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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.
- *
- * __wait_packet.c,v 1.1.1.1 1994/04/04 04:30:14 amiga Exp
- *
- * __wait_packet.c,v
- * Revision 1.1.1.1 1994/04/04 04:30:14 amiga
- * Initial CVS check in.
- *
- * Revision 1.3 1992/07/04 19:08:41 mwild
- * change to new ix_sleep format, add wmesg-string
- *
- * Revision 1.2 1992/05/18 11:58:15 mwild
- * use dp_Port field, NT_REPLYMSG is not reliable
- *
- * Revision 1.1 1992/05/14 19:55:40 mwild
- * Initial revision
- *
- */
-
- #define _KERNEL
- #include "ixemul.h"
- #include "kprintf.h"
- #include <signal.h>
-
-
- /* I'm using dp_Port as an indicator whether this packet is
- free. If in use, this field can't be 0. */
- #define PACKET_IN_USE(sp) (sp->sp_Pkt.dp_Port)
-
- void
- __wait_sync_packet(struct StandardPacket *sp)
- {
- struct StandardPacket *prw;
- int omask;
-
- /* this is the synchronous way of dealing with packets that may
- * arrive at a port. */
-
- if (! PACKET_IN_USE (sp)) return;
-
- omask = syscall (SYS_sigsetmask, ~0);
-
- for (;;)
- {
- if ((prw = GetPacket(u.u_sync_mp)))
- {
- PACKET_IN_USE (prw) = 0;
- if (prw == sp) break;
- }
- else
- {
- Wait(1<<u.u_sync_mp->mp_SigBit);
- }
- }
-
- syscall (SYS_sigsetmask, omask);
- }
-
- void
- __wait_select_packet(struct StandardPacket *sp)
- {
- struct StandardPacket *prw;
- int omask;
-
- /* this is the synchronous way of dealing with packets that may
- * arrive at a port. */
-
- if (! PACKET_IN_USE (sp)) return;
-
- omask = syscall (SYS_sigsetmask, ~0);
-
- for (;;)
- {
- if ((prw = GetPacket(u.u_select_mp)))
- {
- PACKET_IN_USE (prw) = 0;
- if (prw == sp) break;
- }
- else
- {
- Wait(1<<u.u_select_mp->mp_SigBit);
- }
- }
-
- syscall (SYS_sigsetmask, omask);
- }
-