diff options
Diffstat (limited to 'eclipse/plugins/com.android.ide.eclipse.ddms/src/com/android/ide/eclipse/ddms/systrace/SystraceTask.java')
-rw-r--r-- | eclipse/plugins/com.android.ide.eclipse.ddms/src/com/android/ide/eclipse/ddms/systrace/SystraceTask.java | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/eclipse/plugins/com.android.ide.eclipse.ddms/src/com/android/ide/eclipse/ddms/systrace/SystraceTask.java b/eclipse/plugins/com.android.ide.eclipse.ddms/src/com/android/ide/eclipse/ddms/systrace/SystraceTask.java new file mode 100644 index 000000000..726296468 --- /dev/null +++ b/eclipse/plugins/com.android.ide.eclipse.ddms/src/com/android/ide/eclipse/ddms/systrace/SystraceTask.java @@ -0,0 +1,101 @@ +/* + * Copyright (C) 2012 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package com.android.ide.eclipse.ddms.systrace; + +import com.android.ddmlib.IDevice; +import com.android.ddmlib.IShellOutputReceiver; +import com.google.common.primitives.Bytes; + +public class SystraceTask implements Runnable { + private final IDevice mDevice; + private final String mOptions; + + private volatile boolean mCancel; + + private final Object mLock = new Object(); + private String errorMessage; + private boolean mTraceComplete; + private byte[] mBuffer = new byte[1024]; + private int mDataLength = 0; + + public SystraceTask(IDevice device, String options) { + mDevice = device; + mOptions = options; + } + + @Override + public void run() { + try { + mDevice.executeShellCommand("atrace " + mOptions, new Receiver(), 0); + } catch (Exception e) { + synchronized (mLock) { + errorMessage = "Unexpected error while running atrace on device: " + e; + } + } + } + + public void cancel() { + mCancel = true; + } + + public String getError() { + synchronized (mLock) { + return errorMessage; + } + } + + public byte[] getAtraceOutput() { + synchronized (mLock) { + return mTraceComplete ? mBuffer : null; + } + } + + private class Receiver implements IShellOutputReceiver { + @Override + public void addOutput(byte[] data, int offset, int length) { + synchronized (mLock) { + if (mDataLength + length > mBuffer.length) { + mBuffer = Bytes.ensureCapacity(mBuffer, mDataLength + length + 1, 1024); + } + + for (int i = 0; i < length; i++) { + mBuffer[mDataLength + i] = data[offset + i]; + } + mDataLength += length; + } + } + + @Override + public void flush() { + synchronized (mLock) { + // trim mBuffer to its final size + byte[] copy = new byte[mDataLength]; + for (int i = 0; i < mDataLength; i++) { + copy[i] = mBuffer[i]; + } + mBuffer = copy; + + mTraceComplete = true; + } + } + + @Override + public boolean isCancelled() { + return mCancel; + } + } +} |