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xbps_get_pkg_fulldeptree(): fix all known bugs and make it 50x faster.

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faster: use a hash table with pkg names on the transaction dict,
 the process of collecting and sorting is now 50x faster or
 even more (kde5).

bugs: this now detects cyclic deps and returns with an appropropiate
 return value: ELOOP and ENOENT in xbps-query(1) --fulldeptree.
 Ping me if you need more details :-)

Close https://github.com/void-linux/xbps/issues/16
Close https://github.com/void-linux/xbps/issues/5
This commit is contained in:
Juan RP 2019-04-19 14:50:23 +02:00 committed by Duncaen
parent 5243eab739
commit 580a5ba29b
3 changed files with 127 additions and 127 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

242
lib/package_fulldeptree.c
View File

@ -1,5 +1,5 @@
/*-
* Copyright (c) 2014-2015 Juan Romero Pardines.
* Copyright (c) 2014-2019 Juan Romero Pardines.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -31,58 +31,132 @@
#include "xbps_api_impl.h"
struct pkgdep {
SLIST_ENTRY(pkgdep) pkgdep_entries;
const char *pkg;
struct item;
struct depn {
struct depn *dnext;
struct item *item;
};
struct item {
struct item *hnext;
struct item *bnext;
struct depn *dbase;
char *pkgn;
const char *pkgver;
xbps_array_t rdeps;
};
static SLIST_HEAD(pkgdep_head, pkgdep) pkgdep_list =
SLIST_HEAD_INITIALIZER(pkgdep_list);
#define ITHSIZE 1024
#define ITHMASK (ITHSIZE - 1)
static xbps_dictionary_t pkgdep_pvmap;
static struct item *ItemHash[ITHSIZE];
static xbps_array_t result;
static int
collect_rdeps(struct xbps_handle *xhp, xbps_dictionary_t pkgd, bool rpool)
itemhash(const char *pkgn)
{
xbps_array_t rdeps, currdeps, provides = NULL;
struct pkgdep *pd;
const char *pkgver;
int hv = 0xA1B5F342;
int i;
assert(pkgn);
for (i = 0; pkgn[i]; ++i)
hv = (hv << 5) ^ (hv >> 23) ^ pkgn[i];
return hv & ITHMASK;
}
static struct item *
lookupItem(const char *pkgn)
{
struct item *item;
assert(pkgn);
for (item = ItemHash[itemhash(pkgn)]; item; item = item->hnext) {
if (strcmp(pkgn, item->pkgn) == 0)
return item;
}
return NULL;
}
static struct item *
addItem(xbps_array_t rdeps, const char *pkgn)
{
struct item **itemp;
struct item *item = calloc(sizeof(*item), 1);
assert(pkgn);
assert(item);
itemp = &ItemHash[itemhash(pkgn)];
item->hnext = *itemp;
item->pkgn = strdup(pkgn);
assert(item->pkgn);
item->rdeps = xbps_array_copy(rdeps);
*itemp = item;
return item;
}
static void
addDepn(struct item *item, struct item *xitem)
{
struct depn *depn = calloc(sizeof(*depn), 1);
assert(item);
assert(xitem);
depn->item = item;
depn->dnext = xitem->dbase;
xitem->dbase = depn;
}
/*
* Recursively calculate all dependencies.
*/
static struct item *
ordered_depends(struct xbps_handle *xhp, xbps_dictionary_t pkgd, bool rpool)
{
xbps_array_t rdeps, provides;
xbps_string_t str;
struct item *item, *xitem;
const char *pkgver;
char *pkgn;
assert(xhp);
assert(pkgd);
xbps_dictionary_get_cstring_nocopy(pkgd, "pkgver", &pkgver);
assert(pkgver);
rdeps = xbps_dictionary_get(pkgd, "run_depends");
provides = xbps_dictionary_get(pkgd, "provides");
xbps_dictionary_get_cstring_nocopy(pkgd, "pkgver", &pkgver);
pkgn = xbps_pkg_name(pkgver);
assert(pkgn);
item = addItem(rdeps, pkgn);
item->pkgver = pkgver;
assert(item);
free(pkgn);
for (unsigned int i = 0; i < xbps_array_count(rdeps); i++) {
xbps_dictionary_t curpkgd;
const char *curdep, *curpkgver;
const char *curdep;
char *curdepname;
bool virtual = false, found = false;
xbps_array_get_cstring_nocopy(rdeps, i, &curdep);
if (rpool) {
if ((curpkgd = xbps_rpool_get_pkg(xhp, curdep)) == NULL) {
if ((curpkgd = xbps_rpool_get_pkg(xhp, curdep)) == NULL)
curpkgd = xbps_rpool_get_virtualpkg(xhp, curdep);
virtual = true;
}
} else {
if ((curpkgd = xbps_pkgdb_get_pkg(xhp, curdep)) == NULL) {
if ((curpkgd = xbps_pkgdb_get_pkg(xhp, curdep)) == NULL)
curpkgd = xbps_pkgdb_get_virtualpkg(xhp, curdep);
virtual = true;
}
}
if (curpkgd == NULL) {
xbps_dbg_printf(xhp, "%s: cannot find `%s' dependency\n",
__func__, curdep);
return ENOENT;
}
if (((curdepname = xbps_pkgpattern_name(curdep)) == NULL) &&
((curdepname = xbps_pkg_name(curdep)) == NULL))
return EINVAL;
assert(curpkgd);
if ((curdepname = xbps_pkgpattern_name(curdep)) == NULL)
curdepname = xbps_pkg_name(curdep);
xbps_dictionary_get_cstring_nocopy(curpkgd, "pkgver", &curpkgver);
currdeps = xbps_dictionary_get(curpkgd, "run_depends");
assert(curdepname);
if (provides && xbps_match_pkgname_in_array(provides, curdepname)) {
xbps_dbg_printf(xhp, "%s: ignoring dependency %s "
@ -90,98 +164,30 @@ collect_rdeps(struct xbps_handle *xhp, xbps_dictionary_t pkgd, bool rpool)
free(curdepname);
continue;
}
if (virtual) {
xbps_dictionary_set_cstring_nocopy(pkgdep_pvmap, curdepname, pkgver);
}
xitem = lookupItem(curdepname);
if (xitem == NULL)
xitem = ordered_depends(xhp, curpkgd, rpool);
assert(xitem);
addDepn(item, xitem);
free(curdepname);
/* uniquify dependencies, sorting will be done later */
SLIST_FOREACH(pd, &pkgdep_list, pkgdep_entries) {
if (strcmp(pd->pkg, curpkgver) == 0) {
found = true;
break;
}
}
if (!found) {
pd = malloc(sizeof(*pd));
assert(pd);
pd->pkg = curpkgver;
pd->rdeps = xbps_array_copy(currdeps);
SLIST_INSERT_HEAD(&pkgdep_list, pd, pkgdep_entries);
if (xbps_array_count(currdeps)) {
int rv;
if ((rv = collect_rdeps(xhp, curpkgd, rpool)) != 0)
return rv;
}
}
}
return 0;
}
/* all deps were processed, add item to head */
str = xbps_string_create_cstring(item->pkgver);
assert(str);
xbps_array_add_first(result, str);
xbps_object_release(str);
static xbps_array_t
sortfulldeptree(void)
{
struct pkgdep *pd;
xbps_array_t result;
unsigned int ndeps = 0;
result = xbps_array_create();
assert(result);
SLIST_FOREACH(pd, &pkgdep_list, pkgdep_entries) {
if (!pd->rdeps) {
xbps_array_add_cstring_nocopy(result, pd->pkg);
SLIST_REMOVE(&pkgdep_list, pd, pkgdep, pkgdep_entries);
}
ndeps++;
}
while (xbps_array_count(result) < ndeps) {
bool found = false;
SLIST_FOREACH(pd, &pkgdep_list, pkgdep_entries) {
unsigned int i = 0, mdeps = 0, rdeps = 0;
rdeps = xbps_array_count(pd->rdeps);
for (i = 0; i < rdeps; i++) {
const char *pkgdep;
char *pkgname;
xbps_array_get_cstring_nocopy(pd->rdeps, i, &pkgdep);
if (((pkgname = xbps_pkgpattern_name(pkgdep)) == NULL) &&
((pkgname = xbps_pkg_name(pkgdep)) == NULL))
return NULL;
if (xbps_match_pkgname_in_array(result, pkgname)) {
mdeps++;
free(pkgname);
continue;
}
if (xbps_dictionary_get(pkgdep_pvmap, pkgname)) {
mdeps++;
free(pkgname);
continue;
}
free(pkgname);
}
if (mdeps == rdeps) {
found = true;
break;
}
}
if (found && !xbps_match_string_in_array(result, pd->pkg)) {
xbps_array_add_cstring_nocopy(result, pd->pkg);
SLIST_REMOVE(&pkgdep_list, pd, pkgdep, pkgdep_entries);
free(pd);
}
}
return result;
return item;
}
xbps_array_t HIDDEN
xbps_get_pkg_fulldeptree(struct xbps_handle *xhp, const char *pkg, bool rpool)
{
xbps_dictionary_t pkgd;
int rv;
result = xbps_array_create();
assert(result);
if (rpool) {
if (((pkgd = xbps_rpool_get_pkg(xhp, pkg)) == NULL) &&
@ -192,11 +198,7 @@ xbps_get_pkg_fulldeptree(struct xbps_handle *xhp, const char *pkg, bool rpool)
((pkgd = xbps_pkgdb_get_virtualpkg(xhp, pkg)) == NULL))
return NULL;
}
if (pkgdep_pvmap == NULL)
pkgdep_pvmap = xbps_dictionary_create();
(void)ordered_depends(xhp, pkgd, rpool);
if ((rv = collect_rdeps(xhp, pkgd, rpool)) != 0)
return NULL;
return sortfulldeptree();
return result;
}

8
tests/xbps/libxbps/find_pkg_orphans/main.c
View File

@ -28,19 +28,19 @@
static const char expected_output[] =
"xbps-git-20130310_2\n"
"xbps-triggers-1.0_1\n"
"libxbps-git-20130310_2\n"
"confuse-2.7_2\n"
"proplib-0.6.3_1\n"
"libarchive-3.1.2_1\n"
"libfetch-2.34_1\n"
"bzip2-1.0.5_1\n"
"liblzma-5.0.4_3\n"
"expat-2.1.0_3\n"
"attr-2.4.46_5\n"
"proplib-0.6.3_1\n"
"libfetch-2.34_1\n"
"libssl-1.0.1e_3\n"
"zlib-1.2.7_1\n"
"glibc-2.20_1\n";
"glibc-2.20_1\n"
"xbps-triggers-1.0_1\n";
static const char expected_output_all[] =
"unexistent-pkg-0_1\n"

4
tests/xbps/libxbps/shell/cyclic_deps.sh
View File

@ -61,8 +61,6 @@ cyclic_dep_full_head() {
}
cyclic_dep_full_body() {
atf_set "timeout" 5
atf_expect_timeout "Known bug: see https://github.com/voidlinux/xbps/issues/92"
mkdir some_repo
mkdir -p pkg_A/usr/bin pkg_B/usr/bin
cd some_repo
@ -86,5 +84,5 @@ cyclic_dep_full_body() {
atf_init_test_cases() {
atf_add_test_case cyclic_dep_vpkg
atf_add_test_case cyclic_dep_vpkg2
#atf_add_test_case cyclic_dep_full
atf_add_test_case cyclic_dep_full
}