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#ifndef bdbobj_h
#define bdbobj_h
/*
** Copyright 1998 - 2007 Double Precision, Inc. See COPYING for
** distribution information.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <sys/types.h>
#if HAVE_LIMITS_H
#include <limits.h>
#endif
#include <db.h>
#include <stdlib.h>
#ifdef __cplusplus
extern "C" {
#endif
struct bdbobj {
DB *dbf;
int has_dbf;
#if DB_VERSION_MAJOR >= 2
DBC *dbc;
int has_dbc;
#endif
} ;
void bdbobj_init(struct bdbobj *);
int bdbobj_open(struct bdbobj *, const char *, const char *);
void bdbobj_close(struct bdbobj *);
#define bdbobj_isopen(p) (!!(p)->has_dbf)
char *bdbobj_fetch(struct bdbobj *, const char *, size_t, size_t *, const char *);
int bdbobj_exists(struct bdbobj *, const char *, size_t);
int bdbobj_delete(struct bdbobj *, const char *, size_t);
int bdbobj_store(struct bdbobj *, const char *, size_t, const char *,
size_t, const char *);
char *bdbobj_firstkey(struct bdbobj *, size_t *, char **, size_t *);
char *bdbobj_nextkey(struct bdbobj *, size_t *, char **, size_t *);
#ifdef __cplusplus
} ;
#include <string>
class BDbObj {
struct bdbobj obj;
BDbObj(const BDbObj &); // Undefined
BDbObj &operator=(const BDbObj &); // Undefined
char *do_fetch(const char *, size_t, size_t &);
char *do_query(const char *, size_t, size_t &, const char *);
public:
BDbObj() { bdbobj_init(&obj); }
~BDbObj() { bdbobj_close(&obj); }
int Open(std::string filename, const char *mode)
{
return (bdbobj_open(&obj, filename.c_str(), mode));
}
int IsOpen() { return (bdbobj_isopen(&obj)); }
void Close() { bdbobj_close(&obj); }
std::string Fetch(std::string key, std::string mode)
{
size_t l;
char *p=Fetch(key.c_str(), key.size(), l, mode.c_str());
if (!p) return "";
std::string v(p, p+l);
free(p);
return v;
}
bool Exists(std::string key)
{
return !!Exists(key.c_str(), key.size());
}
bool Delete(std::string key)
{
return !!Delete(key.c_str(), key.size());
}
bool Store(std::string key, std::string val, std::string mode)
{
return Store(key.c_str(), key.size(),
val.c_str(), val.size(), mode.c_str());
}
std::string FetchFirstKeyVal(std::string &valRet)
{
char *key;
size_t keyLen;
char *val;
size_t valLen;
key=FetchFirstKeyVal(keyLen, val, valLen);
if (!key)
return "";
std::string r(key, key+keyLen);
valRet=std::string(val, val+valLen);
free(val);
return r;
}
std::string FetchNextKeyVal(std::string &valRet)
{
char *key;
size_t keyLen;
char *val;
size_t valLen;
key=FetchNextKeyVal(keyLen, val, valLen);
if (!key)
return "";
std::string r(key, key+keyLen);
valRet=std::string(val, val+valLen);
free(val);
return r;
}
char *Fetch(const char *key, size_t keylen, size_t &vallen,
const char *mode)
{
return (bdbobj_fetch(&obj, key, keylen, &vallen, mode));
}
int Exists(const char *key, size_t keylen)
{
return (bdbobj_exists(&obj, key, keylen));
}
int Delete(const char *key, size_t keylen)
{
return (bdbobj_delete(&obj, key, keylen));
}
int Store(const char *key, size_t keylen, const char *val,
size_t vallen, const char *mode)
{
return (bdbobj_store(&obj, key, keylen, val, vallen,
mode));
}
char *FetchFirstKeyVal(size_t &keylen, char *&val, size_t &vallen)
{
return (bdbobj_firstkey(&obj, &keylen, &val, &vallen));
}
char *FetchNextKeyVal(size_t &keylen, char *&val, size_t &vallen)
{
return (bdbobj_nextkey(&obj, &keylen, &val, &vallen));
}
} ;
#endif
#endif
