public bool Free(VirtualDirectoryWatcher watcher)
{
lock (_lockObject)
{
if (_isDisposed)
{
return(false);
}
if (!_directoryWatchers.ContainsKey(watcher.Directory))
{
return(true);
}
var retv = --_watchersAllocations[watcher] <= 0;
if (!retv)
{
return(false);
}
_directoryWatchers.Remove(watcher.Directory);
_watchersAllocations.Remove(watcher);
return(true);
}
}
private bool tryGetWatcher(VirtualDirectory src, out VirtualDirectoryWatcher watcher)
{
lock (_lockObject)
{
watcher = null;
if (_isDisposed)
{
return(false);
}
var retv = _directoryWatchers.ContainsKey(src);
if (retv)
{
watcher = _directoryWatchers[src];
}
return(retv);
}
}
public VirtualDirectoryWatcher Alloc(VirtualDirectory directory)
{
lock (_lockObject)
{
if (_isDisposed)
{
throw new ObjectDisposedException(nameof(VirtualDirectoryWatcherSource));
}
if (!_directoryWatchers.ContainsKey(directory))
{
var newWatcher = new VirtualDirectoryWatcher(directory, this);
_directoryWatchers[directory] = newWatcher;
_watchersAllocations[newWatcher] = 0;
}
var watcher = _directoryWatchers[directory];
_watchersAllocations[watcher]++;
return(watcher);
}
}
