mirror of
https://github.com/emsesp/EMS-ESP32.git
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54 lines
1.4 KiB
C++
54 lines
1.4 KiB
C++
/*
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* uuid-common - Microcontroller common utilities
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* Copyright 2019 Simon Arlott
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program 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. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <uuid/common.h>
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#include <Arduino.h>
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#include <sys/time.h>
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namespace uuid {
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static uint64_t now_millis = 0;
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// returns system uptime in seconds
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uint32_t get_uptime_sec() {
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return (uint32_t)(now_millis / 1000ULL);
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}
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uint64_t get_uptime_ms() {
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return now_millis;
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}
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void set_uptime() {
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now_millis = esp_timer_get_time() / 1000ULL;
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}
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uint32_t get_uptime() {
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return (uint32_t)now_millis;
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}
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// both clocks are read live and subtracted in us, rounding each to ms or s first makes the offset jitter
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int64_t get_wall_offset_ms() {
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struct timeval tv;
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gettimeofday(&tv, nullptr);
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return ((int64_t)tv.tv_sec * 1000000 + tv.tv_usec - esp_timer_get_time()) / 1000;
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}
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} // namespace uuid
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