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来源:互联网 发布:python class 自己 编辑:程序博客网 时间:2024/06/05 18:17
void stepLightIdleStateLocked(String reason) {
if (mLightState == LIGHT_STATE_OVERRIDE) {
// If we are already in deep device idle mode, then
// there is nothing left to do for light mode.
return;
}
if (DEBUG) Slog.d(TAG, "stepLightIdleStateLocked: mLightState=" + mLightState);
EventLogTags.writeDeviceIdleLightStep();
switch (mLightState) {
case LIGHT_STATE_INACTIVE:
mCurIdleBudget = mConstants.LIGHT_IDLE_MAINTENANCE_MIN_BUDGET;
// Reset the upcoming idle delays.
mNextLightIdleDelay = mConstants.LIGHT_IDLE_TIMEOUT;
mMaintenanceStartTime = 0;
if (!isOpsInactiveLocked()) {
// We have some active ops going on... give them a chance to finish
// before going in to our first idle.
mLightState = LIGHT_STATE_PRE_IDLE;
EventLogTags.writeDeviceIdleLight(mLightState, reason);
scheduleLightAlarmLocked(mConstants.LIGHT_PRE_IDLE_TIMEOUT);
break;
}
// Nothing active, fall through to immediately idle.
case LIGHT_STATE_PRE_IDLE:
case LIGHT_STATE_IDLE_MAINTENANCE:
if (mMaintenanceStartTime != 0) {
long duration = SystemClock.elapsedRealtime() - mMaintenanceStartTime;
if (duration < mConstants.LIGHT_IDLE_MAINTENANCE_MIN_BUDGET) {
// We didn't use up all of our minimum budget; add this to the reserve.
mCurIdleBudget += (mConstants.LIGHT_IDLE_MAINTENANCE_MIN_BUDGET-duration);
} else {
// We used more than our minimum budget; this comes out of the reserve.
mCurIdleBudget -= (duration-mConstants.LIGHT_IDLE_MAINTENANCE_MIN_BUDGET);
}
}
mMaintenanceStartTime = 0;
scheduleLightAlarmLocked(mNextLightIdleDelay);
mNextLightIdleDelay = Math.min(mConstants.LIGHT_MAX_IDLE_TIMEOUT,
(long)(mNextLightIdleDelay * mConstants.LIGHT_IDLE_FACTOR));
if (mNextLightIdleDelay < mConstants.LIGHT_IDLE_TIMEOUT) {
mNextLightIdleDelay = mConstants.LIGHT_IDLE_TIMEOUT;
}
if (DEBUG) Slog.d(TAG, "Moved to LIGHT_STATE_IDLE.");
mLightState = LIGHT_STATE_IDLE;
EventLogTags.writeDeviceIdleLight(mLightState, reason);
addEvent(EVENT_LIGHT_IDLE);
mHandler.sendEmptyMessage(MSG_REPORT_IDLE_ON_LIGHT);
break;
case LIGHT_STATE_IDLE:
case LIGHT_STATE_WAITING_FOR_NETWORK:
if (mNetworkConnected || mLightState == LIGHT_STATE_WAITING_FOR_NETWORK) {
// We have been idling long enough, now it is time to do some work.
mActiveIdleOpCount = 1;
mActiveIdleWakeLock.acquire();
mMaintenanceStartTime = SystemClock.elapsedRealtime();
if (mCurIdleBudget < mConstants.LIGHT_IDLE_MAINTENANCE_MIN_BUDGET) {
mCurIdleBudget = mConstants.LIGHT_IDLE_MAINTENANCE_MIN_BUDGET;
} else if (mCurIdleBudget > mConstants.LIGHT_IDLE_MAINTENANCE_MAX_BUDGET) {
mCurIdleBudget = mConstants.LIGHT_IDLE_MAINTENANCE_MAX_BUDGET;
}
scheduleLightAlarmLocked(mCurIdleBudget);
if (DEBUG) Slog.d(TAG,
"Moved from LIGHT_STATE_IDLE to LIGHT_STATE_IDLE_MAINTENANCE.");
mLightState = LIGHT_STATE_IDLE_MAINTENANCE;
EventLogTags.writeDeviceIdleLight(mLightState, reason);
addEvent(EVENT_LIGHT_MAINTENANCE);
mHandler.sendEmptyMessage(MSG_REPORT_IDLE_OFF);
} else {
// We'd like to do maintenance, but currently don't have network
// connectivity... let's try to wait until the network comes back.
// We'll only wait for another full idle period, however, and then give up.
scheduleLightAlarmLocked(mNextLightIdleDelay);
if (DEBUG) Slog.d(TAG, "Moved to LIGHT_WAITING_FOR_NETWORK.");
mLightState = LIGHT_STATE_WAITING_FOR_NETWORK;
EventLogTags.writeDeviceIdleLight(mLightState, reason);
}
break;
}
}
if (mLightState == LIGHT_STATE_OVERRIDE) {
// If we are already in deep device idle mode, then
// there is nothing left to do for light mode.
return;
}
if (DEBUG) Slog.d(TAG, "stepLightIdleStateLocked: mLightState=" + mLightState);
EventLogTags.writeDeviceIdleLightStep();
switch (mLightState) {
case LIGHT_STATE_INACTIVE:
mCurIdleBudget = mConstants.LIGHT_IDLE_MAINTENANCE_MIN_BUDGET;
// Reset the upcoming idle delays.
mNextLightIdleDelay = mConstants.LIGHT_IDLE_TIMEOUT;
mMaintenanceStartTime = 0;
if (!isOpsInactiveLocked()) {
// We have some active ops going on... give them a chance to finish
// before going in to our first idle.
mLightState = LIGHT_STATE_PRE_IDLE;
EventLogTags.writeDeviceIdleLight(mLightState, reason);
scheduleLightAlarmLocked(mConstants.LIGHT_PRE_IDLE_TIMEOUT);
break;
}
// Nothing active, fall through to immediately idle.
case LIGHT_STATE_PRE_IDLE:
case LIGHT_STATE_IDLE_MAINTENANCE:
if (mMaintenanceStartTime != 0) {
long duration = SystemClock.elapsedRealtime() - mMaintenanceStartTime;
if (duration < mConstants.LIGHT_IDLE_MAINTENANCE_MIN_BUDGET) {
// We didn't use up all of our minimum budget; add this to the reserve.
mCurIdleBudget += (mConstants.LIGHT_IDLE_MAINTENANCE_MIN_BUDGET-duration);
} else {
// We used more than our minimum budget; this comes out of the reserve.
mCurIdleBudget -= (duration-mConstants.LIGHT_IDLE_MAINTENANCE_MIN_BUDGET);
}
}
mMaintenanceStartTime = 0;
scheduleLightAlarmLocked(mNextLightIdleDelay);
mNextLightIdleDelay = Math.min(mConstants.LIGHT_MAX_IDLE_TIMEOUT,
(long)(mNextLightIdleDelay * mConstants.LIGHT_IDLE_FACTOR));
if (mNextLightIdleDelay < mConstants.LIGHT_IDLE_TIMEOUT) {
mNextLightIdleDelay = mConstants.LIGHT_IDLE_TIMEOUT;
}
if (DEBUG) Slog.d(TAG, "Moved to LIGHT_STATE_IDLE.");
mLightState = LIGHT_STATE_IDLE;
EventLogTags.writeDeviceIdleLight(mLightState, reason);
addEvent(EVENT_LIGHT_IDLE);
mHandler.sendEmptyMessage(MSG_REPORT_IDLE_ON_LIGHT);
break;
case LIGHT_STATE_IDLE:
case LIGHT_STATE_WAITING_FOR_NETWORK:
if (mNetworkConnected || mLightState == LIGHT_STATE_WAITING_FOR_NETWORK) {
// We have been idling long enough, now it is time to do some work.
mActiveIdleOpCount = 1;
mActiveIdleWakeLock.acquire();
mMaintenanceStartTime = SystemClock.elapsedRealtime();
if (mCurIdleBudget < mConstants.LIGHT_IDLE_MAINTENANCE_MIN_BUDGET) {
mCurIdleBudget = mConstants.LIGHT_IDLE_MAINTENANCE_MIN_BUDGET;
} else if (mCurIdleBudget > mConstants.LIGHT_IDLE_MAINTENANCE_MAX_BUDGET) {
mCurIdleBudget = mConstants.LIGHT_IDLE_MAINTENANCE_MAX_BUDGET;
}
scheduleLightAlarmLocked(mCurIdleBudget);
if (DEBUG) Slog.d(TAG,
"Moved from LIGHT_STATE_IDLE to LIGHT_STATE_IDLE_MAINTENANCE.");
mLightState = LIGHT_STATE_IDLE_MAINTENANCE;
EventLogTags.writeDeviceIdleLight(mLightState, reason);
addEvent(EVENT_LIGHT_MAINTENANCE);
mHandler.sendEmptyMessage(MSG_REPORT_IDLE_OFF);
} else {
// We'd like to do maintenance, but currently don't have network
// connectivity... let's try to wait until the network comes back.
// We'll only wait for another full idle period, however, and then give up.
scheduleLightAlarmLocked(mNextLightIdleDelay);
if (DEBUG) Slog.d(TAG, "Moved to LIGHT_WAITING_FOR_NETWORK.");
mLightState = LIGHT_STATE_WAITING_FOR_NETWORK;
EventLogTags.writeDeviceIdleLight(mLightState, reason);
}
break;
}
}
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