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57972ab070
* glib/Idle.cs : add locking on the source_handlers. * glib/Source.cs : add locking on the source_handlers. * glib/Timeout.cs : add locking on the source_handlers. svn path=/trunk/gtk-sharp/; revision=41290
96 lines
2.5 KiB
C#
Executable File
96 lines
2.5 KiB
C#
Executable File
// GLib.Idle.cs - Idle class implementation
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//
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// Author: Mike Kestner <mkestner@speakeasy.net>
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// Rachel Hestilow <hestilow@ximian.com>
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//
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// Copyright (c) 2002 Mike Kestner
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// Copyright (c) Rachel Hestilow
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of version 2 of the Lesser GNU General
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// Public License as published by the Free Software Foundation.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this program; if not, write to the
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// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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// Boston, MA 02111-1307, USA.
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namespace GLib {
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using System;
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using System.Collections;
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using System.Runtime.InteropServices;
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public delegate bool IdleHandler ();
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public class Idle {
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internal class IdleProxy : SourceProxy {
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public IdleProxy (IdleHandler real)
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{
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real_handler = real;
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proxy_handler = new IdleHandler (Handler);
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}
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public bool Handler ()
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{
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IdleHandler idle_handler = (IdleHandler) real_handler;
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bool cont = idle_handler ();
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if (!cont)
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Remove ();
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return cont;
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}
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}
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private Idle ()
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{
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}
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[DllImport("libglib-2.0-0.dll")]
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static extern uint g_idle_add (IdleHandler d, IntPtr data);
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public static uint Add (IdleHandler hndlr)
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{
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IdleProxy p = new IdleProxy (hndlr);
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uint code = g_idle_add ((IdleHandler) p.proxy_handler, IntPtr.Zero);
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lock (Source.source_handlers)
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Source.source_handlers [code] = p;
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return code;
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}
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[DllImport("libglib-2.0-0.dll")]
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static extern bool g_source_remove_by_funcs_user_data (Delegate d, IntPtr data);
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public static bool Remove (IdleHandler hndlr)
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{
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bool result = false;
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ArrayList keys = new ArrayList ();
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lock (Source.source_handlers) {
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foreach (uint code in Source.source_handlers.Keys) {
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IdleProxy p = Source.source_handlers [code] as IdleProxy;
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if (p != null && p.real_handler == hndlr) {
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keys.Add (code);
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result = g_source_remove_by_funcs_user_data (p.proxy_handler, IntPtr.Zero);
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}
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}
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foreach (object key in keys)
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Source.source_handlers.Remove (key);
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}
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return result;
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}
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}
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}
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