private void InitWatcher()
{
object obj = FileSystemWatcher.lockobj;
lock (obj)
{
if (FileSystemWatcher.watcher == null)
{
string environmentVariable = Environment.GetEnvironmentVariable("MONO_MANAGED_WATCHER");
int num = 0;
if (environmentVariable == null)
{
num = FileSystemWatcher.InternalSupportsFSW();
}
bool flag = false;
switch (num)
{
case 1:
flag = DefaultWatcher.GetInstance(out FileSystemWatcher.watcher);
break;
case 2:
flag = FAMWatcher.GetInstance(out FileSystemWatcher.watcher, false);
break;
case 3:
flag = KeventWatcher.GetInstance(out FileSystemWatcher.watcher);
break;
case 4:
flag = FAMWatcher.GetInstance(out FileSystemWatcher.watcher, true);
break;
case 5:
flag = InotifyWatcher.GetInstance(out FileSystemWatcher.watcher, true);
break;
}
if (num == 0 || !flag)
{
if (string.Compare(environmentVariable, "disabled", true) == 0)
{
NullFileWatcher.GetInstance(out FileSystemWatcher.watcher);
}
else
{
DefaultWatcher.GetInstance(out FileSystemWatcher.watcher);
}
}
}
}
}