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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 "base/threading/watchdog.h" | 5 #include "base/threading/watchdog.h" |
6 | 6 |
7 #include "base/compiler_specific.h" | 7 #include "base/compiler_specific.h" |
8 #include "base/lazy_instance.h" | 8 #include "base/lazy_instance.h" |
9 #include "base/logging.h" | 9 #include "base/logging.h" |
10 #include "base/threading/platform_thread.h" | 10 #include "base/threading/platform_thread.h" |
11 | 11 |
12 namespace base { | 12 namespace base { |
13 | 13 |
14 namespace { | 14 namespace { |
15 | 15 |
16 // When the debugger breaks (when we alarm), all the other alarms that are | 16 // When the debugger breaks (when we alarm), all the other alarms that are |
17 // armed will expire (also alarm). To diminish this effect, we track any | 17 // armed will expire (also alarm). To diminish this effect, we track any |
18 // delay due to debugger breaks, and we *try* to adjust the effective start | 18 // delay due to debugger breaks, and we *try* to adjust the effective start |
19 // time of other alarms to step past the debugging break. | 19 // time of other alarms to step past the debugging break. |
20 // Without this safety net, any alarm will typically trigger a host of follow | 20 // Without this safety net, any alarm will typically trigger a host of follow |
21 // on alarms from callers that specify old times. | 21 // on alarms from callers that specify old times. |
22 | 22 |
23 // Lock for access of static data... | 23 // Lock for access of static data... |
24 LazyInstance<Lock, LeakyLazyInstanceTraits<Lock> > g_static_lock( | 24 LazyInstance<Lock, LeakyLazyInstanceTraits<Lock> > g_static_lock = |
25 LINKER_INITIALIZED); | 25 LAZY_INSTANCE_INITIALIZER; |
26 | 26 |
27 // When did we last alarm and get stuck (for a while) in a debugger? | 27 // When did we last alarm and get stuck (for a while) in a debugger? |
28 TimeTicks g_last_debugged_alarm_time; | 28 TimeTicks g_last_debugged_alarm_time; |
29 | 29 |
30 // How long did we sit on a break in the debugger? | 30 // How long did we sit on a break in the debugger? |
31 TimeDelta g_last_debugged_alarm_delay; | 31 TimeDelta g_last_debugged_alarm_delay; |
32 | 32 |
33 } // namespace | 33 } // namespace |
34 | 34 |
35 // Start thread running in a Disarmed state. | 35 // Start thread running in a Disarmed state. |
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150 } | 150 } |
151 | 151 |
152 // static | 152 // static |
153 void Watchdog::ResetStaticData() { | 153 void Watchdog::ResetStaticData() { |
154 AutoLock lock(*g_static_lock.Pointer()); | 154 AutoLock lock(*g_static_lock.Pointer()); |
155 g_last_debugged_alarm_time = TimeTicks(); | 155 g_last_debugged_alarm_time = TimeTicks(); |
156 g_last_debugged_alarm_delay = TimeDelta(); | 156 g_last_debugged_alarm_delay = TimeDelta(); |
157 } | 157 } |
158 | 158 |
159 } // namespace base | 159 } // namespace base |
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