c++ - 无法正确创建线程

Question

谁能告诉我我做错了什么？ (我省略了程序的其余部分，因为它很长......)

#include <pthread.h>

void *RTPfun(char *client_addr);

int main(int argc, char *argv[])
{ 
  char* client_addr;
  pthread_t RTPthread;

  // ...

  pthread_create(&RTPthread, NULL, &RTPfun, client_addr) 
}

void *RTPfun(char * client_addr)
{
  // ...
  return;
}

错误:

TCPserver.c: In function ‘main’:
TCPserver.c:74:5: warning: passing argument 3 of ‘pthread_create’ from incompatible pointer type [enabled by default]
/usr/include/pthread.h:225:12: note: expected ‘void * (*)(void *)’ but argument is of type ‘void * (*)(char *)’

Answer 1

Pthread 与接收 void* 并返回 void* 的函数一起工作。

您需要将函数的参数从 char* 更改为 void*。这是一个替代方案:

#include <pthread.h>



void *RTPfun(void *client_addr);


int main(int argc, char *argv[])
{ 
  char* client_addr;
  pthread_t RTPthread;

   ...
   ...

  pthread_create(&RTPthread, NULL, &RTPfun, client_addr) 
}



void *RTPfun(void* data)
{
 char *client_addr = (char*)data;
 ....
 return;
}