public virtual IObservable <BleWriteSegment> BlobWrite(Stream stream, bool reliableWrite)
=> Observable.Create <BleWriteSegment>(async ob =>
{
var cts = new CancellationTokenSource();
var trans = reliableWrite
? this.Service.Device.BeginReliableWriteTransaction()
: new VoidGattReliableWriteTransaction();
using (trans)
{
var mtu = this.Service.Device.MtuSize;
var buffer = new byte[mtu];
var read = stream.Read(buffer, 0, buffer.Length);
var pos = read;
var len = Convert.ToInt32(stream.Length);
while (!cts.IsCancellationRequested && read > 0)
{
await trans
.Write(this, buffer)
.ToTask(cts.Token)
.ConfigureAwait(false);
//if (this.Value != buffer)
//{
// trans.Abort();
// throw new GattReliableWriteTransactionException("There was a mismatch response");
//}
var seg = new BleWriteSegment(buffer, pos, len);
ob.OnNext(seg);
read = stream.Read(buffer, 0, buffer.Length);
if (read > 0 && read < buffer.Length)
{
for (var index = read; index < buffer.Length; index++)
{
buffer[index] = 0;
}
}
pos += read;
}
await trans.Commit();
}
ob.OnCompleted();
return(() =>
{
cts.Cancel();
trans.Dispose();
});
});
public virtual IObservable <BleWriteSegment> BlobWrite(Stream stream, bool reliableWrite)
{
return(Observable.Create <BleWriteSegment>(async ob =>
{
var cts = new CancellationTokenSource();
var trans = reliableWrite
? this.Service.Device.BeginReliableWriteTransaction()
: new VoidGattReliableWriteTransaction();
using (trans)
{
var mtu = this.Service.Device.GetCurrentMtuSize();
var buffer = new byte[mtu];
var read = stream.Read(buffer, 0, buffer.Length);
var pos = read;
var len = Convert.ToInt32(stream.Length);
while (!cts.IsCancellationRequested && read > 0)
{
await trans.Write(this, buffer).RunAsync(cts.Token);
//await this.Write(buffer).RunAsync(cts.Token);
if (this.Value != buffer)
{
trans.Abort();
throw new GattReliableWriteTransactionException("There was a mismatch response");
}
var seg = new BleWriteSegment(buffer, pos, len);
ob.OnNext(seg);
read = stream.Read(buffer, 0, buffer.Length);
pos += read;
}
await trans.Commit();
}
ob.OnCompleted();
return () =>
{
cts.Cancel();
trans.Dispose();
};
}));
}
