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/*
* Copyright (c) 2007, 2014, Oracle and/or its affiliates. All rights reserved.
*
* 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; version 2 of the
* License.
*
* 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
*/
#include "sqlide_generics.h"
#include <sqlite/execute.hpp>
#ifndef _WIN32
#include <sys/time.h>
#endif
#include <locale>
namespace sqlide
{
class IsVarTypeEqTo : public boost::static_visitor<bool>
{
public:
IsVarTypeEqTo() {}
template <typename T> result_type operator()(const T &v1, const T &v2) const { return true; }
template <typename T1, typename T2> result_type operator()(const T1 &v1, const T2 &v2) const { return false; }
};
static const IsVarTypeEqTo is_var_type_eq_to;
bool is_var_null(const sqlite::variant_t &value)
{
static const sqlite::variant_t null_value= sqlite::null_t();
return boost::apply_visitor(is_var_type_eq_to, value, null_value);
}
bool is_var_unknown(const sqlite::variant_t &value)
{
static const sqlite::variant_t unknown_value= sqlite::unknown_t();
return boost::apply_visitor(is_var_type_eq_to, value, unknown_value);
}
bool is_var_blob(const sqlite::variant_t &value)
{
static const sqlite::variant_t blob_value= sqlite::blob_ref_t();
return boost::apply_visitor(is_var_type_eq_to, value, blob_value);
}
void optimize_sqlite_connection_for_speed(sqlite::connection *conn)
{
//!sqlite::execute(*conn, "pragma locking_mode = exclusive", true);
sqlite::execute(*conn, "pragma fsync = 0", true);
sqlite::execute(*conn, "pragma synchronous = off", true);
sqlite::execute(*conn, "pragma encoding = \"UTF-8\"", true);
sqlite::execute(*conn, "pragma temp_store = 2", true);
sqlite::execute(*conn, "pragma auto_vacuum = 0", true);
sqlite::execute(*conn, "pragma count_changes = 0", true);
sqlite::execute(*conn, "pragma journal_mode = OFF");
}
Sqlite_transaction_guarder::Sqlite_transaction_guarder(sqlite::connection *conn, bool use_immediate)
:
_conn(conn),
_in_trans(false)
{
if (_conn)
{
if (use_immediate)
sqlite::execute(*conn, "begin immediate", true);
else
sqlite::execute(*conn, "BEGIN", true);
_in_trans= true;
}
}
Sqlite_transaction_guarder::~Sqlite_transaction_guarder()
{
if (!_in_trans)
return;
const char *action= std::uncaught_exception() ? "rollback" : "commit";
sqlite::execute(*_conn, action, true);
}
void Sqlite_transaction_guarder::commit()
{
sqlite::execute(*_conn, "commit", true);
_in_trans= false;
}
void Sqlite_transaction_guarder::commit_and_start_new_transaction()
{
commit();
sqlite::execute(*_conn, "begin", true);
_in_trans= true;
}
} // namespace sqlide
/*
double timestamp()
{
#if defined(__WIN__) || defined(_WIN32) || defined(_WIN64)
return (double)GetTickCount() / 1000.0;
#else
struct timeval tv;
gettimeofday(&tv, NULL);
double seconds = tv.tv_sec;
double fraction = tv.tv_usec / (double)(1000000);
return seconds + fraction;
#endif
}
*/
std::tm local_timestamp()
{
std::time_t ltime;
time(<ime);
std::tm t;
#ifdef _WIN32
localtime_s(&t, <ime);
#else
localtime_r(<ime, &t);
#endif
return t;
}
std::string format_time(const std::tm &t, const char* format)
{
const size_t BUFFER_SIZE= 256;
char buf[BUFFER_SIZE];
strftime(buf, BUFFER_SIZE, format, &t);
return std::string(buf);
}
std::string current_time(const char* format)
{
return format_time(local_timestamp(), format);
}
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