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/* values.h: constants and functions for document value handling.
*
* Copyright (C) 2006 Olly Betts
*
* 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 St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef OMEGA_INCLUDED_VALUES_H
#define OMEGA_INCLUDED_VALUES_H
#include <string>
// Include these to get uint32_t and htonl, etc.
#ifdef HAVE_WORKING_STDINT_H
# include <stdint.h>
#endif
#ifdef HAVE_ARPA_INET_H
# include <arpa/inet.h>
#endif
#ifdef HAVE_NETINET_IN_H
# include <netinet/in.h>
#endif
#ifdef __WIN32__
# ifndef HAVE_WORKING_STDINT_H
typedef unsigned int uint32_t;
# endif
inline uint32_t htonl(uint32_t v) {
return (v << 24) | ((v & 0xff00) << 8) | ((v >> 8) & 0xff00) | (v >> 24);
}
# define ntohl(V) htonl(V)
#endif
enum value_slot {
VALUE_LASTMOD = 0, // 4 byte big endian value - seconds since 1970.
VALUE_MD5 = 1 // 16 byte MD5 checksum of original document.
};
inline uint32_t binary_string_to_int(const std::string &s)
{
if (s.size() != 4) return (uint32_t)-1;
uint32_t v;
memcpy(&v, s.data(), 4);
return ntohl(v);
}
inline std::string int_to_binary_string(uint32_t v)
{
v = htonl(v);
return std::string(reinterpret_cast<const char*>(&v), 4);
}
#endif
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