public object Accept(int timeout, out S service)
{
lock (_lock)
{
var myTicket = new Ticket();
if (_services.Count != 0)
{
RemoveFirstRequestedToken(ref myTicket);
service = myTicket.token.service;
var token = myTicket.token;
return(token);
}
myTicket._condition = new Object();
myTicket.processing = Status.Accepting;
_services.AddLast(myTicket);
int lastTime = (timeout != Timeout.Infinite) ? Environment.TickCount : 0;
while (true)
{
SyncUtils.Wait(_lock, myTicket._condition, timeout);
if (myTicket.processing == Status.InProcess)
{
service = myTicket.token.service;
return(myTicket.token);
}
if (SyncUtils.AdjustTimeout(ref lastTime, ref timeout) == 0)
{
_services.Remove(myTicket);
service = default(S);
return(null);
}
}
}
}
public bool Request(S service, int timeout, out R response)
{
lock (_lock)
{
Ticket myTicket;
if (CheckForAcceptingTokens(out myTicket, service))
{
SyncUtils.Notify(_lock, myTicket._condition);
}
else
{
myTicket.token = new Token(service);
myTicket._condition = new Object();
_services.AddLast(myTicket);
}
int lastTime = (timeout != Timeout.Infinite) ? Environment.TickCount : 0;
while (true)
{
try
{
SyncUtils.Wait(_lock, myTicket._condition, timeout);
if (myTicket.processing == Status.Concluded)
{
response = myTicket.token.response;
return(true);
}
if (SyncUtils.AdjustTimeout(ref lastTime, ref timeout) == 0 &&
myTicket.processing == Status.Open)
{
_services.Remove(myTicket);
response = default(R);
return(false);
}
}
catch (ThreadInterruptedException e)
{
if (myTicket.processing == Status.Open)
{
Thread.CurrentThread.Interrupt();
_services.Remove(myTicket);
response = default(R);
return(false);
}
if (myTicket.processing == Status.Concluded)
{
response = myTicket.token.response;
return(true);
}
timeout = Timeout.Infinite;
}
}
}
}
private void FindTokenInProcessingRequests(ref Token myToken, R response)
{
foreach (Ticket ticket in _processingRequests)
{
if (ticket.token.Equals(myToken))
{
myToken.response = response;
ticket.processing = Status.Concluded;
_processingRequests.Remove(ticket);
SyncUtils.Notify(_lock, ticket._condition);
return;
}
}
}
public bool WaitForCompletion(int timeout)
{
lock (this)
{
if (_complete)
{
return(true);
}
if (_permits > 0)
{
_permits--;
return(true);
}
int lastTime = (timeout != Timeout.Infinite) ? Environment.TickCount : 0;
while (true)
{
try
{
Monitor.Wait(this);
if (_complete)
{
return(true);
}
if (_permits > 0)
{
_permits--;
return(true);
}
if (SyncUtils.AdjustTimeout(ref lastTime, ref timeout) == 0)
{
return(false);
}
}
catch (Exception e)
{
Thread.CurrentThread.Interrupt();
throw new ThreadInterruptedException();
}
}
}
}
