173 lines
3.4 KiB
C
173 lines
3.4 KiB
C
/*
|
|
* task.c
|
|
*
|
|
* Copyright (c) 1995-1997, John Kilburg <john@cs.unlv.edu>
|
|
*
|
|
* 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.
|
|
*
|
|
* 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, write to the Free Software
|
|
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*/
|
|
|
|
#include "port_before.h"
|
|
|
|
#include <stdio.h>
|
|
|
|
#include <X11/IntrinsicP.h>
|
|
#include <X11/StringDefs.h>
|
|
|
|
#include "port_after.h"
|
|
|
|
#include "ChimeraP.h"
|
|
|
|
struct ChimeraTaskP
|
|
{
|
|
ChimeraTaskProc func;
|
|
void *closure;
|
|
int line;
|
|
char *file;
|
|
bool removed;
|
|
};
|
|
|
|
struct ChimeraSchedulerP
|
|
{
|
|
MemPool mp;
|
|
GList oldtasks;
|
|
GList tasks;
|
|
XtWorkProcId wpid;
|
|
};
|
|
|
|
static Boolean ScheduleTaskProc _ArgProto((XtPointer));
|
|
|
|
/*
|
|
* ScheduleTaskProc
|
|
*/
|
|
static Boolean
|
|
ScheduleTaskProc(closure)
|
|
XtPointer closure;
|
|
{
|
|
ChimeraResources cres = (ChimeraResources)closure;
|
|
ChimeraScheduler cs = cres->cs;
|
|
ChimeraTask wt;
|
|
|
|
cs->wpid = 0;
|
|
|
|
while ((wt = (ChimeraTask)GListPop(cs->tasks)) != NULL)
|
|
{
|
|
if (!wt->removed)
|
|
{
|
|
if (cres->printTaskInfo)
|
|
{
|
|
fprintf (stderr, "Task Called %s, %d\n", wt->file, wt->line);
|
|
}
|
|
CMethod(wt->func)(wt->closure);
|
|
}
|
|
GListAddTail(cs->oldtasks, wt);
|
|
memset(wt, 1, sizeof(struct ChimeraTaskP));
|
|
}
|
|
|
|
return(True);
|
|
}
|
|
|
|
/*
|
|
* TaskSchedule
|
|
*/
|
|
ChimeraTask
|
|
TaskScheduleX(cres, func, closure, line, file)
|
|
ChimeraResources cres;
|
|
ChimeraTaskProc func;
|
|
void *closure;
|
|
int line;
|
|
char *file;
|
|
{
|
|
ChimeraTask wt;
|
|
char *detail;
|
|
|
|
if ((wt = (ChimeraTask)GListPop(cres->cs->oldtasks)) == NULL)
|
|
{
|
|
detail = "New";
|
|
wt = (ChimeraTask)MPGet(cres->mp, sizeof(struct ChimeraTaskP));
|
|
}
|
|
else detail = "Reused";
|
|
|
|
wt->func = func;
|
|
wt->closure = closure;
|
|
wt->line = line;
|
|
wt->file = file;
|
|
wt->removed = false;
|
|
|
|
GListAddTail(cres->cs->tasks, wt);
|
|
|
|
if (cres->cs->wpid == 0)
|
|
{
|
|
cres->cs->wpid = XtAppAddWorkProc(cres->appcon, ScheduleTaskProc, cres);
|
|
myassert(cres->cs->wpid != 0, "Bad assumption about XtAppAddWorkProc");
|
|
}
|
|
|
|
if (cres->printTaskInfo)
|
|
{
|
|
fprintf (stderr, "Task Created %s, %s, %d\n", detail, file, line);
|
|
}
|
|
|
|
return(wt);
|
|
}
|
|
|
|
/*
|
|
* TaskRemove
|
|
*/
|
|
void
|
|
TaskRemove(cres, wt)
|
|
ChimeraResources cres;
|
|
ChimeraTask wt;
|
|
{
|
|
ChimeraTask c;
|
|
GList list;
|
|
char *detail = "notfound";
|
|
|
|
list = cres->cs->tasks;
|
|
for (c = (ChimeraTask)GListGetHead(list); c != NULL;
|
|
c = (ChimeraTask)GListGetNext(list))
|
|
{
|
|
if (c == wt)
|
|
{
|
|
c->removed = true;
|
|
detail = "found";
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (cres->printTaskInfo)
|
|
{
|
|
fprintf (stderr, "Task Remove %s, %s, %d\n", detail, wt->file, wt->line);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* SchedulerCreate
|
|
*/
|
|
ChimeraScheduler
|
|
SchedulerCreate()
|
|
{
|
|
ChimeraScheduler cs;
|
|
MemPool mp;
|
|
|
|
mp = MPCreate();
|
|
cs = (ChimeraScheduler)MPCGet(mp, sizeof(struct ChimeraSchedulerP));
|
|
cs->mp = mp;
|
|
cs->oldtasks = GListCreateX(mp);
|
|
cs->tasks = GListCreateX(mp);
|
|
|
|
return(cs);
|
|
}
|