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void init_sigaction(void)
{
struct sigaction tact;
tact.sa_handler = drawFrame_proc;
tact.sa_flags = 0;
sigemptyset(&tact.sa_mask);
sigaction(SIGALRM, &tact, NULL);
}
void init_time()
{
struct itimerval value;
value.it_value.tv_sec = 0;
value.it_value.tv_usec = 40000;
value.it_interval = value.it_value;
setitimer(ITIMER_REAL, &value, NULL);
}
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char *buffer[MAXSIZE];
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