esp_mqtt/user/sys_time.c

#include "c_types.h"
#include "osapi.h"

typedef union _timer {
    uint32_t time_s[2];
    uint64_t time_l;
} long_time_t;

static long_time_t time;
static uint32_t old;

uint64_t ICACHE_FLASH_ATTR get_long_systime() {
    uint32_t now = system_get_time();
    if (now < old) {
	time.time_s[1]++;
    }
    old = now;
    time.time_s[0] = now;
    return time.time_l;
}

uint64_t ICACHE_FLASH_ATTR get_low_systime() {
    get_long_systime();
    return time.time_s[0];
}

void init_long_systime() {
    old = system_get_time();
    time.time_l = (uint64_t) old;
}