/**************************************************************************** * libs/libc/time/lib_ctimer.c * * Copyright (C) 2015 Gregory Nutt. All rights reserved. * Author: Gregory Nutt * * 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 #include #if defined(CONFIG_LIBC_LOCALTIME) || defined(CONFIG_TIME_EXTENDED) /**************************************************************************** * 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; #ifdef CONFIG_LIBC_LOCALTIME return asctime_r(localtime_r(timep, &tm), buf); #else return asctime_r(gmtime_r(timep, &tm), buf); #endif } #endif /* CONFIG_LIBC_LOCALTIME || CONFIG_TIME_EXTENDED */