source: trunk/minix/commands/elle/eediag.c@ 12

Last change on this file since 12 was 9, checked in by Mattia Monga, 14 years ago

Minix 3.1.2a
File size: 7.8 KB
Line 
1/* ELLE - Copyright 1982, 1985, 1987 by Ken Harrenstien, SRI International
2 * This software is quasi-public; it may be used freely with
3 * like software, but may NOT be sold or made part of licensed
4 * products without permission of the author.
5 */
6/* EEDIAG - Error diagnostics and testing routines
7 */
8
9#include "elle.h"
10
11#if FX_DEBUG
12
13/* EFUN: "Debug Mode" */
14/* With no arg, toggles self-checking on and off.
15 * With arg of 4 (^U), enters special debug/diagnostics mode.
16 */
17
18f_debug(ch)
19int ch;
20{ extern int (*vfy_vec)(); /* In E_MAIN.C */
21 char *vfy_data();
22
23 if(ch < 0) /* Internal call? */
24 { dbg_diag();
25 return;
26 }
27 if(exp == 4)
28 { askerr();
29 return;
30 }
31 if(vfy_vec) vfy_vec = 0; /* Toggle current value */
32 else vfy_vec = (int (*)())vfy_data;
33 say(vfy_vec ? "Self-checking on" : "Self-checking off");
34}
35
36
37char *
38vfy_data(flag) /* Flag = 0 for quiet check */
39int flag;
40{
41 register char *res, *mess;
42 char *sbe_mvfy(), *sbe_sbvfy(), *sbe_svfy();
43
44 if(res = sbe_mvfy(0)) mess = "Mem mgt";
45 else if(res = sbe_sbvfy(cur_buf,0)) mess = "SBBUF";
46 else if(res = sbe_svfy(0)) mess = "SD list";
47 else return(0); /* Success */
48
49 if(flag)
50 { int ostate = clean_exit();
51 printf("\n%s error: %s !!!\n",mess,res);
52 askerr();
53 if(ostate > 0) set_tty();
54 }
55 return(res); /* Error seen */
56}
57
58
59extern char *asklin();
60extern int sbx_nfl,sbm_nfl;
61
62char diaghelp[] = "\
63Q - Quit diag mode\n\
64! - Goto subshell\n\
65V - Verify Mem & SD lists\n\
66MF - Mem Freelist\n\
67M - Mem list\n\
68B - Current buffer SB\n\
69DF - SD Freelist\n\
70D - SDs in use\n\
71DL - SD Logical lists\n\
72DP - SD Physical lists\n\
73C n - Compact; 0-7=sbx_comp(n), 8=SM freelist, 9=SD freelist.\n\
74W - Window printout\n\
75X n - Xercise randomly (GC every n)\n\
76Z n - like X but with notes\n";
77
78dbg_diag()
79{ register char *cp;
80 register int c;
81 char linbuf[100];
82 char *sbe_mfl();
83 char *sbe_sfl();
84 char *sbe_sbs();
85 char *sbe_sdlist();
86
87 for(;;)
88 { printf("D>");
89 asklin(cp = linbuf); /* Read a line of input */
90 switch(upcase(*cp++))
91 {
92 case '?':
93 writez(1,diaghelp); /* Too long for printf */
94 continue;
95 case '!':
96 f_pshinf(); /* Invoke inferior subshell */
97 clean_exit(); /* Restore normal modes */
98 continue;
99 case 'Q': /* Quit */
100 return;
101
102 case 'B': /* Print current SBBUF */
103 sbe_sbs(cur_buf,1);
104 continue;
105
106 case 'C': /* C n - Compact */
107 c = atoi(&linbuf[1]);
108 if(c == 8)
109 sbm_ngc(); /* GC the SM nodes */
110#if 0 /* This doesn't work, dangerous to invoke. */
111 else if(c == 9)
112 sbm_xngc(&sbx_nfl,sizeof(struct sdblk),
113 SM_DNODS);
114#endif
115 else
116 sbx_comp(512,c);
117 continue;
118
119 case 'D': /* Print all SD blocks in mem order */
120 switch(upcase(*cp))
121 {
122 case 0: /* D - all SDs in mem order */
123 sbe_sds();
124 continue;
125 case 'F': /* DF - SD freelist */
126 sbe_sfl(1);
127 continue;
128 case 'L': /* DL - SD logical list */
129 sbe_sdlist(1,0);
130 continue;
131 case 'P': /* DP - SD physical list */
132 sbe_sdlist(1,1);
133 continue;
134 }
135 break; /* failure */
136
137 case 'M':
138 switch(upcase(*cp))
139 {
140 case 0: /* M - all mem alloc info */
141 sbe_mem();
142 continue;
143 case 'F': /* MF - mem freelist */
144 sbe_mfl(1);
145 continue;
146 }
147 break; /* failure */
148
149 case 'V': /* Verify */
150 if(cp = vfy_data(0))
151 printf(" Failed: %s\n",cp);
152 else printf(" OK\n");
153 continue;
154 case 'W': /* Print out current window */
155 db_prwind(cur_win);
156 continue;
157 case 'X': /* Xercise */
158 c = atoi(&linbuf[1]);
159 vfy_exer(0, c ? c : 100);
160 continue;
161 case 'Z': /* Zercise */
162 c = atoi(&linbuf[1]);
163 vfy_exer(1, c ? c : 100);
164 continue;
165
166 } /* End of switch */
167
168 printf("?? Type ? for help\n");
169 } /* Loop forever */
170}
171
172
173
174/* VFY_EXER - a "random" editor exerciser. It creates a buffer,
175 * fills it with some patterned stuff, and then edits it
176 * pseudo-randomly in ways which retain the basic pattern.
177 * Frequent GC's and self-checks are done, and execution
178 * halted either when an error is seen or when typein is detected.
179 */
180char *xer_strs [] = {
181 "throne", "too", "sky", "fore", "fingers", "sex", "stone",
182 "010", "nazgul", "base"
183};
184
185
186vfy_exer(pf, gcfrq)
187int pf; /* Nonzero to print notes as we go */
188int gcfrq; /* Frequency of GC invocation (# passes per GC) */
189{ register int i, k, c;
190 long npass;
191 char *res, linbuf[100];
192 chroff lbeg, lend;
193 struct buffer *bfp, *make_buf();
194
195 /* Clean out kill buffer first */
196 for(i = 0; i < KILL_LEN; ++i)
197 kill_push((SBSTR *)0);
198
199 bfp = make_buf("**EXORCISE**");
200 chg_buf(bfp);
201 i = 2000;
202 e_gobol();
203 do {
204 ed_sins("Line ");
205 ed_sins(xer_strs[i%10]);
206 e_putc(LF);
207 } while(--i);
208 if(pf) printf("Bufflen: %ld\n", e_blen());
209
210 /* Buffer now has stuff in it, start hacking. */
211 npass = 0;
212 srand(1); /* Start random seed */
213 for(;;)
214 { if(tinwait() && (*asklin(linbuf)))
215 { printf("Typein stop.\n");
216 break;
217 }
218 ++npass;
219 printf(" Pass %ld",npass);
220 if(npass%gcfrq == 0) /* Time to do a GC? */
221 {
222 i = rand(); /* Level between 0-4 */
223 i = (i < 0 ? -i : i) % 5;
224 printf(" - GC lev %d\n", i);
225 sbx_comp(512,i);
226 goto xerchk;
227 }
228
229 k = (i = rand())%1024;
230 if (i&020000) k = -k;
231 e_igoff(k); /* Move randomly */
232 e_gobol(); /* Get stuff to flush */
233 lbeg = e_dot();
234 k = (i = rand())%64;
235 if(i&010000) k = -k;
236 e_igoff(k);
237 lend = e_nldot();
238 if(pf) printf(" Kill %ld/ %d;", lbeg, k);
239 ed_kill(lbeg, lend);
240 if(res = vfy_data(0))
241 { printf("XERR after kill: %s\n",res);
242 break;
243 }
244 k = (i = rand())%2048;
245 if(i&04000) k = -k;
246 e_igoff(k);
247 e_gobol();
248 e_setcur();
249 if(pf) printf(" Yank %ld;", e_dot());
250 f_unkill(); /* Yank back */
251 if(res = vfy_data(0))
252 { printf("XERR after yank: %s\n",res);
253 break;
254 }
255 last_cmd = YANKCMD;
256 for(i = rand()%4; i >= 0; --i)
257 { if(pf) printf(" Pop;");
258 f_unkpop(); /* Do meta-Y */
259 if(res = vfy_data(0))
260 { printf("XERR after pop: %s\n",res);
261 goto out;
262 }
263 }
264 if(rand()&07) /* Slowly add stuff */
265 { if(pf) printf(" Add");
266 ed_sins("Line ");
267 ed_sins(xer_strs[rand()%10]);
268 e_putc(LF);
269 if(res = vfy_data(0))
270 { printf("XERR after ins: %s\n",res);
271 break;
272 }
273 }
274 printf("\n");
275
276 /* Okay, done with this pass edits, run through the
277 * file to ensure pattern is still there
278 */
279 xerchk: e_gobob();
280 while((c = e_getc()) != EOF)
281 if(c == LF && (c = e_getc()) != EOF)
282 { if( c != 'L'
283 || e_getc() != 'i'
284 || e_getc() != 'n'
285 || e_getc() != 'e'
286 || e_getc() != ' ')
287 { printf("XERR in pattern!\n");
288 goto out;
289 }
290 }
291 }
292 /* User typein or error, stop. */
293out: e_setcur();
294 redp(RD_SCREEN);
295 printf("Loop count = %ld\n",npass);
296}
297
298
299/* DB_PRWIND(win) - Print out stuff about given window
300 */
301db_prwind(w)
302register struct window *w;
303{ register struct scr_line *s;
304 register int i;
305 char tstr[MAXLINE+MAXCHAR];
306 char *db_scflgs();
307
308 printf("cur_dot/ %ld cur_buf/ %o cur_win/ %o\n",
309 cur_dot, cur_buf, cur_win);
310
311 printf("Window %o:\n", w);
312 printf(" next/ %o\n", w->w_next);
313 printf(" buf / %o\n", w->w_buf);
314 printf(" redp/ %o\n", w->w_redp);
315
316 printf(" topldot/ %ld\n", w->w_topldot);
317 printf(" dot / %ld\n", w->w_dot);
318 printf(" bmod/ %ld\n", w->w_bmod);
319 printf(" emod/ %ld\n", w->w_emod);
320 printf(" oldz/ %ld\n", w->w_oldz);
321
322 printf(" pos / %d\n", w->w_pos);
323 printf(" ht / %d\n", w->w_ht);
324 printf("\
325# Flags Boff Len ! Cols Line\n");
326 for(i = w->w_pos; i < w->w_pos + w->w_ht; ++i)
327 { s = scr[i];
328 printf("%2d %-5.5s %6ld %3d %1d %4d ",
329 i, db_scflgs(s->sl_flg), s->sl_boff, s->sl_len,
330 s->sl_cont, s->sl_col);
331 strncpy(tstr, s->sl_line, MAXLINE);
332 tstr[s->sl_col] = 0;
333 printf("%-40.40s\n", tstr);
334 if(s->sl_flg&SL_MOD)
335 { printf("%26d ", s->sl_ncol);
336 strncpy(tstr, s->sl_nlin, MAXLINE);
337 tstr[s->sl_ncol] = 0;
338 printf("%-40.40s\n", tstr);
339 }
340 }
341}
342
343char *
344db_scflgs(flags)
345int flags;
346{ static char retstr[10];
347 register char *cp;
348
349 cp = retstr;
350 if(flags&SL_MOD) *cp++ = 'M';
351 if(flags&SL_EOL) *cp++ = 'E';
352 *cp = 0;
353 return(retstr);
354}
355
356#endif /*FX_DEBUG*/
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