/// <summary>
/// Initializes an event based on a native C event.
/// </summary>
/// <param name="event">The native C event.</param>
public Event(ENetEvent @event)
{
this = new Event()
{
NativeData = @event
};
}
protected int CheckEvents(out Event e)
{
var enetEv = new ENetEvent();
int ret = NativeMethods.enet_host_check_events(this.host, enetEv);
e = new Event(enetEv);
return(ret);
}
private EEvent GetEvent()
{
var enetEv = new ENetEvent();
int ret = NativeMethods.EnetHostCheckEvents(this.host, enetEv);
if (ret <= 0)
{
return(null);
}
var e = new EEvent(enetEv);
return(e);
}
/// <summary>
/// Sends queued outgoing packets, receives incoming packets, and handles connection events.
/// </summary>
/// <param name="timeout">Timeout in milliseconds to wait for an event. For polling, use 0.</param>
/// <param name="event">The event.</param>
/// <returns>True if an event occured, otherwise false.</returns>
/// <exception cref="ArgumentOutOfRangeException"><paramref name="timeout"/> is negative.</exception>
/// <exception cref="InvalidOperationException">The host is not initialized.</exception>
/// <exception cref="ENetException">An error occured.</exception>
public bool Service(int timeout, out Event @event)
{
if (timeout < 0)
{
throw new ArgumentOutOfRangeException("timeout");
}
CheckInitialized(); ENetEvent nativeEvent = new ENetEvent();
// As of 1.3.6, ENet is not signal safe, and Mono uses signals for garbage collection.
//
// So, there's really nothing better we can do than retry. Luckily the cases that return -1
// are cases that return immediately or this could cause lockups.
//
// The entire situation is still very dicey with MonoDevelop.
// A proper fix really has to be done in the ENet native library.
// If you want to eliminate this entirely and don't care about these spurious
// failures of enet_host_service, try/catch the ENetException and just ignore it.
// That's essentially what I am doing here, except with an upper limit so real errors
// can get through...
int ret = -1;
for (int nretries = 0; nretries < 1000 && ret == -1; nretries++)
{
ret = ENetApi.enet_host_service(NativeData, out nativeEvent, (uint)timeout);
}
if (ret < 0)
{
throw new ENetException(string.Format("Service failed (native data {0}).", (IntPtr)NativeData));
}
if (ret == 0)
{
@event = new Event(); return(false);
}
@event = new Event(nativeEvent); return(true);
}
internal Event(ENetEvent @event)
{
nativeEvent = @event;
}
internal static extern int enet_host_check_events(IntPtr host, out ENetEvent @event);
internal static extern int enet_host_service(IntPtr host, out ENetEvent @event, uint timeout);
public static extern int enet_host_check_events(ENetHost *host, out ENetEvent @event);
public static extern int enet_host_service(ENetHost *host, out ENetEvent @event, uint timeout);
public Event(ENetEvent @event)
{
nativeEvent = @event;
}
public Event(ENetEvent ev)
{
this.ev = ev;
}
internal static extern int EnetHostService(IntPtr host, ENetEvent ev, uint timeout);
internal static extern int EnetHostCheckEvents(IntPtr host, ENetEvent ev);
internal static extern int enet_host_check_events(IntPtr host, ENetEvent ev);
