| /* |
| * 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; |
| } |
| } |
| } |