patch 9.0.1418: the included xdiff code is a bit outdated
Problem: The included xdiff code is a bit outdated.
Solution: Sync with the latest git xdiff code. (Yee Cheng Chin,
closes #12181)
diff --git a/src/xdiff/xprepare.c b/src/xdiff/xprepare.c
index abeb8fb..c84549f 100644
--- a/src/xdiff/xprepare.c
+++ b/src/xdiff/xprepare.c
@@ -78,15 +78,14 @@
return -1;
}
- if (!(cf->rchash = (xdlclass_t **) xdl_malloc(cf->hsize * sizeof(xdlclass_t *)))) {
+ if (!XDL_CALLOC_ARRAY(cf->rchash, cf->hsize)) {
xdl_cha_free(&cf->ncha);
return -1;
}
- memset(cf->rchash, 0, cf->hsize * sizeof(xdlclass_t *));
cf->alloc = size;
- if (!(cf->rcrecs = (xdlclass_t **) xdl_malloc(cf->alloc * sizeof(xdlclass_t *)))) {
+ if (!XDL_ALLOC_ARRAY(cf->rcrecs, cf->alloc)) {
xdl_free(cf->rchash);
xdl_cha_free(&cf->ncha);
@@ -112,7 +111,6 @@
long hi;
char const *line;
xdlclass_t *rcrec;
- xdlclass_t **rcrecs;
line = rec->ptr;
hi = (long) XDL_HASHLONG(rec->ha, cf->hbits);
@@ -128,14 +126,8 @@
return -1;
}
rcrec->idx = cf->count++;
- if (cf->count > cf->alloc) {
- cf->alloc *= 2;
- if (!(rcrecs = (xdlclass_t **) xdl_realloc(cf->rcrecs, cf->alloc * sizeof(xdlclass_t *)))) {
-
+ if (XDL_ALLOC_GROW(cf->rcrecs, cf->count, cf->alloc))
return -1;
- }
- cf->rcrecs = rcrecs;
- }
cf->rcrecs[rcrec->idx] = rcrec;
rcrec->line = line;
rcrec->size = rec->size;
@@ -164,7 +156,7 @@
unsigned long hav;
char const *blk, *cur, *top, *prev;
xrecord_t *crec;
- xrecord_t **recs, **rrecs;
+ xrecord_t **recs;
xrecord_t **rhash;
unsigned long *ha;
char *rchg;
@@ -178,51 +170,42 @@
if (xdl_cha_init(&xdf->rcha, sizeof(xrecord_t), narec / 4 + 1) < 0)
goto abort;
- if (!(recs = (xrecord_t **) xdl_malloc(narec * sizeof(xrecord_t *))))
+ if (!XDL_ALLOC_ARRAY(recs, narec))
goto abort;
- if (XDF_DIFF_ALG(xpp->flags) == XDF_HISTOGRAM_DIFF)
- hbits = hsize = 0;
- else {
- hbits = xdl_hashbits((unsigned int) narec);
- hsize = 1 << hbits;
- if (!(rhash = (xrecord_t **) xdl_malloc(hsize * sizeof(xrecord_t *))))
- goto abort;
- memset(rhash, 0, hsize * sizeof(xrecord_t *));
- }
+ hbits = xdl_hashbits((unsigned int) narec);
+ hsize = 1 << hbits;
+ if (!XDL_CALLOC_ARRAY(rhash, hsize))
+ goto abort;
nrec = 0;
- if ((cur = blk = xdl_mmfile_first(mf, &bsize)) != NULL) {
+ if ((cur = blk = xdl_mmfile_first(mf, &bsize))) {
for (top = blk + bsize; cur < top; ) {
prev = cur;
hav = xdl_hash_record(&cur, top, xpp->flags);
- if (nrec >= narec) {
- narec *= 2;
- if (!(rrecs = (xrecord_t **) xdl_realloc(recs, narec * sizeof(xrecord_t *))))
- goto abort;
- recs = rrecs;
- }
+ if (XDL_ALLOC_GROW(recs, nrec + 1, narec))
+ goto abort;
if (!(crec = xdl_cha_alloc(&xdf->rcha)))
goto abort;
crec->ptr = prev;
crec->size = (long) (cur - prev);
crec->ha = hav;
recs[nrec++] = crec;
-
- if ((XDF_DIFF_ALG(xpp->flags) != XDF_HISTOGRAM_DIFF) &&
- xdl_classify_record(pass, cf, rhash, hbits, crec) < 0)
+ if (xdl_classify_record(pass, cf, rhash, hbits, crec) < 0)
goto abort;
}
}
- if (!(rchg = (char *) xdl_malloc((nrec + 2) * sizeof(char))))
+ if (!XDL_CALLOC_ARRAY(rchg, nrec + 2))
goto abort;
- memset(rchg, 0, (nrec + 2) * sizeof(char));
- if (!(rindex = (long *) xdl_malloc((nrec + 1) * sizeof(long))))
- goto abort;
- if (!(ha = (unsigned long *) xdl_malloc((nrec + 1) * sizeof(unsigned long))))
- goto abort;
+ if ((XDF_DIFF_ALG(xpp->flags) != XDF_PATIENCE_DIFF) &&
+ (XDF_DIFF_ALG(xpp->flags) != XDF_HISTOGRAM_DIFF)) {
+ if (!XDL_ALLOC_ARRAY(rindex, nrec + 1))
+ goto abort;
+ if (!XDL_ALLOC_ARRAY(ha, nrec + 1))
+ goto abort;
+ }
xdf->nrec = nrec;
xdf->recs = recs;
@@ -279,8 +262,7 @@
enl1 = xdl_guess_lines(mf1, sample) + 1;
enl2 = xdl_guess_lines(mf2, sample) + 1;
- if (XDF_DIFF_ALG(xpp->flags) != XDF_HISTOGRAM_DIFF &&
- xdl_init_classifier(&cf, enl1 + enl2 + 1, xpp->flags) < 0)
+ if (xdl_init_classifier(&cf, enl1 + enl2 + 1, xpp->flags) < 0)
return -1;
if (xdl_prepare_ctx(1, mf1, enl1, xpp, &cf, &xe->xdf1) < 0) {
@@ -305,8 +287,7 @@
return -1;
}
- if (XDF_DIFF_ALG(xpp->flags) != XDF_HISTOGRAM_DIFF)
- xdl_free_classifier(&cf);
+ xdl_free_classifier(&cf);
return 0;
}
@@ -388,11 +369,8 @@
xdlclass_t *rcrec;
char *dis, *dis1, *dis2;
- if (!(dis = (char *) xdl_malloc(xdf1->nrec + xdf2->nrec + 2))) {
-
+ if (!XDL_CALLOC_ARRAY(dis, xdf1->nrec + xdf2->nrec + 2))
return -1;
- }
- memset(dis, 0, xdf1->nrec + xdf2->nrec + 2);
dis1 = dis;
dis2 = dis1 + xdf1->nrec + 1;