public static bool GetInstance(out IFileWatcher watcher, bool gamin)
{
if (InotifyWatcher.failed)
{
watcher = null;
return(false);
}
if (InotifyWatcher.instance != null)
{
watcher = InotifyWatcher.instance;
return(true);
}
InotifyWatcher.FD = InotifyWatcher.GetInotifyInstance();
if ((long)InotifyWatcher.FD == -1L)
{
InotifyWatcher.failed = true;
watcher = null;
return(false);
}
InotifyWatcher.watches = Hashtable.Synchronized(new Hashtable());
InotifyWatcher.requests = Hashtable.Synchronized(new Hashtable());
InotifyWatcher.instance = new InotifyWatcher();
watcher = InotifyWatcher.instance;
return(true);
}
// Locked by caller
public static bool GetInstance(out IFileWatcher watcher, bool gamin)
{
if (failed == true)
{
watcher = null;
return(false);
}
if (instance != null)
{
watcher = instance;
return(true);
}
FD = GetInotifyInstance();
if ((long)FD == -1)
{
failed = true;
watcher = null;
return(false);
}
watches = Hashtable.Synchronized(new Hashtable());
requests = Hashtable.Synchronized(new Hashtable());
instance = new InotifyWatcher();
watcher = instance;
return(true);
}
public void StopDispatching(FileSystemWatcher fsw)
{
lock (this)
{
ParentInotifyData parentInotifyData = (ParentInotifyData)InotifyWatcher.watches[fsw];
if (parentInotifyData != null)
{
if (InotifyWatcher.RemoveRequestData(parentInotifyData.data))
{
InotifyWatcher.StopMonitoringDirectory(parentInotifyData.data);
}
InotifyWatcher.watches.Remove(fsw);
if (InotifyWatcher.watches.Count == 0)
{
InotifyWatcher.stop = true;
IntPtr fd = InotifyWatcher.FD;
InotifyWatcher.FD = (IntPtr)(-1);
InotifyWatcher.Close(fd);
}
if (parentInotifyData.IncludeSubdirs)
{
foreach (object obj in parentInotifyData.children)
{
InotifyData data = (InotifyData)obj;
if (InotifyWatcher.RemoveRequestData(data))
{
InotifyWatcher.StopMonitoringDirectory(data);
}
}
}
}
}
}
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);
//ok = WindowsWatcher.GetInstance (out watcher);
break;
case 2: // libfam
ok = FAMWatcher.GetInstance(out watcher, false);
break;
case 3: // kevent
ok = KeventWatcher.GetInstance(out watcher);
break;
case 4: // libgamin
ok = FAMWatcher.GetInstance(out watcher, true);
break;
case 5: // inotify
ok = InotifyWatcher.GetInstance(out watcher, true);
break;
}
if (mode == 0 || !ok)
{
if (String.Compare(managed, "disabled", true) == 0)
{
NullFileWatcher.GetInstance(out watcher);
}
else
{
DefaultWatcher.GetInstance(out watcher);
}
}
ShowWatcherInfo();
}
}
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);
}
}
}
}
}
public void StartDispatching(FileSystemWatcher fsw)
{
ParentInotifyData parentInotifyData;
lock (this)
{
if ((long)InotifyWatcher.FD == -1L)
{
InotifyWatcher.FD = InotifyWatcher.GetInotifyInstance();
}
if (InotifyWatcher.thread == null)
{
InotifyWatcher.thread = new Thread(new ThreadStart(this.Monitor));
InotifyWatcher.thread.IsBackground = true;
InotifyWatcher.thread.Start();
}
parentInotifyData = (ParentInotifyData)InotifyWatcher.watches[fsw];
}
if (parentInotifyData == null)
{
InotifyData inotifyData = new InotifyData();
inotifyData.FSW = fsw;
inotifyData.Directory = fsw.FullPath;
parentInotifyData = new ParentInotifyData();
parentInotifyData.IncludeSubdirs = fsw.IncludeSubdirectories;
parentInotifyData.Enabled = true;
parentInotifyData.children = new ArrayList();
parentInotifyData.data = inotifyData;
InotifyWatcher.watches[fsw] = parentInotifyData;
try
{
InotifyWatcher.StartMonitoringDirectory(inotifyData, false);
lock (this)
{
InotifyWatcher.AppendRequestData(inotifyData);
InotifyWatcher.stop = false;
}
}
catch
{
}
}
}
private void Monitor()
{
byte[] array = new byte[4096];
while (!InotifyWatcher.stop)
{
int num = InotifyWatcher.ReadFromFD(InotifyWatcher.FD, array, (IntPtr)array.Length);
if (num != -1)
{
lock (this)
{
this.ProcessEvents(array, num);
}
}
}
lock (this)
{
InotifyWatcher.thread = null;
InotifyWatcher.stop = false;
}
}
private static int AddDirectoryWatch(IntPtr fd, string directory, InotifyMask mask)
{
mask |= InotifyMask.Directory;
return(InotifyWatcher.AddWatch(fd, directory, mask));
}
private void ProcessEvents(byte[] buffer, int length)
{
ArrayList arrayList = null;
int num = 0;
RenamedEventArgs renamedEventArgs = null;
while (length > num)
{
InotifyEvent inotifyEvent;
int num2 = InotifyWatcher.ReadEvent(buffer, num, length, out inotifyEvent);
if (num2 <= 0)
{
break;
}
num += num2;
InotifyMask inotifyMask = inotifyEvent.Mask;
bool flag = (inotifyMask & InotifyMask.Directory) != (InotifyMask)0u;
inotifyMask &= InotifyWatcher.Interesting;
if (inotifyMask != (InotifyMask)0u)
{
foreach (object obj in InotifyWatcher.GetEnumerator(InotifyWatcher.requests[inotifyEvent.WatchDescriptor]))
{
InotifyData inotifyData = (InotifyData)obj;
ParentInotifyData parentInotifyData = (ParentInotifyData)InotifyWatcher.watches[inotifyData.FSW];
if (inotifyData != null && parentInotifyData.Enabled)
{
string directory = inotifyData.Directory;
string text = inotifyEvent.Name;
if (text == null)
{
text = directory;
}
FileSystemWatcher fsw = inotifyData.FSW;
FileAction fileAction = (FileAction)0;
if ((inotifyMask & (InotifyMask.Modify | InotifyMask.Attrib)) != (InotifyMask)0u)
{
fileAction = FileAction.Modified;
}
else if ((inotifyMask & InotifyMask.Create) != (InotifyMask)0u)
{
fileAction = FileAction.Added;
}
else if ((inotifyMask & InotifyMask.Delete) != (InotifyMask)0u)
{
fileAction = FileAction.Removed;
}
else if ((inotifyMask & InotifyMask.DeleteSelf) != (InotifyMask)0u)
{
if (inotifyData.Watch != parentInotifyData.data.Watch)
{
continue;
}
fileAction = FileAction.Removed;
}
else
{
if ((inotifyMask & InotifyMask.MoveSelf) != (InotifyMask)0u)
{
continue;
}
if ((inotifyMask & InotifyMask.MovedFrom) != (InotifyMask)0u)
{
InotifyEvent inotifyEvent2;
int num3 = InotifyWatcher.ReadEvent(buffer, num, length, out inotifyEvent2);
if (num3 == -1 || (inotifyEvent2.Mask & InotifyMask.MovedTo) == (InotifyMask)0u || inotifyEvent.WatchDescriptor != inotifyEvent2.WatchDescriptor)
{
fileAction = FileAction.Removed;
}
else
{
num += num3;
fileAction = FileAction.RenamedNewName;
renamedEventArgs = new RenamedEventArgs(WatcherChangeTypes.Renamed, inotifyData.Directory, inotifyEvent2.Name, inotifyEvent.Name);
if (inotifyEvent.Name != inotifyData.Directory && !fsw.Pattern.IsMatch(inotifyEvent.Name))
{
text = inotifyEvent2.Name;
}
}
}
else if ((inotifyMask & InotifyMask.MovedTo) != (InotifyMask)0u)
{
fileAction = FileAction.Added;
}
}
if (fsw.IncludeSubdirectories)
{
string fullPath = fsw.FullPath;
string text2 = inotifyData.Directory;
if (text2 != fullPath)
{
int length2 = fullPath.Length;
int num4 = 1;
if (length2 > 1 && fullPath[length2 - 1] == Path.DirectorySeparatorChar)
{
num4 = 0;
}
string path = text2.Substring(fullPath.Length + num4);
text2 = Path.Combine(text2, text);
text = Path.Combine(path, text);
}
else
{
text2 = Path.Combine(fullPath, text);
}
if (fileAction == FileAction.Added && flag)
{
if (arrayList == null)
{
arrayList = new ArrayList(2);
}
arrayList.Add(new InotifyData
{
FSW = fsw,
Directory = text2
});
}
if (fileAction == FileAction.RenamedNewName && flag)
{
string oldFullPath = renamedEventArgs.OldFullPath;
string fullPath2 = renamedEventArgs.FullPath;
int length3 = oldFullPath.Length;
foreach (object obj2 in parentInotifyData.children)
{
InotifyData inotifyData2 = (InotifyData)obj2;
if (inotifyData2.Directory.StartsWith(oldFullPath, StringComparison.Ordinal))
{
inotifyData2.Directory = fullPath2 + inotifyData2.Directory.Substring(length3);
}
}
}
}
if (fileAction == FileAction.Removed && text == inotifyData.Directory)
{
int num5 = parentInotifyData.children.IndexOf(inotifyData);
if (num5 != -1)
{
parentInotifyData.children.RemoveAt(num5);
if (!fsw.Pattern.IsMatch(Path.GetFileName(text)))
{
continue;
}
}
}
if (!(text != inotifyData.Directory) || fsw.Pattern.IsMatch(Path.GetFileName(text)))
{
FileSystemWatcher obj3 = fsw;
lock (obj3)
{
fsw.DispatchEvents(fileAction, text, ref renamedEventArgs);
if (fileAction == FileAction.RenamedNewName)
{
renamedEventArgs = null;
}
if (fsw.Waiting)
{
fsw.Waiting = false;
System.Threading.Monitor.PulseAll(fsw);
}
}
}
}
}
}
}
if (arrayList != null)
{
foreach (object obj4 in arrayList)
{
InotifyData inotifyData3 = (InotifyData)obj4;
try
{
InotifyWatcher.StartMonitoringDirectory(inotifyData3, true);
InotifyWatcher.AppendRequestData(inotifyData3);
((ParentInotifyData)InotifyWatcher.watches[inotifyData3.FSW]).children.Add(inotifyData3);
}
catch
{
}
}
arrayList.Clear();
}
}
private static void StopMonitoringDirectory(InotifyData data)
{
InotifyWatcher.RemoveWatch(InotifyWatcher.FD, data.Watch);
}
private static void StartMonitoringDirectory(InotifyData data, bool justcreated)
{
InotifyMask maskFromFilters = InotifyWatcher.GetMaskFromFilters(data.FSW.NotifyFilter);
int num = InotifyWatcher.AddDirectoryWatch(InotifyWatcher.FD, data.Directory, maskFromFilters);
if (num != -1)
{
FileSystemWatcher fsw = data.FSW;
data.Watch = num;
ParentInotifyData parentInotifyData = (ParentInotifyData)InotifyWatcher.watches[fsw];
if (parentInotifyData.IncludeSubdirs)
{
foreach (string text in Directory.GetDirectories(data.Directory))
{
InotifyData inotifyData = new InotifyData();
inotifyData.FSW = fsw;
inotifyData.Directory = text;
if (justcreated)
{
FileSystemWatcher obj = fsw;
lock (obj)
{
RenamedEventArgs renamedEventArgs = null;
if (fsw.Pattern.IsMatch(text))
{
fsw.DispatchEvents(FileAction.Added, text, ref renamedEventArgs);
if (fsw.Waiting)
{
fsw.Waiting = false;
System.Threading.Monitor.PulseAll(fsw);
}
}
}
}
try
{
InotifyWatcher.StartMonitoringDirectory(inotifyData, justcreated);
InotifyWatcher.AppendRequestData(inotifyData);
parentInotifyData.children.Add(inotifyData);
}
catch
{
}
}
}
if (justcreated)
{
foreach (string text2 in Directory.GetFiles(data.Directory))
{
FileSystemWatcher obj2 = fsw;
lock (obj2)
{
RenamedEventArgs renamedEventArgs2 = null;
if (fsw.Pattern.IsMatch(text2))
{
fsw.DispatchEvents(FileAction.Added, text2, ref renamedEventArgs2);
fsw.DispatchEvents(FileAction.Modified, text2, ref renamedEventArgs2);
if (fsw.Waiting)
{
fsw.Waiting = false;
System.Threading.Monitor.PulseAll(fsw);
}
}
}
}
}
return;
}
int lastWin32Error = Marshal.GetLastWin32Error();
if (lastWin32Error == 4)
{
string arg = "(unknown)";
try
{
using (StreamReader streamReader = new StreamReader("/proc/sys/fs/inotify/max_user_watches"))
{
arg = streamReader.ReadLine();
}
}
catch
{
}
string message = string.Format("The per-user inotify watches limit of {0} has been reached. If you're experiencing problems with your application, increase that limit in /proc/sys/fs/inotify/max_user_watches.", arg);
throw new System.ComponentModel.Win32Exception(lastWin32Error, message);
}
throw new System.ComponentModel.Win32Exception(lastWin32Error);
}
void InitWatcher()
{
lock (lockobj) {
if (watcher_handle != 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();
}
}
// Locked by caller
public static bool GetInstance (out IFileWatcher watcher, bool gamin)
{
if (failed == true) {
watcher = null;
return false;
}
if (instance != null) {
watcher = instance;
return true;
}
FD = GetInotifyInstance ();
if ((long) FD == -1) {
failed = true;
watcher = null;
return false;
}
watches = Hashtable.Synchronized (new Hashtable ());
requests = Hashtable.Synchronized (new Hashtable ());
instance = new InotifyWatcher ();
watcher = instance;
return true;
}
