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authorAllan McRae <allan@archlinux.org>2011-01-25 11:49:34 +1000
committerAllan McRae <allan@archlinux.org>2011-02-04 09:55:45 +1000
commitf8fdce6cb0da4d832ffa730e0dacb5544c1f8154 (patch)
treeeeba547be38459b041b9fa8089f8171ba006ee19 /lib
parent5dae577a87795e7666f05613cf9aa7207fd17346 (diff)
downloadpacman-f8fdce6cb0da4d832ffa730e0dacb5544c1f8154.tar.xz
Read pkgcache into hash
Read the package information for sync/local databases into a pmpkghash_t structure. Provide a alpm_db_get_pkgcache_list() method that returns the list from the hash object. Most usages of alpm_db_get_pkgcache are converted to this at this stage for ease of implementation. Review whether these are better accessing the hash table directly at a later stage. Signed-off-by: Allan McRae <allan@archlinux.org>
Diffstat (limited to 'lib')
-rw-r--r--lib/libalpm/alpm.h3
-rw-r--r--lib/libalpm/be_local.c12
-rw-r--r--lib/libalpm/be_sync.c13
-rw-r--r--lib/libalpm/conflict.c4
-rw-r--r--lib/libalpm/db.c55
-rw-r--r--lib/libalpm/db.h7
-rw-r--r--lib/libalpm/deps.c8
-rw-r--r--lib/libalpm/package.c2
-rw-r--r--lib/libalpm/remove.c6
-rw-r--r--lib/libalpm/sync.c8
10 files changed, 80 insertions, 38 deletions
diff --git a/lib/libalpm/alpm.h b/lib/libalpm/alpm.h
index f33abf7a..7fec293d 100644
--- a/lib/libalpm/alpm.h
+++ b/lib/libalpm/alpm.h
@@ -187,7 +187,8 @@ int alpm_db_setserver(pmdb_t *db, const char *url);
int alpm_db_update(int level, pmdb_t *db);
pmpkg_t *alpm_db_get_pkg(pmdb_t *db, const char *name);
-alpm_list_t *alpm_db_get_pkgcache(pmdb_t *db);
+pmpkghash_t *alpm_db_get_pkgcache(pmdb_t *db);
+alpm_list_t *alpm_db_get_pkgcache_list(pmdb_t *db);
pmgrp_t *alpm_db_readgrp(pmdb_t *db, const char *name);
alpm_list_t *alpm_db_get_grpcache(pmdb_t *db);
diff --git a/lib/libalpm/be_local.c b/lib/libalpm/be_local.c
index b97fca71..12021ac2 100644
--- a/lib/libalpm/be_local.c
+++ b/lib/libalpm/be_local.c
@@ -390,6 +390,10 @@ static int local_db_populate(pmdb_t *db)
}
/* subtract the two always-there pointers to get # of children */
est_count = (int)buf.st_nlink - 2;
+
+ /* initialize hash at 50% full */
+ db->pkgcache = _alpm_pkghash_create(est_count * 2);
+
while((ent = readdir(dbdir)) != NULL) {
const char *name = ent->d_name;
@@ -416,7 +420,7 @@ static int local_db_populate(pmdb_t *db)
}
/* duplicated database entries are not allowed */
- if(_alpm_pkg_find(db->pkgcache, pkg->name)) {
+ if(_alpm_pkghash_find(db->pkgcache, pkg->name)) {
_alpm_log(PM_LOG_ERROR, _("duplicated database entry '%s'\n"), pkg->name);
_alpm_pkg_free(pkg);
continue;
@@ -436,12 +440,14 @@ static int local_db_populate(pmdb_t *db)
/* add to the collection */
_alpm_log(PM_LOG_FUNCTION, "adding '%s' to package cache for db '%s'\n",
pkg->name, db->treename);
- db->pkgcache = alpm_list_add(db->pkgcache, pkg);
+ db->pkgcache = _alpm_pkghash_add(db->pkgcache, pkg);
count++;
}
closedir(dbdir);
- db->pkgcache = alpm_list_msort(db->pkgcache, (size_t)count, _alpm_pkg_cmp);
+ if(count > 0) {
+ db->pkgcache->list = alpm_list_msort(db->pkgcache->list, (size_t)count, _alpm_pkg_cmp);
+ }
return(count);
}
diff --git a/lib/libalpm/be_sync.c b/lib/libalpm/be_sync.c
index 0c968b45..2c70e2c5 100644
--- a/lib/libalpm/be_sync.c
+++ b/lib/libalpm/be_sync.c
@@ -232,6 +232,9 @@ static int sync_db_populate(pmdb_t *db)
}
est_count = estimate_package_count(&buf, archive);
+ /* initialize hash at 50% full */
+ db->pkgcache = _alpm_pkghash_create(est_count * 2);
+
while(archive_read_next_header(archive, &entry) == ARCHIVE_OK) {
const struct stat *st;
@@ -256,7 +259,7 @@ static int sync_db_populate(pmdb_t *db)
}
/* duplicated database entries are not allowed */
- if(_alpm_pkg_find(db->pkgcache, pkg->name)) {
+ if(_alpm_pkghash_find(db->pkgcache, pkg->name)) {
_alpm_log(PM_LOG_ERROR, _("duplicated database entry '%s'\n"), pkg->name);
_alpm_pkg_free(pkg);
continue;
@@ -269,7 +272,7 @@ static int sync_db_populate(pmdb_t *db)
/* add to the collection */
_alpm_log(PM_LOG_FUNCTION, "adding '%s' to package cache for db '%s'\n",
pkg->name, db->treename);
- db->pkgcache = alpm_list_add(db->pkgcache, pkg);
+ db->pkgcache = _alpm_pkghash_add(db->pkgcache, pkg);
count++;
} else {
/* we have desc, depends or deltas - parse it */
@@ -277,7 +280,9 @@ static int sync_db_populate(pmdb_t *db)
}
}
- db->pkgcache = alpm_list_msort(db->pkgcache, (size_t)count, _alpm_pkg_cmp);
+ if(count > 0) {
+ db->pkgcache->list = alpm_list_msort(db->pkgcache->list, (size_t)count, _alpm_pkg_cmp);
+ }
archive_read_finish(archive);
return(count);
@@ -343,7 +348,7 @@ static int sync_db_read(pmdb_t *db, struct archive *archive,
if(likely_pkg && strcmp(likely_pkg->name, pkgname) == 0) {
pkg = likely_pkg;
} else {
- pkg = _alpm_pkg_find(db->pkgcache, pkgname);
+ pkg = _alpm_pkghash_find(db->pkgcache, pkgname);
}
if(pkg == NULL) {
_alpm_log(PM_LOG_DEBUG, "package %s not found in %s sync database",
diff --git a/lib/libalpm/conflict.c b/lib/libalpm/conflict.c
index fc25e7d3..17e728a5 100644
--- a/lib/libalpm/conflict.c
+++ b/lib/libalpm/conflict.c
@@ -207,8 +207,8 @@ alpm_list_t *_alpm_outerconflicts(pmdb_t *db, alpm_list_t *packages)
return(NULL);
}
- alpm_list_t *dblist = alpm_list_diff(_alpm_db_get_pkgcache(db), packages,
- _alpm_pkg_cmp);
+ alpm_list_t *dblist = alpm_list_diff(_alpm_db_get_pkgcache_list(db),
+ packages, _alpm_pkg_cmp);
/* two checks to be done here for conflicts */
_alpm_log(PM_LOG_DEBUG, "check targets vs db\n");
diff --git a/lib/libalpm/db.c b/lib/libalpm/db.c
index c80dcbb8..c0c2f0ca 100644
--- a/lib/libalpm/db.c
+++ b/lib/libalpm/db.c
@@ -249,9 +249,9 @@ pmpkg_t SYMEXPORT *alpm_db_get_pkg(pmdb_t *db, const char *name)
/** Get the package cache of a package database
* @param db pointer to the package database to get the package from
- * @return the list of packages on success, NULL on error
+ * @return the hash of packages on success, NULL on error
*/
-alpm_list_t SYMEXPORT *alpm_db_get_pkgcache(pmdb_t *db)
+pmpkghash_t SYMEXPORT *alpm_db_get_pkgcache(pmdb_t *db)
{
ALPM_LOG_FUNC;
@@ -262,6 +262,21 @@ alpm_list_t SYMEXPORT *alpm_db_get_pkgcache(pmdb_t *db)
return(_alpm_db_get_pkgcache(db));
}
+/** Get the package cache of a package database
+ * @param db pointer to the package database to get the package from
+ * @return the list of packages on success, NULL on error
+ */
+alpm_list_t SYMEXPORT *alpm_db_get_pkgcache_list(pmdb_t *db)
+{
+ ALPM_LOG_FUNC;
+
+ /* Sanity checks */
+ ASSERT(handle != NULL, return(NULL));
+ ASSERT(db != NULL, return(NULL));
+
+ return(_alpm_db_get_pkgcache_list(db));
+}
+
/** Get a group entry from a package database
* @param db pointer to the package database to get the group from
* @param name of the group
@@ -417,7 +432,7 @@ alpm_list_t *_alpm_db_search(pmdb_t *db, const alpm_list_t *needles)
const alpm_list_t *i, *j, *k;
alpm_list_t *ret = NULL;
/* copy the pkgcache- we will free the list var after each needle */
- alpm_list_t *list = alpm_list_copy(_alpm_db_get_pkgcache(db));
+ alpm_list_t *list = alpm_list_copy(_alpm_db_get_pkgcache_list(db));
ALPM_LOG_FUNC;
@@ -523,14 +538,15 @@ void _alpm_db_free_pkgcache(pmdb_t *db)
_alpm_log(PM_LOG_DEBUG, "freeing package cache for repository '%s'\n",
db->treename);
- alpm_list_free_inner(db->pkgcache, (alpm_list_fn_free)_alpm_pkg_free);
- alpm_list_free(db->pkgcache);
+ alpm_list_free_inner(_alpm_db_get_pkgcache_list(db),
+ (alpm_list_fn_free)_alpm_pkg_free);
+ _alpm_pkghash_free(db->pkgcache);
db->pkgcache_loaded = 0;
_alpm_db_free_grpcache(db);
}
-alpm_list_t *_alpm_db_get_pkgcache(pmdb_t *db)
+pmpkghash_t *_alpm_db_get_pkgcache(pmdb_t *db)
{
ALPM_LOG_FUNC;
@@ -550,6 +566,19 @@ alpm_list_t *_alpm_db_get_pkgcache(pmdb_t *db)
return(db->pkgcache);
}
+alpm_list_t *_alpm_db_get_pkgcache_list(pmdb_t *db)
+{
+ ALPM_LOG_FUNC;
+
+ pmpkghash_t *hash = _alpm_db_get_pkgcache(db);
+
+ if(hash == NULL) {
+ return(NULL);
+ }
+
+ return(hash->list);
+}
+
/* "duplicate" pkg then add it to pkgcache */
int _alpm_db_add_pkgincache(pmdb_t *db, pmpkg_t *pkg)
{
@@ -568,7 +597,7 @@ int _alpm_db_add_pkgincache(pmdb_t *db, pmpkg_t *pkg)
_alpm_log(PM_LOG_DEBUG, "adding entry '%s' in '%s' cache\n",
alpm_pkg_get_name(newpkg), db->treename);
- db->pkgcache = alpm_list_add_sorted(db->pkgcache, newpkg, _alpm_pkg_cmp);
+ db->pkgcache = _alpm_pkghash_add_sorted(db->pkgcache, newpkg);
_alpm_db_free_grpcache(db);
@@ -577,8 +606,7 @@ int _alpm_db_add_pkgincache(pmdb_t *db, pmpkg_t *pkg)
int _alpm_db_remove_pkgfromcache(pmdb_t *db, pmpkg_t *pkg)
{
- void *vdata;
- pmpkg_t *data;
+ pmpkg_t *data = NULL;
ALPM_LOG_FUNC;
@@ -589,8 +617,7 @@ int _alpm_db_remove_pkgfromcache(pmdb_t *db, pmpkg_t *pkg)
_alpm_log(PM_LOG_DEBUG, "removing entry '%s' from '%s' cache\n",
alpm_pkg_get_name(pkg), db->treename);
- db->pkgcache = alpm_list_remove(db->pkgcache, pkg, _alpm_pkg_cmp, &vdata);
- data = vdata;
+ db->pkgcache = _alpm_pkghash_remove(db->pkgcache, pkg, data);
if(data == NULL) {
/* package not found */
_alpm_log(PM_LOG_DEBUG, "cannot remove entry '%s' from '%s' cache: not found\n",
@@ -613,14 +640,14 @@ pmpkg_t *_alpm_db_get_pkgfromcache(pmdb_t *db, const char *target)
return(NULL);
}
- alpm_list_t *pkgcache = _alpm_db_get_pkgcache(db);
+ pmpkghash_t *pkgcache = _alpm_db_get_pkgcache(db);
if(!pkgcache) {
_alpm_log(PM_LOG_DEBUG, "warning: failed to get '%s' from NULL pkgcache\n",
target);
return(NULL);
}
- return(_alpm_pkg_find(pkgcache, target));
+ return(_alpm_pkghash_find(pkgcache, target));
}
/* Returns a new group cache from db.
@@ -638,7 +665,7 @@ int _alpm_db_load_grpcache(pmdb_t *db)
_alpm_log(PM_LOG_DEBUG, "loading group cache for repository '%s'\n",
db->treename);
- for(lp = _alpm_db_get_pkgcache(db); lp; lp = lp->next) {
+ for(lp = _alpm_db_get_pkgcache_list(db); lp; lp = lp->next) {
const alpm_list_t *i;
pmpkg_t *pkg = lp->data;
diff --git a/lib/libalpm/db.h b/lib/libalpm/db.h
index b7fa7ca6..c5b3db69 100644
--- a/lib/libalpm/db.h
+++ b/lib/libalpm/db.h
@@ -23,6 +23,8 @@
#define _ALPM_DB_H
#include "alpm.h"
+#include "pkghash.h"
+
#include <time.h>
/* libarchive */
@@ -54,7 +56,7 @@ struct __pmdb_t {
int grpcache_loaded;
/* also indicates whether we are RO or RW */
int is_local;
- alpm_list_t *pkgcache;
+ pmpkghash_t *pkgcache;
alpm_list_t *grpcache;
alpm_list_t *servers;
@@ -84,7 +86,8 @@ int _alpm_db_load_pkgcache(pmdb_t *db);
void _alpm_db_free_pkgcache(pmdb_t *db);
int _alpm_db_add_pkgincache(pmdb_t *db, pmpkg_t *pkg);
int _alpm_db_remove_pkgfromcache(pmdb_t *db, pmpkg_t *pkg);
-alpm_list_t *_alpm_db_get_pkgcache(pmdb_t *db);
+pmpkghash_t *_alpm_db_get_pkgcache(pmdb_t *db);
+alpm_list_t *_alpm_db_get_pkgcache_list(pmdb_t *db);
int _alpm_db_ensure_pkgcache(pmdb_t *db, pmdbinfrq_t infolevel);
pmpkg_t *_alpm_db_get_pkgfromcache(pmdb_t *db, const char *target);
/* groups */
diff --git a/lib/libalpm/deps.c b/lib/libalpm/deps.c
index b667b0e8..dca8877e 100644
--- a/lib/libalpm/deps.c
+++ b/lib/libalpm/deps.c
@@ -475,7 +475,7 @@ static int can_remove_package(pmdb_t *db, pmpkg_t *pkg, alpm_list_t *targets,
* if checkdeps detected it would break something */
/* see if other packages need it */
- for(i = _alpm_db_get_pkgcache(db); i; i = i->next) {
+ for(i = _alpm_db_get_pkgcache_list(db); i; i = i->next) {
pmpkg_t *lpkg = i->data;
if(_alpm_dep_edge(lpkg, pkg) && !_alpm_pkg_find(targets, lpkg->name)) {
return(0);
@@ -508,7 +508,7 @@ void _alpm_recursedeps(pmdb_t *db, alpm_list_t *targs, int include_explicit)
for(i = targs; i; i = i->next) {
pmpkg_t *pkg = i->data;
- for(j = _alpm_db_get_pkgcache(db); j; j = j->next) {
+ for(j = _alpm_db_get_pkgcache_list(db); j; j = j->next) {
pmpkg_t *deppkg = j->data;
if(_alpm_dep_edge(pkg, deppkg)
&& can_remove_package(db, deppkg, targs, include_explicit)) {
@@ -586,7 +586,7 @@ pmpkg_t *_alpm_resolvedep(pmdepend_t *dep, alpm_list_t *dbs,
}
/* 2. satisfiers (skip literals here) */
for(i = dbs; i; i = i->next) {
- for(j = _alpm_db_get_pkgcache(i->data); j; j = j->next) {
+ for(j = _alpm_db_get_pkgcache_list(i->data); j; j = j->next) {
pmpkg_t *pkg = j->data;
if(_alpm_depcmp_tolerant(pkg, dep) && strcmp(pkg->name, dep->name) != 0 &&
!_alpm_pkg_find(excluding, pkg->name)) {
@@ -614,7 +614,7 @@ pmpkg_t *_alpm_resolvedep(pmdepend_t *dep, alpm_list_t *dbs,
/* first check if one provider is already installed locally */
for(i = providers; i; i = i->next) {
pmpkg_t *pkg = i->data;
- if (_alpm_pkg_find(_alpm_db_get_pkgcache(handle->db_local), pkg->name)) {
+ if (_alpm_pkghash_find(_alpm_db_get_pkgcache(handle->db_local), pkg->name)) {
alpm_list_free(providers);
return(pkg);
}
diff --git a/lib/libalpm/package.c b/lib/libalpm/package.c
index d4b3b9c0..0a1102c8 100644
--- a/lib/libalpm/package.c
+++ b/lib/libalpm/package.c
@@ -338,7 +338,7 @@ int SYMEXPORT alpm_pkg_has_scriptlet(pmpkg_t *pkg)
static void find_requiredby(pmpkg_t *pkg, pmdb_t *db, alpm_list_t **reqs)
{
const alpm_list_t *i;
- for(i = _alpm_db_get_pkgcache(db); i; i = i->next) {
+ for(i = _alpm_db_get_pkgcache_list(db); i; i = i->next) {
if(!i->data) {
continue;
}
diff --git a/lib/libalpm/remove.c b/lib/libalpm/remove.c
index 5def92a6..823795be 100644
--- a/lib/libalpm/remove.c
+++ b/lib/libalpm/remove.c
@@ -95,7 +95,7 @@ static void remove_prepare_cascade(pmtrans_t *trans, pmdb_t *db,
}
alpm_list_free_inner(lp, (alpm_list_fn_free)_alpm_depmiss_free);
alpm_list_free(lp);
- lp = alpm_checkdeps(_alpm_db_get_pkgcache(db), 1, trans->remove, NULL);
+ lp = alpm_checkdeps(_alpm_db_get_pkgcache_list(db), 1, trans->remove, NULL);
}
}
@@ -125,7 +125,7 @@ static void remove_prepare_keep_needed(pmtrans_t *trans, pmdb_t *db,
}
alpm_list_free_inner(lp, (alpm_list_fn_free)_alpm_depmiss_free);
alpm_list_free(lp);
- lp = alpm_checkdeps(_alpm_db_get_pkgcache(db), 1, trans->remove, NULL);
+ lp = alpm_checkdeps(_alpm_db_get_pkgcache_list(db), 1, trans->remove, NULL);
}
}
@@ -147,7 +147,7 @@ int _alpm_remove_prepare(pmtrans_t *trans, pmdb_t *db, alpm_list_t **data)
EVENT(trans, PM_TRANS_EVT_CHECKDEPS_START, NULL, NULL);
_alpm_log(PM_LOG_DEBUG, "looking for unsatisfied dependencies\n");
- lp = alpm_checkdeps(_alpm_db_get_pkgcache(db), 1, trans->remove, NULL);
+ lp = alpm_checkdeps(_alpm_db_get_pkgcache_list(db), 1, trans->remove, NULL);
if(lp != NULL) {
if(trans->flags & PM_TRANS_FLAG_CASCADE) {
diff --git a/lib/libalpm/sync.c b/lib/libalpm/sync.c
index 9f5bec3b..859b8c94 100644
--- a/lib/libalpm/sync.c
+++ b/lib/libalpm/sync.c
@@ -102,7 +102,7 @@ int SYMEXPORT alpm_sync_sysupgrade(int enable_downgrade)
ASSERT(trans->state == STATE_INITIALIZED, RET_ERR(PM_ERR_TRANS_NOT_INITIALIZED, -1));
_alpm_log(PM_LOG_DEBUG, "checking for package upgrades\n");
- for(i = _alpm_db_get_pkgcache(db_local); i; i = i->next) {
+ for(i = _alpm_db_get_pkgcache_list(db_local); i; i = i->next) {
pmpkg_t *lpkg = i->data;
if(_alpm_pkg_find(trans->add, lpkg->name)) {
@@ -149,7 +149,7 @@ int SYMEXPORT alpm_sync_sysupgrade(int enable_downgrade)
break; /* jump to next local package */
} else { /* 2. search for replacers in sdb */
int found = 0;
- for(k = _alpm_db_get_pkgcache(sdb); k; k = k->next) {
+ for(k = _alpm_db_get_pkgcache_list(sdb); k; k = k->next) {
spkg = k->data;
if(alpm_list_find_str(alpm_pkg_get_replaces(spkg), lpkg->name)) {
found = 1;
@@ -331,7 +331,7 @@ int _alpm_sync_prepare(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t *dbs_sync
}
/* Compute the fake local database for resolvedeps (partial fix for the phonon/qt issue) */
- alpm_list_t *localpkgs = alpm_list_diff(_alpm_db_get_pkgcache(db_local), trans->add, _alpm_pkg_cmp);
+ alpm_list_t *localpkgs = alpm_list_diff(_alpm_db_get_pkgcache_list(db_local), trans->add, _alpm_pkg_cmp);
/* Resolve packages in the transaction one at a time, in addtion
building up a list of packages which could not be resolved. */
@@ -518,7 +518,7 @@ int _alpm_sync_prepare(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t *dbs_sync
if(!(trans->flags & PM_TRANS_FLAG_NODEPS)) {
_alpm_log(PM_LOG_DEBUG, "checking dependencies\n");
- deps = alpm_checkdeps(_alpm_db_get_pkgcache(db_local), 1, trans->remove, trans->add);
+ deps = alpm_checkdeps(_alpm_db_get_pkgcache_list(db_local), 1, trans->remove, trans->add);
if(deps) {
pm_errno = PM_ERR_UNSATISFIED_DEPS;
ret = -1;