mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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DynamicSignal: Reformat to match conventions
This commit is contained in:
Stephan Sundermann
parent
5b386f21fb
commit
db3ffc2a70
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@ -29,401 +29,429 @@ using System.Reflection;
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using System.Runtime.InteropServices;
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using System.Collections;
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namespace Gst {
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namespace Gst
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{
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delegate void GClosureMarshal (IntPtr closure, ref GLib.Value retval, uint argc, IntPtr argsPtr,
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delegate void GClosureMarshal (IntPtr closure, ref GLib.Value retval, uint argc, IntPtr argsPtr,
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IntPtr invocation_hint, IntPtr data);
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public delegate void SignalHandler (object o, SignalArgs args);
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public static class DynamicSignal {
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private static readonly int gvalue_struct_size = Marshal.SizeOf (typeof (GLib.Value));
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class ObjectSignalKey {
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object o;
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string signal_name;
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public ObjectSignalKey (object o, string name) {
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this.o = o;
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signal_name = name;
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}
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public override bool Equals (object o) {
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if (o is ObjectSignalKey) {
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ObjectSignalKey k = (ObjectSignalKey) o;
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return k.o.Equals (this.o) && signal_name.Equals (k.signal_name);
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}
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return base.Equals (o);
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}
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public override int GetHashCode() {
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return o.GetHashCode() ^ signal_name.GetHashCode();
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}
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}
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class SignalInfo {
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uint handlerId;
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IntPtr closure;
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Delegate registeredHandler;
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Type argsType;
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public IntPtr Closure {
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get {
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return closure;
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} set {
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closure = value;
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}
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}
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public uint HandlerId {
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get {
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return handlerId;
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} set {
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handlerId = value;
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}
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}
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public Delegate RegisteredHandler {
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get {
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return registeredHandler;
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} set {
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registeredHandler = value;
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}
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}
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public Type ArgsType {
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get {
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return argsType;
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} set {
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argsType = value;
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}
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}
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public SignalInfo (uint handlerId, IntPtr closure, Delegate registeredHandler) {
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this.handlerId = handlerId;
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this.closure = closure;
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this.registeredHandler = registeredHandler;
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if (!IsValidDelegate (registeredHandler))
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throw new Exception ("Invalid delegate");
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MethodInfo mi = registeredHandler.Method;
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ParameterInfo[] parms = mi.GetParameters ();
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this.argsType = parms[1].ParameterType;
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}
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public void UpdateArgsType (Delegate d) {
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if (!IsCompatibleDelegate (d))
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throw new Exception ("Incompatible delegate");
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MethodInfo mi = d.Method;
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ParameterInfo[] parms = mi.GetParameters ();
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Type t1 = parms[1].ParameterType;
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Type t2 = argsType;
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if (t1 == t2)
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return;
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if (t1.IsSubclassOf (t2))
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argsType = t1;
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else if (t2.IsSubclassOf (t1))
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argsType = t2;
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else
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throw new Exception ("Incompatible delegate");
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}
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public bool IsCompatibleDelegate (Delegate d) {
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if (!IsValidDelegate (d))
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return false;
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MethodInfo mi = d.Method;
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ParameterInfo[] parms = mi.GetParameters ();
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if (parms[1].ParameterType != this.argsType &&
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!parms[1].ParameterType.IsSubclassOf (this.argsType) &&
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!this.argsType.IsSubclassOf (parms[1].ParameterType))
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return false;
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return true;
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}
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public static bool IsValidDelegate (Delegate d) {
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MethodInfo mi = d.Method;
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if (mi.ReturnType != typeof (void))
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return false;
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ParameterInfo[] parms = mi.GetParameters ();
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if (parms.Length != 2)
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return false;
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if (parms[1].ParameterType != typeof (GLib.SignalArgs) &&
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!parms[1].ParameterType.IsSubclassOf (typeof (GLib.SignalArgs)))
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return false;
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return true;
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}
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}
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static Hashtable SignalHandlers = new Hashtable();
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static GClosureMarshal marshalHandler = new GClosureMarshal (OnMarshal);
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public static void Connect (GLib.Object o, string name, SignalHandler handler) {
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Connect (o, name, false, (Delegate) handler);
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}
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public static void Connect (GLib.Object o, string name,
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bool after, SignalHandler handler) {
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Connect (o, name, after, (Delegate) handler);
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}
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public static void Connect (GLib.Object o, string name, Delegate handler) {
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Connect (o, name, false, handler);
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}
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static int g_closure_sizeof = gstsharp_g_closure_sizeof ();
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public static void Connect (GLib.Object o, string name,
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bool after, Delegate handler) {
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Delegate newHandler;
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ObjectSignalKey k = new ObjectSignalKey (o, name);
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if (!SignalInfo.IsValidDelegate (handler))
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throw new Exception ("Invalid delegate");
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if (SignalHandlers[k] != null) {
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SignalInfo si = (SignalInfo) SignalHandlers[k];
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if (!si.IsCompatibleDelegate (handler))
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throw new Exception ("Incompatible delegate");
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newHandler = Delegate.Combine (si.RegisteredHandler, handler);
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si.UpdateArgsType (handler);
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si.RegisteredHandler = newHandler;
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} else {
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if (!SignalInfo.IsValidDelegate (handler))
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throw new Exception ("Invalid delegate");
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IntPtr closure = g_closure_new_simple (g_closure_sizeof, IntPtr.Zero);
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g_closure_set_meta_marshal (closure, (IntPtr) GCHandle.Alloc (k), marshalHandler);
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uint signalId = g_signal_connect_closure (o.Handle, name, closure, after);
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SignalHandlers.Add (k, new SignalInfo (signalId, closure, handler));
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}
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}
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[DllImport ("libgstreamersharpglue-1.0.0.dll") ]
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static extern int gstsharp_g_closure_sizeof ();
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public static void Disconnect (GLib.Object o, string name, Delegate handler) {
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ObjectSignalKey k = new ObjectSignalKey (o, name);
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if (SignalHandlers[k] != null) {
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SignalInfo si = (SignalInfo) SignalHandlers[k];
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Delegate newHandler = Delegate.Remove (si.RegisteredHandler, handler);
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if (newHandler == null || handler == null) {
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g_signal_handler_disconnect (o.Handle, si.HandlerId);
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SignalHandlers.Remove (k);
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} else {
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si.RegisteredHandler = newHandler;
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}
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}
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}
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static void OnMarshal (IntPtr closure, ref GLib.Value retval, uint argc, IntPtr argsPtr,
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IntPtr ihint, IntPtr data) {
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object [] args = new object[argc - 1];
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object o = ( (GLib.Value) Marshal.PtrToStructure (argsPtr, typeof (GLib.Value))).Val;
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for (int i = 1; i < argc; i++) {
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IntPtr struct_ptr = (IntPtr) ( (long) argsPtr + (i * gvalue_struct_size));
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GLib.Value argument = (GLib.Value) Marshal.PtrToStructure (struct_ptr, typeof (GLib.Value));
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args[i - 1] = argument.Val;
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}
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if (data == IntPtr.Zero) {
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Console.Error.WriteLine ("No available data");
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return;
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}
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ObjectSignalKey k = (ObjectSignalKey) ( (GCHandle) data).Target;
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if (k != null) {
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SignalInfo si = (SignalInfo) SignalHandlers[k];
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GLib.SignalArgs arg = (GLib.SignalArgs) Activator.CreateInstance (si.ArgsType);
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arg.Args = args;
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si.RegisteredHandler.DynamicInvoke (new object[] {o, arg});
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if (arg.RetVal != null) {
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retval.Val = arg.RetVal;
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}
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}
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}
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[DllImport ("libgobject-2.0-0.dll") ]
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static extern IntPtr g_closure_new_simple (int size, IntPtr data);
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[DllImport ("libgobject-2.0-0.dll") ]
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static extern uint g_signal_connect_closure (IntPtr instance,
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string name, IntPtr closure, bool after);
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[DllImport ("libgobject-2.0-0.dll") ]
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static extern void g_closure_set_meta_marshal (IntPtr closure, IntPtr data, GClosureMarshal marshal);
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class GTypeSignalKey {
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GType type;
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string signal_name;
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public GTypeSignalKey (GType type, string name) {
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this.type = type;
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signal_name = name;
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}
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public override bool Equals (object o) {
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if (o is GTypeSignalKey) {
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GTypeSignalKey k = (GTypeSignalKey) o;
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return k.type.Equals (this.type) && signal_name.Equals (k.signal_name);
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}
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return base.Equals (o);
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}
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public override int GetHashCode() {
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return type.GetHashCode() ^ signal_name.GetHashCode();
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}
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}
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struct SignalQuery {
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public uint signal_id;
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public string signal_name;
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public GType itype;
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public uint signal_flags;
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public GType return_type;
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public uint n_params;
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public Type[] param_types;
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}
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static Hashtable SignalEmitInfo = new Hashtable ();
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public static object Emit (GLib.Object o, string name, params object[] parameters) {
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SignalQuery query;
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IntPtr type = gstsharp_g_type_from_instance (o.Handle);
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GType gtype = new GType (type);
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string signal_name, signal_detail;
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uint signal_detail_quark = 0;
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int colon;
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colon = name.LastIndexOf ("::");
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if (colon == -1) {
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signal_name = name;
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signal_detail = String.Empty;
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} else {
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signal_name = name.Substring (0, colon);
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signal_detail = name.Substring (colon + 2);
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}
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GTypeSignalKey key = new GTypeSignalKey (gtype, signal_name);
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if (SignalEmitInfo[key] == null) {
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IntPtr native_string = GLib.Marshaller.StringToPtrGStrdup (signal_name);
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uint signal_id = g_signal_lookup (native_string, type);
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GLib.Marshaller.Free (native_string);
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if (signal_id == 0)
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throw new NotSupportedException (String.Format ("{0} has no signal of name {1}", o, name));
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GSignalQuery q = new GSignalQuery ();
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g_signal_query (signal_id, ref q);
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if (q.signal_id == 0)
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throw new NotSupportedException (String.Format ("{0} couldn't be queried for signal with name {1}", o, name));
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query = new SignalQuery ();
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query.signal_id = signal_id;
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query.signal_name = GLib.Marshaller.Utf8PtrToString (q.signal_name);
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query.itype = new GType (q.itype);
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query.signal_flags = q.signal_flags;
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query.return_type = new GType (q.return_type);
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query.n_params = q.n_params;
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query.param_types = new Type[q.n_params];
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for (int i = 0; i < query.n_params; i++) {
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IntPtr t = Marshal.ReadIntPtr (q.param_types, i);
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GType g = new GType (t);
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query.param_types[i] = (Type) g;
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}
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SignalEmitInfo.Add (key, query);
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}
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query = (SignalQuery) SignalEmitInfo[key];
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GLib.Value[] signal_parameters = new GLib.Value[query.n_params + 1];
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signal_parameters[0] = new GLib.Value (o);
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if (parameters.Length != query.n_params)
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throw new ApplicationException (String.Format ("Invalid number of parameters: expected {0}, got {1}", query.n_params, parameters.Length));
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for (int i = 0; i < query.n_params; i++) {
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Type expected_type = (Type) query.param_types[i];
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Type given_type = parameters[i].GetType ();
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if (expected_type != given_type && ! given_type.IsSubclassOf (given_type))
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throw new ApplicationException (String.Format ("Invalid parameter type: expected {0}, got {1}", expected_type, given_type));
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signal_parameters[i + 1] = new GLib.Value (parameters[i]);
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}
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GLib.Value return_value = new GLib.Value ();
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if (query.return_type != GType.Invalid && query.return_type != GType.None)
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return_value.Init (query.return_type);
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if (signal_detail != String.Empty) {
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IntPtr native_string = GLib.Marshaller.StringToPtrGStrdup (signal_detail);
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signal_detail_quark = g_quark_from_string (native_string);
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GLib.Marshaller.Free (native_string);
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}
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g_signal_emitv (signal_parameters, query.signal_id, signal_detail_quark, ref return_value);
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foreach (GLib.Value v in signal_parameters)
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v.Dispose ();
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object ret = (query.return_type != GType.Invalid && query.return_type != GType.None) ? return_value.Val : null;
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if (ret != null)
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return_value.Dispose ();
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return ret;
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}
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public delegate void SignalHandler (object o, SignalArgs args);
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public static class DynamicSignal
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{
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private static readonly int gvalue_struct_size = Marshal.SizeOf (typeof(GLib.Value));
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class ObjectSignalKey
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{
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object o;
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string signal_name;
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public ObjectSignalKey (object o, string name)
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{
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this.o = o;
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signal_name = name;
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}
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public override bool Equals (object o)
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{
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if (o is ObjectSignalKey) {
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ObjectSignalKey k = (ObjectSignalKey)o;
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return k.o.Equals (this.o) && signal_name.Equals (k.signal_name);
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}
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return base.Equals (o);
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}
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public override int GetHashCode ()
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{
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return o.GetHashCode () ^ signal_name.GetHashCode ();
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}
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}
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class SignalInfo
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{
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uint handlerId;
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IntPtr closure;
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Delegate registeredHandler;
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Type argsType;
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public IntPtr Closure {
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get {
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return closure;
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}
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set {
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closure = value;
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}
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}
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public uint HandlerId {
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get {
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return handlerId;
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}
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set {
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handlerId = value;
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}
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}
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public Delegate RegisteredHandler {
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get {
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return registeredHandler;
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}
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set {
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registeredHandler = value;
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}
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}
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public Type ArgsType {
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get {
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return argsType;
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}
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set {
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argsType = value;
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}
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}
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public SignalInfo (uint handlerId, IntPtr closure, Delegate registeredHandler)
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{
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this.handlerId = handlerId;
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this.closure = closure;
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this.registeredHandler = registeredHandler;
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if (!IsValidDelegate (registeredHandler))
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throw new Exception ("Invalid delegate");
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MethodInfo mi = registeredHandler.Method;
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ParameterInfo[] parms = mi.GetParameters ();
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this.argsType = parms [1].ParameterType;
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}
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public void UpdateArgsType (Delegate d)
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{
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if (!IsCompatibleDelegate (d))
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throw new Exception ("Incompatible delegate");
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MethodInfo mi = d.Method;
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ParameterInfo[] parms = mi.GetParameters ();
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Type t1 = parms [1].ParameterType;
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Type t2 = argsType;
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if (t1 == t2)
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return;
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if (t1.IsSubclassOf (t2))
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argsType = t1;
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else if (t2.IsSubclassOf (t1))
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argsType = t2;
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else
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throw new Exception ("Incompatible delegate");
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}
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public bool IsCompatibleDelegate (Delegate d)
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{
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if (!IsValidDelegate (d))
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return false;
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MethodInfo mi = d.Method;
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ParameterInfo[] parms = mi.GetParameters ();
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if (parms [1].ParameterType != this.argsType &&
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!parms [1].ParameterType.IsSubclassOf (this.argsType) &&
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!this.argsType.IsSubclassOf (parms [1].ParameterType))
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return false;
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return true;
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}
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public static bool IsValidDelegate (Delegate d)
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{
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MethodInfo mi = d.Method;
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if (mi.ReturnType != typeof(void))
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return false;
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ParameterInfo[] parms = mi.GetParameters ();
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if (parms.Length != 2)
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return false;
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if (parms [1].ParameterType != typeof(GLib.SignalArgs) &&
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!parms [1].ParameterType.IsSubclassOf (typeof(GLib.SignalArgs)))
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return false;
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return true;
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}
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}
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|
||||
static Hashtable SignalHandlers = new Hashtable ();
|
||||
|
||||
static GClosureMarshal marshalHandler = new GClosureMarshal (OnMarshal);
|
||||
|
||||
public static void Connect (GLib.Object o, string name, SignalHandler handler)
|
||||
{
|
||||
Connect (o, name, false, (Delegate)handler);
|
||||
}
|
||||
|
||||
public static void Connect (GLib.Object o, string name,
|
||||
bool after, SignalHandler handler)
|
||||
{
|
||||
Connect (o, name, after, (Delegate)handler);
|
||||
}
|
||||
|
||||
public static void Connect (GLib.Object o, string name, Delegate handler)
|
||||
{
|
||||
Connect (o, name, false, handler);
|
||||
}
|
||||
|
||||
static int g_closure_sizeof = gstsharp_g_closure_sizeof ();
|
||||
|
||||
public static void Connect (GLib.Object o, string name,
|
||||
bool after, Delegate handler)
|
||||
{
|
||||
Delegate newHandler;
|
||||
|
||||
ObjectSignalKey k = new ObjectSignalKey (o, name);
|
||||
|
||||
if (!SignalInfo.IsValidDelegate (handler))
|
||||
throw new Exception ("Invalid delegate");
|
||||
|
||||
if (SignalHandlers [k] != null) {
|
||||
SignalInfo si = (SignalInfo)SignalHandlers [k];
|
||||
if (!si.IsCompatibleDelegate (handler))
|
||||
throw new Exception ("Incompatible delegate");
|
||||
|
||||
newHandler = Delegate.Combine (si.RegisteredHandler, handler);
|
||||
si.UpdateArgsType (handler);
|
||||
si.RegisteredHandler = newHandler;
|
||||
} else {
|
||||
if (!SignalInfo.IsValidDelegate (handler))
|
||||
throw new Exception ("Invalid delegate");
|
||||
|
||||
IntPtr closure = g_closure_new_simple (g_closure_sizeof, IntPtr.Zero);
|
||||
g_closure_set_meta_marshal (closure, (IntPtr)GCHandle.Alloc (k), marshalHandler);
|
||||
uint signalId = g_signal_connect_closure (o.Handle, name, closure, after);
|
||||
SignalHandlers.Add (k, new SignalInfo (signalId, closure, handler));
|
||||
}
|
||||
}
|
||||
|
||||
[DllImport ("libgstreamersharpglue-1.0.0.dll")]
|
||||
static extern int gstsharp_g_closure_sizeof ();
|
||||
|
||||
public static void Disconnect (GLib.Object o, string name, Delegate handler)
|
||||
{
|
||||
ObjectSignalKey k = new ObjectSignalKey (o, name);
|
||||
if (SignalHandlers [k] != null) {
|
||||
SignalInfo si = (SignalInfo)SignalHandlers [k];
|
||||
Delegate newHandler = Delegate.Remove (si.RegisteredHandler, handler);
|
||||
if (newHandler == null || handler == null) {
|
||||
g_signal_handler_disconnect (o.Handle, si.HandlerId);
|
||||
SignalHandlers.Remove (k);
|
||||
} else {
|
||||
si.RegisteredHandler = newHandler;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static void OnMarshal (IntPtr closure, ref GLib.Value retval, uint argc, IntPtr argsPtr,
|
||||
IntPtr ihint, IntPtr data)
|
||||
{
|
||||
object[] args = new object[argc - 1];
|
||||
object o = ((GLib.Value)Marshal.PtrToStructure (argsPtr, typeof(GLib.Value))).Val;
|
||||
|
||||
for (int i = 1; i < argc; i++) {
|
||||
IntPtr struct_ptr = (IntPtr)((long)argsPtr + (i * gvalue_struct_size));
|
||||
GLib.Value argument = (GLib.Value)Marshal.PtrToStructure (struct_ptr, typeof(GLib.Value));
|
||||
args [i - 1] = argument.Val;
|
||||
}
|
||||
|
||||
if (data == IntPtr.Zero) {
|
||||
Console.Error.WriteLine ("No available data");
|
||||
return;
|
||||
}
|
||||
|
||||
ObjectSignalKey k = (ObjectSignalKey)((GCHandle)data).Target;
|
||||
if (k != null) {
|
||||
SignalInfo si = (SignalInfo)SignalHandlers [k];
|
||||
GLib.SignalArgs arg = (GLib.SignalArgs)Activator.CreateInstance (si.ArgsType);
|
||||
arg.Args = args;
|
||||
si.RegisteredHandler.DynamicInvoke (new object[] { o, arg });
|
||||
if (arg.RetVal != null) {
|
||||
retval.Val = arg.RetVal;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
[DllImport ("libgobject-2.0-0.dll")]
|
||||
static extern IntPtr g_closure_new_simple (int size, IntPtr data);
|
||||
|
||||
[DllImport ("libgobject-2.0-0.dll")]
|
||||
static extern uint g_signal_connect_closure (IntPtr instance,
|
||||
string name, IntPtr closure, bool after);
|
||||
|
||||
[DllImport ("libgobject-2.0-0.dll")]
|
||||
static extern void g_closure_set_meta_marshal (IntPtr closure, IntPtr data, GClosureMarshal marshal);
|
||||
|
||||
class GTypeSignalKey
|
||||
{
|
||||
GType type;
|
||||
string signal_name;
|
||||
|
||||
public GTypeSignalKey (GType type, string name)
|
||||
{
|
||||
this.type = type;
|
||||
signal_name = name;
|
||||
}
|
||||
|
||||
public override bool Equals (object o)
|
||||
{
|
||||
if (o is GTypeSignalKey) {
|
||||
GTypeSignalKey k = (GTypeSignalKey)o;
|
||||
return k.type.Equals (this.type) && signal_name.Equals (k.signal_name);
|
||||
}
|
||||
return base.Equals (o);
|
||||
}
|
||||
|
||||
public override int GetHashCode ()
|
||||
{
|
||||
return type.GetHashCode () ^ signal_name.GetHashCode ();
|
||||
}
|
||||
}
|
||||
|
||||
struct SignalQuery
|
||||
{
|
||||
public uint signal_id;
|
||||
public string signal_name;
|
||||
public GType itype;
|
||||
public uint signal_flags;
|
||||
public GType return_type;
|
||||
public uint n_params;
|
||||
public Type[] param_types;
|
||||
}
|
||||
|
||||
static Hashtable SignalEmitInfo = new Hashtable ();
|
||||
|
||||
public static object Emit (GLib.Object o, string name, params object[] parameters)
|
||||
{
|
||||
SignalQuery query;
|
||||
IntPtr type = gstsharp_g_type_from_instance (o.Handle);
|
||||
GType gtype = new GType (type);
|
||||
string signal_name, signal_detail;
|
||||
uint signal_detail_quark = 0;
|
||||
int colon;
|
||||
|
||||
colon = name.LastIndexOf ("::");
|
||||
|
||||
if (colon == -1) {
|
||||
signal_name = name;
|
||||
signal_detail = String.Empty;
|
||||
} else {
|
||||
signal_name = name.Substring (0, colon);
|
||||
signal_detail = name.Substring (colon + 2);
|
||||
}
|
||||
|
||||
GTypeSignalKey key = new GTypeSignalKey (gtype, signal_name);
|
||||
|
||||
if (SignalEmitInfo [key] == null) {
|
||||
IntPtr native_string = GLib.Marshaller.StringToPtrGStrdup (signal_name);
|
||||
uint signal_id = g_signal_lookup (native_string, type);
|
||||
GLib.Marshaller.Free (native_string);
|
||||
|
||||
if (signal_id == 0)
|
||||
throw new NotSupportedException (String.Format ("{0} has no signal of name {1}", o, name));
|
||||
GSignalQuery q = new GSignalQuery ();
|
||||
g_signal_query (signal_id, ref q);
|
||||
|
||||
if (q.signal_id == 0)
|
||||
throw new NotSupportedException (String.Format ("{0} couldn't be queried for signal with name {1}", o, name));
|
||||
|
||||
query = new SignalQuery ();
|
||||
|
||||
query.signal_id = signal_id;
|
||||
query.signal_name = GLib.Marshaller.Utf8PtrToString (q.signal_name);
|
||||
query.itype = new GType (q.itype);
|
||||
query.signal_flags = q.signal_flags;
|
||||
query.return_type = new GType (q.return_type);
|
||||
query.n_params = q.n_params;
|
||||
query.param_types = new Type[q.n_params];
|
||||
|
||||
for (int i = 0; i < query.n_params; i++) {
|
||||
IntPtr t = Marshal.ReadIntPtr (q.param_types, i);
|
||||
GType g = new GType (t);
|
||||
|
||||
query.param_types [i] = (Type)g;
|
||||
}
|
||||
|
||||
SignalEmitInfo.Add (key, query);
|
||||
}
|
||||
|
||||
query = (SignalQuery)SignalEmitInfo [key];
|
||||
GLib.Value[] signal_parameters = new GLib.Value[query.n_params + 1];
|
||||
signal_parameters [0] = new GLib.Value (o);
|
||||
|
||||
if (parameters.Length != query.n_params)
|
||||
throw new ApplicationException (String.Format ("Invalid number of parameters: expected {0}, got {1}", query.n_params, parameters.Length));
|
||||
|
||||
for (int i = 0; i < query.n_params; i++) {
|
||||
Type expected_type = (Type)query.param_types [i];
|
||||
Type given_type = parameters [i].GetType ();
|
||||
|
||||
if (expected_type != given_type && !given_type.IsSubclassOf (given_type))
|
||||
throw new ApplicationException (String.Format ("Invalid parameter type: expected {0}, got {1}", expected_type, given_type));
|
||||
|
||||
signal_parameters [i + 1] = new GLib.Value (parameters [i]);
|
||||
}
|
||||
|
||||
GLib.Value return_value = new GLib.Value ();
|
||||
if (query.return_type != GType.Invalid && query.return_type != GType.None)
|
||||
return_value.Init (query.return_type);
|
||||
|
||||
if (signal_detail != String.Empty) {
|
||||
IntPtr native_string = GLib.Marshaller.StringToPtrGStrdup (signal_detail);
|
||||
signal_detail_quark = g_quark_from_string (native_string);
|
||||
GLib.Marshaller.Free (native_string);
|
||||
}
|
||||
|
||||
g_signal_emitv (signal_parameters, query.signal_id, signal_detail_quark, ref return_value);
|
||||
|
||||
foreach (GLib.Value v in signal_parameters)
|
||||
v.Dispose ();
|
||||
|
||||
object ret = (query.return_type != GType.Invalid && query.return_type != GType.None) ? return_value.Val : null;
|
||||
|
||||
if (ret != null)
|
||||
return_value.Dispose ();
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
[DllImport ("libgstreamersharpglue-1.0.0.dll") ]
|
||||
static extern IntPtr gstsharp_g_type_from_instance (IntPtr o);
|
||||
[DllImport ("libgstreamersharpglue-1.0.0.dll")]
|
||||
static extern IntPtr gstsharp_g_type_from_instance (IntPtr o);
|
||||
|
||||
[DllImport ("libgobject-2.0-0.dll") ]
|
||||
static extern int g_signal_handler_disconnect (IntPtr o, uint handler_id);
|
||||
[DllImport ("libgobject-2.0-0.dll")]
|
||||
static extern int g_signal_handler_disconnect (IntPtr o, uint handler_id);
|
||||
|
||||
[DllImport ("libgobject-2.0-0.dll") ]
|
||||
static extern uint g_signal_lookup (IntPtr name, IntPtr itype);
|
||||
[DllImport ("libgobject-2.0-0.dll")]
|
||||
static extern uint g_signal_lookup (IntPtr name, IntPtr itype);
|
||||
|
||||
[DllImport ("libglib-2.0-0.dll") ]
|
||||
static extern uint g_quark_from_string (IntPtr str);
|
||||
[DllImport ("libglib-2.0-0.dll")]
|
||||
static extern uint g_quark_from_string (IntPtr str);
|
||||
|
||||
[DllImport ("libgobject-2.0-0.dll") ]
|
||||
static extern void g_signal_emitv (GLib.Value[] parameters, uint signal_id, uint detail, ref GLib.Value return_value);
|
||||
[DllImport ("libgobject-2.0-0.dll")]
|
||||
static extern void g_signal_emitv (GLib.Value[] parameters, uint signal_id, uint detail, ref GLib.Value return_value);
|
||||
|
||||
[StructLayout (LayoutKind.Sequential) ]
|
||||
struct GSignalQuery {
|
||||
public uint signal_id;
|
||||
public IntPtr signal_name;
|
||||
public IntPtr itype;
|
||||
public uint signal_flags;
|
||||
public IntPtr return_type;
|
||||
public uint n_params;
|
||||
public IntPtr param_types;
|
||||
}
|
||||
[StructLayout (LayoutKind.Sequential)]
|
||||
struct GSignalQuery
|
||||
{
|
||||
public uint signal_id;
|
||||
public IntPtr signal_name;
|
||||
public IntPtr itype;
|
||||
public uint signal_flags;
|
||||
public IntPtr return_type;
|
||||
public uint n_params;
|
||||
public IntPtr param_types;
|
||||
}
|
||||
|
||||
[DllImport ("libgobject-2.0-0.dll") ]
|
||||
static extern void g_signal_query (uint signal_id, ref GSignalQuery query);
|
||||
}
|
||||
[DllImport ("libgobject-2.0-0.dll")]
|
||||
static extern void g_signal_query (uint signal_id, ref GSignalQuery query);
|
||||
}
|
||||
}
|
||||
Loading…
Reference in a new issue