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Diffstat (limited to 'src/com/android/camera/CameraThread.java')
-rw-r--r-- | src/com/android/camera/CameraThread.java | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/src/com/android/camera/CameraThread.java b/src/com/android/camera/CameraThread.java new file mode 100644 index 0000000..ba888bf --- /dev/null +++ b/src/com/android/camera/CameraThread.java @@ -0,0 +1,95 @@ +/* + * Copyright (C) 2007 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.camera; + +import android.os.Process; + +public class CameraThread { + private Thread mThread; + private int mTid; + private boolean mTidSet; + private boolean mFinished; + + synchronized private void setTid(int tid) { + mTid = tid; + mTidSet = true; + CameraThread.this.notifyAll(); + } + + synchronized private void setFinished() { + mFinished = true; + } + + public CameraThread(final Runnable r) { + Runnable wrapper = new Runnable() { + public void run() { + setTid(Process.myTid()); + try { + r.run(); + } finally { + setFinished(); + } + } + }; + + mThread = new Thread(wrapper); + } + + synchronized public void start() { + mThread.start(); + } + + synchronized public void setName(String name) { + mThread.setName(name); + } + + public void join() { + try { + mThread.join(); + } catch (InterruptedException ex) { + // ok? + } + } + + public long getId() { + return mThread.getId(); + } + + public Thread realThread() { + return mThread; + } + + synchronized public void setPriority(int androidOsPriority) { + while (!mTidSet) { + try { + CameraThread.this.wait(); + } catch (InterruptedException ex) { + // ok, try again + } + } + if (!mFinished) + Process.setThreadPriority(mTid, androidOsPriority); + } + + synchronized public void toBackground() { + setPriority(Process.THREAD_PRIORITY_BACKGROUND); + } + + synchronized public void toForeground() { + setPriority(Process.THREAD_PRIORITY_FOREGROUND); + } +} |