nuttx/libs/libc/time/lib_ctimer.c
Xiang Xiao e1ecb3e27c libc: Don't define localtime[_r] to macro when CONFIG_LIBC_LOCALTIME not define
since libc++ declare these function in ctime by:
using ::localtime[_r];

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: Ic0bb68b44c0cab838ab7cc34baee2aaa3ca8a9b5
2020-07-19 19:35:21 -07:00

76 lines
3.1 KiB
C

/****************************************************************************
* libs/libc/time/lib_ctimer.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 <time.h>
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: ctime_r
*
* Description:
* ctime and ctime_r convert the time provided in seconds since the
* epoch to a string representation. ctime is not re-entrant; ctime_r is
* re-entrant.
*
* Input Parameters:
* timep - The current time represented as seconds since the epoch.
* 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 *ctime_r(FAR const time_t *timep, FAR char *buf)
{
struct tm tm;
return asctime_r(localtime_r(timep, &tm), buf);
}