// returns 0 for OK, -1 for exception
int ManagedDatasource::closeUnlocked(ExceptionSink *xsink) {
int rc = 0;
if (grabLock(xsink))
return -1;
if (isOpen()) {
if (isInTransaction()) {
if (!wasConnectionAborted()) {
// FIXME: check for statement
xsink->raiseException("DATASOURCE-TRANSACTION-EXCEPTION", "%s:%s@%s: Datasource closed while in a transaction; transaction will be automatically rolled back and the lock released", getDriverName(), getUsernameStr().c_str(), getDBNameStr().c_str());
Datasource::rollback(xsink);
}
remove_thread_resource(this);
setTransactionStatus(false);
// force-exit the transaction lock
forceReleaseLockIntern();
rc = -1;
}
Datasource::close();
}
return rc;
}
void SessionInitialiser::execute()
{
Scope x( log() );
SessionInitialiserData::State state = d->state;
do {
state = d->state;
switch ( d->state ) {
case SessionInitialiserData::NoTransaction:
findSessions();
if ( d->sessions.isEmpty() ) {
emitUpdates();
d->state = SessionInitialiserData::QueriesDone;
}
else {
grabLock();
d->state = SessionInitialiserData::WaitingForLock;
}
break;
case SessionInitialiserData::SessionInitialiserData::WaitingForLock:
findRecent();
if ( !d->recent || d->recent->done() )
d->state = SessionInitialiserData::HaveUidnext;
break;
case SessionInitialiserData::HaveUidnext:
findMailboxChanges();
d->state = SessionInitialiserData::ReceivingChanges;
break;
case SessionInitialiserData::ReceivingChanges:
recordMailboxChanges();
recordExpunges();
if ( d->messages->done() &&
( !d->expunges || d->expunges->done() ) )
d->state = SessionInitialiserData::Updated;
break;
case SessionInitialiserData::Updated:
releaseLock(); // may change d->state
break;
case SessionInitialiserData::QueriesDone:
break;
}
} while ( state != d->state );
if ( d->t && d->t->failed() ) {
releaseLock();
d->t = 0;
}
// when we come down here, we either have a callback from a query
// or we don't. if we don't, we're done and Allocator will deal
// with the object.
}
int ManagedDatasource::startDBAction(ExceptionSink *xsink, bool &new_transaction) {
AutoLocker al(&ds_lock);
// save previous trans lock status
new_transaction = (tid != gettid());
// first grab the transaction lock
if (grabLock(xsink))
return -1;
// open the datasource if necessary
if (!isOpen() && (Datasource::open(xsink) || *xsink)) {
// release transaction lock if necessary
if (new_transaction)
releaseLockIntern();
return -1;
}
//printd(0, "ManagedDatasource::startDBAction() this=%p need_lock=%d new_trans=%p had_lock=%d\n", this, need_transaction_lock, new_transaction, had_lock);
return 0;
}
