From f8fdce6cb0da4d832ffa730e0dacb5544c1f8154 Mon Sep 17 00:00:00 2001 From: Allan McRae Date: Tue, 25 Jan 2011 11:49:34 +1000 Subject: 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 --- lib/libalpm/alpm.h | 3 ++- lib/libalpm/be_local.c | 12 ++++++++--- lib/libalpm/be_sync.c | 13 ++++++++---- lib/libalpm/conflict.c | 4 ++-- lib/libalpm/db.c | 55 +++++++++++++++++++++++++++++++++++++------------- lib/libalpm/db.h | 7 +++++-- lib/libalpm/deps.c | 8 ++++---- lib/libalpm/package.c | 2 +- lib/libalpm/remove.c | 6 +++--- lib/libalpm/sync.c | 8 ++++---- 10 files changed, 80 insertions(+), 38 deletions(-) (limited to 'lib') 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 /* 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; -- cgit v1.2.3-70-g09d2