>From d199269813180d4a034fea54d025280aef3e4853 Mon Sep 17 00:00:00 2001
From: Nagy Gabor <[EMAIL PROTECTED]>
Date: Fri, 4 Jul 2008 15:39:26 +0200
Subject: [PATCH] New _alpm_find_dep_satisfier function

This function finds the first satisfier package in a pkglist.
Using it instead of _alpm_find_dep_satisfiers eliminates some memleaks and it 
is faster.
(_alpm_find_dep_satisfiers and _alpm_find_pkg_satisfiers will be removed soon.)

Signed-off-by: Nagy Gabor <[EMAIL PROTECTED]>
---
 lib/libalpm/deps.c |   25 +++++++++++++++++++------
 lib/libalpm/deps.h |    1 +
 2 files changed, 20 insertions(+), 6 deletions(-)

diff --git a/lib/libalpm/deps.c b/lib/libalpm/deps.c
index 410e22d..e67b008 100644
--- a/lib/libalpm/deps.c
+++ b/lib/libalpm/deps.c
@@ -189,6 +189,19 @@ alpm_list_t *_alpm_sortbydeps(alpm_list_t *targets, int 
reverse)
        return(newtargs);
 }
 
+pmpkg_t *_alpm_find_dep_satisfier(alpm_list_t *pkgs, pmdepend_t *dep)
+{
+       alpm_list_t *i;
+
+       for(i = pkgs; i; i = alpm_list_next(i)) {
+               pmpkg_t *pkg = i->data;
+               if(alpm_depcmp(pkg, dep)) {
+                       return(pkg);
+               }
+       }
+       return(NULL);
+}
+
 alpm_list_t *_alpm_find_dep_satisfiers(alpm_list_t *pkgs, pmdepend_t *dep)
 {
        alpm_list_t *i, *ret = NULL;
@@ -232,7 +245,7 @@ alpm_list_t SYMEXPORT *alpm_deptest(pmdb_t *db, alpm_list_t 
*targets)
                target = alpm_list_getdata(i);
                dep = _alpm_splitdep(target);
 
-               if(!_alpm_find_dep_satisfiers(_alpm_db_get_pkgcache(db), dep)) {
+               if(!_alpm_find_dep_satisfier(_alpm_db_get_pkgcache(db), dep)) {
                        ret = alpm_list_add(ret, target);
                }
                _alpm_dep_free(dep);
@@ -283,8 +296,8 @@ alpm_list_t SYMEXPORT *alpm_checkdeps(pmdb_t *db, int 
reversedeps,
                        pmdepend_t *depend = j->data;
                        /* 1. we check the upgrade list */
                        /* 2. we check database for untouched satisfying 
packages */
-                       if(!_alpm_find_dep_satisfiers(upgrade, depend) &&
-                          !_alpm_find_dep_satisfiers(dblist, depend)) {
+                       if(!_alpm_find_dep_satisfier(upgrade, depend) &&
+                          !_alpm_find_dep_satisfier(dblist, depend)) {
                                /* Unsatisfied dependency in the upgrade list */
                                char *missdepstring = 
alpm_dep_get_string(depend);
                                _alpm_log(PM_LOG_DEBUG, "checkdeps: missing 
dependency '%s' for package '%s'\n",
@@ -303,13 +316,13 @@ alpm_list_t SYMEXPORT *alpm_checkdeps(pmdb_t *db, int 
reversedeps,
                        pmpkg_t *lp = i->data;
                        for(j = alpm_pkg_get_depends(lp); j; j = j->next) {
                                pmdepend_t *depend = j->data;
-                               pmpkg_t *causingpkg = 
alpm_list_getdata(_alpm_find_dep_satisfiers(modified, depend));
+                               pmpkg_t *causingpkg = 
_alpm_find_dep_satisfier(modified, depend);
                                /* we won't break this depend, if it is already 
broken, we ignore it */
                                /* 1. check upgrade list for satisfiers */
                                /* 2. check dblist for satisfiers */
                                if(causingpkg &&
-                                  !_alpm_find_dep_satisfiers(upgrade, depend) 
&&
-                                  !_alpm_find_dep_satisfiers(dblist, depend)) {
+                                  !_alpm_find_dep_satisfier(upgrade, depend) &&
+                                  !_alpm_find_dep_satisfier(dblist, depend)) {
                                        char *missdepstring = 
alpm_dep_get_string(depend);
                                        _alpm_log(PM_LOG_DEBUG, "checkdeps: 
transaction would break '%s' dependency of '%s'\n",
                                                        missdepstring, 
alpm_pkg_get_name(lp));
diff --git a/lib/libalpm/deps.h b/lib/libalpm/deps.h
index 7bf178d..1e539b7 100644
--- a/lib/libalpm/deps.h
+++ b/lib/libalpm/deps.h
@@ -52,6 +52,7 @@ int _alpm_resolvedeps(pmdb_t *local, alpm_list_t *dbs_sync, 
pmpkg_t *syncpkg,
                **data);
 int _alpm_dep_edge(pmpkg_t *pkg1, pmpkg_t *pkg2);
 pmdepend_t *_alpm_splitdep(const char *depstring);
+pmpkg_t *_alpm_find_dep_satisfier(alpm_list_t *pkgs, pmdepend_t *dep);
 alpm_list_t *_alpm_find_dep_satisfiers(alpm_list_t *pkgs, pmdepend_t *dep);
 
 #endif /* _ALPM_DEPS_H */
-- 
1.5.6.1


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