content/browser/android/tracing_controller_android.cc

   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
   3 // found in the LICENSE file.
   4
   5 #include "content/browser/android/tracing_controller_android.h"
   6
   7 #include "base/android/jni_android.h"
   8 #include "base/android/jni_string.h"
   9 #include "base/debug/trace_event.h"
  10 #include "base/logging.h"
  11 #include "content/public/browser/tracing_controller.h"
  12 #include "jni/TracingControllerAndroid_jni.h"
  13
  14 namespace content {
  15
  16 static jlong Init(JNIEnv* env, jobject obj) {
  17   TracingControllerAndroid* profiler = new TracingControllerAndroid(env, obj);
  18   return reinterpret_cast<intptr_t>(profiler);
  19 }
  20
  21 TracingControllerAndroid::TracingControllerAndroid(JNIEnv* env, jobject obj)
  22     : weak_java_object_(env, obj),
  23       weak_factory_(this) {}
  24
  25 TracingControllerAndroid::~TracingControllerAndroid() {}
  26
  27 void TracingControllerAndroid::Destroy(JNIEnv* env, jobject obj) {
  28   delete this;
  29 }
  30
  31 bool TracingControllerAndroid::StartTracing(JNIEnv* env,
  32                                             jobject obj,
  33                                             jstring jfilename,
  34                                             jstring jcategories,
  35                                             jboolean record_continuously) {
  36   file_path_ = base::FilePath(
  37       base::android::ConvertJavaStringToUTF8(env, jfilename));
  38   std::string categories =
  39       base::android::ConvertJavaStringToUTF8(env, jcategories);
  40
  41   // This log is required by adb_profile_chrome.py.
  42   LOG(WARNING) << "Logging performance trace to file: " << file_path_.value();
  43
  44   return TracingController::GetInstance()->EnableRecording(
  45       categories,
  46       record_continuously ? TracingController::RECORD_CONTINUOUSLY
  47                           : TracingController::DEFAULT_OPTIONS,
  48       TracingController::EnableRecordingDoneCallback());
  49 }
  50
  51 void TracingControllerAndroid::StopTracing(JNIEnv* env, jobject obj) {
  52   if (!TracingController::GetInstance()->DisableRecording(
  53       file_path_,
  54       base::Bind(&TracingControllerAndroid::OnTracingStopped,
  55                  weak_factory_.GetWeakPtr()))) {
  56     LOG(ERROR) << "EndTracingAsync failed, forcing an immediate stop";
  57     OnTracingStopped(file_path_);
  58   }
  59 }
  60
  61 void TracingControllerAndroid::OnTracingStopped(
  62     const base::FilePath& file_path) {
  63   JNIEnv* env = base::android::AttachCurrentThread();
  64   base::android::ScopedJavaLocalRef<jobject> obj = weak_java_object_.get(env);
  65   if (obj.obj())
  66     Java_TracingControllerAndroid_onTracingStopped(env, obj.obj());
  67 }
  68
  69 static jstring GetDefaultCategories(JNIEnv* env, jobject obj) {
  70   return base::android::ConvertUTF8ToJavaString(env,
  71       base::debug::CategoryFilter::kDefaultCategoryFilterString).Release();
  72 }
  73
  74 bool RegisterTracingControllerAndroid(JNIEnv* env) {
  75   return RegisterNativesImpl(env);
  76 }
  77
  78 }  // namespace content