#define _GNU_SOURCE
#include <dlfcn.h>
#include <semaphore.h>
#include <stdio.h>
#include <time.h>
#include <unistd.h>

static int (*_realSemTimedWait)() = NULL;

int sem_timedwait(sem_t *sem, const struct timespec *abs_timeout)
{
    if (abs_timeout->tv_nsec >= 1000000000)
    {
        //fprintf(stderr, "to: %lu:%lu\n", abs_timeout->tv_sec, abs_timeout->tv_nsec);
        ((struct timespec *)abs_timeout)->tv_nsec -= 1000000000;
        ((struct timespec *)abs_timeout)->tv_sec++;
    }
    _realSemTimedWait(sem, abs_timeout);
}

__attribute__((constructor)) int init(void)
{
    _realSemTimedWait = dlsym(RTLD_NEXT, "sem_timedwait");
}