/* ldbmcache.c - maintain a cache of open bdb2 files */

#include "portable.h"

#include <stdio.h>

#include <ac/errno.h>
#include <ac/socket.h>
#include <ac/string.h>
#include <ac/time.h>

#include <sys/stat.h>

#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif

#include "ldapconfig.h"
#include "slap.h"
#include "back-bdb2.h"

struct dbcache *
bdb2i_cache_open(
    BackendDB	*be,
    char	*name,
    char	*suffix,
    int		flags
)
{
	/*  all files are open, so return handle from file cache  */
	if ( ( slapMode == SLAP_SERVER_MODE ) || ( slapMode == SLAP_TOOL_MODE ) ) {
		struct	ldbminfo	*li = (struct ldbminfo *) be->be_private;
		char	buf[MAXPATHLEN];

		/*  use short name  */
		sprintf( buf, "%s%s", name, suffix );
		return( bdb2i_get_db_file_cache( li, buf ));

	}

	/*  if not SERVER or TOOL, who else would ask?
		NO ONE, so return error  */

	Debug( LDAP_DEBUG_ANY,
	"bdb2i_cache_open: database user (%d) unknown -- cannot open \"%s%s\".\n",
			slapMode, name, suffix );

	return( NULL );
}

void
bdb2i_cache_close( BackendDB *be, struct dbcache *db )
{
	/*  all files stay open until SERVER or TOOL shut down  */
	if ( ( slapMode == SLAP_SERVER_MODE ) || ( slapMode == SLAP_TOOL_MODE ) )
			return;

	/*  if unknown user, complain  */
	Debug( LDAP_DEBUG_ANY,
		"bdb2i_cache_close: database user (%d) unknown -- ignored.\n",
		slapMode, 0, 0 );

	return;
}

void
bdb2i_cache_really_close( BackendDB *be, struct dbcache *db )
{
	struct ldbminfo	*li = (struct ldbminfo *) be->be_private;

	/*  all files stay open until SERVER or TOOL shut down  */
	if ( ( slapMode == SLAP_SERVER_MODE ) || ( slapMode == SLAP_TOOL_MODE ) )
			return;

	/*  if unknown user, complain  */
	Debug( LDAP_DEBUG_ANY,
		"bdb2i_cache_really_close: database user (%d) unknown -- ignored.\n",
		slapMode, 0, 0 );

	return;
}

void
bdb2i_cache_flush_all( BackendDB *be )
{
	struct ldbminfo	*li = (struct ldbminfo *) be->be_private;
	int		i;

	/*  if SERVER or TOOL, syncing is done by TP, or during shutdown  */
	if ( ( slapMode == SLAP_SERVER_MODE ) || ( slapMode == SLAP_TOOL_MODE ) )
			return;

	/*  if unknown user, complain  */
	Debug( LDAP_DEBUG_ANY,
		"bdb2i_cache_really_close: database user (%d) unknown -- ignored.\n",
		slapMode, 0, 0 );

	return;
}

Datum
bdb2i_cache_fetch(
    struct dbcache	*db,
    Datum		key
)
{
	Datum	data;

	ldbm_datum_init( data );

	data = ldbm_fetch( db->dbc_db, key );

	return( data );
}

int
bdb2i_cache_store(
    struct dbcache	*db,
    Datum		key,
    Datum		data,
    int			flags
)
{
	int	rc;

#ifdef LDBM_DEBUG
	Statslog( LDAP_DEBUG_STATS,
		"=> bdb2i_cache_store(): key.dptr=%s, key.dsize=%d\n",
		key.dptr, key.dsize, 0, 0, 0 );

	Statslog( LDAP_DEBUG_STATS,
		"=> bdb2i_cache_store(): key.dptr=0x%08x, data.dptr=0x%0 8x\n",
		key.dptr, data.dptr, 0, 0, 0 );

	Statslog( LDAP_DEBUG_STATS,
		"=> bdb2i_cache_store(): data.dptr=%s, data.dsize=%d\n",
		data.dptr, data.dsize, 0, 0, 0 );

	Statslog( LDAP_DEBUG_STATS,
		"=> bdb2i_cache_store(): flags=0x%08x\n",
		flags, 0, 0, 0, 0 );
#endif /* LDBM_DEBUG */

	rc = ldbm_store( db->dbc_db, key, data, flags );

	return( rc );
}

int
bdb2i_cache_delete(
    struct dbcache	*db,
    Datum		key
)
{
	int	rc;

	rc = ldbm_delete( db->dbc_db, key );

	return( rc );
}