WebSVN – SvarDOS – Diff – /svarcom/trunk/rmodinit.h


/* This file is part of the SvarCOM project and is published under the terms
 * of the MIT license.
 *
 * Copyright (C) 2021-2022 Mateusz Viste
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 */
 
#ifndef RMODINIT_H
#define RMODINIT_H
 
#include "helpers.h" /* struct DTA definition */
 
#define FLAG_EXEC_AND_QUIT    1
#define FLAG_PERMANENT        2
#define FLAG_ECHOFLAG         4
#define FLAG_ECHO_BEFORE_BAT  8
#define FLAG_SKIP_AUTOEXEC   16
#define FLAG_STEPBYSTEP      32
 
 
/* batch context structure used to track what batch file is being executed,
 * at what line, arguments, whether or not it has a parent batch... */
struct batctx {
  char fname[130];            /* truename of batch file being processed */
  char argv[130];             /* args of the batch call (0-separated) */
  unsigned char flags;        /* used for step-by-step execution */
  unsigned long nextline;     /* offset in file of next bat line to process */
  struct batctx far *parent;  /* parent context if this batch was CALLed */
};
 
/* for context structure used to track the execution of the ongoing FOR loop */
struct forctx {
  char cmd[130];              /* copy of the original FOR command */
  struct DTA dta;             /* DTA for FindNext on current pattern */
  unsigned short curpat;      /* cmd offset of currently processed pattern */
  unsigned short nextpat;     /* cmd offset of next pattern to be processed */
  unsigned short exec;        /* cmd offset of the command to be executed */
  char varname;               /* single char of variable name */
  unsigned char dta_inited;   /* 0=requires FindFirst 1=FindNext */
};
 
struct rmod_props {
  unsigned short rmodseg;     /* segment where rmod is loaded */
  unsigned long origparent;   /* original parent (far ptr) of the shell */
  unsigned short origenvseg;  /* original environment segment */
  unsigned char flags;        /* command line parameters */
  unsigned char version;      /* used to detect mismatch between rmod and SvarCOM */
  char awaitingcmd[130];      /* command to exec next time (if any) */
  struct batctx far *bat;     /* linked list of bat contexts, if BAT ongoing */
  struct forctx far *forloop; /* a single FOR loop structure, if FOR ongoing */
};
 
#define RMOD_OFFSET_ENVSEG     0x2C   /* stored in rmod's PSP */
#define RMOD_OFFSET_INPUTBUF   (0x100 + 0x08)
#define RMOD_OFFSET_COMSPECPTR (0x100 + 0xCE)
#define RMOD_OFFSET_BOOTDRIVE  (0x100 + 0xD0)
#define RMOD_OFFSET_LEXITCODE  (0x100 + 0xDF)
#define RMOD_OFFSET_EXECPARAM  (0x100 + 0xE0)
#define RMOD_OFFSET_EXECPROG   (0x100 + 0xEE)
#define RMOD_OFFSET_STDINFILE  (0x100 + 0x16E)
#define RMOD_OFFSET_STDOUTFILE (0x100 + 0x1EE)
#define RMOD_OFFSET_STDOUTAPP  (0x100 + 0x26E)
#define RMOD_OFFSET_STDIN_DEL  (0x100 + 0x270)
#define RMOD_OFFSET_BRKHANDLER (0x100 + 0x271)
#define RMOD_OFFSET_ROUTINE    (0x100 + 0x276)
 
struct rmod_props far *rmod_install(unsigned short envsize, unsigned char *rmodcore, unsigned short rmodcore_len);
struct rmod_props far *rmod_find(unsigned short rmodcore_len);
void rmod_updatecomspecptr(unsigned short rmod_seg, unsigned short env_seg);
 
/* allocates bytes of far memory, flags it as belonging to rmod
 * the new block can be optionally flagged as 'ident' (if not null) and zero
 * out the newly allocated memory.
 * returns a far ptr to the allocated block, or NULL on error */
void far *rmod_fcalloc(unsigned short bytes, unsigned short rmod_seg, char *ident);
 
/* free memory previously allocated by rmod_fcalloc() */
void rmod_ffree(void far *ptr);
 
/* free the entire linked list of bat ctx nodes (and set its rmod ptr to NULL) */
void rmod_free_bat_llist(struct rmod_props far *rmod);
 
#endif
 

Subversion Repositories SvarDOS

(root)/svarcom/trunk/rmodinit.h – Rev 1041 → 1178

Rev 1041		Rev 1178
1	`/* This file is part of the SvarCOM project and is published under the terms`	1	`/* This file is part of the SvarCOM project and is published under the terms`
2	`* of the MIT license.`	2	`* of the MIT license.`
3	`*`	3	`*`
4	`* Copyright (C) 2021-2022 Mateusz Viste`	4	`* Copyright (C) 2021-2022 Mateusz Viste`
5	`*`	5	`*`
6	`* Permission is hereby granted, free of charge, to any person obtaining a`	6	`* Permission is hereby granted, free of charge, to any person obtaining a`
7	`* copy of this software and associated documentation files (the "Software"),`	7	`* copy of this software and associated documentation files (the "Software"),`
8	`* to deal in the Software without restriction, including without limitation`	8	`* to deal in the Software without restriction, including without limitation`
9	`* the rights to use, copy, modify, merge, publish, distribute, sublicense,`	9	`* the rights to use, copy, modify, merge, publish, distribute, sublicense,`
10	`* and/or sell copies of the Software, and to permit persons to whom the`	10	`* and/or sell copies of the Software, and to permit persons to whom the`
11	`* Software is furnished to do so, subject to the following conditions:`	11	`* Software is furnished to do so, subject to the following conditions:`
12	`*`	12	`*`
13	`* The above copyright notice and this permission notice shall be included in`	13	`* The above copyright notice and this permission notice shall be included in`
14	`* all copies or substantial portions of the Software.`	14	`* all copies or substantial portions of the Software.`
15	`*`	15	`*`
16	`* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR`	16	`* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR`
17	`* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,`	17	`* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,`
18	`* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE`	18	`* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE`
19	`* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER`	19	`* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER`
20	`* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING`	20	`* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING`
21	`* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER`	21	`* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER`
22	`* DEALINGS IN THE SOFTWARE.`	22	`* DEALINGS IN THE SOFTWARE.`
23	`*/`	23	`*/`
24		24
25	`#ifndef RMODINIT_H`	25	`#ifndef RMODINIT_H`
26	`#define RMODINIT_H`	26	`#define RMODINIT_H`
27		27
28	`#include "helpers.h" /* struct DTA definition */`	28	`#include "helpers.h" /* struct DTA definition */`
29		29
30	`#define FLAG_EXEC_AND_QUIT 1`	30	`#define FLAG_EXEC_AND_QUIT 1`
31	`#define FLAG_PERMANENT 2`	31	`#define FLAG_PERMANENT 2`
32	`#define FLAG_ECHOFLAG 4`	32	`#define FLAG_ECHOFLAG 4`
33	`#define FLAG_ECHO_BEFORE_BAT 8`	33	`#define FLAG_ECHO_BEFORE_BAT 8`
34	`#define FLAG_SKIP_AUTOEXEC 16`	34	`#define FLAG_SKIP_AUTOEXEC 16`
35	`#define FLAG_STEPBYSTEP 32`	35	`#define FLAG_STEPBYSTEP 32`
36		36
37		37
38	`/* batch context structure used to track what batch file is being executed,`	38	`/* batch context structure used to track what batch file is being executed,`
39	`* at what line, arguments, whether or not it has a parent batch... */`	39	`* at what line, arguments, whether or not it has a parent batch... */`
40	`struct batctx {`	40	`struct batctx {`
41	`char fname[130]; /* truename of batch file being processed */`	41	`char fname[130]; /* truename of batch file being processed */`
42	`char argv[130]; /* args of the batch call (0-separated) */`	42	`char argv[130]; /* args of the batch call (0-separated) */`
43	`unsigned char flags; /* used for step-by-step execution */`	43	`unsigned char flags; /* used for step-by-step execution */`
44	`unsigned long nextline; /* offset in file of next bat line to process */`	44	`unsigned long nextline; /* offset in file of next bat line to process */`
45	`struct batctx far parent; / parent context if this batch was CALLed */`	45	`struct batctx far parent; / parent context if this batch was CALLed */`
46	`};`	46	`};`
47		47
48	`/* for context structure used to track the execution of the ongoing FOR loop */`	48	`/* for context structure used to track the execution of the ongoing FOR loop */`
49	`struct forctx {`	49	`struct forctx {`
50	`char cmd[130]; /* copy of the original FOR command */`	50	`char cmd[130]; /* copy of the original FOR command */`
51	`struct DTA dta; /* DTA for FindNext on current pattern */`	51	`struct DTA dta; /* DTA for FindNext on current pattern */`
52	`unsigned short curpat; /* cmd offset of currently processed pattern */`	52	`unsigned short curpat; /* cmd offset of currently processed pattern */`
53	`unsigned short nextpat; /* cmd offset of next pattern to be processed */`	53	`unsigned short nextpat; /* cmd offset of next pattern to be processed */`
54	`unsigned short exec; /* cmd offset of the command to be executed */`	54	`unsigned short exec; /* cmd offset of the command to be executed */`
55	`char varname; /* single char of variable name */`	55	`char varname; /* single char of variable name */`
56	`unsigned char dta_inited; /* 0=requires FindFirst 1=FindNext */`	56	`unsigned char dta_inited; /* 0=requires FindFirst 1=FindNext */`
57	`};`	57	`};`
58		58
59	`struct rmod_props {`	59	`struct rmod_props {`
60	`unsigned short rmodseg; /* segment where rmod is loaded */`	60	`unsigned short rmodseg; /* segment where rmod is loaded */`
61	`unsigned long origparent; /* original parent (far ptr) of the shell */`	61	`unsigned long origparent; /* original parent (far ptr) of the shell */`
62	`unsigned short origenvseg; /* original environment segment */`	62	`unsigned short origenvseg; /* original environment segment */`
63	`unsigned char flags; /* command line parameters */`	63	`unsigned char flags; /* command line parameters */`
64	`unsigned char version; /* used to detect mismatch between rmod and SvarCOM */`	64	`unsigned char version; /* used to detect mismatch between rmod and SvarCOM */`
65	`char awaitingcmd[130]; /* command to exec next time (if any) */`	65	`char awaitingcmd[130]; /* command to exec next time (if any) */`
66	`struct batctx far bat; / linked list of bat contexts, if BAT ongoing */`	66	`struct batctx far bat; / linked list of bat contexts, if BAT ongoing */`
67	`struct forctx far forloop; / a single FOR loop structure, if FOR ongoing */`	67	`struct forctx far forloop; / a single FOR loop structure, if FOR ongoing */`
68	`};`	68	`};`
69		69
70	`#define RMOD_OFFSET_ENVSEG 0x2C /* stored in rmod's PSP */`	70	`#define RMOD_OFFSET_ENVSEG 0x2C /* stored in rmod's PSP */`
71	`#define RMOD_OFFSET_INPUTBUF (0x100 + 0x08)`	71	`#define RMOD_OFFSET_INPUTBUF (0x100 + 0x08)`
72	`#define RMOD_OFFSET_COMSPECPTR (0x100 + 0xCE)`	72	`#define RMOD_OFFSET_COMSPECPTR (0x100 + 0xCE)`
73	`#define RMOD_OFFSET_BOOTDRIVE (0x100 + 0xD0)`	73	`#define RMOD_OFFSET_BOOTDRIVE (0x100 + 0xD0)`
74	`#define RMOD_OFFSET_LEXITCODE (0x100 + 0xDF)`	74	`#define RMOD_OFFSET_LEXITCODE (0x100 + 0xDF)`
75	`#define RMOD_OFFSET_EXECPARAM (0x100 + 0xE0)`	75	`#define RMOD_OFFSET_EXECPARAM (0x100 + 0xE0)`
76	`#define RMOD_OFFSET_EXECPROG (0x100 + 0xEE)`	76	`#define RMOD_OFFSET_EXECPROG (0x100 + 0xEE)`
77	`#define RMOD_OFFSET_STDINFILE (0x100 + 0x16E)`	77	`#define RMOD_OFFSET_STDINFILE (0x100 + 0x16E)`
78	`#define RMOD_OFFSET_STDOUTFILE (0x100 + 0x1EE)`	78	`#define RMOD_OFFSET_STDOUTFILE (0x100 + 0x1EE)`
79	`#define RMOD_OFFSET_STDOUTAPP (0x100 + 0x26E)`	79	`#define RMOD_OFFSET_STDOUTAPP (0x100 + 0x26E)`
80	`#define RMOD_OFFSET_STDIN_DEL (0x100 + 0x270)`	80	`#define RMOD_OFFSET_STDIN_DEL (0x100 + 0x270)`
81	`#define RMOD_OFFSET_BRKHANDLER (0x100 + 0x271)`	81	`#define RMOD_OFFSET_BRKHANDLER (0x100 + 0x271)`
82	`#define RMOD_OFFSET_ROUTINE (0x100 + 0x273)`	82	`#define RMOD_OFFSET_ROUTINE (0x100 + 0x276)`
83		83
84	`struct rmod_props far rmod_install(unsigned short envsize, unsigned char rmodcore, unsigned short rmodcore_len);`	84	`struct rmod_props far rmod_install(unsigned short envsize, unsigned char rmodcore, unsigned short rmodcore_len);`
85	`struct rmod_props far *rmod_find(unsigned short rmodcore_len);`	85	`struct rmod_props far *rmod_find(unsigned short rmodcore_len);`
86	`void rmod_updatecomspecptr(unsigned short rmod_seg, unsigned short env_seg);`	86	`void rmod_updatecomspecptr(unsigned short rmod_seg, unsigned short env_seg);`
87		87
88	`/* allocates bytes of far memory, flags it as belonging to rmod`	88	`/* allocates bytes of far memory, flags it as belonging to rmod`
89	`* the new block can be optionally flagged as 'ident' (if not null) and zero`	89	`* the new block can be optionally flagged as 'ident' (if not null) and zero`
90	`* out the newly allocated memory.`	90	`* out the newly allocated memory.`
91	`* returns a far ptr to the allocated block, or NULL on error */`	91	`* returns a far ptr to the allocated block, or NULL on error */`
92	`void far rmod_fcalloc(unsigned short bytes, unsigned short rmod_seg, char ident);`	92	`void far rmod_fcalloc(unsigned short bytes, unsigned short rmod_seg, char ident);`
93		93
94	`/* free memory previously allocated by rmod_fcalloc() */`	94	`/* free memory previously allocated by rmod_fcalloc() */`
95	`void rmod_ffree(void far *ptr);`	95	`void rmod_ffree(void far *ptr);`
96		96
97	`/* free the entire linked list of bat ctx nodes (and set its rmod ptr to NULL) */`	97	`/* free the entire linked list of bat ctx nodes (and set its rmod ptr to NULL) */`
98	`void rmod_free_bat_llist(struct rmod_props far *rmod);`	98	`void rmod_free_bat_llist(struct rmod_props far *rmod);`
99		99
100	`#endif`	100	`#endif`
101		101