158 lines
2.9 KiB
C
158 lines
2.9 KiB
C
/*
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Warnings.
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*/
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/* $Id$ */
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#include <stdio.h>
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#include "logging.h"
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#include "global.h"
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#include "log.h"
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#include "alloc.h"
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#include "warn.h"
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#include "linfil.h"
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extern FILE *mess_fp; /* from io.c */
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extern char *trap2text(); /* from trap.c */
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/******** The warnings ********/
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struct warn_msg {
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char *wm_text;
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int wm_nr;
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};
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#define WMASK 0x5555 /* powers of 4 */
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PRIVATE struct warn_msg warn_msg[] = {
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#include "warn_msg" /* generated from $(EM)/doc/int */
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{0, 0} /* sentinel */
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};
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PRIVATE char *warn_text[WMSG+1];
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init_wmsg()
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{
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register int i;
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register struct warn_msg *wmsg;
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for (i = 0; i <= WMSG; i++) {
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warn_text[i] = "*** Unknown warning (internal error) ***";
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}
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for (wmsg = &warn_msg[0]; wmsg->wm_nr; wmsg++) {
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warn_text[wmsg->wm_nr] = wmsg->wm_text;
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}
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}
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/******** The warning counters ********/
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struct warn_cnt {
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struct warn_cnt *next;
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ptr wc_fil; /* file name pointer */
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long wc_lin; /* line number */
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long wc_cnt; /* the counter */
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};
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PRIVATE struct warn_cnt *warn_cnt[WMSG];
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PRIVATE char warnmask[WMSG];
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PRIVATE long count_wrn(nr)
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int nr;
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{ /* returns the occurrence counter for the warning with number
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nr; keeps track of the warnings, sorted by warning number,
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file name and line number.
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*/
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register struct warn_cnt **warn_hook = &warn_cnt[nr];
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register struct warn_cnt *wrn;
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while (wrn = *warn_hook) {
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if (wrn->wc_fil == FIL && wrn->wc_lin == LIN) {
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return ++wrn->wc_cnt;
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}
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warn_hook = &wrn->next;
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}
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wrn = (struct warn_cnt *)
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Malloc((size) sizeof (struct warn_cnt), (char *)0);
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if (!wrn) {
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/* no problem */
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return 1;
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}
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*warn_hook = wrn;
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wrn->next = 0;
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wrn->wc_fil = FIL;
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wrn->wc_lin = LIN;
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wrn->wc_cnt = 1;
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return 1;
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}
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/******** The handling ********/
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#define wmask_on(i) (warnmask[i])
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PRIVATE int latest_warning_printed; /* set if ... */
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/*ARGSUSED*/
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do_warn(nr, L, F)
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int nr;
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int L;
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char *F;
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{
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latest_warning_printed = 0;
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if (nr < WMSG) {
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if (!wmask_on(nr)) {
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register long wrn_cnt = count_wrn(nr);
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register char *wmsgtxt = warn_text[nr];
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LOG(("@w1 warning: %s [%s: %d]", wmsgtxt, F, L));
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if ( /* wrn_cnt is a power of two */
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!((wrn_cnt-1) & wrn_cnt)
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&& /* and it is the right power of two */
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(WMASK & wrn_cnt)
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) {
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fprintf(mess_fp,
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"(Warning %d, #%ld): %s at %s\n",
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nr, wrn_cnt, wmsgtxt, position());
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latest_warning_printed = 1;
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}
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}
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}
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else {
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/* actually a trap number */
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nr -= WMSG;
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fprintf(mess_fp, "(Warning): Trap occurred - %s at %s\n",
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trap2text(nr), position());
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}
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}
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#ifdef LOGGING
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warningcont(nr)
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int nr;
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{
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/* continued warning */
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if (latest_warning_printed) {
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if (!wmask_on(nr)) {
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register char *wmsgtxt = warn_text[nr];
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LOG(("@w1 warning cont.: %s", wmsgtxt));
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fprintf(mess_fp,
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"(Warning %d, cont.): %s at %s\n",
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nr, wmsgtxt, position());
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}
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}
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}
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#endif /* LOGGING */
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set_wmask(i)
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int i;
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{
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if (i < WMSG) {
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warnmask[i] = 1;
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}
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}
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