perl-BSSolv/0001-Implement-genmetaalgo-1.patch
openeuler-basic 72d1a1080d init package
2020-03-06 16:40:42 +08:00

172 lines
4.5 KiB
Diff

From 74b81a4a092a3c31c3ad2506a2311f461cd7b4ae Mon Sep 17 00:00:00 2001
From: Michael Schroeder <mls@suse.de>
Date: Tue, 17 Apr 2018 17:20:13 +0200
Subject: [PATCH] Implement genmetaalgo 1
Add setgenmetaalgo method to select the desired algorithm
---
BSSolv.xs | 70 ++++++++++++++++++++++++++++++++++++++-----------------
1 file changed, 49 insertions(+), 21 deletions(-)
diff --git a/BSSolv.xs b/BSSolv.xs
index 726b4ff..dcee8e6 100644
--- a/BSSolv.xs
+++ b/BSSolv.xs
@@ -128,6 +128,8 @@ static Id expander_directdepsend;
static Id buildservice_dodcookie;
static Id buildservice_annotation;
+static int genmetaalgo;
+
/* make sure bit n is usable */
#define MAPEXP(m, n) ((m)->size < (((n) + 8) >> 3) ? map_grow(m, n + 256) : 0)
@@ -2743,10 +2745,10 @@ create_considered(Pool *pool, Repo *repoonly, Map *considered, int unorderedrepo
}
struct metaline {
- char *l;
- int lastoff;
- int nslash;
- int killed;
+ char *l; /* pointer to line */
+ int lastoff; /* line offset of last path element */
+ int nslash; /* number of slashes */
+ int killed; /* 1: line has been killed. 2: because of a cycle package */
};
static int metacmp(const void *ap, const void *bp)
@@ -5243,6 +5245,19 @@ depsort(HV *deps, SV *mapp, SV *cycp, ...)
solv_free(names);
}
+int
+setgenmetaalgo(int algo)
+ CODE:
+ if (algo < 0)
+ algo = 1;
+ if (algo > 1)
+ croak("BSSolv::setgenmetaalgo: unsupported algo %d\n", algo);
+ genmetaalgo = algo;
+ RETVAL = algo;
+ OUTPUT:
+ RETVAL
+
+
void
gen_meta(AV *subp, ...)
PPCODE:
@@ -5328,7 +5343,7 @@ gen_meta(AV *subp, ...)
}
if (cycle)
{
- lp->killed = 1;
+ lp->killed = 1; /* killed because line includes a subpackage */
if (cycle > 1) /* ignore self cycles */
queue_push(&cycles, i);
}
@@ -5344,9 +5359,9 @@ gen_meta(AV *subp, ...)
char *cycledata = 0;
int cycledatalen = 0;
+ /* create hash of cycle packages */
cycledata = solv_extend(cycledata, cycledatalen, 1, 1, 255);
- cycledata[0] = 0;
- cycledatalen += 1;
+ cycledata[cycledatalen++] = 0;
hm = mkmask(cycles.count);
ht = solv_calloc(hm + 1, sizeof(*ht));
for (i = 0; i < cycles.count; i++)
@@ -5364,18 +5379,23 @@ gen_meta(AV *subp, ...)
break;
h = HASHCHAIN_NEXT(h, hh, hm);
}
- if (id)
- continue;
- cycledata = solv_extend(cycledata, cycledatalen, strlen(s) + 1, 1, 255);
- ht[h] = cycledatalen;
- strcpy(cycledata + cycledatalen, s);
- cycledatalen += strlen(s) + 1;
+ if (!id)
+ {
+ int l = strlen(s);
+ cycledata = solv_extend(cycledata, cycledatalen, l + 1, 1, 255);
+ ht[h] = cycledatalen; /* point to name */
+ strcpy(cycledata + cycledatalen, s);
+ cycledatalen += l + 1;
+ }
if (se)
*se = '/';
}
+
for (i = 0, lp = lines; i < nlines; i++, lp++)
{
- if (lp->killed || !lp->nslash)
+ if (!lp->nslash)
+ continue;
+ if (lp->killed && genmetaalgo == 0)
continue;
lo = strchr(lp->l + 34, '/') + 1;
for (s2 = lo; *s2; s2++)
@@ -5393,12 +5413,12 @@ gen_meta(AV *subp, ...)
*s2 = '/';
if (id)
{
- lp->killed = 1;
+ lp->killed = 2; /* killed because it containes a cycle package */
break;
}
lo = s2 + 1;
}
- if (lp->killed)
+ if (lp->killed == 2)
continue;
h = strhash(lo) & hm;
hh = HASHCHAIN_START;
@@ -5409,14 +5429,12 @@ gen_meta(AV *subp, ...)
h = HASHCHAIN_NEXT(h, hh, hm);
}
if (id)
- {
- lp->killed = 1;
- }
+ lp->killed = 2; /* killed because it containes a cycle package */
}
solv_free(ht);
cycledata = solv_free(cycledata);
- queue_free(&cycles);
}
+ queue_free(&cycles);
/* cycles are pruned, now sort array */
if (nlines > 1)
@@ -5427,7 +5445,10 @@ gen_meta(AV *subp, ...)
for (i = 0, lp = lines; i < nlines; i++, lp++)
{
if (lp->killed)
- continue;
+ {
+ if (genmetaalgo == 0 || lp->killed != 2)
+ continue;
+ }
s = lp->l;
h = strnhash(s, 10);
h = strhash_cont(s + lp->lastoff, h) & hm;
@@ -5439,6 +5460,13 @@ gen_meta(AV *subp, ...)
break;
h = HASHCHAIN_NEXT(h, hh, hm);
}
+ if (id && genmetaalgo == 1 && lp->killed == 2)
+ {
+ /* also kill old line of same level */
+ struct metaline *lp2 = lines + (id - 1);
+ if (!lp2->killed && lp2->nslash == lp->nslash)
+ lp2->killed = 1;
+ }
if (id)
lp->killed = 1;
else
--
2.17.0