/// <summary>
/// Queues a method for execution, and specifies an object containing data to be used by the method. The method executes when a thread pool thread becomes available.
/// </summary>
/// <param name="callBack">A <see cref="WaitCallback"/> representing the method to execute.</param>
/// <param name="state">An object containing data to be used by the method.</param>
/// <returns><see langword="true"/> if the method is successfully queued; <see cref="NotSupportedException"/> is thrown if the work item could not be queued.</returns>
public static bool QueueUserWorkItem(WaitCallback callBack, object state)
{
ThreadWorker worker = GetOrCreateFreeWorker();
if (worker != null)
{
worker.Post(callBack, state);
return(true);
}
//queue a work item that is not bound to a specific thread context
return(pendingWorks.Enqueue(new WorkItem(callBack, state)));
}
/// <summary>
/// Queues a method specified by an System.Action`1 delegate for execution, and provides data to be used by the method. The method executes when a thread pool thread becomes available.
/// </summary>
/// <typeparam name="TState">The type of elements of state.</typeparam>
/// <param name="callBack">An Action representing the method to execute.</param>
/// <param name="state">An object containing data to be used by the method.</param>
/// <param name="preferLocal"><see langword="true"/> to prefer queueing the work item in a queue close to the current thread; <see langword="false"/> to prefer queueing the work item to the thread pool's shared queue.</param>
/// <returns><see langword="true"/> if the method is successfully queued; <see cref="NotSupportedException"/> is thrown if the work item could not be queued. </returns>
public static bool QueueUserWorkItem <TState>(Action <TState> callBack, TState state, bool preferLocal)
{
if (preferLocal)
{
throw new Exception("PreferLocal:true not supported");
}
ThreadWorker worker = GetOrCreateFreeWorker();
if (worker != null)
{
worker.Post((_) => callBack(state), null);
return(true);
}
return(pendingWorks.Enqueue(new WorkItem((_) => callBack(state), state)));
}
static internal void RunPendingWorkItems(ThreadWorker callingWorker)
{
lock (mlock)
{
//first find the first workitem that was requested to be run on this calling worker and start it
for (int i = 0; i < pendingWorks.Count; i++)
{
//TODO: remove this workitem from queue, figured it will be removed below
WorkItem work = pendingWorks[i];
//if the work must be run on this thread
if (work.workerId == callingWorker.Id)
{
//post the job back to the callingWorker
callingWorker.Post(work.callBack, work.state);
}
}
//now run all other pending works on any available pool
while (pendingWorks.Count > 0)
{
//get an available pool
ThreadWorker pool = GetOrCreateFreeWorker();
if (pool != null)
{
do
{
WorkItem work = default;
if (pendingWorks.Dequeue(ref work))
{
//if the work can be run on any thread
if (work.workerId < 0)
{
pool.Post(work.callBack, work.state);
}
else
{
continue;
}
}
} while (false);
}
}
}
}
internal static bool QueueUserWorkItemOnSpecificWorker(int threadId, WaitCallback callBack, object state)
{
ThreadWorker worker = GetWorkerById(threadId);
if (worker == null)
{
throw new Exception($"No such worker with id {threadId}");
}
if (worker.IsFree)
{
worker.Post(callBack, state);
return(true);
}
else
{
//queue a work item that is bound to a specific thread context(threadId)
return(pendingWorks.Enqueue(new WorkItem((_) => callBack(state), state, threadId)));
}
}
public async Task <ushort> SendData(byte[] data)
{
try
{
await locker.WaitAsync();
await Task.Delay(1000);
ushort _messageId = (ushort)storage.GetShort(device.Id, "message-id", 0);
var ___messageId = _messageId + 1;
storage.PutShort(device.Id, "message-id", (short)___messageId);
i++;
if (i % 8 == 0)
{
throw new Exception("Dummy send error");
}
var m = Message.Unpack(data, new InMemoryBuffer());
if (m is BalanceMO balance)
{
thread.PostDelayed(() =>
{
var balanceMT = BalanceMT.Create(ProtocolVersion.v3__WeatherExtension, DateTime.UtcNow, DateTime.UtcNow.AddDays(-12), DateTime.UtcNow.AddDays(30), 672, 1000, 328).Pack();
PacketReceived(this, new PacketReceivedEventArgs()
{
Payload = balanceMT[0].Payload,
MessageId = (short)(10006 + ___messageId),
});
}, TimeSpan.FromSeconds(15));
}
if (m is MessageSentMO sent)
{
thread.PostDelayed(() =>
{
var resendIndexes = new byte[resendParts];
for (int k = 0; k < resendParts; k++)
{
resendIndexes[k] = (byte)k;
}
resendParts -= 2;
if (resendParts < 0)
{
resendParts = 2;
}
var ack = MessageAckMT.Create(ProtocolVersion.v3__WeatherExtension, (byte)sent.SentGroup, resendIndexes).Pack();
PacketReceived(this, new PacketReceivedEventArgs()
{
Payload = ack[0].Payload,
MessageId = (short)(10005 + ___messageId),
});
}, TimeSpan.FromSeconds(10));
}
thread.Post(async() =>
{
await Task.Delay(TimeSpan.FromSeconds(4));
PacketStatusUpdated(this, new PacketStatusUpdatedEventArgs()
{
MessageId = (short)_messageId,
Status = MessageStatus.Transmitted,
});
//await Task.Delay(TimeSpan.FromSeconds(6));
//var m = Message.Unpack(data) as ChatMessageMO;
//if (m != null && m.TotalParts == 1)
//{
//var p = ChatMessageMT.Create(m.Version, m.Subscriber, m.Id, m.Conversation, m.Text, m.Lat, m.Lon, m.Alt, m.ByskyToken, m.File, m.FileExtension, m.ImageQuality, m.Subject).Pack();
//PacketReceived(this, new PacketReceivedEventArgs()
//{
// Payload = p[0].Payload,
// MessageId = (short)(10000 + ___messageId),
//});
//}
});
return(_messageId);
}
finally
{
locker.Release();
}
}