types.h

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/*
 * Copyright 2006-2009 Savarese Software Research Corporation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     https://www.savarese.com/software/ApacheLicense-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef __SSRC_WSPR_TYPES_H
#define __SSRC_WSPR_TYPES_H

#include <ssrc/wispers-packages.h>
#include <ssrc/wisp/utility/TimeValue.h>

#include <string>

__BEGIN_NS_SSRC_WSPR

using NS_SSRC_WISP_UTILITY::TimeValue;
using NS_SSRC_WISP_UTILITY::InfiniteTimeValue;
using std::string;

typedef string sid_type;
enum SessionIdLimits { SessionIdNumBytes = 16, SessionIdNumChars = 32 };

typedef std::uint64_t uid_type;

typedef std::uint64_t gid_type;

typedef std::int64_t gsid_type;

typedef TimeValue::sec_type sec_type;

// These should probably be std::int64_t.
typedef unsigned int db_limit_type;
typedef unsigned int db_offset_type;

typedef std::uint64_t row_id_type;

// Conventions for representing most row identifiers..
const row_id_type NullRowId = boost::integer_traits<row_id_type>::const_min;
const row_id_type MinRowId = NullRowId + 1;
// We lose half of the 64-bit space because sqlite deals in signed integers.
// We used to use a signed row_id_type, but that presented its own
// complications.
//const row_id_type MaxRowId  = boost::integer_traits<row_id_type>::const_max;
const row_id_type MaxRowId  = boost::integer_traits<std::int64_t>::const_max;

template<typename value_type>
inline value_type null_row_id() {
  return boost::integer_traits<value_type>::const_min;
}

template<typename value_type>
inline value_type min_row_id() {
  return null_row_id<value_type>() + 1;
}

struct uuid_key_type {
  std::int64_t high_bits;
  std::int64_t low_bits;
};

__END_NS_SSRC_WSPR

#endif