1 #include "pseudo_barrier.h"
2 #include "thread.h"
3 #include <chrono>
4 #include <cinttypes>
5 #include <csignal>
6 #include <cstdio>
7 #include <cstdlib>
8 #include <cstring>
9 #include <thread>
10 #include <unistd.h>
11 #include <vector>
12 
13 pseudo_barrier_t barrier;
14 
15 static void sigusr1_handler(int signo) {
16   char buf[100];
17   std::snprintf(buf, sizeof(buf),
18                 "received SIGUSR1 on thread id: %" PRIx64 "\n",
19                 get_thread_id());
20   write(STDOUT_FILENO, buf, strlen(buf));
21 }
22 
23 static void thread_func() {
24   pseudo_barrier_wait(barrier);
25   std::this_thread::sleep_for(std::chrono::minutes(1));
26 }
27 
28 int main(int argc, char **argv) {
29   int num = atoi(argv[1]);
30 
31   pseudo_barrier_init(barrier, num + 1);
32 
33   signal(SIGUSR1, sigusr1_handler);
34 
35   std::vector<std::thread> threads;
36   for(int i = 0; i < num; ++i)
37     threads.emplace_back(thread_func);
38 
39   pseudo_barrier_wait(barrier);
40 
41   std::puts("@started");
42 
43   for (std::thread &thread : threads)
44     thread.join();
45   return 0;
46 }
47