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createport.c
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1995-05-28
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/*
* This file is part of ixemul.library for the Amiga.
* Copyright (C) 1991, 1992 Markus M. Wild
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* $Id: createport.c,v 1.2 1994/06/19 15:09:29 rluebbert Exp $
*
* $Log: createport.c,v $
* Revision 1.2 1994/06/19 15:09:29 rluebbert
* *** empty log message ***
*
*/
#define KERNEL
#include "ixemul.h"
#include "kprintf.h"
#include <exec/ports.h>
#include <exec/interrupts.h>
struct MsgPort *
CreatePort(const char *name, int pri)
{
int sigBit;
struct MsgPort *port;
if ((sigBit = AllocSignal(-1)) == -1) return 0;
port = (struct MsgPort *) kmalloc (sizeof (struct MsgPort));
if (! port)
{
FreeSignal (sigBit);
errno = ENOMEM;
KPRINTF (("&errno = %lx, errno = %ld\n", &errno, errno));
return 0;
}
bzero (port, sizeof (struct MsgPort));
port->mp_Node.ln_Name = (char *) name;
port->mp_Node.ln_Pri = pri;
port->mp_Node.ln_Type = NT_MSGPORT;
port->mp_Flags = PA_SIGNAL;
port->mp_SigBit = sigBit;
port->mp_SigTask = FindTask (0);
if (name)
AddPort (port);
else
NewList (&(port->mp_MsgList));
return port;
}
struct MsgPort *
CreateInterruptPort (const char *name, int pri, void (*code)(), void *data)
{
struct MsgPort *port;
struct Interrupt *interrupt;
if (port = (struct MsgPort *) kmalloc (sizeof (struct MsgPort)))
{
if (interrupt = (struct Interrupt *) kmalloc (sizeof (struct Interrupt)))
{
bzero (interrupt, sizeof (struct Interrupt));
interrupt->is_Node.ln_Type = NT_INTERRUPT;
/* as a convenience, if data is 0, set it to the port itself */
interrupt->is_Data = data ? data : port; /*rwl*/
interrupt->is_Code = code;
bzero (port, sizeof (struct MsgPort));
port->mp_Node.ln_Name = (char *) name;
port->mp_Node.ln_Pri = pri;
port->mp_Node.ln_Type = NT_MSGPORT;
port->mp_Flags = PA_SOFTINT;
port->mp_SoftInt = interrupt;
if (name)
AddPort (port);
else
NewList (&(port->mp_MsgList));
return port;
}
kfree (port);
}
errno = ENOMEM;
KPRINTF (("&errno = %lx, errno = %ld\n", &errno, errno));
return 0;
}