OLD | NEW |
1 // Copyright (c) 2009 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2009 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/logging_win.h" | 5 #include "base/logging_win.h" |
6 #include "base/atomicops.h" | 6 #include "base/atomicops.h" |
7 #include "base/singleton.h" | 7 #include "base/singleton.h" |
8 #include <initguid.h> // NOLINT | 8 #include <initguid.h> // NOLINT |
9 | 9 |
10 namespace { | 10 namespace { |
11 | 11 |
12 struct LogEventProviderTraits { | 12 struct LogEventProviderTraits { |
13 // WARNING: User has to deal with get() returning NULL. | 13 // WARNING: User has to deal with get() returning NULL. |
14 static logging::LogEventProvider* New() { | 14 static logging::LogEventProvider* New() { |
15 if (base::subtle::NoBarrier_AtomicExchange(&dead_, 1)) | 15 if (base::subtle::NoBarrier_AtomicExchange(&dead_, 1)) |
16 return NULL; | 16 return NULL; |
17 logging::LogEventProvider* ptr = | 17 logging::LogEventProvider* ptr = |
18 reinterpret_cast<logging::LogEventProvider*>(buffer_); | 18 reinterpret_cast<logging::LogEventProvider*>(buffer_); |
19 // We are protected by a memory barrier. | 19 // We are protected by a memory barrier. |
20 new(ptr) logging::LogEventProvider(); | 20 new (ptr) logging::LogEventProvider(); |
21 return ptr; | 21 return ptr; |
22 } | 22 } |
23 | 23 |
24 static void Delete(logging::LogEventProvider* p) { | 24 static void Delete(logging::LogEventProvider* p) { |
25 base::subtle::NoBarrier_Store(&dead_, 1); | 25 base::subtle::NoBarrier_Store(&dead_, 1); |
26 MemoryBarrier(); | 26 MemoryBarrier(); |
27 p->logging::LogEventProvider::~LogEventProvider(); | 27 p->logging::LogEventProvider::~LogEventProvider(); |
28 } | 28 } |
29 | 29 |
30 static const bool kRegisterAtExit = true; | 30 static const bool kRegisterAtExit = true; |
(...skipping 112 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
143 break; | 143 break; |
144 } | 144 } |
145 } | 145 } |
146 | 146 |
147 void LogEventProvider::OnEventsDisabled() { | 147 void LogEventProvider::OnEventsDisabled() { |
148 // Restore the old log level. | 148 // Restore the old log level. |
149 SetMinLogLevel(old_log_level_); | 149 SetMinLogLevel(old_log_level_); |
150 } | 150 } |
151 | 151 |
152 } // namespace logging | 152 } // namespace logging |
OLD | NEW |