socket_fastopen - Man Page

#include <socket.h>

int socket_fastopen(int s);

socket_fastopen enables TCP Fast Open support on a server-side TCP socket.  Call this before socket_listen().  If the platform does not support this functionality, returns -1 and sets errno to ENOPROTOOPT (or ENOSYS if the platform does not define ENOPROTOOPT).

Normally socket_fastopen returns 0. If anything goes wrong, socket_fastopen returns -1, setting errno appropriately.

 #include <socket.h>

 int s;
 char ip[4];
 uint16 p;

 s = socket_tcp4b();
 socket_fastopen(s);
 socket_bind4_reuse(s,ip,p);
 socket_listen(16);

socket_fastopen_connect4(3), socket_fastopen_connect6(3)

socket_fastopen_connect4(3), socket_fastopen_connect6(3), socket_quickack(3).