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animutil
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time.c
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C/C++ Source or Header
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1988-11-10
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918b
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50 lines
#include <exec/types.h>
#include <exec/devices.h>
#include <devices/timer.h>
#include "defs.h"
#include "type.h"
#include "object.h"
#include "cell.h"
#include "func.h"
#include <stdio.h>
struct timerequest *CreateTimer (unit)
ULONG unit;
{
struct MsgPort *timerport;
struct timerequest *timermsg;
if (!(timerport = (struct MsgPort *) CreatePort ("Anim Timer", 0L)))
return NULL;
if (!(timermsg = (struct timerequest *) CreateExtIO (timerport, (long) sizeof (struct timerequest)))) {
DeletePort (timerport);
return NULL;
}
if (OpenDevice (TIMERNAME, unit, timermsg, 0L)) {
DeleteExtIO (timermsg);
DeletePort (timerport);
return NULL;
}
return timermsg;
}
void DeleteTimer (tr)
struct timerequest *tr;
{
struct MsgPort *tp;
if (tr) {
if ((tp = tr->tr_node.io_Message.mn_ReplyPort))
DeletePort (tp);
CloseDevice (tr);
DeleteExtIO (tr, (long) sizeof (struct timerequest));
}
}