internal void NotifyAcquired()
{
lock (lockStates) {
int Offset = 0;
LockState[] LockedList = new LockState[lockStates.Count]; //I have to do this, if I don't and I run out of memory bad things are gonna happen.
try {
foreach (LockState LockState in lockStates)
{
if (System.Threading.Monitor.TryEnter(LockState))
{
LockedList [Offset++] = LockState;
if (LockState.Status == LockStatus.Unlocked)
{
throw new SystemException("LockManager has messed up.");
}
}
else
{
throw new SystemException("LockManager has messed up.");
}
}
ExecuteRequestList();
} catch (Exception ex) {
if (Offset != LockedList.Length)
{
throw new Exception(string.Format("Something wicked happened while acquiring locks.Got {0} out of {1} locks.", Offset, LockedList.Length), ex);
}
} finally {
for (int n = 0; n != Offset; n++)
{
System.Threading.Monitor.Exit(LockedList [n]);
}
}
}
}
internal bool CanCoexistWith(LockState LockState)
{
if (CanCoexistWithType(LockState.lockType))
{
return(true); //fine anyway, we're both probably reading
}
//bit if we have anything in common, We've got to wait
return(!LockState.lockables.Overlaps(this.lockables));
}
public LockStatus StatusOf(LockState lockState)
{
lock (lockAccess) {
if (staleLocks.Contains(lockState))
{
return(LockStatus.Locked); //not sure
}
return(LockStatus.Unlocked);
}
}
public LockState CreateLock(LockType type, LockableBase[] baseDataObjectStateTrackers, int timeoutMilliSeconds, Action <LockState> stateChanged)
{
//TODO: aqcuire lock here or provide option to do so later and make a call-back for it.
try {
LockState ls = new LockState(this, type, baseDataObjectStateTrackers, NotifyStateChanged, ReportStale, TimeSpan.FromMilliseconds(timeoutMilliSeconds));
lock (lockAccess) {
pendingLocks.Add(ls);
}
return(ls);
} catch {
return(null);
} finally {
}
}
private void NotifyStateChanged(LockState LockState)
{
Action <LockState> act = locks [LockState];
switch (LockState.Status)
{
case LockStatus.Locked:
break;
case LockStatus.Unlocked:
break;
}
act(LockState);
}
void RemoveLockManager(LockState state)
{
lock (managers) {
managers.Remove (state);
}
}
void AddLockStateTracker(LockState state)
{
lock (managers) {
managers.Add (state);
}
}
void RemoveLockManager(LockState state)
{
lock (managers) {
managers.Remove(state);
}
}
void AddLockStateTracker(LockState state)
{
lock (managers) {
managers.Add(state);
}
}
private void ReportStale(LockState lockState)
{
lock (lockAccess)
staleLocks.Add (lockState);
}
private void NotifyStateChanged(LockState LockState)
{
Action<LockState> act = locks [LockState];
switch (LockState.Status) {
case LockStatus.Locked:
break;
case LockStatus.Unlocked:
break;
}
act (LockState);
}
public LockStatus StatusOf(LockState lockState)
{
lock (lockAccess) {
if (staleLocks.Contains (lockState)) {
return LockStatus.Locked;//not sure
}
return LockStatus.Unlocked;
}
}
public LockState CreateLock(LockType type, LockableBase[] baseDataObjectStateTrackers, int timeoutMilliSeconds, Action<LockState> stateChanged)
{
//TODO: aqcuire lock here or provide option to do so later and make a call-back for it.
try {
LockState ls = new LockState (this, type, baseDataObjectStateTrackers, NotifyStateChanged, ReportStale, TimeSpan.FromMilliseconds (timeoutMilliSeconds));
lock (lockAccess) {
pendingLocks.Add (ls);
}
return ls;
} catch {
return null;
} finally {
}
}
internal void NotifyAcquired()
{
lock (lockStates) {
int Offset = 0;
LockState[] LockedList = new LockState[lockStates.Count];//I have to do this, if I don't and I run out of memory bad things are gonna happen.
try {
foreach (LockState LockState in lockStates) {
if (System.Threading.Monitor.TryEnter (LockState)) {
LockedList [Offset++] = LockState;
if (LockState.Status == LockStatus.Unlocked) {
throw new SystemException ("LockManager has messed up.");
}
} else {
throw new SystemException ("LockManager has messed up.");
}
}
ExecuteRequestList ();
} catch (Exception ex) {
if (Offset != LockedList.Length) {
throw new Exception (string.Format ("Something wicked happened while acquiring locks.Got {0} out of {1} locks.", Offset, LockedList.Length), ex);
}
} finally {
for (int n = 0; n != Offset; n++) {
System.Threading.Monitor.Exit (LockedList [n]);
}
}
}
}
private void ReportStale(LockState lockState)
{
lock (lockAccess)
staleLocks.Add(lockState);
}
internal bool CanCoexistWith(LockState LockState)
{
if (CanCoexistWithType (LockState.lockType))
return true;//fine anyway, we're both probably reading
//bit if we have anything in common, We've got to wait
return !LockState.lockables.Overlaps (this.lockables);
}
