private Connection FindMatchingConnection(HttpWebRequest request, string connName, out Connection leastbusyConnection) {
int minBusyCount = Int32.MaxValue;
bool freeConnectionsAvail = false;
leastbusyConnection = null;
lock (m_ConnectionList) {
//
// go through the list of open connections to this service point and pick
// the first empty one or, if none is empty, pick the least busy one.
//
minBusyCount = Int32.MaxValue;
foreach (Connection currentConnection in m_ConnectionList) {
GlobalLog.Print("ConnectionGroup::FindMatchingConnection currentConnection.BusyCount:" + currentConnection.BusyCount.ToString());
if (currentConnection.LockedRequest == request) {
leastbusyConnection = currentConnection;
return currentConnection;
}
GlobalLog.Print("ConnectionGroup::FindMatchingConnection: lockedRequest# " + ((currentConnection.LockedRequest == null) ? "null" : currentConnection.LockedRequest.GetHashCode().ToString()));
if (currentConnection.BusyCount < minBusyCount && currentConnection.LockedRequest == null) {
leastbusyConnection = currentConnection;
minBusyCount = currentConnection.BusyCount;
if (minBusyCount == 0) {
freeConnectionsAvail = true;
}
}
}
//
// If there is NOT a Connection free, then we allocate a new Connection
//
if (!freeConnectionsAvail && CurrentConnections < ConnectionLimit) {
//
// If we can create a new connection, then do it,
// this may have complications in pipeling because
// we may wish to optimize this case by actually
// using existing connections, rather than creating new ones
//
// Note: this implicately results in a this.Associate being called.
//
GlobalLog.Print("ConnectionGroup::FindMatchingConnection [returning new Connection] CurrentConnections:" + CurrentConnections.ToString() + " ConnectionLimit:" + ConnectionLimit.ToString());
leastbusyConnection = new Connection(this);
}
}
return null; // only if we have a locked Connection that matches can return non-null
}
