nuttx/libs/libc/time/lib_asctimer.c
Xiang Xiao 1e3f457c9e Remove TIME_EXTENDED option to more conform C standard
Gregory Nutt <gnutt@nuttx.org>

    Run all .c and .h files modified in this PR through nxstyle and correct all coding standard problems.

Xiang Xiao <xiaoxiang@xiaomi.com>

    Remove TIME_EXTENDED option to more conform C standard

    Note: the code/data size increment is small
2020-01-23 08:17:22 -06:00

95 lines
3.6 KiB
C

/****************************************************************************
* libs/libc/time/lib_asctimer.c
*
* Copyright (C) 2015 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdio.h>
#include <time.h>
/****************************************************************************
* Private Data
****************************************************************************/
/* Note: These strings duplicate other definitions in other files. These
* definitions could be combined to save a little FLASH space.
*/
static const char * const g_wday_name[7] =
{
"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"
};
static const char * const g_mon_name[12] =
{
"Jan", "Feb", "Mar", "Apr", "May", "Jun",
"Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
};
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: asctime_r
*
* Description:
* asctime and asctime_r convert the time provided in a struct tm to a
* string representation. asctime is not re-entrant; asctime_r is re-
* entrant.
*
* Input Parameters:
* tp - Pointer to the time to be converted.
* buf - A user provided buffer to receive the 26 character time string.
*
* Returned Value:
* One success, the pointer to the 'buf' is returned; on failure, NULL is
* returned.
*
****************************************************************************/
FAR char *asctime_r(FAR const struct tm *tp, FAR char *buf)
{
snprintf(buf, 26, "%.3s %.3s%3d %.2d:%.2d:%.2d %d\n",
g_wday_name[tp->tm_wday], g_mon_name[tp->tm_mon],
tp->tm_mday, tp->tm_hour, tp->tm_min, tp->tm_sec,
1900 + tp->tm_year);
return buf;
}