/// <summary>
/// request asynchronous
/// ordered by "serial"
/// </summary>
/// <param name="serial"></param>
/// <param name="pack"></param>
/// <returns></returns>
private async Task <RpcResult> RequestAsync(ushort serial, RpcPackage pack)
{
var tcs = new TaskCompletionSource <RpcResult>();
// call back in logic service
Action <bool, byte[]> cb =
(b, bytes) => GlobalVarPool.Ins.Service.Perform(() =>
{
tcs.SetResult(new RpcResult(b, bytes));
});
// callback pool
if (!_requestPool.TryAdd(serial, cb))
{
Logger.Ins.Error("Request of serial {0} already processing!", serial);
return(RpcResult.Failure);
}
// send
var sendRet = await SendAsync(PiSerializer.Serialize(pack));
if (!sendRet)
{
Action <bool, byte[]> _;
_requestPool.TryRemove(serial, out _);
_ = _ ?? cb;
_(false, null);
}
return(await tcs.Task);
}
private async Task <RpcResult> Response(bool success, byte[] data, ushort serial)
{
var pack = new RpcPackage
{
Type = ERpc.Response,
Serial = serial,
Success = success,
Data = data,
};
return(await SendAsync(PiSerializer.Serialize(pack)));
}