#include <unistd.h>
#include <signal.h>
#include <stdio.h>
#include <pthread.h>

void *foo(void *bar) {
	fprintf(stderr,"thread %p\n",pthread_self());
	sigset_t blocked;
	sigemptyset(&blocked);
	sigaddset(&blocked,SIGTERM);
	pthread_sigmask(SIG_BLOCK, &blocked,NULL);
	while(1) {
		pause();
		fprintf(stderr,"thread %p awaken\n",pthread_self());
	}
}
void handler(int foo) {
	fprintf(stderr,"foo %d %p\n",foo, pthread_self());
}

void setsig(int foo) {
	struct sigaction action;
	memset(&action, 0, sizeof(action));
	sigemptyset(&action.sa_mask);
	action.sa_handler = handler;
	if (sigaction(foo,&action, NULL) == -1)
		perror("sigaction");
}

int main(int argc, char *argv[] ) {
	pthread_t t;
	setsig(SIGTERM);
	pthread_create(&t, NULL, foo, NULL);
	fprintf(stderr,"main %p\n", pthread_self());
	while(1) {
		pause();
		fprintf(stderr,"main awaken\n");
	}
}