lldb/test/API/functionalities/thread/thread_exit/main.cpp

// This test verifies the correct handling of child thread exits.

#include "mach_thread.h"
#include "pseudo_barrier.h"
#include <thread>

pseudo_barrier_t g_barrier1;
pseudo_barrier_t g_barrier2;
pseudo_barrier_t g_barrier3;

void *thread1() {
  // Synchronize with the main thread.
  pseudo_barrier_wait(g_barrier1);

  // Synchronize with the main thread and thread2.
  pseudo_barrier_wait(g_barrier2);

  // Return
  return NULL; // Set second breakpoint here
}

void *thread2() {
  // Synchronize with thread1 and the main thread.
  pseudo_barrier_wait(g_barrier2);

  // Synchronize with the main thread.
  pseudo_barrier_wait(g_barrier3);

  // Return
  return NULL;
}

int main() {
  pseudo_barrier_init(g_barrier1, 2);
  pseudo_barrier_init(g_barrier2, 3);
  pseudo_barrier_init(g_barrier3, 2);

  // Create a thread.
  std::thread thread_1(thread1);

  // Wait for thread1 to start.
  pseudo_barrier_wait(g_barrier1);

  // Create another thread.
  std::thread thread_2(thread2); // Set first breakpoint here

  // Wait for thread2 to start.
  pseudo_barrier_wait(g_barrier2);

  // Wait for the first thread to finish
  mach_port_t mach_thread_1 = get_mach_thread(thread_1);
  thread_1.join();
  wait_for_thread_cleanup(mach_thread_1);

  // Synchronize with the remaining thread
  int dummy = 47; // Set third breakpoint here
  pseudo_barrier_wait(g_barrier3);

  // Wait for the second thread to finish
  mach_port_t mach_thread_2 = get_mach_thread(thread_2);
  thread_2.join();
  wait_for_thread_cleanup(mach_thread_2);

  return 0; // Set fourth breakpoint here
}