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/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
*
* Copyright (C) 2008 Sun Microsystems
*
* 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 <drizzled/server_includes.h>
#include CSTDINT_H
#include <drizzled/function/time/make_datetime.h>
/**
@todo
OPTIMIZATION
- Replace the switch with a function that should be called for each
date type.
- Remove sprintf and opencode the conversion, like we do in
Field_datetime.
The reason for this functions existence is that as we don't have a
way to know if a datetime/time value has microseconds in them
we are now only adding microseconds to the output if the
value has microseconds.
We can't use a standard make_date_time() for this as we don't know
if someone will use %f in the format specifier in which case we would get
the microseconds twice.
*/
bool make_datetime(date_time_format_types format, DRIZZLE_TIME *ltime,
String *str)
{
char *buff;
const CHARSET_INFO * const cs= &my_charset_bin;
uint32_t length= MAX_DATE_STRING_REP_LENGTH;
if (str->alloc(length))
return 1;
buff= (char*) str->ptr();
switch (format) {
case TIME_ONLY:
length= cs->cset->snprintf(cs, buff, length, "%s%02d:%02d:%02d",
ltime->neg ? "-" : "",
ltime->hour, ltime->minute, ltime->second);
break;
case TIME_MICROSECOND:
length= cs->cset->snprintf(cs, buff, length, "%s%02d:%02d:%02d.%06ld",
ltime->neg ? "-" : "",
ltime->hour, ltime->minute, ltime->second,
ltime->second_part);
break;
case DATE_ONLY:
length= cs->cset->snprintf(cs, buff, length, "%04d-%02d-%02d",
ltime->year, ltime->month, ltime->day);
break;
case DATE_TIME:
length= cs->cset->snprintf(cs, buff, length,
"%04d-%02d-%02d %02d:%02d:%02d",
ltime->year, ltime->month, ltime->day,
ltime->hour, ltime->minute, ltime->second);
break;
case DATE_TIME_MICROSECOND:
length= cs->cset->snprintf(cs, buff, length,
"%04d-%02d-%02d %02d:%02d:%02d.%06ld",
ltime->year, ltime->month, ltime->day,
ltime->hour, ltime->minute, ltime->second,
ltime->second_part);
break;
}
str->length(length);
str->set_charset(cs);
return 0;
}
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