster clock, if possible. | 115 // Set the faster clock, if possible. |
116 ::timeBeginPeriod(1); | 116 ::timeBeginPeriod(1); |
117 | 117 |
118 // Playback time is tricky. When playing back, we read a series of events, | 118 // Playback time is tricky. When playing back, we read a series of events, |
119 // each with timeouts. Simply subtracting the delta between two timers will | 119 // each with timeouts. Simply subtracting the delta between two timers will |
120 // lead to fast playback (about 2x speed). The API has two events, one | 120 // lead to fast playback (about 2x speed). The API has two events, one |
121 // which advances to the next event (HC_SKIP), and another that requests the | 121 // which advances to the next event (HC_SKIP), and another that requests the |
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143 void EventRecorder::StopPlayback() { | 143 void EventRecorder::StopPlayback() { |
144 if (is_playing_) { | 144 if (is_playing_) { |
145 DCHECK(journal_hook_ != NULL); | 145 DCHECK(journal_hook_ != NULL); |
146 | 146 |
147 if (!::UnhookWindowsHookEx(journal_hook_)) { | 147 if (!::UnhookWindowsHookEx(journal_hook_)) { |
148 DLOG(ERROR) << "EventRecorder Unhook failed"; | 148 DLOG(ERROR) << "EventRecorder Unhook failed"; |
149 // Nothing else we can really do here. | 149 // Nothing else we can really do here. |
150 } | 150 } |
151 | 151 |
152 DCHECK(file_ != NULL); | 152 DCHECK(file_ != NULL); |
153 CloseFile(file_); | 153 file_util::CloseFile(file_); |
154 file_ = NULL; | 154 file_ = NULL; |
155 | 155 |
156 ::timeEndPeriod(1); | 156 ::timeEndPeriod(1); |
157 | 157 |
158 journal_hook_ = NULL; | 158 journal_hook_ = NULL; |
159 is_playing_ = false; | 159 is_playing_ = false; |
160 } | 160 } |
161 } | 161 } |
162 | 162 |
163 // Windows callback hook for the recorder. | 163 // Windows callback hook for the recorder. |
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249 // indicating that the message is not removed from the message queue after | 249 // indicating that the message is not removed from the message queue after |
250 // PeekMessage processing. | 250 // PeekMessage processing. |
251 case HC_NOREMOVE: | 251 case HC_NOREMOVE: |
252 break; | 252 break; |
253 } | 253 } |
254 | 254 |
255 return CallNextHookEx(journal_hook_, nCode, wParam, lParam); | 255 return CallNextHookEx(journal_hook_, nCode, wParam, lParam); |
256 } | 256 } |
257 | 257 |
258 } // namespace base | 258 } // namespace base |
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