public static bool GetInstance(out IFileWatcher watcher)
{
if (instance != null)
{
watcher = instance;
return(true);
}
internal_map = new ConcurrentDictionary <object, C> ();
external_map = new ConditionalWeakTable <object, M> ();
event_map = new ConcurrentDictionary <object, object> ();
instance = watcher = new CoreFXFileSystemWatcherProxy();
return(true);
}
void InitWatcher()
{
lock (lockobj) {
if (watcher != null)
{
return;
}
string managed = Environment.GetEnvironmentVariable("MONO_MANAGED_WATCHER");
int mode = 0;
if (managed == null)
{
mode = InternalSupportsFSW();
}
bool ok = false;
switch (mode)
{
case 1: // windows
ok = DefaultWatcher.GetInstance(out watcher);
watcher_handle = this;
break;
case 2: // libfam
ok = FAMWatcher.GetInstance(out watcher, false);
watcher_handle = this;
break;
case 3: // kevent
ok = KeventWatcher.GetInstance(out watcher);
watcher_handle = this;
break;
case 4: // libgamin
ok = FAMWatcher.GetInstance(out watcher, true);
watcher_handle = this;
break;
case 5: // inotify
ok = InotifyWatcher.GetInstance(out watcher, true);
watcher_handle = this;
break;
case 6: // CoreFX
ok = CoreFXFileSystemWatcherProxy.GetInstance(out watcher);
watcher_handle = (watcher as CoreFXFileSystemWatcherProxy).NewWatcher(this);
break;
}
if (mode == 0 || !ok)
{
if (String.Compare(managed, "disabled", true) == 0)
{
NullFileWatcher.GetInstance(out watcher);
}
else
{
DefaultWatcher.GetInstance(out watcher);
watcher_handle = this;
}
}
this.inited = true;
ShowWatcherInfo();
}
}