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d7d98d03ca
* Use newlib libc library This change adds libcmin.a, which is created from newlib libc by selectively removing some of the object files (mostly related to heap management). The list of files is available in tools/sdk/lib/make_libcmin.sh. Files which are not needed are commented out. This change adds support for various functions which were missing, like sscanf, strftime, etc. * Fix some of the time functions * Redirect stdout to serial * Implement __putc_r * Switch to custom newlib build Built from https://github.com/igrr/newlib-xtensa using: ./configure --with-newlib --enable-multilib --disable-newlib-io-c99-formats --enable-newlib-supplied-syscalls --enable-target-optspace --program-transform-name="s&^&xtensa-lx106-elf-&" --disable-option-checking --with-target-subdir=xtensa-lx106-elf --target=xtensa-lx106-elf --enable-newlib-nano-formatted-io --enable-newlib-reent-small --prefix=path-to-arduino-core/tools/sdk/libc CROSS_CFLAGS="-DMALLOC_PROVIDED -DSIGNAL_PROVIDED -DABORT_PROVIDED" make make install * Update tests
105 lines
2.7 KiB
C
105 lines
2.7 KiB
C
/*
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* time.c - ESP8266-specific functions for SNTP
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* Copyright (c) 2015 Peter Dobler. All rights reserved.
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* This file is part of the esp8266 core for Arduino environment.
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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* This library 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.
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* See the GNU Lesser General Public License for more details.
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; 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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*
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*/
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#include <time.h>
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#include <sys/reent.h>
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#include "sntp.h"
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#ifndef _TIMEVAL_DEFINED
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#define _TIMEVAL_DEFINED
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struct timeval {
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time_t tv_sec;
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suseconds_t tv_usec;
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};
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#endif
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extern char* sntp_asctime(const struct tm *t);
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extern struct tm* sntp_localtime(const time_t *clock);
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// time gap in seconds from 01.01.1900 (NTP time) to 01.01.1970 (UNIX time)
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#define DIFF1900TO1970 2208988800UL
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static int s_daylightOffset_sec = 0;
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static long s_timezone_sec = 0;
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static time_t s_bootTime = 0;
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// calculate offset used in gettimeofday
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static void ensureBootTimeIsSet()
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{
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if (!s_bootTime)
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{
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time_t now = sntp_get_current_timestamp();
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if (now)
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{
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s_bootTime = now - millis() / 1000;
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}
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}
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}
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static void setServer(int id, const char* name_or_ip)
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{
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if (name_or_ip)
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{
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//TODO: check whether server is given by name or IP
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sntp_setservername(id, (char*) name_or_ip);
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}
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}
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void configTime(int timezone, int daylightOffset_sec, const char* server1, const char* server2, const char* server3)
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{
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sntp_stop();
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setServer(0, server1);
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setServer(1, server2);
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setServer(2, server3);
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s_timezone_sec = timezone;
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s_daylightOffset_sec = daylightOffset_sec;
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sntp_set_timezone(timezone/3600);
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sntp_init();
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}
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int clock_gettime(clockid_t unused, struct timespec *tp)
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{
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tp->tv_sec = millis() / 1000;
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tp->tv_nsec = micros() * 1000;
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return 0;
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}
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time_t time(time_t * t)
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{
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time_t seconds = sntp_get_current_timestamp();
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if (t)
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{
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*t = seconds;
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}
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return seconds;
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}
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int _gettimeofday_r(struct _reent* unused, struct timeval *tp, void *tzp)
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{
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if (tp)
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{
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ensureBootTimeIsSet();
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tp->tv_sec = (s_bootTime + millis()) / 1000;
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tp->tv_usec = micros() * 1000;
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}
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return 0;
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}
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