public void Start()
{
if (running.CompareExchange(true, false))
{
return;
}
Init();
}
private bool InternalExitByKey(string key, string identity, out object state, bool ignoreIdentity)
{
lock (this.syncobj)
{
state = null;
SyncBlockIndex info;
if (!syncblocks.TryGetValue(key, out info))
{
return(false);
}
lock (info)
{
ISet <string> keys = string.IsNullOrEmpty(identity) ? null : GetAllKeyByIdentity(identity);
try
{
if (keys != null)
{
Monitor.Enter(keys);
}
AtomicBoolean locker = info.Lock;
if (!ignoreIdentity && info.Identity != identity)
{
return(false);
}
else
{
if (keys != null)
{
keys.Remove(key);
}
state = info.State;
info.Identity = null;
}
locker.CompareExchange(true, false);
}
finally
{
if (keys != null)
{
Monitor.Exit(keys);
}
}
}
}
return(true);
}
public void Start()
{
if (running.CompareExchange(true, false))
{
return;
}
Stopwatch watch = new Stopwatch();
watch.Start();
long lastFrameTime = 0L; // For deltaTime
long drift = 0L; // Accounting for short-term spikes
while (running)
{
lastFrameTime = Update(watch, lastFrameTime, ref drift);
}
watch.Stop();
}
public virtual bool Enter(string key, string enterIdentity, object state, out string exitIdentity)
{
if (enterIdentity == null)
{
throw new ArgumentNullException("enterIdentity");
}
if (key == null)
{
throw new ArgumentNullException("key");
}
if (key.Length <= 0)
{
throw new ArgumentOutOfRangeException("key");
}
lock (this.syncobj)
{
exitIdentity = null;
if (!this.AllocEnterKey(key))
{
return(false);
}
SyncBlockIndex info;
if (!syncblocks.TryGetValue(key, out info))
{
return(false);
}
AtomicBoolean locker = null;
lock (info)
{
locker = info.Lock;
}
bool localTaken = locker.CompareExchange(false, true);
if (localTaken)
{
ISet <string> keys = GetAllKeyByIdentity(enterIdentity);
do
{
bool addKeyToKeys = false;
if (keys == null)
{
addKeyToKeys = false;
}
else
{
lock (keys)
{
addKeyToKeys = keys.Add(key);
}
}
if (!addKeyToKeys)
{
localTaken = false;
locker.CompareExchange(true, false);
}
else
{
lock (info)
{
exitIdentity = info.Identity;
info.Identity = enterIdentity;
info.State = state;
}
}
} while (false);
}
return(localTaken);
}
}