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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 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 "content/browser/android/tracing_controller_android.h" | 5 #include "content/browser/android/tracing_controller_android.h" |
6 | 6 |
7 #include <vector> | |
8 | |
9 #include "base/android/early_trace_event.h" | |
7 #include "base/android/jni_android.h" | 10 #include "base/android/jni_android.h" |
8 #include "base/android/jni_string.h" | 11 #include "base/android/jni_string.h" |
9 #include "base/json/json_writer.h" | 12 #include "base/json/json_writer.h" |
10 #include "base/logging.h" | 13 #include "base/logging.h" |
11 #include "base/trace_event/trace_event.h" | 14 #include "base/trace_event/trace_event.h" |
15 #include "content/browser/tracing/tracing_controller_impl.h" | |
12 #include "content/public/browser/tracing_controller.h" | 16 #include "content/public/browser/tracing_controller.h" |
13 #include "jni/TracingControllerAndroid_jni.h" | 17 #include "jni/TracingControllerAndroid_jni.h" |
14 | 18 |
19 using base::trace_event::TraceLog; | |
20 | |
15 namespace content { | 21 namespace content { |
22 namespace { | |
23 | |
24 const char kCategoryGroup[] = "EarlyJava"; | |
25 | |
26 // Adds the early Java trace events (i.e. before the native library was called) | |
27 // to the TraceEvent log before the data gets written to disk. | |
28 void OnDisableRecording(TraceLog* trace_log) { | |
29 const unsigned char* const category_group_enabled = | |
30 TRACE_EVENT_API_GET_CATEGORY_GROUP_ENABLED(kCategoryGroup); | |
31 | |
32 std::vector<base::android::EarlyTraceEvent> trace_events; | |
33 base::android::GetAllEarlyTraceEvents(&trace_events); | |
34 | |
35 // Enables the tracing recording only for the specific "EarlyJava" category | |
36 // just for the duration of the dump. Otherwise, the events are dropped in the | |
37 // AddTraceEventWithThreadIdAndTimestamp call chain. Note that since this | |
38 // category is not used elsewhere, there is no race condition here. | |
39 TraceLog::GetInstance()->SetEnabled( | |
40 base::trace_event::CategoryFilter(kCategoryGroup), | |
41 TraceLog::RECORDING_MODE, base::trace_event::TraceOptions()); | |
42 | |
43 for (std::vector<base::android::EarlyTraceEvent>::const_iterator it = | |
44 trace_events.begin(); | |
45 it != trace_events.end(); ++it) { | |
46 const base::android::EarlyTraceEvent& trace_event = *it; | |
47 const struct { | |
48 const char phase; | |
49 const base::TimeTicks timestamp; | |
50 const base::TimeTicks thread_time; | |
51 } phases[] = { | |
52 {TRACE_EVENT_PHASE_BEGIN, trace_event.begin_timestamp, | |
53 trace_event.begin_thread_time}, | |
54 {TRACE_EVENT_PHASE_END, trace_event.end_timestamp, | |
55 trace_event.end_thread_time}, | |
56 }; | |
57 | |
58 for (size_t i = 0; i < sizeof(phases) / sizeof(phases[0]); ++i) { | |
59 // Overhead reporting is disabled, as the events are added later than they | |
60 // occur. With overhead reporting, the overhead would have an | |
61 // unrealistic and very high value. | |
62 trace_log->AddTraceEventWithThreadIdAndTimestamp( | |
63 phases[i].phase, category_group_enabled, trace_event.name.c_str(), | |
dsinclair
2015/03/16 14:41:23
All of these are going to end up with the category
Benoit L
2015/03/19 16:50:47
I think that EarlyJava is fine. I have added a com
| |
64 trace_event_internal::kNoEventId, | |
65 trace_event.thread_id, phases[i].timestamp, phases[i].thread_time, | |
66 0, NULL, NULL, NULL, NULL, | |
67 TRACE_EVENT_FLAG_COPY | TRACE_EVENT_FLAG_EXPLICIT_TIMESTAMP); | |
68 } | |
69 } | |
70 | |
71 TraceLog::GetInstance()->SetDisabled(); | |
72 } | |
73 | |
74 } // namespace | |
16 | 75 |
17 static jlong Init(JNIEnv* env, jobject obj) { | 76 static jlong Init(JNIEnv* env, jobject obj) { |
18 TracingControllerAndroid* profiler = new TracingControllerAndroid(env, obj); | 77 TracingControllerAndroid* profiler = new TracingControllerAndroid(env, obj); |
19 return reinterpret_cast<intptr_t>(profiler); | 78 return reinterpret_cast<intptr_t>(profiler); |
20 } | 79 } |
21 | 80 |
22 TracingControllerAndroid::TracingControllerAndroid(JNIEnv* env, jobject obj) | 81 TracingControllerAndroid::TracingControllerAndroid(JNIEnv* env, jobject obj) |
23 : weak_java_object_(env, obj), | 82 : weak_java_object_(env, obj), |
24 weak_factory_(this) {} | 83 weak_factory_(this) {} |
25 | 84 |
26 TracingControllerAndroid::~TracingControllerAndroid() {} | 85 TracingControllerAndroid::~TracingControllerAndroid() {} |
27 | 86 |
28 void TracingControllerAndroid::Destroy(JNIEnv* env, jobject obj) { | 87 void TracingControllerAndroid::Destroy(JNIEnv* env, jobject obj) { |
29 delete this; | 88 delete this; |
30 } | 89 } |
31 | 90 |
91 void TracingControllerAndroid::SetupEarlyJavaTracing() { | |
92 TracingControllerImpl::GetInstance()->SetDisableRecordingCallback( | |
93 base::Bind(&OnDisableRecording)); | |
94 } | |
95 | |
32 bool TracingControllerAndroid::StartTracing(JNIEnv* env, | 96 bool TracingControllerAndroid::StartTracing(JNIEnv* env, |
33 jobject obj, | 97 jobject obj, |
34 jstring jcategories, | 98 jstring jcategories, |
35 jstring jtraceoptions) { | 99 jstring jtraceoptions) { |
36 std::string categories = | 100 std::string categories = |
37 base::android::ConvertJavaStringToUTF8(env, jcategories); | 101 base::android::ConvertJavaStringToUTF8(env, jcategories); |
38 base::trace_event::TraceOptions trace_options; | 102 base::trace_event::TraceOptions trace_options; |
39 trace_options.SetFromString( | 103 trace_options.SetFromString( |
40 base::android::ConvertJavaStringToUTF8(env, jtraceoptions)); | 104 base::android::ConvertJavaStringToUTF8(env, jtraceoptions)); |
41 | 105 |
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109 env, | 173 env, |
110 base::trace_event::CategoryFilter::kDefaultCategoryFilterString) | 174 base::trace_event::CategoryFilter::kDefaultCategoryFilterString) |
111 .Release(); | 175 .Release(); |
112 } | 176 } |
113 | 177 |
114 bool RegisterTracingControllerAndroid(JNIEnv* env) { | 178 bool RegisterTracingControllerAndroid(JNIEnv* env) { |
115 return RegisterNativesImpl(env); | 179 return RegisterNativesImpl(env); |
116 } | 180 } |
117 | 181 |
118 } // namespace content | 182 } // namespace content |
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