83b77cbb1b
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@427 6ac86273-5f31-0410-b378-82cca8765d1b
144 lines
5.3 KiB
C
144 lines
5.3 KiB
C
/****************************************************************/
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/* */
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/* process.h */
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/* */
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/* DOS exec data structures & declarations */
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/* */
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/* November 23, 1991 */
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/* */
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/* Copyright (c) 1995 */
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/* Pasquale J. Villani */
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/* All Rights Reserved */
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/* */
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/* This file is part of DOS-C. */
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/* */
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/* DOS-C is free software; you can redistribute it and/or */
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/* modify it under the terms of the GNU General Public License */
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/* as published by the Free Software Foundation; either version */
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/* 2, or (at your option) any later version. */
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/* */
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/* DOS-C is distributed in the hope that it will be useful, but */
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/* WITHOUT ANY WARRANTY; without even the implied warranty of */
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/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See */
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/* the GNU General Public License for more details. */
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/* */
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/* You should have received a copy of the GNU General Public */
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/* License along with DOS-C; see the file COPYING. If not, */
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/* write to the Free Software Foundation, 675 Mass Ave, */
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/* Cambridge, MA 02139, USA. */
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/****************************************************************/
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#ifdef MAIN
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#ifdef VERSION_STRINGS
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static BYTE *process_hRcsId =
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"$Id$";
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#endif
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#endif
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/* Modes available as first argument to the spawnxx functions. */
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#define P_WAIT 0 /* child runs separately, parent waits until exit */
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#define P_NOWAIT 1 /* both concurrent -- not implemented */
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#define P_OVERLAY 2 /* child replaces parent, parent no longer exists */
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typedef struct {
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union {
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struct {
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UWORD load_seg;
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UWORD reloc;
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} _load;
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struct {
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UWORD env_seg;
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CommandTail FAR *cmd_line;
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fcb FAR *fcb_1;
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fcb FAR *fcb_2;
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BYTE FAR *stack;
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BYTE FAR *start_addr;
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} _exec;
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} ldata;
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} exec_blk;
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#define exec ldata._exec
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#define load ldata._load
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typedef struct {
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UWORD ps_exit; /* 00 CP/M-like exit poimt */
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UWORD ps_size; /* 02 memory size in paragraphs */
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BYTE ps_fill1; /* 04 single char fill */
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/* CP/M-like entry point */
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UBYTE ps_farcall; /* 05 far call opcode */
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VOID(FAR ASMCFUNC * ps_reentry) (void); /* 06 re-entry point */
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intvec ps_isv22, /* 0a terminate address */
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ps_isv23, /* 0e break address */
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ps_isv24; /* 12 critical error address */
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UWORD ps_parent; /* 16 parent psp segment */
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UBYTE ps_files[20]; /* 18 file table - 0xff is unused */
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UWORD ps_environ; /* 2c environment paragraph */
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BYTE FAR *ps_stack; /* 2e user stack pointer - int 21 */
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UWORD ps_maxfiles; /* 32 maximum open files */
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UBYTE FAR *ps_filetab; /* 34 open file table pointer */
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VOID FAR *ps_prevpsp; /* 38 previous psp pointer */
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BYTE ps_fill2[20]; /* 3c */
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UBYTE ps_unix[3]; /* 50 unix style call - 0xcd 0x21 0xcb */
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BYTE ps_fill3[9]; /* 53 */
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union {
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struct {
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fcb _ps_fcb1; /* 5c first command line argument */
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} _u1;
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struct {
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BYTE fill4[16];
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fcb _ps_fcb2; /* second command line argument */
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} _u2;
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struct {
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BYTE fill5[36];
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CommandTail _ps_cmd;
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} _u3;
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} _u;
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} psp;
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#define ps_fcb1 _u._u1._ps_fcb1
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#define ps_fcb2 _u._u2._ps_fcb2
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#define ps_cmd _u._u3._ps_cmd
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/*
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* Log: process.h,v
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*
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* Revision 1.1.1.1 1999/03/29 15:39:34 jprice
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* New version without IPL.SYS
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*
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* Revision 1.3 1999/02/01 01:40:06 jprice
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* Clean up
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*
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* Revision 1.2 1999/01/22 04:17:40 jprice
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* Formating
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*
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* Revision 1.1.1.1 1999/01/20 05:51:01 jprice
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* Imported sources
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*
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*
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* Rev 1.7 22 Jan 1998 22:13:00 patv
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* Had to change ps_prevps to VOID FAR * due to BC++ error.
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*
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* Rev 1.6 22 Jan 1998 22:05:22 patv
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* Corrected ps_prevpsp declaration.
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*
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* Rev 1.5 04 Jan 1998 23:14:16 patv
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* Changed Log for strip utility
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*
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* Rev 1.4 29 May 1996 21:25:16 patv
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* bug fixes for v0.91a
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*
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* Rev 1.3 19 Feb 1996 3:15:32 patv
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* Added NLS, int2f and config.sys processing
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*
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* Rev 1.2 01 Sep 1995 17:35:44 patv
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* First GPL release.
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*
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* Rev 1.1 30 Jul 1995 20:43:50 patv
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* Eliminated version strings in ipl
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*
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* Rev 1.0 02 Jul 1995 10:39:52 patv
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* Initial revision.
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*/
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