/*

 * Copyright (C) 2008  Kristian Høgsberg <krh@redhat.com>

 * Copyright (C) 2008  Red Hat, Inc

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 2 of the License, or

 * (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License along

 * with this program; if not, write to the Free Software Foundation, Inc.,

 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

 */

#ifndef _RAZOR_INTERNAL_H_

#define _RAZOR_INTERNAL_H_

#include <stdlib.h>

#include <stdint.h>

#include <stdarg.h>

#include <unistd.h>

#include "razor.h"

/* GCC visibility */

#if defined(__GNUC__) && __GNUC__ >= 4

#define RAZOR_EXPORT __attribute__ ((visibility("default")))

#else

#define RAZOR_EXPORT

#endif

#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))

#define ALIGN(value, base) (((value) + (base - 1)) & ~((base) - 1))

void *zalloc(size_t size);

struct array {

	void *data;

	int size, alloc;

};

void array_init(struct array *array);

void array_release(struct array *array);

void *array_add(struct array *array, int size);

struct list_head {

	uint32_t list_ptr : 24;

	uint32_t flags    : 8;

};

struct list {

	uint32_t data  : 24;

	uint32_t flags : 8;

};

void list_set_empty(struct list_head *head);

void list_set_ptr(struct list_head *head, uint32_t ptr);

void list_set_array(struct list_head *head, struct array *pool, struct array *items, int force_indirect);

struct list *list_first(struct list_head *head, struct array *pool);

struct list *list_next(struct list *list);

void list_remap_pool(struct array *pool, uint32_t *map);

void list_remap_head(struct list_head *list, uint32_t *map);

struct hashtable {

	struct array buckets;

	struct array *pool;

};

void hashtable_init(struct hashtable *table, struct array *pool);

void hashtable_release(struct hashtable *table);

uint32_t hashtable_insert(struct hashtable *table, const char *key);

uint32_t hashtable_lookup(struct hashtable *table, const char *key);

uint32_t hashtable_tokenize(struct hashtable *table, const char *string);

struct razor_set_section {

	uint32_t name;

	uint32_t offset;

	uint32_t size;

};

struct razor_set_header {

	uint32_t magic;

	uint32_t version;

	uint32_t num_sections;

};

#define RAZOR_MAGIC 	0x525a4442

#define RAZOR_VERSION	1

#define RAZOR_STRING_POOL		"string_pool"

#define RAZOR_PACKAGES			"packages"

#define RAZOR_PROPERTIES		"properties"

#define RAZOR_PACKAGE_POOL		"package_pool"

#define RAZOR_PROPERTY_POOL		"property_pool"

#define RAZOR_DETAILS_STRING_POOL	"details_string_pool"

#define RAZOR_FILES			"files"

#define RAZOR_FILE_POOL			"file_pool"

#define RAZOR_FILE_STRING_POOL		"file_string_pool"

struct razor_package {

	unsigned int name  : 24;

	unsigned int flags : 8;

	uint32_t version;

	uint32_t arch;

	uint32_t summary;

	uint32_t description;

	uint32_t url;

	uint32_t license;

	struct list_head properties;

	struct list_head files;

};

struct razor_property {

	uint32_t name;

	uint32_t flags;

	uint32_t version;

	struct list_head packages;

};

struct razor_entry {

	uint32_t name  : 24;

	uint32_t flags : 8;

	uint32_t start;

	struct list_head packages;

};

#define RAZOR_ENTRY_LAST	0x80

struct razor_set {

	struct array string_pool;

 	struct array packages;

 	struct array properties;

 	struct array files;

	struct array package_pool;

 	struct array property_pool;

 	struct array file_pool;

	struct array file_string_pool;

	struct array details_string_pool;

	struct razor_set_header *header;

	size_t header_size;

	struct razor_set_header *details_header;

	size_t details_header_size;

	struct razor_set_header *files_header;

	size_t files_header_size;

};

struct import_entry {

	uint32_t package;

	char *name;

};

struct import_directory {

	uint32_t name, count;

	struct array files;

	struct array packages;

	struct import_directory *last;

};

struct razor_importer {

	struct razor_set *set;

	struct hashtable table;

	struct hashtable file_table;

	struct hashtable details_table;

	struct razor_package *package;

	struct array properties;

	struct array files;

	struct array file_requires;

};

struct razor_package_iterator {

	struct razor_set *set;

	struct razor_package *package, *end;

	struct list *index;

	int free_index;

};

void

razor_package_iterator_init_for_property(struct razor_package_iterator *pi,

					 struct razor_set *set,

					 struct razor_property *property);

struct razor_property_iterator {

	struct razor_set *set;

	struct razor_property *property, *end;

	struct list *index;

};

struct razor_file_iterator {

	struct razor_set *set;

	struct array path;

	struct list *index;

};

struct razor_entry *

razor_set_find_entry(struct razor_set *set,

		     struct razor_entry *dir, const char *pattern);

struct razor_merger *

razor_merger_create(struct razor_set *set1, struct razor_set *set2);

void

razor_merger_add_package(struct razor_merger *merger,

			 struct razor_package *package);

struct razor_set *

razor_merger_finish(struct razor_merger *merger);

int run_lua_script(const char *root, const char *name, const char *body,

		   ssize_t len);

/* Utility functions */

void

razor_package_get_details_varg(struct razor_set *set,

			       struct razor_package *package,

			       va_list args);

int razor_create_dir(const char *root, const char *path);

int razor_write(int fd, const void *data, size_t size);

void *razor_file_get_contents(const char *filename, size_t *length);

int razor_file_free_contents(void *addr, size_t length);

typedef int (*razor_compare_with_data_func_t)(const void *p1,

					      const void *p,

					      void *data);

uint32_t *

razor_qsort_with_data(void *base, size_t nelem, size_t size,

		      razor_compare_with_data_func_t compare, void *data);

#endif /* _RAZOR_INTERNAL_H_ */