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/*
* Copyright (c) 2016 Samsung Electronics Co., Ltd All Rights Reserved
*
* Licensed under the Apache License, Version 2.0 (the License);
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an AS IS BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
using System;
using System.Collections.Generic;
namespace ElmSharp
{
public static class EcoreMainloop
{
static readonly Dictionary<int, Func<bool>> _taskMap = new Dictionary<int, Func<bool>>();
static readonly Object _taskLock = new Object();
static int _newTaskId = 0;
static Interop.Ecore.EcoreTaskCallback _nativeHandler;
static EcoreMainloop()
{
Interop.Ecore.ecore_init();
Interop.Ecore.ecore_main_loop_glib_integrate();
_nativeHandler = NativeHandler;
}
public static bool IsMainThread => Interop.Eina.eina_main_loop_is();
public static void Begin()
{
Interop.Ecore.ecore_main_loop_begin();
}
public static void Quit()
{
Interop.Ecore.ecore_main_loop_quit();
}
public static void Post(Action task)
{
int id = RegistHandler(() => { task(); return false; });
Interop.Ecore.ecore_idler_add(_nativeHandler, (IntPtr)id);
}
public static void PostAndWakeUp(Action task)
{
int id = RegistHandler(() => { task(); return false; });
Interop.Ecore.ecore_main_loop_thread_safe_call_async(_nativeHandler, (IntPtr)id);
}
public static void Send(Action task)
{
int id = RegistHandler(() => { task(); return false; });
Interop.Ecore.ecore_main_loop_thread_safe_call_sync(_nativeHandler, (IntPtr)id);
}
public static IntPtr AddTimer(double interval, Func<bool> handler)
{
int id = RegistHandler(handler);
return Interop.Ecore.ecore_timer_add(interval, _nativeHandler, (IntPtr)id);
}
public static void RemoveTimer(IntPtr id)
{
int taskId = (int)Interop.Ecore.ecore_timer_del(id);
_taskMap.Remove(taskId);
}
static int RegistHandler(Func<bool> task)
{
int taskId;
lock (_taskLock)
{
taskId = _newTaskId++;
}
_taskMap[taskId] = task;
return taskId;
}
static bool NativeHandler(IntPtr user_data)
{
int task_id = (int)user_data;
Func<bool> userAction = null;
_taskMap.TryGetValue(task_id, out userAction);
if (userAction != null)
{
_taskMap.Remove(task_id);
return userAction();
}
return false;
}
}
}
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