c++ - 封装线程会产生问题

Question

我的 pthread_t 线程有以下封装:

#include <pthread.h>

class Thread
{
public:
  void         run(const int);
  static void  *run_helper(void *);
  bool         startThread(int);
  void         joinThread();

  pthread_t     th;      
};

其中 run 是我的线程例程，run_helper 如下:

void     *Thread::run_helper(int num)
{
  return (Thread *)this->run(num);
}

我这样开始我的线程:

bool    Thread::startThread(intptr_t arg)
{
  return (pthread_create(&this->th, NULL, &run_helper(arg), (void *)(intptr_t)arg));
}

但是当我编译时，出现以下错误:

error: lvalue required as unary ‘&’ operand return (pthread_create(&this->th, NULL, &run_helper(arg), (void *)(intptr_t)arg));

error: ‘this’ is unavailable for static member functions return (Thread *)this->run(num);

尽管尝试过，我似乎无法使这种封装工作。

Answer 1

我认为您的问题可能具体是 &this->th . &优先级高于 -> .也许试试 &(this->th) .