小编mik*_*o77的帖子

考虑以下程序:

#include <iostream>
#include <pthread.h>
#include <stdexcept>
#include <unistd.h>

static void* busy(void*)
{
  int oldstate ;
  auto result = pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS,&oldstate) ;
  if (result != 0)
#ifdef NOEXCEPT
    { std::cerr << "pthread_setcanceltype" << std::endl ; abort() ; }
#else
    throw std::runtime_error("pthread_setcanceltype") ;
#endif
  while (true) 
    ;
  return nullptr ;
}

static pthread_t start()
{
  pthread_t t ;
  int result = pthread_create(&t,nullptr,busy,nullptr) ;
  if (result != 0)
    throw std::runtime_error("pthread_create") ;
  return t ;
}

static void terminate(pthread_t t)
{
  auto result = …