protected synchronized void handlePollCalls(AsyncResult ar) {
List polledCalls;
if (ar.exception == null) {
polledCalls = (List) ar.result;
} else if (isCommandExceptionRadioNotAvailable(ar.exception)) {
// just a dummy empty ArrayList to cause the loop
// to hang up all the calls
polledCalls = new ArrayList();
} else {
// Radio probably wasn't ready--try again in a bit
// But don't keep polling if the channel is closed
pollCallsAfterDelay();
return;
}
Connection newRinging = null; // or waiting
boolean hasNonHangupStateChanged = false; // Any change besides
// a dropped connection
boolean needsPollDelay = false;
boolean unknownConnectionAppeared = false;
for (int i = 0, curDC = 0, dcSize = polledCalls.size(); i < connections.length; i++) {
GsmConnection conn = connections[i];
DriverCall dc = null;
// polledCall list is sparse
if (curDC < dcSize) {
dc = (DriverCall) polledCalls.get(curDC);
if (dc.index == i + 1) {
curDC++;
} else {
dc = null;
}
}
if (DBG_POLL) log("poll: conn[i=" + i + "]=" + conn + ", dc=" + dc);
if (conn == null && dc != null) {
// Connection appeared in CLCC response that we don't know about
if (pendingMO != null && pendingMO.compareTo(dc)) {
if (DBG_POLL) log("poll: pendingMO=" + pendingMO);
// It's our pending mobile originating call
connections[i] = pendingMO;
pendingMO.index = i;
pendingMO.update(dc);
pendingMO = null;
// Someone has already asked to hangup this call
if (hangupPendingMO) {
hangupPendingMO = false;
try {
if (Phone.DEBUG_PHONE) log("poll: hangupPendingMO, hangup conn " + i);
hangup(connections[i]);
} catch (CallStateException ex) {
Rlog.e(LOG_TAG, "unexpected error on hangup");
}
// Do not continue processing this poll
// Wait for hangup and repoll
return;
}
} else {
connections[i] = new GsmConnection(phone.getContext(), dc, this, i);
// it's a ringing call
if (connections[i].getCall() == ringingCall) {
newRinging = connections[i];
} else {
// Something strange happened: a call appeared
// which is neither a ringing call or one we created.
// Either we've crashed and re-attached to an existing
// call, or something else (eg, SIM) initiated the call.
Rlog.i(LOG_TAG, "Phantom call appeared " + dc);
// If it's a connected call, set the connect time so that
// it's non-zero. It may not be accurate, but at least
// it won't appear as a Missed Call.
if (dc.state != DriverCall.State.ALERTING && dc.state != DriverCall.State.DIALING) {
connections[i].onConnectedInOrOut();
if (dc.state == DriverCall.State.HOLDING) {
// We've transitioned into HOLDING
connections[i].onStartedHolding();
}
}
unknownConnectionAppeared = true;
}
}
hasNonHangupStateChanged = true;
} else if (conn != null && dc == null) {
// Connection missing in CLCC response that we were
// tracking.
droppedDuringPoll.add(conn);
// Dropped connections are removed from the CallTracker
// list but kept in the GsmCall list
connections[i] = null;
} else if (conn != null && dc != null && !conn.compareTo(dc)) {
// Connection in CLCC response does not match what
// we were tracking. Assume dropped call and new call
droppedDuringPoll.add(conn);
connections[i] = new GsmConnection(phone.getContext(), dc, this, i);
if (connections[i].getCall() == ringingCall) {
newRinging = connections[i];
} // else something strange happened
hasNonHangupStateChanged = true;
} else if (conn != null && dc != null) {
/* implicit conn.compareTo(dc) */
boolean changed;
changed = conn.update(dc);
hasNonHangupStateChanged = hasNonHangupStateChanged || changed;
}
if (REPEAT_POLLING) {
if (dc != null) {
// FIXME with RIL, we should not need this anymore
if ((dc.state == DriverCall.State.DIALING
/*&& cm.getOption(cm.OPTION_POLL_DIALING)*/ )
|| (dc.state == DriverCall.State.ALERTING
/*&& cm.getOption(cm.OPTION_POLL_ALERTING)*/ )
|| (dc.state == DriverCall.State.INCOMING
/*&& cm.getOption(cm.OPTION_POLL_INCOMING)*/ )
|| (dc.state == DriverCall.State.WAITING
/*&& cm.getOption(cm.OPTION_POLL_WAITING)*/ )) {
// Sometimes there's no unsolicited notification
// for state transitions
needsPollDelay = true;
}
}
}
}
// This is the first poll after an ATD.
// We expect the pending call to appear in the list
// If it does not, we land here
if (pendingMO != null) {
Rlog.d(LOG_TAG, "Pending MO dropped before poll fg state:" + foregroundCall.getState());
droppedDuringPoll.add(pendingMO);
pendingMO = null;
hangupPendingMO = false;
}
if (newRinging != null) {
phone.notifyNewRingingConnection(newRinging);
}
// clear the "local hangup" and "missed/rejected call"
// cases from the "dropped during poll" list
// These cases need no "last call fail" reason
for (int i = droppedDuringPoll.size() - 1; i >= 0; i--) {
GsmConnection conn = droppedDuringPoll.get(i);
if (conn.isIncoming() && conn.getConnectTime() == 0) {
// Missed or rejected call
Connection.DisconnectCause cause;
if (conn.cause == Connection.DisconnectCause.LOCAL) {
cause = Connection.DisconnectCause.INCOMING_REJECTED;
} else {
cause = Connection.DisconnectCause.INCOMING_MISSED;
}
if (Phone.DEBUG_PHONE) {
log("missed/rejected call, conn.cause=" + conn.cause);
log("setting cause to " + cause);
}
droppedDuringPoll.remove(i);
conn.onDisconnect(cause);
} else if (conn.cause == Connection.DisconnectCause.LOCAL) {
// Local hangup
droppedDuringPoll.remove(i);
conn.onDisconnect(Connection.DisconnectCause.LOCAL);
} else if (conn.cause == Connection.DisconnectCause.INVALID_NUMBER) {
droppedDuringPoll.remove(i);
conn.onDisconnect(Connection.DisconnectCause.INVALID_NUMBER);
}
}
// Any non-local disconnects: determine cause
if (droppedDuringPoll.size() > 0) {
cm.getLastCallFailCause(obtainNoPollCompleteMessage(EVENT_GET_LAST_CALL_FAIL_CAUSE));
}
if (needsPollDelay) {
pollCallsAfterDelay();
}
// Cases when we can no longer keep disconnected Connection's
// with their previous calls
// 1) the phone has started to ring
// 2) A Call/Connection object has changed state...
// we may have switched or held or answered (but not hung up)
if (newRinging != null || hasNonHangupStateChanged) {
internalClearDisconnected();
}
updatePhoneState();
if (unknownConnectionAppeared) {
phone.notifyUnknownConnection();
}
if (hasNonHangupStateChanged || newRinging != null) {
phone.notifyPreciseCallStateChanged();
}
// dumpState();
}
void clearDisconnected() {
internalClearDisconnected();
updatePhoneState();
phone.notifyPreciseCallStateChanged();
}