- handle = avahi_service_browser_new (client.Handle, iface, (int) proto, typePtr, domainPtr,
- cb, IntPtr.Zero);
+
+ lock (client) {
+ handle = avahi_service_browser_new (client.Handle, iface, (int) proto, typePtr, domainPtr,
+ cb, IntPtr.Zero);
+ }
- if (handle != IntPtr.Zero && (force || (addListeners.Count == 0 && removeListeners.Count == 0))) {
- avahi_service_browser_free (handle);
- handle = IntPtr.Zero;
+ if (client.Handle != IntPtr.Zero && handle != IntPtr.Zero &&
+ (force || (addListeners.Count == 0 && removeListeners.Count == 0))) {
+
+ lock (client) {
+ avahi_service_browser_free (handle);
+ handle = IntPtr.Zero;
+ }