Added Java bindings to async trace functions with track argument (420bd3c2) · Commits · e / os / android_frameworks_base

core/java/android/os/Trace.java

+47 −0

Original line number	Diff line number	Diff line
		@@ -136,6 +136,12 @@ public final class Trace {
		@FastNative
		private static native void nativeAsyncTraceEnd(long tag, String name, int cookie);
		@FastNative
		private static native void nativeAsyncTraceForTrackBegin(long tag,
		String trackName, String name, int cookie);
		@FastNative
		private static native void nativeAsyncTraceForTrackEnd(long tag,
		String trackName, String name, int cookie);
		@FastNative
		private static native void nativeInstant(long tag, String name);
		@FastNative
		private static native void nativeInstantForTrack(long tag, String trackName, String name);
		@@ -271,6 +277,47 @@ public final class Trace {
		}
		}


		/**
		* Writes a trace message to indicate that a given section of code has
		* begun. Must be followed by a call to {@link #asyncTraceForTrackEnd} using the same
		* tag. This function operates exactly like {@link #asyncTraceBegin(long, String, int)},
		* except with the inclusion of a track name argument for where this method should appear.
		*
		* @param traceTag The trace tag.
		* @param trackName The track where the event should appear in the trace.
		* @param methodName The method name to appear in the trace.
		* @param cookie Unique identifier for distinguishing simultaneous events
		*
		* @hide
		*/
		public static void asyncTraceForTrackBegin(long traceTag,
		@NonNull String trackName, @NonNull String methodName, int cookie) {
		if (isTagEnabled(traceTag)) {
		nativeAsyncTraceForTrackBegin(traceTag, trackName, methodName, cookie);
		}
		}

		/**
		* Writes a trace message to indicate that the current method has ended.
		* Must be called exactly once for each call to
		* {@link #asyncTraceForTrackBegin(long, String, String, int)}
		* using the same tag, track name, name and cookie.
		*
		* @param traceTag The trace tag.
		* @param trackName The track where the event should appear in the trace.
		* @param methodName The method name to appear in the trace.
		* @param cookie Unique identifier for distinguishing simultaneous events
		*
		* @hide
		*/
		public static void asyncTraceForTrackEnd(long traceTag,
		@NonNull String trackName, @NonNull String methodName, int cookie) {
		if (isTagEnabled(traceTag)) {
		nativeAsyncTraceForTrackEnd(traceTag, trackName, methodName, cookie);
		}
		}

		/**
		* Writes a trace message to indicate that a given section of code was invoked.
		*

core/jni/android_os_Trace.cpp

+26 −0

Original line number	Diff line number	Diff line
		@@ -82,6 +82,26 @@ static void android_os_Trace_nativeAsyncTraceEnd(JNIEnv* env, jclass,
		});
		}

		static void android_os_Trace_nativeAsyncTraceForTrackBegin(JNIEnv* env, jclass, jlong tag,
		jstring trackStr, jstring nameStr,
		jint cookie) {
		withString(env, trackStr, [env, tag, nameStr, cookie](char* track) {
		withString(env, nameStr, [tag, track, cookie](char* name) {
		atrace_async_for_track_begin(tag, track, name, cookie);
		});
		});
		}

		static void android_os_Trace_nativeAsyncTraceForTrackEnd(JNIEnv* env, jclass, jlong tag,
		jstring trackStr, jstring nameStr,
		jint cookie) {
		withString(env, trackStr, [env, tag, nameStr, cookie](char* track) {
		withString(env, nameStr, [tag, track, cookie](char* name) {
		atrace_async_for_track_end(tag, track, name, cookie);
		});
		});
		}

		static void android_os_Trace_nativeSetAppTracingAllowed(JNIEnv*, jclass, jboolean allowed) {
		atrace_update_tags();
		}
		@@ -132,6 +152,12 @@ static const JNINativeMethod gTraceMethods[] = {
		{ "nativeAsyncTraceEnd",
		"(JLjava/lang/String;I)V",
		(void*)android_os_Trace_nativeAsyncTraceEnd },
		{ "nativeAsyncTraceForTrackBegin",
		"(JLjava/lang/String;Ljava/lang/String;I)V",
		(void*)android_os_Trace_nativeAsyncTraceForTrackBegin },
		{ "nativeAsyncTraceForTrackEnd",
		"(JLjava/lang/String;Ljava/lang/String;I)V",
		(void*)android_os_Trace_nativeAsyncTraceForTrackEnd },
		{ "nativeInstant",
		"(JLjava/lang/String;)V",
		(void*)android_os_Trace_nativeInstant },