

/* $Id$ */

/* incorporated from D.J.Bernstein's cdb-0.75 (http://cr.yp.to/cdb.html)*/

#ifndef CDB_H
#define CDB_H

#include "uint32.h"

#define CDB_HASHSTART 5381

struct cdb {
	php_stream *fp;
	uint32 loop; /* number of hash slots searched under this key */
	uint32 khash; /* initialized if loop is nonzero */
	uint32 kpos; /* initialized if loop is nonzero */
	uint32 hpos; /* initialized if loop is nonzero */
	uint32 hslots; /* initialized if loop is nonzero */
	uint32 dpos; /* initialized if cdb_findnext() returns 1 */
	uint32 dlen; /* initialized if cdb_findnext() returns 1 */
};

uint32 cdb_hash(char *, unsigned int);

void cdb_free(struct cdb * TSRMLS_DC);
void cdb_init(struct cdb *, php_stream *fp TSRMLS_DC);

int cdb_read(struct cdb *, char *, unsigned int, uint32 TSRMLS_DC);

void cdb_findstart(struct cdb * TSRMLS_DC);
int cdb_findnext(struct cdb *, char *, unsigned int TSRMLS_DC);
int cdb_find(struct cdb *, char *, unsigned int TSRMLS_DC);

#define cdb_datapos(c) ((c)->dpos)
#define cdb_datalen(c) ((c)->dlen)

char *cdb_version();

#endif
