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#include "pseudo_barrier.h"
#include <condition_variable>
#include <mutex>
#include <thread>
#include <vector>
std::mutex mutex;
std::condition_variable cond;
pseudo_barrier_t thread3_barrier;
void *
thread3(void *input)
{
pseudo_barrier_wait(thread3_barrier);
int dummy = 47; // thread3-before-lock
std::unique_lock<std::mutex> lock(mutex);
cond.notify_all(); // Set thread3 break point on notify_all at this line.
return NULL;
}
void *
thread2(void *input)
{
std::unique_lock<std::mutex> lock(mutex);
cond.notify_all(); // release main thread
cond.wait(lock);
return NULL;
}
void *
thread1(void *input)
{
std::thread thread_2(thread2, nullptr);
thread_2.join();
return NULL;
}
int main()
{
std::unique_lock<std::mutex> lock(mutex);
std::thread thread_1(thread1, nullptr);
cond.wait(lock); // wait for thread2
pseudo_barrier_init(thread3_barrier, 10);
std::vector<std::thread> thread_3s;
for (int i = 0; i < 10; i++) {
thread_3s.push_back(std::thread(thread3, nullptr));
}
cond.wait(lock); // wait for thread_3s
lock.unlock();
thread_1.join();
for (auto &t : thread_3s){
t.join();
}
return 0;
}
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