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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 "content/common/android/trace_event_binding.h" | |
| 6 | |
| 7 #include <jni.h> | |
| 8 | |
| 9 #include <set> | |
| 10 | |
| 11 #include "base/debug/trace_event.h" | |
| 12 #include "base/lazy_instance.h" | |
| 13 #include "jni/TraceEvent_jni.h" | |
| 14 | |
| 15 namespace { | |
| 16 | |
| 17 const char kJavaCategory[] = "Java"; | |
| 18 | |
| 19 // Boilerplate for safely converting Java data to TRACE_EVENT data. | |
| 20 class TraceEventDataConverter { | |
| 21 public: | |
| 22 TraceEventDataConverter(JNIEnv* env, | |
| 23 jstring jname, | |
| 24 jstring jarg) | |
| 25 : env_(env), | |
| 26 jname_(jname), | |
| 27 jarg_(jarg), | |
| 28 name_(env->GetStringUTFChars(jname, NULL)), | |
| 29 arg_(jarg ? env->GetStringUTFChars(jarg, NULL) : NULL) { | |
| 30 } | |
| 31 ~TraceEventDataConverter() { | |
| 32 env_->ReleaseStringUTFChars(jname_, name_); | |
| 33 if (jarg_) | |
| 34 env_->ReleaseStringUTFChars(jarg_, arg_); | |
| 35 } | |
| 36 | |
| 37 // Return saves values to pass to TRACE_EVENT macros. | |
| 38 const char* name() { return name_; } | |
| 39 const char* arg_name() { return arg_ ? "arg" : NULL; } | |
| 40 const char* arg() { return arg_; } | |
| 41 | |
| 42 private: | |
| 43 JNIEnv* env_; | |
| 44 jstring jname_; | |
| 45 jstring jarg_; | |
| 46 const char* name_; | |
| 47 const char* arg_; | |
| 48 | |
| 49 DISALLOW_COPY_AND_ASSIGN(TraceEventDataConverter); | |
| 50 }; | |
| 51 | |
| 52 } // namespace | |
| 53 | |
| 54 static jboolean TraceEnabled(JNIEnv* env, jclass clazz) { | |
| 55 return base::debug::TraceLog::GetInstance()->IsEnabled(); | |
| 56 } | |
| 57 | |
| 58 static void StartATrace(JNIEnv* env, jclass clazz) { | |
| 59 base::debug::TraceLog::GetInstance()->StartATrace(); | |
| 60 } | |
| 61 | |
| 62 static void StopATrace(JNIEnv* env, jclass clazz) { | |
| 63 base::debug::TraceLog::GetInstance()->StopATrace(); | |
| 64 } | |
| 65 | |
| 66 static void Instant(JNIEnv* env, jclass clazz, | |
| 67 jstring jname, jstring jarg) { | |
| 68 TraceEventDataConverter converter(env, jname, jarg); | |
| 69 if (converter.arg()) { | |
| 70 TRACE_EVENT_COPY_INSTANT1(kJavaCategory, converter.name(), | |
| 71 TRACE_EVENT_SCOPE_THREAD, | |
| 72 converter.arg_name(), converter.arg()); | |
| 73 } else { | |
| 74 TRACE_EVENT_COPY_INSTANT0(kJavaCategory, converter.name(), | |
| 75 TRACE_EVENT_SCOPE_THREAD); | |
| 76 } | |
| 77 } | |
| 78 | |
| 79 static void Begin(JNIEnv* env, jclass clazz, | |
| 80 jstring jname, jstring jarg) { | |
| 81 TraceEventDataConverter converter(env, jname, jarg); | |
| 82 if (converter.arg()) { | |
| 83 TRACE_EVENT_COPY_BEGIN1(kJavaCategory, converter.name(), | |
| 84 converter.arg_name(), converter.arg()); | |
| 85 } else { | |
| 86 TRACE_EVENT_COPY_BEGIN0(kJavaCategory, converter.name()); | |
| 87 } | |
| 88 } | |
| 89 | |
| 90 static void End(JNIEnv* env, jclass clazz, | |
| 91 jstring jname, jstring jarg) { | |
| 92 TraceEventDataConverter converter(env, jname, jarg); | |
| 93 if (converter.arg()) { | |
| 94 TRACE_EVENT_COPY_END1(kJavaCategory, converter.name(), | |
| 95 converter.arg_name(), converter.arg()); | |
| 96 } else { | |
| 97 TRACE_EVENT_COPY_END0(kJavaCategory, converter.name()); | |
| 98 } | |
| 99 } | |
| 100 | |
| 101 static void StartAsync(JNIEnv* env, jclass clazz, | |
| 102 jstring jname, jlong jid, jstring jarg) { | |
| 103 TraceEventDataConverter converter(env, jname, jarg); | |
| 104 if (converter.arg()) { | |
| 105 TRACE_EVENT_COPY_ASYNC_BEGIN1(kJavaCategory, | |
| 106 converter.name(), | |
| 107 jid, | |
| 108 converter.arg_name(), | |
| 109 converter.arg()); | |
| 110 } else { | |
| 111 TRACE_EVENT_COPY_ASYNC_BEGIN0(kJavaCategory, | |
| 112 converter.name(), | |
| 113 jid); | |
| 114 } | |
| 115 } | |
| 116 | |
| 117 static void FinishAsync(JNIEnv* env, jclass clazz, | |
| 118 jstring jname, jlong jid, jstring jarg) { | |
| 119 TraceEventDataConverter converter(env, jname, jarg); | |
| 120 if (converter.arg()) { | |
| 121 TRACE_EVENT_COPY_ASYNC_END1(kJavaCategory, | |
| 122 converter.name(), | |
| 123 jid, | |
| 124 converter.arg_name(), | |
| 125 converter.arg()); | |
| 126 } else { | |
| 127 TRACE_EVENT_COPY_ASYNC_END0(kJavaCategory, | |
| 128 converter.name(), | |
| 129 jid); | |
| 130 } | |
| 131 } | |
| 132 | |
| 133 bool RegisterTraceEvent(JNIEnv* env) { | |
| 134 return RegisterNativesImpl(env); | |
| 135 } | |
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Chromium Code Reviews
Issue 131553003:
Move Android TraceEvent interface to base (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master