internal override void DoJob(ref Worker wr, Cont <bool> bK)
{
var ch = this.Ch;
TryNextTaker:
ch.Lock.Enter();
var tail = ch.Takers;
if (null != tail)
{
goto TryTaker;
}
ch.Lock.Exit();
Cont.Do(bK, ref wr, false);
return;
TryTaker:
var cursor = tail.Next;
if (tail == cursor)
{
ch.Takers = null;
ch.Lock.Exit();
}
else
{
tail.Next = cursor.Next;
ch.Lock.Exit();
tail = cursor as Cont <T>;
}
var taker = tail as Taker <T>;
if (null == taker)
{
goto GotTaker;
}
var pkOther = taker.Pick;
TryPickOther:
var stOther = Pick.TryPick(pkOther);
if (stOther > 0)
{
goto TryNextTaker;
}
if (stOther < 0)
{
goto TryPickOther;
}
Pick.SetNacks(ref wr, taker.Me, pkOther);
tail = taker.Cont;
GotTaker:
tail.Value = this.X;
Worker.Push(ref wr, tail);
Cont.Do(bK, ref wr, true);
return;
}
internal override void DoJob(ref Worker wr, Cont <T> tK)
{
var tM = this.tM;
Spin:
var state = tM.State;
if (state == MVar.Locked)
{
goto Spin;
}
if (state != Interlocked.CompareExchange(ref tM.State, MVar.Locked, state))
{
goto Spin;
}
if (state <= MVar.Empty)
{
goto EmptyOrDemand;
}
var t = tM.Value;
tM.State = MVar.Full;
Cont.Do(tK, ref wr, t);
return;
EmptyOrDemand:
WaitQueue.AddTaker(ref tM.Takers, new MVarReadCont <T>(tM, tK));
tM.State = MVar.Demand;
}
internal override void DoJob(ref Worker wr, Cont <X> xK)
{
var work = wr.WorkStack;
wr.WorkStack = null;
Scheduler.PushAll(wr.Scheduler, work);
Cont.Do(xK, ref wr, Do());
}
internal override void DoWork(ref Worker wr)
{
var value = this.tF.Invoke(null);
var tK = this.tK;
wr.Handler = tK;
Lock.Exit(this.l, ref wr);
Cont.Do(tK, ref wr, value);
}
internal override void TryAlt(ref Worker wr, int i, Cont <T> tK, Else tE)
{
var tM = this.tM;
var pkSelf = tE.pk;
Spin:
var state = tM.State;
if (state == MVar.Locked)
{
goto Spin;
}
if (state != Interlocked.CompareExchange(ref tM.State, MVar.Locked, state))
{
goto Spin;
}
if (state <= MVar.Empty)
{
goto EmptyOrDemand;
}
TryPick:
var stSelf = Pick.TryPick(pkSelf);
if (stSelf > 0)
{
goto AlreadyPicked;
}
if (stSelf < 0)
{
goto TryPick;
}
Pick.SetNacks(ref wr, i, pkSelf);
var t = tM.Value;
tM.State = MVar.Full;
Cont.Do(tK, ref wr, t);
return;
AlreadyPicked:
tM.State = MVar.Full;
return;
EmptyOrDemand:
WaitQueue.AddTaker(ref tM.Takers, i, pkSelf, new MVarReadCont <T>(tM, tK));
tM.State = MVar.Demand;
tE.TryElse(ref wr, i + 1);
return;
}
internal override void DoJob(ref Worker wr, Cont <T> tK)
{
var l = this.l;
Spin:
var state = l.State;
if (state == Lock.Locked)
{
goto Spin;
}
if (state != Interlocked.CompareExchange(ref l.State, Lock.Locked, state))
{
goto Spin;
}
if (state == Lock.Free)
{
goto GotIt;
}
var waiter = new GotIt(this.l, this.tF, tK);
var tail = l.Waiters;
if (tail == null)
{
waiter.Next = waiter;
}
else
{
waiter.Next = tail.Next;
tail.Next = waiter;
}
l.Waiters = waiter;
l.State = Lock.Held;
return;
GotIt:
// We keep the lock in Locked stated for the duration of the function
// call. This avoids doing a second interlocked operation.
T value;
try {
value = this.tF.Invoke(null);
} catch (Exception e) {
tK = new FailCont <T>(tK, e);
value = default(T);
}
l.State = Lock.Free;
Cont.Do(tK, ref wr, value);
}
///
internal override void DoJob(ref Worker wr, Cont <ulong> rK)
{
Cont.Do(rK, ref wr, Randomizer.Next(ref wr.RandomLo, ref wr.RandomHi));
}
internal override void DoJob(ref Worker wr, Cont <X> xK)
{
Cont.Do(xK, ref wr, Do(Randomizer.Next(ref wr.RandomLo, ref wr.RandomHi)));
}
internal override void DoJob(ref Worker wr, Cont <X> xK)
{
Cont.Do(xK, ref wr, Do(xK.GetProc(ref wr)));
}
internal override void DoJob(ref Worker wr, Cont <FSharpOption <T> > xK)
{
xK.Value = null;
var ch = this.ch;
TryNextGiver:
ch.Lock.Enter();
var tail = ch.Givers;
if (null != tail)
{
goto TryGiver;
}
ch.Lock.Exit();
Work.Do(xK, ref wr);
return;
TryGiver:
var cursor = tail.Next;
if (tail == cursor)
{
ch.Givers = null;
}
else
{
tail.Next = cursor.Next;
}
ch.Lock.Exit();
var giver = cursor as Giver <T>;
if (null == giver)
{
goto GotSend;
}
var pkOther = giver.Pick;
if (null == pkOther)
{
goto GotGiver;
}
TryPickOther:
var stOther = Pick.TryPick(pkOther);
if (stOther > 0)
{
goto TryNextGiver;
}
if (stOther < 0)
{
goto TryPickOther;
}
Pick.SetNacks(ref wr, giver.Me, pkOther);
GotGiver:
Worker.Push(ref wr, giver.Cont);
GotSend:
Cont.Do(xK, ref wr, FSharpOption <T> .Some(cursor.Value));
return;
}
internal override void DoCont(ref Worker wr, T t)
{
tM.Fill(ref wr, t);
Cont.Do(tK, ref wr, t);
}