Add frameworks support for sample profiling from traceview gui. (7be3a138) · Commits · e / os / android_frameworks_base

core/java/android/ddm/DdmHandleProfiling.java

+51 −1

Original line number	Diff line number	Diff line
		@@ -34,6 +34,8 @@ public class DdmHandleProfiling extends ChunkHandler {
		public static final int CHUNK_MPSS = type("MPSS");
		public static final int CHUNK_MPSE = type("MPSE");
		public static final int CHUNK_MPRQ = type("MPRQ");
		public static final int CHUNK_SPSS = type("SPSS");
		public static final int CHUNK_SPSE = type("SPSE");

		private static DdmHandleProfiling mInstance = new DdmHandleProfiling();

		@@ -50,6 +52,8 @@ public class DdmHandleProfiling extends ChunkHandler {
		DdmServer.registerHandler(CHUNK_MPSS, mInstance);
		DdmServer.registerHandler(CHUNK_MPSE, mInstance);
		DdmServer.registerHandler(CHUNK_MPRQ, mInstance);
		DdmServer.registerHandler(CHUNK_SPSS, mInstance);
		DdmServer.registerHandler(CHUNK_SPSE, mInstance);
		}

		/**
		@@ -82,6 +86,10 @@ public class DdmHandleProfiling extends ChunkHandler {
		return handleMPSE(request);
		} else if (type == CHUNK_MPRQ) {
		return handleMPRQ(request);
		} else if (type == CHUNK_SPSS) {
		return handleSPSS(request);
		} else if (type == CHUNK_SPSE) {
		return handleSPSE(request);
		} else {
		throw new RuntimeException("Unknown packet "
		+ ChunkHandler.name(type));
		@@ -144,7 +152,7 @@ public class DdmHandleProfiling extends ChunkHandler {
		}

		try {
		Debug.startMethodTracingDdms(bufferSize, flags);
		Debug.startMethodTracingDdms(bufferSize, flags, false, 0);
		return null; // empty response
		} catch (RuntimeException re) {
		return createFailChunk(1, re.getMessage());
		@@ -184,5 +192,47 @@ public class DdmHandleProfiling extends ChunkHandler {
		byte[] reply = { (byte) result };
		return new Chunk(CHUNK_MPRQ, reply, 0, reply.length);
		}

		/*
		* Handle a "Sample Profiling w/Streaming Start" request.
		*/
		private Chunk handleSPSS(Chunk request) {
		ByteBuffer in = wrapChunk(request);

		int bufferSize = in.getInt();
		int flags = in.getInt();
		int interval = in.getInt();
		if (false) {
		Log.v("ddm-heap", "Sample prof stream start: size=" + bufferSize
		+ ", flags=" + flags + ", interval=" + interval);
		}

		try {
		Debug.startMethodTracingDdms(bufferSize, flags, true, interval);
		return null; // empty response
		} catch (RuntimeException re) {
		return createFailChunk(1, re.getMessage());
		}
		}

		/*
		* Handle a "Sample Profiling w/Streaming End" request.
		*/
		private Chunk handleSPSE(Chunk request) {
		if (false) {
		Log.v("ddm-heap", "Sample prof stream end");
		}

		try {
		Debug.stopMethodTracing();
		} catch (RuntimeException re) {
		Log.w("ddm-heap", "Sample prof stream end failed: "
		+ re.getMessage());
		return createFailChunk(1, re.getMessage());
		}

		/* VM sent the (perhaps very large) response directly */
		return null;
		}
		}

core/java/android/os/Debug.java

+3 −2

Original line number	Diff line number	Diff line
		@@ -639,8 +639,9 @@ href="{@docRoot}guide/developing/tools/traceview.html">Traceview: A Graphical Lo
		*
		* @hide
		*/
		public static void startMethodTracingDdms(int bufferSize, int flags) {
		VMDebug.startMethodTracingDdms(bufferSize, flags);
		public static void startMethodTracingDdms(int bufferSize, int flags,
		boolean samplingEnabled, int intervalUs) {
		VMDebug.startMethodTracingDdms(bufferSize, flags, samplingEnabled, intervalUs);
		}

		/**