internal override void DoHandle(ref Worker wr, Exception e)
{
var tP = this.tP as Promise <T>;
Spin:
var state = tP.State;
if (state != Running)
{
goto Spin;
}
if (Running != Interlocked.CompareExchange(ref tP.State, state - MakeLocked, state))
{
goto Spin;
}
var readers = tP.Readers;
tP.Readers = new Fail <T>(e);
tP.State = HasExn;
WaitQueue.FailReaders(readers, e, ref wr);
var reader = this.reader;
if (null == reader)
{
return;
}
wr.Handler = reader;
reader.DoHandle(ref wr, e);
}
internal override void DoJob(ref Worker wr, Cont <Unit> uK)
{
var tI = this.tI;
Spin:
var state = tI.State;
if (state < Delayed)
{
goto Spin;
}
if (state != Interlocked.CompareExchange(ref tI.State, ~state, state))
{
goto Spin;
}
if (state > Running)
{
goto IVarFull;
}
var readers = tI.Readers;
var e = this.e;
tI.Readers = new Fail <T>(e);
tI.State = HasExn;
WaitQueue.FailReaders(readers, e, ref wr);
Work.Do(uK, ref wr);
return;
IVarFull:
uK.DoHandle(ref wr, new Exception("IVar full"));
}
internal override void DoJob(ref Worker wr, Cont <Unit> uK)
{
var tI = this.tI;
Spin:
var state = tI.State;
if (state < Delayed)
{
goto Spin;
}
if (state > Running)
{
goto Done;
}
if (state != Interlocked.CompareExchange(ref tI.State, ~state, state))
{
goto Spin;
}
var readers = tI.Readers;
var e = this.e;
tI.Readers = new Fail <T>(e);
tI.State = HasExn;
WaitQueue.FailReaders(readers, e, ref wr);
Done:
Work.Do(uK, ref wr);
}
