Descent3/lib/TaskSystem.h

86 lines
2.3 KiB
C++

/*
* Descent 3
* Copyright (C) 2024 Parallax Software
*
* 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 3 of the License, or
* (at your option) any later version.
*
* 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. If not, see <http://www.gnu.org/licenses/>.
--- HISTORICAL COMMENTS FOLLOW ---
* $Logfile: /DescentIII/Main/lib/TaskSystem.h $
* $Revision: 3 $
* $Date: 9/14/98 4:02p $
* $Author: Samir $
*
* Task manager
*
* $Log: /DescentIII/Main/lib/TaskSystem.h $
*
* 3 9/14/98 4:02p Samir
* allow variable lengths of blocking for tasks.
*
* 2 8/10/98 5:54p Samir
* added mutexes.
*
* 1 5/23/97 4:07p Samir
* Initial revision.
*
* $NoKeywords: $
*/
#ifndef TASKSYSTEM_H
#define TASKSYSTEM_H
#include "pstypes.h"
enum tTaskPriority { TASKPRIORITY_HIGHEST, TASKPRIORITY_NORMAL, TASKPRIORITY_LOWEST };
// Since this system handles concepts such as multitasking, and the such,
// we will define the event structures differently, since different systems
// handle multitasking differently.
class osEvent {
public:
#if defined(WIN32)
void *event_os_handle; // this is the Win32 Event Handle
#endif // WIN32
public:
osEvent(char *name);
~osEvent();
bool error() const; // reports error
void signal(); // signal the event so blocking can stop
void clear(); // clear the event so blocking can continue
bool block(int timeout = -1); // block until signaled (-1 = full blocking, else time in ms to block)
};
class osTask {
public:
#if defined(WIN32)
void *task_os_handle; // This is the Win32 Thread Handle
#endif // WIN32
public:
osTask(unsigned (*func)(void *), tTaskPriority priority, void *parm = NULL);
~osTask();
bool error() const; // reports error
void suspend(); // suspends task
void resume(); // resumes task
};
#endif