FD_ISSET TCP UDP
Check if a socket file descriptor ID is a member of a file descriptor set. See function NET_SOCK_DESC_IS_SET() for more information.
Files
net_bsd.h
Prototype
FD_ISSET(fd, fdsetp);
Arguments
fd
File descriptor bit to be checked.
fdsetp
Pointer to the file descriptor set where 'fd' will be checked if it is set.
Returned Value
A non-zero value if the bit for the file descriptor 'fd' is set in the file descriptor set pointed to by 'fdset'.
0, otherwise.
Required Configuration
None.