// This program demonstrates how to change the worker behavior
// upon the creation of an executor.

#include 


// ----------------------------------------------------------------------------
// Affinity
// ----------------------------------------------------------------------------
#if defined(__linux__)
  #include 
  #include 
#elif defined(_WIN32)
  #include 
#elif defined(__APPLE__)
  #include 
  #include 
#endif

// affine the given thread to a specific core
bool affine(std::thread& thread, size_t core_id) {
#if defined(__linux__)
  cpu_set_t cpuset;
  CPU_ZERO(&cpuset);
  CPU_SET(core_id, &cpuset);
  pthread_t native_handle = thread.native_handle();
  return pthread_setaffinity_np(native_handle, sizeof(cpu_set_t), &cpuset) == 0;
#elif defined(_WIN32)
  return SetThreadAffinityMask(thread.native_handle(), 1ULL