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#include <stdint.h>

#include <sys/time.h>



static uint64_t clock_millis() {

    struct timeval tv;

    static uint64_t last = 0;

    int result = gettimeofday(&tv, NULL);

    if (result != 0) {

        printf("Failed to read clock\n");

        return last;

    }

    last = (uint64_t)tv.tv_sec * 1000 + (uint64_t)tv.tv_usec / 1000;

    return last;

}