forked from ariadne/pkgconf
86 lines
1.6 KiB
C
86 lines
1.6 KiB
C
/*
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* cache.c
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* package object cache
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*
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* Copyright (c) 2013 pkgconf authors (see AUTHORS).
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* This software is provided 'as is' and without any warranty, express or
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* implied. In no event shall the authors be liable for any damages arising
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* from the use of this software.
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*/
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#include <libpkgconf/libpkgconf.h>
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static pkg_list_t pkg_cache = PKG_LIST_INITIALIZER;
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/*
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* pkg_cache_lookup(id)
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*
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* looks up a package in the cache given an 'id' atom,
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* such as 'gtk+-3.0' and returns the already loaded version
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* if present.
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*/
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pkg_t *
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pkg_cache_lookup(const char *id)
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{
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pkg_node_t *node;
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PKG_FOREACH_LIST_ENTRY(pkg_cache.head, node)
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{
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pkg_t *pkg = node->data;
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if (!strcmp(pkg->id, id))
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return pkg_ref(pkg);
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}
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return NULL;
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}
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/*
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* pkg_cache_add(pkg)
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*
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* adds an entry for the package to the package cache.
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* the cache entry must be removed if the package is freed.
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*/
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void
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pkg_cache_add(pkg_t *pkg)
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{
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if (pkg == NULL)
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return;
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pkg_ref(pkg);
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pkg_node_insert(&pkg->cache_iter, pkg, &pkg_cache);
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}
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/*
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* pkg_cache_remove(pkg)
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*
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* deletes a package from the cache entry.
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*/
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void
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pkg_cache_remove(pkg_t *pkg)
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{
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if (pkg == NULL)
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return;
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pkg_node_delete(&pkg->cache_iter, &pkg_cache);
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}
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void
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pkg_cache_free(void)
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{
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pkg_node_t *iter, *iter2;
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PKG_FOREACH_LIST_ENTRY_SAFE(pkg_cache.head, iter2, iter)
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{
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pkg_t *pkg = iter->data;
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pkg_free(pkg);
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}
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}
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