Merge "Support starting and stopping perfetto tracing sessions" into main (23069b31) · Commits · e / os / android_frameworks_native

libs/tracing_perfetto/include/tracing_sdk.h

+20 −0

Original line number	Diff line number	Diff line
		@@ -27,6 +27,10 @@
		#include "perfetto/public/te_macros.h"
		#include "perfetto/public/track_event.h"

		#include "perfetto/public/abi/pb_decoder_abi.h"
		#include "perfetto/public/pb_utils.h"
		#include "perfetto/public/tracing_session.h"

		/**
		* The objects declared here are intended to be managed by Java.
		* This means the Java Garbage Collector is responsible for freeing the
		@@ -452,6 +456,22 @@ class Proto {
		std::vector<PerfettoTeHlProtoField*> fields_;
		};

		class Session {
		public:
		Session(bool is_backend_in_process, void* buf, size_t len);
		~Session();
		Session(const Session&) = delete;
		Session& operator=(const Session&) = delete;

		bool FlushBlocking(uint32_t timeout_ms);
		void StopBlocking();
		std::vector<uint8_t> ReadBlocking();

		static void delete_session(Session* session);

		struct PerfettoTracingSessionImpl* session_ = nullptr;
		};

		/**
		* @brief Activates a trigger.
		* @param name The name of the trigger.

+4 −33

Original line number	Diff line number	Diff line
		@@ -21,44 +21,12 @@ package {
		default_applicable_licenses: ["frameworks_native_license"],
		}

		cc_library_static {
		name: "libtracing_perfetto_test_utils",
		export_include_dirs: [
		"include",
		],
		static_libs: [
		"libflagtest",
		"libgmock",
		"perfetto_trace_protos",
		],
		cflags: [
		"-Wall",
		"-Werror",
		"-Wno-enum-compare",
		"-Wno-unused-function",
		],

		srcs: [
		"utils.cpp",
		],

		shared_libs: [
		"libperfetto_c",
		"liblog",
		"libprotobuf-cpp-lite",
		],
		export_shared_lib_headers: [
		"libperfetto_c",
		],
		}

		cc_test {
		name: "libtracing_perfetto_tests",
		static_libs: [
		"libflagtest",
		"libgmock",
		"perfetto_trace_protos",
		"libtracing_perfetto_test_utils",
		],
		cflags: [
		"-Wall",
		@@ -68,12 +36,15 @@ cc_test {
		"android.os.flags-aconfig-cc-host",
		"libbase",
		"libperfetto_c",
		"liblog",
		"libprotobuf-cpp-lite",
		"libtracing_perfetto",
		],
		srcs: [
		"tracing_perfetto_test.cpp",
		"utils.cpp",
		],
		local_include_dirs: [
		"include",
		],
		test_suites: ["device-tests"],
		}

+41 −0

Original line number	Diff line number	Diff line
		@@ -254,6 +254,47 @@ const PerfettoTeHlProtoFieldNested* ProtoFieldNested::get() const {
		return &field_;
		}

		Session::Session(bool is_backend_in_process, void* buf, size_t len) {
		session_ = PerfettoTracingSessionCreate(is_backend_in_process
		? PERFETTO_BACKEND_IN_PROCESS
		: PERFETTO_BACKEND_SYSTEM);

		PerfettoTracingSessionSetup(session_, buf, len);

		PerfettoTracingSessionStartBlocking(session_);
		}

		Session::~Session() {
		PerfettoTracingSessionStopBlocking(session_);
		PerfettoTracingSessionDestroy(session_);
		}

		bool Session::FlushBlocking(uint32_t timeout_ms) {
		return PerfettoTracingSessionFlushBlocking(session_, timeout_ms);
		}

		void Session::StopBlocking() {
		PerfettoTracingSessionStopBlocking(session_);
		}

		std::vector<uint8_t> Session::ReadBlocking() {
		std::vector<uint8_t> data;
		PerfettoTracingSessionReadTraceBlocking(
		session_,
		[](struct PerfettoTracingSessionImpl, const void trace_data,
		size_t size, bool, void* user_arg) {
		auto& dst = static_cast<std::vector<uint8_t>>(user_arg);
		auto* src = static_cast<const uint8_t*>(trace_data);
		dst.insert(dst.end(), src, src + size);
		},
		&data);
		return data;
		}

		void Session::delete_session(Session* ptr) {
		delete ptr;
		}

		void activate_trigger(const char* name, uint32_t ttl_ms) {
		const char* names[] = {name, nullptr};
		PerfettoProducerActivateTriggers(names, ttl_ms);