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/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
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* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
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* Copyright (C) 2008 Sun Microsystems, Inc.
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#include <boost/lexical_cast.hpp>
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#include "drizzled/function/time/from_unixtime.h"
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#include "drizzled/session.h"
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#include "drizzled/temporal.h"
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#include "drizzled/time_functions.h"
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void Item_func_from_unixtime::fix_length_and_dec()
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session= current_session;
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collation.set(&my_charset_bin);
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decimals= DATETIME_DEC;
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max_length=type::Time::MAX_STRING_LENGTH*MY_CHARSET_BIN_MB_MAXLEN;
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String *Item_func_from_unixtime::val_str(String *str)
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if (get_date(time_tmp, 0))
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if (str->alloc(type::Time::MAX_STRING_LENGTH))
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time_tmp.convert(*str);
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int64_t Item_func_from_unixtime::val_int()
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if (get_date(time_tmp, 0))
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time_tmp.convert(ret);
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bool Item_func_from_unixtime::get_date(type::Time <ime, uint32_t)
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type::Time::usec_t fractional_tmp= 0;
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switch (args[0]->result_type()) {
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double double_tmp= args[0]->val_real();
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tmp= (uint64_t)(double_tmp);
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fractional_tmp= (type::Time::usec_t)((uint64_t)((double_tmp - tmp) * type::Time::FRACTIONAL_DIGITS) % type::Time::FRACTIONAL_DIGITS);
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tmp= (uint64_t)(args[0]->val_int());
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"tmp > TIMESTAMP_MAX_VALUE" check also covers case of negative
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from_unixtime() argument since tmp is unsigned.
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if ((null_value= (args[0]->null_value || tmp > TIMESTAMP_MAX_VALUE)))
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ltime.store(tmp, fractional_tmp);
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} /* namespace drizzled */