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db: optionally remove dirs when unref 

We want remove dirs when they are unreferenced so we remove all dirs on
apk del, but we don't want remove dirs when closing database. So we make
removing dir optional when unreferencing it.

This partially reverts commit c7ffc96a16.

fixes #406
cute-signatures
Natanael Copa 2010-09-22 14:16:18 +00:00
parent b4adf7645f
commit 5c4583a902
1 changed files with 15 additions and 13 deletions
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28
src/database.c
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@ -30,6 +30,11 @@
#include "apk_archive.h"
#include "apk_print.h"
enum {
APK_DISALLOW_RMDIR = 0,
APK_ALLOW_RMDIR = 1
};
int apk_verbosity = 1;
unsigned int apk_flags = 0;
@ -188,16 +193,19 @@ struct apk_name *apk_db_get_name(struct apk_database *db, apk_blob_t name)
return pn;
}
static void apk_db_dir_unref(struct apk_database *db, struct apk_db_dir *dir)
static void apk_db_dir_unref(struct apk_database *db, struct apk_db_dir *dir,
int allow_rmdir)
{
dir->refs--;
if (dir->refs > 0)
return;
db->installed.stats.dirs--;
if (allow_rmdir)
unlinkat(db->root_fd, dir->name, AT_REMOVEDIR);
if (dir->parent != NULL)
apk_db_dir_unref(db, dir->parent);
apk_db_dir_unref(db, dir->parent, allow_rmdir);
}
static struct apk_db_dir *apk_db_dir_ref(struct apk_db_dir *dir)
@ -307,16 +315,11 @@ static void apk_db_diri_mkdir(struct apk_database *db, struct apk_db_dir_instanc
}
}
static void apk_db_diri_rmdir(struct apk_database *db, struct apk_db_dir_instance *diri)
{
if (diri->dir->refs == 1)
unlinkat(db->root_fd, diri->dir->name, 1);
}
static void apk_db_diri_free(struct apk_database *db,
struct apk_db_dir_instance *diri)
struct apk_db_dir_instance *diri,
int allow_rmdir)
{
apk_db_dir_unref(db, diri->dir);
apk_db_dir_unref(db, diri->dir, allow_rmdir);
free(diri);
}
@ -1265,7 +1268,7 @@ void apk_db_close(struct apk_database *db)
list_for_each_entry(ipkg, &db->installed.packages, installed_pkgs_list) {
hlist_for_each_entry_safe(diri, dc, dn, &ipkg->owned_dirs, pkg_dirs_list) {
apk_db_diri_free(db, diri);
apk_db_diri_free(db, diri, APK_DISALLOW_RMDIR);
}
}
@ -1884,9 +1887,8 @@ static void apk_db_purge_pkg(struct apk_database *db,
db->installed.stats.files--;
}
}
apk_db_diri_rmdir(db, diri);
__hlist_del(dc, &ipkg->owned_dirs.first);
apk_db_diri_free(db, diri);
apk_db_diri_free(db, diri, APK_ALLOW_RMDIR);
}
}