using System;
+using System.Threading;
using System.Collections;
using System.Runtime.InteropServices;
{
internal enum ResolverEvent {
Found,
- Timeout
+ Timeout,
+ NotFound,
+ Failure
}
internal enum BrowserEvent {
Added,
- Removed
+ Removed,
+ CacheExhausted,
+ AllForNow,
+ NotFound,
+ Failure
}
-
+
+ internal delegate int PollCallback (IntPtr ufds, uint nfds, int timeout);
internal delegate void ClientCallback (IntPtr client, ClientState state, IntPtr userData);
public delegate void ClientStateHandler (object o, ClientState state);
public enum Protocol {
- Unspecified = 0,
- IPv4 = 2,
- IPv6 = 10
+ Unspecified = -1,
+ IPv4 = 0,
+ IPv6 = 1
}
public enum ClientState {
Collision,
Disconnected = 100
}
+
+ [Flags]
+ public enum LookupFlags {
+ None = 0,
+ UseWideArea = 1,
+ UseMulticast = 2,
+ NoTxt = 4,
+ NoAddress = 8
+ }
+
+ [Flags]
+ public enum LookupResultFlags {
+ None = 0,
+ Cached = 1,
+ WideArea = 2,
+ Multicast = 4
+ }
public class Client : IDisposable
{
private IntPtr handle;
+ private ClientCallback cb;
+ private PollCallback pollcb;
+ private IntPtr spoll;
+
+ private Thread thread;
[DllImport ("avahi-client")]
private static extern IntPtr avahi_client_new (IntPtr poll, ClientCallback handler,
[DllImport ("avahi-client")]
private static extern int avahi_client_errno (IntPtr handle);
- [DllImport ("avahi-glib")]
- private static extern IntPtr avahi_glib_poll_new (IntPtr context, int priority);
+ [DllImport ("avahi-common")]
+ private static extern IntPtr avahi_simple_poll_new ();
+
+ [DllImport ("avahi-common")]
+ private static extern IntPtr avahi_simple_poll_get (IntPtr spoll);
+
+ [DllImport ("avahi-common")]
+ private static extern void avahi_simple_poll_free (IntPtr spoll);
+
+ [DllImport ("avahi-common")]
+ private static extern int avahi_simple_poll_iterate (IntPtr spoll, int timeout);
+
+ [DllImport ("avahi-common")]
+ private static extern void avahi_simple_poll_set_func (IntPtr spoll, PollCallback cb);
- [DllImport ("avahi-glib")]
- private static extern IntPtr avahi_glib_poll_get (IntPtr gpoll);
+ [DllImport ("avahi-common")]
+ private static extern void avahi_simple_poll_quit (IntPtr spoll);
+
+ [DllImport ("avahi-client")]
+ private static extern uint avahi_client_get_local_service_cookie (IntPtr client);
+
+ [DllImport ("avahi-client")]
+ private static extern int avahi_client_is_service_local (IntPtr client, int iface, Protocol proto,
+ IntPtr name, IntPtr type, IntPtr domain);
+
+
+ [DllImport ("libc")]
+ private static extern int poll(IntPtr ufds, uint nfds, int timeout);
public event ClientStateHandler StateChanged;
public string Version
{
- get { return Utility.PtrToString (avahi_client_get_version_string (handle)); }
+ get {
+ lock (this) {
+ return Utility.PtrToString (avahi_client_get_version_string (handle));
+ }
+ }
}
public string HostName
{
- get { return Utility.PtrToString (avahi_client_get_host_name (handle)); }
+ get {
+ lock (this) {
+ return Utility.PtrToString (avahi_client_get_host_name (handle));
+ }
+ }
}
public string DomainName
{
- get { return Utility.PtrToString (avahi_client_get_domain_name (handle)); }
+ get {
+ lock (this) {
+ return Utility.PtrToString (avahi_client_get_domain_name (handle));
+ }
+ }
}
public string HostNameFqdn
{
- get { return Utility.PtrToString (avahi_client_get_host_name_fqdn (handle)); }
+ get {
+ lock (this) {
+ return Utility.PtrToString (avahi_client_get_host_name_fqdn (handle));
+ }
+ }
}
public ClientState State
{
- get { return (ClientState) avahi_client_get_state (handle); }
+ get {
+ lock (this) {
+ return (ClientState) avahi_client_get_state (handle);
+ }
+ }
+ }
+
+ public uint LocalServiceCookie
+ {
+ get {
+ lock (this) {
+ return avahi_client_get_local_service_cookie (handle);
+ }
+ }
}
internal int LastError
{
- get { return avahi_client_errno (handle); }
+ get {
+ lock (this) {
+ return avahi_client_errno (handle);
+ }
+ }
}
public Client ()
{
- IntPtr gpoll = avahi_glib_poll_new (IntPtr.Zero, 0);
- IntPtr poll = avahi_glib_poll_get (gpoll);
+ spoll = avahi_simple_poll_new ();
+
+ pollcb = OnPollCallback;
+ avahi_simple_poll_set_func (spoll, pollcb);
+ IntPtr poll = avahi_simple_poll_get (spoll);
+ cb = OnClientCallback;
int error;
- handle = avahi_client_new (poll, OnClientCallback, IntPtr.Zero, out error);
+ handle = avahi_client_new (poll, cb, IntPtr.Zero, out error);
if (error != 0)
throw new ClientException (error);
+
+ thread = new Thread (PollLoop);
+ thread.IsBackground = true;
+ thread.Start ();
}
~Client ()
public void Dispose ()
{
- if (handle != IntPtr.Zero) {
- avahi_client_free (handle);
- handle = IntPtr.Zero;
+ lock (this) {
+ if (handle != IntPtr.Zero) {
+ thread.Abort ();
+
+ avahi_client_free (handle);
+ avahi_simple_poll_quit (spoll);
+ avahi_simple_poll_free (spoll);
+ handle = IntPtr.Zero;
+ }
}
}
+ public bool IsServiceLocal (ServiceInfo service)
+ {
+ return IsServiceLocal (service.NetworkInterface, service.Protocol, service.Name,
+ service.ServiceType, service.Domain);
+ }
+
+ public bool IsServiceLocal (int iface, Protocol proto, string name, string type, string domain)
+ {
+ IntPtr namePtr = Utility.StringToPtr (name);
+ IntPtr typePtr = Utility.StringToPtr (type);
+ IntPtr domainPtr = Utility.StringToPtr (domain);
+
+ int result = avahi_client_is_service_local (handle, iface, proto, namePtr, typePtr, domainPtr);
+
+ Utility.Free (namePtr);
+ Utility.Free (typePtr);
+ Utility.Free (domainPtr);
+
+ return result == 1;
+ }
+
internal void CheckError ()
{
int error = LastError;
if (StateChanged != null)
StateChanged (this, state);
}
+
+ private int OnPollCallback (IntPtr ufds, uint nfds, int timeout) {
+ Monitor.Exit (this);
+ int result = poll (ufds, nfds, timeout);
+ Monitor.Enter (this);
+ return result;
+ }
+
+ private void PollLoop () {
+ try {
+ lock (this) {
+ while (true) {
+ if (avahi_simple_poll_iterate (spoll, -1) != 0)
+ break;
+ }
+ }
+ } catch (ThreadAbortException e) {
+ } catch (Exception e) {
+ Console.Error.WriteLine ("Error in avahi-sharp event loop: " + e);
+ }
+ }
}
}