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- // Copyright 2014 The Chromium Authors. All rights reserved.
- // Use of this source code is governed by a BSD-style license that can be
- // found in the LICENSE file.
- #include <jni.h>
- #include <set>
- #include "base/android/jni_string.h"
- #include "base/android/trace_event_binding.h"
- #include "base/base_jni_headers/TraceEvent_jni.h"
- #include "base/metrics/histogram_macros.h"
- #include "base/trace_event/base_tracing.h"
- #include "base/tracing_buildflags.h"
- #if BUILDFLAG(ENABLE_BASE_TRACING)
- #include "base/trace_event/trace_event_impl.h" // no-presubmit-check
- #endif // BUILDFLAG(ENABLE_BASE_TRACING)
- namespace base {
- namespace android {
- #if BUILDFLAG(ENABLE_BASE_TRACING)
- namespace {
- constexpr const char kAndroidViewHierarchyTraceCategory[] =
- TRACE_DISABLED_BY_DEFAULT("android_view_hierarchy");
- constexpr const char kAndroidViewHierarchyEventName[] = "AndroidView";
- class TraceEnabledObserver
- : public trace_event::TraceLog::EnabledStateObserver {
- public:
- ~TraceEnabledObserver() override = default;
- // trace_event::TraceLog::EnabledStateObserver:
- void OnTraceLogEnabled() override {
- JNIEnv* env = base::android::AttachCurrentThread();
- base::android::Java_TraceEvent_setEnabled(env, true);
- if (base::trace_event::TraceLog::GetInstance()
- ->GetCurrentTraceConfig()
- .IsEventPackageNameFilterEnabled()) {
- base::android::Java_TraceEvent_setEventNameFilteringEnabled(env, true);
- }
- }
- void OnTraceLogDisabled() override {
- JNIEnv* env = base::android::AttachCurrentThread();
- base::android::Java_TraceEvent_setEnabled(env, false);
- base::android::Java_TraceEvent_setEventNameFilteringEnabled(env, false);
- }
- };
- } // namespace
- static void JNI_TraceEvent_RegisterEnabledObserver(JNIEnv* env) {
- bool enabled = trace_event::TraceLog::GetInstance()->IsEnabled();
- base::android::Java_TraceEvent_setEnabled(env, enabled);
- trace_event::TraceLog::GetInstance()->AddOwnedEnabledStateObserver(
- std::make_unique<TraceEnabledObserver>());
- }
- static void JNI_TraceEvent_StartATrace(
- JNIEnv* env,
- const JavaParamRef<jstring>& category_filter) {
- std::string category_filter_utf8 =
- ConvertJavaStringToUTF8(env, category_filter);
- base::trace_event::TraceLog::GetInstance()->StartATrace(category_filter_utf8);
- }
- static void JNI_TraceEvent_StopATrace(JNIEnv* env) {
- base::trace_event::TraceLog::GetInstance()->StopATrace();
- }
- static void JNI_TraceEvent_SetupATraceStartupTrace(
- JNIEnv* env,
- const JavaParamRef<jstring>& category_filter) {
- std::string category_filter_utf8 =
- ConvertJavaStringToUTF8(env, category_filter);
- base::trace_event::TraceLog::GetInstance()->SetupATraceStartupTrace(
- category_filter_utf8);
- }
- static jboolean JNI_TraceEvent_ViewHierarchyDumpEnabled(JNIEnv* env) {
- static const unsigned char* enabled =
- TRACE_EVENT_API_GET_CATEGORY_GROUP_ENABLED(
- kAndroidViewHierarchyTraceCategory);
- return *enabled;
- }
- static void JNI_TraceEvent_InitViewHierarchyDump(JNIEnv* env) {
- SCOPED_UMA_HISTOGRAM_TIMER("Tracing.ViewHierarchyDump.DumpDuration");
- TRACE_EVENT_INSTANT(
- kAndroidViewHierarchyTraceCategory, kAndroidViewHierarchyEventName,
- perfetto::Track::Global(0), [&](perfetto::EventContext ctx) {
- auto* event = ctx.event<perfetto::protos::pbzero::ChromeTrackEvent>();
- auto* dump = event->set_android_view_dump();
- Java_TraceEvent_dumpViewHierarchy(env, reinterpret_cast<jlong>(dump));
- });
- }
- static jlong JNI_TraceEvent_StartActivityDump(JNIEnv* env,
- const JavaParamRef<jstring>& name,
- jlong dump_proto_ptr) {
- auto* dump = reinterpret_cast<perfetto::protos::pbzero::AndroidViewDump*>(
- dump_proto_ptr);
- auto* activity = dump->add_activity();
- activity->set_name(ConvertJavaStringToUTF8(env, name));
- return reinterpret_cast<jlong>(activity);
- }
- static void JNI_TraceEvent_AddViewDump(
- JNIEnv* env,
- jint id,
- jint parent_id,
- jboolean is_shown,
- jboolean is_dirty,
- const JavaParamRef<jstring>& class_name,
- const JavaParamRef<jstring>& resource_name,
- jlong activity_proto_ptr) {
- auto* activity = reinterpret_cast<perfetto::protos::pbzero::AndroidActivity*>(
- activity_proto_ptr);
- auto* view = activity->add_view();
- view->set_id(id);
- view->set_parent_id(parent_id);
- view->set_is_shown(is_shown);
- view->set_is_dirty(is_dirty);
- view->set_class_name(ConvertJavaStringToUTF8(env, class_name));
- view->set_resource_name(ConvertJavaStringToUTF8(env, resource_name));
- }
- #else // BUILDFLAG(ENABLE_BASE_TRACING)
- // Empty implementations when TraceLog isn't available.
- static void JNI_TraceEvent_RegisterEnabledObserver(JNIEnv* env) {
- base::android::Java_TraceEvent_setEnabled(env, false);
- // This code should not be reached when base tracing is disabled. Calling
- // setEventNameFilteringEnabled to avoid "unused function" warning.
- base::android::Java_TraceEvent_setEventNameFilteringEnabled(env, false);
- }
- static void JNI_TraceEvent_StartATrace(JNIEnv* env,
- const JavaParamRef<jstring>&) {}
- static void JNI_TraceEvent_StopATrace(JNIEnv* env) {}
- static void JNI_TraceEvent_SetupATraceStartupTrace(
- JNIEnv* env,
- const JavaParamRef<jstring>&) {}
- static jboolean JNI_TraceEvent_ViewHierarchyDumpEnabled(JNIEnv* env) {
- return false;
- }
- static void JNI_TraceEvent_InitViewHierarchyDump(JNIEnv* env) {
- DCHECK(false);
- // This code should not be reached when base tracing is disabled. Calling
- // dumpViewHierarchy to avoid "unused function" warning.
- Java_TraceEvent_dumpViewHierarchy(env, 0);
- }
- static jlong JNI_TraceEvent_StartActivityDump(JNIEnv* env,
- const JavaParamRef<jstring>& name,
- jlong dump_proto_ptr) {
- return 0;
- }
- static void JNI_TraceEvent_AddViewDump(
- JNIEnv* env,
- jint id,
- jint parent_id,
- jboolean is_shown,
- jboolean is_dirty,
- const JavaParamRef<jstring>& class_name,
- const JavaParamRef<jstring>& resource_name,
- jlong activity_proto_ptr) {}
- #endif // BUILDFLAG(ENABLE_BASE_TRACING)
- namespace {
- // Boilerplate for safely converting Java data to TRACE_EVENT data.
- class TraceEventDataConverter {
- public:
- TraceEventDataConverter(JNIEnv* env, jstring jname, jstring jarg)
- : name_(ConvertJavaStringToUTF8(env, jname)),
- has_arg_(jarg != nullptr),
- arg_(jarg ? ConvertJavaStringToUTF8(env, jarg) : "") {}
- TraceEventDataConverter(const TraceEventDataConverter&) = delete;
- TraceEventDataConverter& operator=(const TraceEventDataConverter&) = delete;
- ~TraceEventDataConverter() = default;
- // Return saved values to pass to TRACE_EVENT macros.
- const char* name() { return name_.c_str(); }
- const char* arg_name() { return has_arg_ ? "arg" : nullptr; }
- const std::string& arg() { return arg_; }
- private:
- std::string name_;
- bool has_arg_;
- std::string arg_;
- };
- } // namespace
- static void JNI_TraceEvent_Instant(JNIEnv* env,
- const JavaParamRef<jstring>& jname,
- const JavaParamRef<jstring>& jarg) {
- TraceEventDataConverter converter(env, jname, jarg);
- if (converter.arg_name()) {
- TRACE_EVENT_INSTANT(internal::kJavaTraceCategory, nullptr,
- converter.arg_name(), converter.arg(),
- [&](::perfetto::EventContext& ctx) {
- ctx.event()->set_name(converter.name());
- });
- } else {
- TRACE_EVENT_INSTANT(internal::kJavaTraceCategory, nullptr,
- [&](::perfetto::EventContext& ctx) {
- ctx.event()->set_name(converter.name());
- });
- }
- }
- static void JNI_TraceEvent_InstantAndroidIPC(JNIEnv* env,
- const JavaParamRef<jstring>& jname,
- jlong jdur) {
- TRACE_EVENT_INSTANT(
- internal::kJavaTraceCategory, "AndroidIPC",
- [&](perfetto::EventContext ctx) {
- TraceEventDataConverter converter(env, jname, nullptr);
- auto* event = ctx.event<perfetto::protos::pbzero::ChromeTrackEvent>();
- auto* android_ipc = event->set_android_ipc();
- android_ipc->set_name(converter.name());
- android_ipc->set_dur_ms(jdur);
- });
- }
- static void JNI_TraceEvent_Begin(JNIEnv* env,
- const JavaParamRef<jstring>& jname,
- const JavaParamRef<jstring>& jarg) {
- TraceEventDataConverter converter(env, jname, jarg);
- if (converter.arg_name()) {
- TRACE_EVENT_BEGIN(internal::kJavaTraceCategory, nullptr,
- converter.arg_name(), converter.arg(),
- [&](::perfetto::EventContext& ctx) {
- ctx.event()->set_name(converter.name());
- });
- } else {
- TRACE_EVENT_BEGIN(internal::kJavaTraceCategory, nullptr,
- [&](::perfetto::EventContext& ctx) {
- ctx.event()->set_name(converter.name());
- });
- }
- }
- static void JNI_TraceEvent_End(JNIEnv* env,
- const JavaParamRef<jstring>& jname,
- const JavaParamRef<jstring>& jarg) {
- TraceEventDataConverter converter(env, jname, jarg);
- if (converter.arg_name()) {
- TRACE_EVENT_END(internal::kJavaTraceCategory, converter.arg_name(),
- converter.arg());
- } else {
- TRACE_EVENT_END(internal::kJavaTraceCategory);
- }
- }
- static void JNI_TraceEvent_BeginToplevel(JNIEnv* env,
- const JavaParamRef<jstring>& jtarget) {
- std::string target = ConvertJavaStringToUTF8(env, jtarget);
- TRACE_EVENT_BEGIN(internal::kToplevelTraceCategory, nullptr,
- [&](::perfetto::EventContext& ctx) {
- ctx.event()->set_name(target.c_str());
- });
- }
- static void JNI_TraceEvent_EndToplevel(JNIEnv* env,
- const JavaParamRef<jstring>& jtarget) {
- std::string target = ConvertJavaStringToUTF8(env, jtarget);
- TRACE_EVENT_END(internal::kToplevelTraceCategory);
- }
- static void JNI_TraceEvent_StartAsync(JNIEnv* env,
- const JavaParamRef<jstring>& jname,
- jlong jid) {
- TraceEventDataConverter converter(env, jname, nullptr);
- TRACE_EVENT_BEGIN(internal::kJavaTraceCategory, nullptr,
- perfetto::Track(static_cast<uint64_t>(jid)),
- [&](::perfetto::EventContext& ctx) {
- ctx.event()->set_name(converter.name());
- });
- }
- static void JNI_TraceEvent_FinishAsync(JNIEnv* env,
- const JavaParamRef<jstring>& jname,
- jlong jid) {
- TraceEventDataConverter converter(env, jname, nullptr);
- TRACE_EVENT_END(internal::kJavaTraceCategory,
- perfetto::Track(static_cast<uint64_t>(jid)));
- }
- } // namespace android
- } // namespace base
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