f5211acb74
Its 2 subclasses, IdleProxy and TimeoutProxy, were already implementing it, so we factor this implementation into the base class.
112 lines
3.2 KiB
C#
112 lines
3.2 KiB
C#
// GLib.Timeout.cs - Timeout class implementation
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//
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// Author(s):
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// Mike Kestner <mkestner@speakeasy.net>
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// Stephane Delcroix <stephane@delcroix.org>
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//
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// Copyright (c) 2002 Mike Kestner
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// Copyright (c) 2009 Novell, Inc.
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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.Generic;
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using System.Runtime.InteropServices;
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public delegate bool TimeoutHandler ();
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public class Timeout {
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[UnmanagedFunctionPointer (CallingConvention.Cdecl)]
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delegate bool TimeoutHandlerInternal ();
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internal class TimeoutProxy : SourceProxy {
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public TimeoutProxy (TimeoutHandler real)
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{
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real_handler = real;
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proxy_handler = new TimeoutHandlerInternal (Handler);
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}
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public bool Handler ()
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{
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try {
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TimeoutHandler timeout_handler = (TimeoutHandler) real_handler;
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bool cont = timeout_handler ();
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if (!cont)
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Remove ();
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return cont;
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} catch (Exception e) {
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ExceptionManager.RaiseUnhandledException (e, false);
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}
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return false;
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}
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}
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private Timeout () {}
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[DllImport (Global.GLibNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern uint g_timeout_add (uint interval, TimeoutHandlerInternal d, IntPtr data);
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public static uint Add (uint interval, TimeoutHandler hndlr)
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{
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TimeoutProxy p = new TimeoutProxy (hndlr);
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p.ID = g_timeout_add (interval, (TimeoutHandlerInternal) p.proxy_handler, IntPtr.Zero);
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Source.AddSourceHandler (p.ID, p);
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return p.ID;
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}
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[DllImport (Global.GLibNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern uint g_timeout_add_full (int priority, uint interval, TimeoutHandlerInternal d, IntPtr data, DestroyNotify notify);
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public static uint Add (uint interval, TimeoutHandler hndlr, Priority priority)
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{
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TimeoutProxy p = new TimeoutProxy (hndlr);
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p.ID = g_timeout_add_full ((int)priority, interval, (TimeoutHandlerInternal) p.proxy_handler, IntPtr.Zero, null);
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Source.AddSourceHandler (p.ID, p);
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return p.ID;
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}
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[DllImport (Global.GLibNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern uint g_timeout_add_seconds (uint interval, TimeoutHandlerInternal d, IntPtr data);
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public static uint AddSeconds (uint interval, TimeoutHandler hndlr)
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{
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TimeoutProxy p = new TimeoutProxy (hndlr);
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p.ID = g_timeout_add_seconds (interval, (TimeoutHandlerInternal) p.proxy_handler, IntPtr.Zero);
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Source.AddSourceHandler (p.ID, p);
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return p.ID;
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}
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public static void Remove (uint id)
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{
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Source.Remove (id);
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}
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public static bool Remove (TimeoutHandler hndlr)
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{
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return Source.RemoveSourceHandler (hndlr);
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}
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}
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}
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