pkgconf/libpkgconf/queue.c

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/*
* queue.c
* compilation of a list of packages into a world dependency set
*
* Copyright (c) 2012 pkgconf authors (see AUTHORS).
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* This software is provided 'as is' and without any warranty, express or
* implied. In no event shall the authors be liable for any damages arising
* from the use of this software.
*/
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#include <libpkgconf/libpkgconf.h>
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typedef struct {
pkgconf_node_t iter;
char *package;
} pkgconf_queue_t;
void
pkgconf_queue_push(pkgconf_list_t *list, const char *package)
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{
pkgconf_queue_t *pkgq = calloc(sizeof(pkgconf_queue_t), 1);
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pkgq->package = strdup(package);
pkgconf_node_insert_tail(&pkgq->iter, pkgq, list);
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}
bool
pkgconf_queue_compile(pkgconf_pkg_t *world, pkgconf_list_t *list)
{
pkgconf_node_t *iter;
PKGCONF_FOREACH_LIST_ENTRY(list->head, iter)
{
pkgconf_queue_t *pkgq;
pkgq = iter->data;
pkgconf_dependency_parse(world, &world->requires, pkgq->package);
}
return (world->requires.head != NULL);
}
void
pkgconf_queue_free(pkgconf_list_t *list)
{
pkgconf_node_t *node, *tnode;
PKGCONF_FOREACH_LIST_ENTRY_SAFE(list->head, tnode, node)
{
pkgconf_queue_t *pkgq = node->data;
free(pkgq->package);
free(pkgq);
}
}
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static inline unsigned int
pkgconf_queue_verify(pkgconf_pkg_t *world, pkgconf_list_t *list, int maxdepth, unsigned int flags)
{
if (!pkgconf_queue_compile(world, list))
return PKGCONF_PKG_ERRF_DEPGRAPH_BREAK;
return pkgconf_pkg_verify_graph(world, maxdepth, flags);
}
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bool
pkgconf_queue_apply(pkgconf_list_t *list, pkgconf_queue_apply_func_t func, int maxdepth, unsigned int flags, void *data)
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{
pkgconf_pkg_t world = {
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.id = "world",
.realname = "virtual world package",
.flags = PKGCONF_PKG_PROPF_VIRTUAL,
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};
/* if maxdepth is one, then we will not traverse deeper than our virtual package. */
if (!maxdepth)
maxdepth = -1;
if (pkgconf_queue_verify(&world, list, maxdepth, flags) != PKGCONF_PKG_ERRF_OK)
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return false;
if (!func(&world, data, maxdepth, flags))
{
pkgconf_pkg_free(&world);
return false;
}
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pkgconf_pkg_free(&world);
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return true;
}
bool
pkgconf_queue_validate(pkgconf_list_t *list, int maxdepth, unsigned int flags)
{
bool retval = true;
pkgconf_pkg_t world = {
.id = "world",
.realname = "virtual world package",
.flags = PKGCONF_PKG_PROPF_VIRTUAL,
};
/* if maxdepth is one, then we will not traverse deeper than our virtual package. */
if (!maxdepth)
maxdepth = -1;
if (pkgconf_queue_verify(&world, list, maxdepth, flags) != PKGCONF_PKG_ERRF_OK)
retval = false;
pkgconf_pkg_free(&world);
return retval;
}