/* Copyright (C) 2005 Red Hat, Inc. */

#ifndef _SEMANAGE_DATABASE_LLIST_INTERNAL_H_

#define _SEMANAGE_DATABASE_LLIST_INTERNAL_H_

#include "database.h"

#include "handle.h"

/* Representation of the database once loaded in memory */

typedef struct cache_entry {

	record_t *data;

	struct cache_entry *prev;

	struct cache_entry *next;

} cache_entry_t;

/* LLIST dbase */

typedef struct dbase_llist {

	/* Method tables */

	record_table_t *rtable;

	dbase_table_t *dtable;

	/* In-memory representation (cache) */

	cache_entry_t *cache;

	cache_entry_t *cache_tail;

	unsigned int cache_sz;

	int cache_serial;

	int modified;

} dbase_llist_t;

/* Helpers for internal use only */

static inline void dbase_llist_cache_init(dbase_llist_t * dbase)

{

	dbase->cache = NULL;

	dbase->cache_tail = NULL;

	dbase->cache_sz = 0;

	dbase->cache_serial = -1;

	dbase->modified = 0;

}

static inline void dbase_llist_init(dbase_llist_t * dbase,

				    record_table_t * rtable,

				    dbase_table_t * dtable)

{

	dbase->rtable = rtable;

	dbase->dtable = dtable;

	dbase_llist_cache_init(dbase);

}

extern int dbase_llist_cache_prepend(semanage_handle_t * handle,

				     dbase_llist_t * dbase,

				     const record_t * data);

extern int dbase_llist_needs_resync(semanage_handle_t * handle,

				    dbase_llist_t * dbase);

extern int dbase_llist_set_serial(semanage_handle_t * handle,

				  dbase_llist_t * dbase);

static inline void dbase_llist_set_modified(dbase_llist_t * dbase, int status)

{

	dbase->modified = status;

}

/* LLIST - cache/transactions */

extern void dbase_llist_drop_cache(dbase_llist_t * dbase);

static inline int dbase_llist_is_modified(dbase_llist_t * dbase)

{

	return dbase->modified;

}

/* LLIST - polymorphism */

static inline record_table_t *dbase_llist_get_rtable(dbase_llist_t * dbase)

{

	return dbase->rtable;

}

/* LLIST - dbase API */

extern int dbase_llist_exists(semanage_handle_t * handle,

			      dbase_llist_t * dbase,

			      const record_key_t * key, int *response);

extern int dbase_llist_add(semanage_handle_t * handle,

			   dbase_llist_t * dbase,

			   const record_key_t * key, const record_t * data);

extern int dbase_llist_set(semanage_handle_t * handle,

			   dbase_llist_t * dbase,

			   const record_key_t * key, const record_t * data);

extern int dbase_llist_modify(semanage_handle_t * handle,

			      dbase_llist_t * dbase,

			      const record_key_t * key, const record_t * data);

extern int dbase_llist_count(semanage_handle_t * handle,

			     dbase_llist_t * dbase, unsigned int *response);

extern int dbase_llist_query(semanage_handle_t * handle,

			     dbase_llist_t * dbase,

			     const record_key_t * key, record_t ** response);

extern int dbase_llist_iterate(semanage_handle_t * handle,

			       dbase_llist_t * dbase,

			       int (*fn) (const record_t * record,

					  void *fn_arg), void *arg);

extern int dbase_llist_del(semanage_handle_t * handle,

			   dbase_llist_t * dbase, const record_key_t * key);

extern int dbase_llist_clear(semanage_handle_t * handle, dbase_llist_t * dbase);

extern int dbase_llist_list(semanage_handle_t * handle,

			    dbase_llist_t * dbase,

			    record_t *** records, unsigned int *count);

#endif