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dos_exec.c
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2000-01-27
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/*
Directory Opus 4
Original GPL release version 4.12
Copyright 1993-2000 Jonathan Potter
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
All users of Directory Opus 4 (including versions distributed
under the GPL) are entitled to upgrade to the latest version of
Directory Opus version 5 at a reduced price. Please see
http://www.gpsoft.com.au for more information.
The release of Directory Opus 4 under the GPL in NO WAY affects
the existing commercial status of Directory Opus 5.
*/
#include "dopuslib.h"
__asm __saveds DoSendPacket(register __a0 struct MsgPort *port,
register __d0 int action,
register __a1 ULONG *args,
register __d1 int nargs)
{
struct StandardPacket *packet;
struct MsgPort *repport;
struct Process *myproc;
int count,res1,a;
ULONG *pargs;
myproc=(struct Process *)FindTask(NULL);
if (!(packet=AllocMem(sizeof(struct StandardPacket),MEMF_PUBLIC|MEMF_CLEAR)))
return(0);
if (!(repport=LCreatePort(NULL,0))) {
FreeMem(packet,sizeof(struct StandardPacket));
return(0);
}
packet->sp_Msg.mn_Node.ln_Name=(char *)&(packet->sp_Pkt);
packet->sp_Pkt.dp_Link=&(packet->sp_Msg);
packet->sp_Pkt.dp_Port=repport;
packet->sp_Pkt.dp_Type=action;
pargs=(ULONG *)&(packet->sp_Pkt.dp_Arg1);
if (nargs>7) nargs=7;
for (count=0;count<nargs;count++) pargs[count]=args[count];
PutMsg(port,(struct Message *)packet);
WaitPort(repport);
GetMsg(repport);
res1=packet->sp_Pkt.dp_Res1;
a=packet->sp_Pkt.dp_Res2;
FreeMem(packet,sizeof(struct StandardPacket));
LDeletePort(repport);
if (myproc) myproc->pr_Result2=a;
return(res1);
}
ULONG __asm __saveds DoAllocRemember(register __a0 struct DOpusRemember **key,
register __d0 ULONG size,
register __d1 ULONG type)
{
struct DOpusRemember *node,*cur;
size+=sizeof(struct DOpusRemember);
if (!(node=AllocMem(size,type))) return(NULL);
node->next=NULL;
if ((*key)==NULL) {
node->current=node;
(*key)=node;
}
else {
cur=(*key)->current;
(*key)->current=node;
cur->next=node;
}
node->size=size;
size=(ULONG)node+sizeof(struct DOpusRemember);
return((ULONG)size);
}
void __asm __saveds DoFreeRemember(register __a0 struct DOpusRemember **key)
{
struct DOpusRemember *node,*cur;
if ((*key)==NULL) return;
node=(*key);
while (node) {
cur=node->next;
FreeMem(node,node->size);
node=cur;
}
(*key)=NULL;
}
void __asm __saveds DoFreeRemEntry(register __a0 struct DOpusRemember **key,
register __a1 char *pointer)
{
struct DOpusRemember *node,*last=NULL;
if ((*key)==NULL) return;
pointer-=sizeof(struct DOpusRemember);
node=(*key);
while (node) {
if (node==(struct DOpusRemember *)pointer) {
if (last) last->next=node->next;
if ((*key)->current==node) (*key)->current=last;
if (node==(*key)) {
last=(*key)->current;
if (((*key)=node->next)) (*key)->current=last;
}
FreeMem(node,node->size);
break;
}
last=node;
node=node->next;
}
}