public static Watch Subscribe(string path, InotifyCallback callback, EventType mask, EventType initial_filter)
{
WatchInternal watch;
WatchInfo watched;
EventType mask_orig = mask;
if (!Path.IsPathRooted(path))
{
path = Path.GetFullPath(path);
}
bool is_directory = false;
if (Directory.Exists(path))
{
is_directory = true;
}
else if (!File.Exists(path))
{
throw new IOException(path);
}
lock (watched_by_wd) {
watched = watched_by_path [path] as WatchInfo;
if (watched == null)
{
// We need an entirely new WatchInfo object
watched = new WatchInfo();
watched.Path = path;
watched.IsDirectory = is_directory;
watched.Subscribers = new ArrayList();
watched.Children = new ArrayList();
DirectoryInfo dir = new DirectoryInfo(path);
if (dir.Parent != null)
{
watched.Parent = watched_by_path [dir.Parent.ToString()] as WatchInfo;
}
if (watched.Parent != null)
{
watched.Parent.Children.Add(watched);
}
watched_by_path [watched.Path] = watched;
}
watched.FilterMask = initial_filter;
watched.FilterSeen = 0;
watch = new WatchInternal(callback, mask_orig, watched);
watched.Subscribers.Add(watch);
CreateOrModifyWatch(watched);
watched_by_wd [watched.Wd] = watched;
}
return(watch);
}
static private void Unsubscribe(WatchInfo watched, WatchInternal watch)
{
watched.Subscribers.Remove(watch);
// Other subscribers might still be around
if (watched.Subscribers.Count > 0)
{
// Minimize it
CreateOrModifyWatch(watched);
return;
}
int retval = inotify_glue_ignore(inotify_fd, watched.Wd);
if (retval < 0)
{
string msg = String.Format("Attempt to ignore {0} failed!", watched.Path);
throw new IOException(msg);
}
Forget(watched);
return;
}
private static void Unsubscribe(WatchInfo watched, WatchInternal watch)
{
watched.Subscribers.Remove(watch);
// Other subscribers might still be around
if (watched.Subscribers.Count > 0)
{
// Minimize it
CreateOrModifyWatch(watched);
return;
}
int retval = inotify_glue_ignore(inotify_fd, watched.Wd);
if (retval < 0)
{
Mono.Unix.Native.Errno errno = Mono.Unix.Native.NativeConvert.ToErrno(-retval);
string msg = String.Format("Attempt to ignore {0} failed: {1}", watched.Path, Mono.Unix.UnixMarshal.GetErrorDescription(errno));
throw new IOException(msg);
}
Forget(watched);
return;
}
private static void Unsubscribe (WatchInfo watched, WatchInternal watch)
{
watched.Subscribers.Remove (watch);
// Other subscribers might still be around
if (watched.Subscribers.Count > 0) {
// Minimize it
CreateOrModifyWatch (watched);
return;
}
int retval = inotify_glue_ignore (inotify_fd, watched.Wd);
if (retval < 0) {
Mono.Unix.Native.Errno errno = Mono.Unix.Native.NativeConvert.ToErrno (-retval);
string msg = String.Format ("Attempt to ignore {0} failed: {1}", watched.Path, Mono.Unix.UnixMarshal.GetErrorDescription (errno));
throw new IOException (msg);
}
Forget (watched);
return;
}
public static Watch Subscribe (string path, InotifyCallback callback, EventType mask, EventType initial_filter)
{
WatchInternal watch;
WatchInfo watched;
EventType mask_orig = mask;
if (!Path.IsPathRooted (path))
path = Path.GetFullPath (path);
bool is_directory = false;
if (Directory.Exists (path))
is_directory = true;
else if (! File.Exists (path))
throw new IOException (path);
lock (watched_by_wd) {
watched = watched_by_path [path] as WatchInfo;
if (watched == null) {
// We need an entirely new WatchInfo object
watched = new WatchInfo ();
watched.Path = path;
watched.IsDirectory = is_directory;
watched.Subscribers = new ArrayList ();
watched.Children = new ArrayList ();
DirectoryInfo dir = new DirectoryInfo (path);
if (dir.Parent != null)
watched.Parent = watched_by_path [dir.Parent.ToString ()] as WatchInfo;
if (watched.Parent != null)
watched.Parent.Children.Add (watched);
watched_by_path [watched.Path] = watched;
}
watched.FilterMask = initial_filter;
watched.FilterSeen = 0;
watch = new WatchInternal (callback, mask_orig, watched);
watched.Subscribers.Add (watch);
CreateOrModifyWatch (watched);
watched_by_wd [watched.Wd] = watched;
}
return watch;
}
private static void Unsubscribe(WatchInfo watched, WatchInternal watch)
{
watched.Subscribers.Remove (watch);
// Other subscribers might still be around
if (watched.Subscribers.Count > 0) {
// Minimize it
CreateOrModifyWatch (watched);
return;
}
int retval = inotify_glue_ignore (inotify_fd, watched.Wd);
if (retval < 0) {
string msg = String.Format ("Attempt to ignore {0} failed!", watched.Path);
throw new IOException (msg);
}
Forget (watched);
return;
}
