linux - Is using timers/signals in c static libraries bad practice? -


i'm building 2 static c libraries. each of libraries have routine needs run once every second after calling mylib_init();

i implemented in each library using setitimer, uses itimer_real resource , sigalrm signal. 

void start1mstimer() {     struct itimerval new;     memset(&new,0, sizeof(new));      new.it_interval.tv_sec=1;     new.it_value.tv_sec=1;      signal (sigalrm, onesectimeout);     setitimer (itimer_real, &new,null); }

ok far working.

now i'm building sample application uses both of these libraries, , conflicts arising. have realized application can have 1 handler each signal, , itimer_real can used 1 timer, not both. things not working now.

what better way me implement timing in each of libraries?

in general, bad idea have signal handlers inside of library?

you use threads + syncronization method. instead of writing signal handler, write thread. using semaphore, can run event thread either on timeout or on demand (ie app calls library function post semaphore).


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