// constructor
public EpollHandler(EpollServer server)
: base() // base class is a reusable HttpCtx
{
this.server = server;
bufferHandle = GCHandle.Alloc(Buffer, GCHandleType.Pinned);
bufferPtr = bufferHandle.AddrOfPinnedObject();
state = EState.Idle;
totalRead = 0;
totalWritten = 0;
}
// constructor
public EpollListener(EpollServer server)
{
this.server = server; // for creating handlers
// create the epoll fd
epfd = Syscall.epoll_create(1);
if (epfd < 0)
{
throw new Exception($"Call to {nameof(Syscall.epoll_create)} failed with code: {Stdlib.GetLastError()}");
}
// create and attach the listener socket
listenerSocket = Syscall.socket(UnixAddressFamily.AF_INET, UnixSocketType.SOCK_STREAM, UnixSocketProtocol.IPPROTO_TCP);
Log.Epoll("Listener socket is {0}", listenerSocket);
OnAttach(listenerSocket);
// bind to port 80
var endpoint = new IPEndPoint(IPAddress.Any, 80);
bind(endpoint, 1024);
Log.Info("Listening on port " + endpoint.Port);
}
public void Tick()
{
int useTimeout = 0; // using timeout is dangerous with cached requests
switch (Phase)
{
case EPhase.P01:
if (getCounter > 0)
{
Phase = EPhase.P1;
OnPhaseChanged(Phase);
Log.Info("Phase 1 has started");
lastCall = Stats.Watch.Elapsed;
}
break;
case EPhase.P1:
if (getCounter >= phase1Gets || useTimeout > 0 && (Stats.Watch.Elapsed - lastCall) > TimeSpan.FromMilliseconds(useTimeout))
{
Phase = EPhase.P12;
OnPhaseChanged(Phase);
Log.Info("Phase 1 has ended");
GetGroup.CachedResults.Clear();
GetFilter.CachedResults.Clear();
Garbage.CollectAll();
}
if (postCounter > 0 /*how did we miss it?*/)
{
GetGroup.CachedResults.Clear();
GetFilter.CachedResults.Clear();
Phase = EPhase.P2;
OnPhaseChanged(Phase);
Log.Info("Phase 2 has started unexpectedly");
}
break;
case EPhase.P12:
if (postCounter > 0)
{
Phase = EPhase.P2;
OnPhaseChanged(Phase);
Log.Info("Phase 2 has started");
lastCall = Stats.Watch.Elapsed;
}
break;
case EPhase.P2:
if (postCounter >= phase2Posts || useTimeout > 0 && (Stats.Watch.Elapsed - lastCall) > TimeSpan.FromMilliseconds(useTimeout))
{
Phase = EPhase.P23;
OnPhaseChanged(Phase);
Log.Info("Phase 2 has ended");
GetGroup.CachedResults.Clear();
GetFilter.CachedResults.Clear();
Garbage.CollectAll();
store.Prepare(false);
Garbage.CollectAll();
}
break;
case EPhase.P23:
if (getCounter > phase1Gets)
{
Phase = EPhase.P3;
OnPhaseChanged(Phase);
Log.Info("Phase 3 has started");
lastCall = Stats.Watch.Elapsed;
}
break;
case EPhase.P3:
if (getCounter >= phase1Gets + phase3Gets || useTimeout > 0 && (Stats.Watch.Elapsed - lastCall) > TimeSpan.FromMilliseconds(useTimeout))
{
Phase = EPhase.PEND;
OnPhaseChanged(Phase);
Log.Info("Phase 3 has ended");
Stats.DisplayContextTime();
Mapper.DisplayStats();
EpollServer.DisplayServerStats();
}
break;
}
// 5 sec report
var now = Stats.Watch.Elapsed;
if ((now - lastReport).TotalMilliseconds > 4000)
{
lastReport = now;
if (Phase != EPhase.P01)
{
Console.WriteLine("{0} M{1} S{2}/{3}", lastReport.ToString(@"mm\:ss"),
GC.GetTotalMemory(false) / 1024 / 1024, EpollHandler.OpenedSockets, EpollHandler.ClosedSockets);
}
}
}