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| 1 // Copyright (c) 2012 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 #include "base/trace_event/trace_event_win.h" | |
| 6 | |
| 7 #include "base/logging.h" | |
| 8 #include "base/memory/singleton.h" | |
| 9 #include <initguid.h> // NOLINT | |
| 10 | |
| 11 namespace base { | |
| 12 namespace trace_event { | |
| 13 | |
| 14 using base::win::EtwEventType; | |
| 15 using base::win::EtwMofEvent; | |
| 16 | |
| 17 // {3DADA31D-19EF-4dc1-B345-037927193422} | |
| 18 const GUID kChromeTraceProviderName = { | |
| 19 0x3dada31d, 0x19ef, 0x4dc1, 0xb3, 0x45, 0x3, 0x79, 0x27, 0x19, 0x34, 0x22 }; | |
| 20 | |
| 21 // {B967AE67-BB22-49d7-9406-55D91EE1D560} | |
| 22 const GUID kTraceEventClass32 = { | |
| 23 0xb967ae67, 0xbb22, 0x49d7, 0x94, 0x6, 0x55, 0xd9, 0x1e, 0xe1, 0xd5, 0x60 }; | |
| 24 | |
| 25 // {97BE602D-2930-4ac3-8046-B6763B631DFE} | |
| 26 const GUID kTraceEventClass64 = { | |
| 27 0x97be602d, 0x2930, 0x4ac3, 0x80, 0x46, 0xb6, 0x76, 0x3b, 0x63, 0x1d, 0xfe}; | |
| 28 | |
| 29 | |
| 30 TraceEventETWProvider::TraceEventETWProvider() : | |
| 31 EtwTraceProvider(kChromeTraceProviderName) { | |
| 32 Register(); | |
| 33 } | |
| 34 | |
| 35 TraceEventETWProvider* TraceEventETWProvider::GetInstance() { | |
| 36 return Singleton<TraceEventETWProvider, | |
| 37 StaticMemorySingletonTraits<TraceEventETWProvider> >::get(); | |
| 38 } | |
| 39 | |
| 40 bool TraceEventETWProvider::StartTracing() { | |
| 41 return true; | |
| 42 } | |
| 43 | |
| 44 void TraceEventETWProvider::TraceEvent(const char* name, | |
| 45 size_t name_len, | |
| 46 char type, | |
| 47 const void* id, | |
| 48 const char* extra, | |
| 49 size_t extra_len) { | |
| 50 // Make sure we don't touch NULL. | |
| 51 if (name == NULL) | |
| 52 name = ""; | |
| 53 if (extra == NULL) | |
| 54 extra = ""; | |
| 55 | |
| 56 EtwEventType etw_type = 0; | |
| 57 switch (type) { | |
| 58 case TRACE_EVENT_PHASE_BEGIN: | |
| 59 etw_type = kTraceEventTypeBegin; | |
| 60 break; | |
| 61 case TRACE_EVENT_PHASE_END: | |
| 62 etw_type = kTraceEventTypeEnd; | |
| 63 break; | |
| 64 | |
| 65 case TRACE_EVENT_PHASE_INSTANT: | |
| 66 etw_type = kTraceEventTypeInstant; | |
| 67 break; | |
| 68 | |
| 69 default: | |
| 70 NOTREACHED() << "Unknown event type"; | |
| 71 etw_type = kTraceEventTypeInstant; | |
| 72 break; | |
| 73 } | |
| 74 | |
| 75 EtwMofEvent<5> event(kTraceEventClass32, | |
| 76 etw_type, | |
| 77 TRACE_LEVEL_INFORMATION); | |
| 78 event.SetField(0, name_len + 1, name); | |
| 79 event.SetField(1, sizeof(id), &id); | |
| 80 event.SetField(2, extra_len + 1, extra); | |
| 81 | |
| 82 // These variables are declared here so that they are not out of scope when | |
| 83 // the event is logged. | |
| 84 DWORD depth; | |
| 85 void* backtrace[32]; | |
| 86 | |
| 87 // See whether we're to capture a backtrace. | |
| 88 if (enable_flags() & CAPTURE_STACK_TRACE) { | |
| 89 depth = CaptureStackBackTrace(0, | |
| 90 arraysize(backtrace), | |
| 91 backtrace, | |
| 92 NULL); | |
| 93 event.SetField(3, sizeof(depth), &depth); | |
| 94 event.SetField(4, sizeof(backtrace[0]) * depth, backtrace); | |
| 95 } | |
| 96 | |
| 97 // Trace the event. | |
| 98 Log(event.get()); | |
| 99 } | |
| 100 | |
| 101 void TraceEventETWProvider::Trace(const char* name, | |
| 102 size_t name_len, | |
| 103 char type, | |
| 104 const void* id, | |
| 105 const char* extra, | |
| 106 size_t extra_len) { | |
| 107 TraceEventETWProvider* provider = TraceEventETWProvider::GetInstance(); | |
| 108 if (provider && provider->IsTracing()) { | |
| 109 // Compute the name & extra lengths if not supplied already. | |
| 110 if (name_len == kUseStrlen) | |
| 111 name_len = (name == NULL) ? 0 : strlen(name); | |
| 112 if (extra_len == kUseStrlen) | |
| 113 extra_len = (extra == NULL) ? 0 : strlen(extra); | |
| 114 | |
| 115 provider->TraceEvent(name, name_len, type, id, extra, extra_len); | |
| 116 } | |
| 117 } | |
| 118 | |
| 119 void TraceEventETWProvider::Resurrect() { | |
| 120 StaticMemorySingletonTraits<TraceEventETWProvider>::Resurrect(); | |
| 121 } | |
| 122 | |
| 123 } // namespace trace_event | |
| 124 } // namespace base | |
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Chromium Code Reviews
Issue 1446363003:
Deleted OS_WIN and all Windows specific files from base. (Closed)
Base URL: https://github.com/domokit/mojo.git@base_tests