Mercurial > projects > hoofbaby
view deps/Platinum/Source/Core/PltTaskManager.cpp @ 0:3425707ddbf6
Initial import (hopefully this mercurial stuff works...)
author | fraserofthenight |
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date | Mon, 06 Jul 2009 08:06:28 -0700 |
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/***************************************************************** | | Platinum - Task Manager | | Copyright (c) 2004-2008, Plutinosoft, LLC. | All rights reserved. | http://www.plutinosoft.com | | This program is free software; you can redistribute it and/or | modify it under the terms of the GNU General Public License | as published by the Free Software Foundation; either version 2 | of the License, or (at your option) any later version. | | OEMs, ISVs, VARs and other distributors that combine and | distribute commercially licensed software with Platinum software | and do not wish to distribute the source code for the commercially | licensed software under version 2, or (at your option) any later | version, of the GNU General Public License (the "GPL") must enter | into a commercial license agreement with Plutinosoft, LLC. | | This program is distributed in the hope that it will be useful, | but WITHOUT ANY WARRANTY; without even the implied warranty of | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | GNU General Public License for more details. | | You should have received a copy of the GNU General Public License | along with this program; see the file LICENSE.txt. If not, write to | the Free Software Foundation, Inc., | 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. | http://www.gnu.org/licenses/gpl-2.0.html | ****************************************************************/ /*---------------------------------------------------------------------- | includes +---------------------------------------------------------------------*/ #include "PltTaskManager.h" #include "PltThreadTask.h" NPT_SET_LOCAL_LOGGER("platinum.core.taskmanager") /*---------------------------------------------------------------------- | PLT_TaskManager::PLT_TaskManager +---------------------------------------------------------------------*/ PLT_TaskManager::PLT_TaskManager(NPT_Cardinal max_items /* = 0 */) : m_Queue(max_items?new NPT_Queue<int>(max_items):NULL) { } /*---------------------------------------------------------------------- | PLT_TaskManager::~PLT_TaskManager +---------------------------------------------------------------------*/ PLT_TaskManager::~PLT_TaskManager() { StopAllTasks(); } /*---------------------------------------------------------------------- | PLT_TaskManager::StartTask +---------------------------------------------------------------------*/ NPT_Result PLT_TaskManager::StartTask(PLT_ThreadTask* task, NPT_TimeInterval* delay /* = NULL*/, bool auto_destroy /* = true */) { return task->Start(this, delay, auto_destroy); } /*---------------------------------------------------------------------- | PLT_TaskManager::StopAllTasks +---------------------------------------------------------------------*/ NPT_Result PLT_TaskManager::StopAllTasks() { // unblock the queue if any if (m_Queue) { NPT_Queue<int>* queue = m_Queue; m_Queue = NULL; delete queue; } // stop all tasks first but don't block // otherwise when RemoveTask is called by PLT_ThreadTask::Run // it will deadlock with m_TasksLock { NPT_AutoLock lock(m_TasksLock); NPT_List<PLT_ThreadTask*>::Iterator task = m_Tasks.GetFirstItem(); while (task) { (*task)->Stop(false); ++task; } } // then wait for list to become empty // as tasks remove themselves from the list while (1) { { NPT_AutoLock lock(m_TasksLock); if (m_Tasks.GetItemCount() == 0) return NPT_SUCCESS; } NPT_System::Sleep(NPT_TimeInterval(0, 10000)); } return NPT_SUCCESS; } /*---------------------------------------------------------------------- | PLT_TaskManager::AddTask +---------------------------------------------------------------------*/ NPT_Result PLT_TaskManager::AddTask(PLT_ThreadTask* task) { if (m_Queue) { NPT_CHECK_SEVERE(m_Queue->Push(new int)); } { NPT_AutoLock lock(m_TasksLock); return m_Tasks.Add(task); } } /*---------------------------------------------------------------------- | PLT_TaskManager::RemoveTask +---------------------------------------------------------------------*/ // called by a PLT_ThreadTask::Run when done NPT_Result PLT_TaskManager::RemoveTask(PLT_ThreadTask* task) { if (m_Queue) { int* val = NULL; if (NPT_SUCCEEDED(m_Queue->Pop(val))) delete val; } { NPT_AutoLock lock(m_TasksLock); m_Tasks.Remove(task); } // cleanup task only if auto-destroy flag was set if (task->m_AutoDestroy) delete task; return NPT_SUCCESS; }