fcntl

[vedanu]

Hi,

Can any one explain what is the below command doing.

 flags = fcntl(m_sock, F_GETFL);
 

   if (fcntl(m_sock, F_SETFL, flags & (~ O_NONBLOCK)) == -1)

Whether it is trying for blocking or non-blocking?

Thanks,
Veda

[cnamejj]

Hi,

Can any one explain what is the below command doing.

 flags = fcntl(m_sock, F_GETFL);
 

   if (fcntl(m_sock, F_SETFL, flags & (~ O_NONBLOCK)) == -1)

Whether it is trying for blocking or non-blocking?

Thanks,
Veda

I believe it's making the socket blocking. The translation of the C to something English-like would be "current flags and everything except non-blocking".