74 lines
2.3 KiB
Java
74 lines
2.3 KiB
Java
/*
|
|
* Copyright (C) 2010, 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.server.sip;
|
|
|
|
import android.os.PowerManager;
|
|
import android.telephony.Rlog;
|
|
|
|
import java.util.HashSet;
|
|
|
|
class SipWakeLock {
|
|
private static final String TAG = "SipWakeLock";
|
|
private static final boolean DBG = false;
|
|
private PowerManager mPowerManager;
|
|
private PowerManager.WakeLock mWakeLock;
|
|
private PowerManager.WakeLock mTimerWakeLock;
|
|
private HashSet<Object> mHolders = new HashSet<Object>();
|
|
|
|
SipWakeLock(PowerManager powerManager) {
|
|
mPowerManager = powerManager;
|
|
}
|
|
|
|
synchronized void reset() {
|
|
if (DBG) log("reset count=" + mHolders.size());
|
|
mHolders.clear();
|
|
release(null);
|
|
}
|
|
|
|
synchronized void acquire(long timeout) {
|
|
if (mTimerWakeLock == null) {
|
|
mTimerWakeLock = mPowerManager.newWakeLock(
|
|
PowerManager.PARTIAL_WAKE_LOCK, "SipWakeLock.timer");
|
|
mTimerWakeLock.setReferenceCounted(true);
|
|
}
|
|
mTimerWakeLock.acquire(timeout);
|
|
}
|
|
|
|
synchronized void acquire(Object holder) {
|
|
mHolders.add(holder);
|
|
if (mWakeLock == null) {
|
|
mWakeLock = mPowerManager.newWakeLock(
|
|
PowerManager.PARTIAL_WAKE_LOCK, "SipWakeLock");
|
|
}
|
|
if (!mWakeLock.isHeld()) mWakeLock.acquire();
|
|
if (DBG) log("acquire count=" + mHolders.size());
|
|
}
|
|
|
|
synchronized void release(Object holder) {
|
|
mHolders.remove(holder);
|
|
if ((mWakeLock != null) && mHolders.isEmpty()
|
|
&& mWakeLock.isHeld()) {
|
|
mWakeLock.release();
|
|
}
|
|
if (DBG) log("release count=" + mHolders.size());
|
|
}
|
|
|
|
private void log(String s) {
|
|
Rlog.d(TAG, s);
|
|
}
|
|
}
|