How can I listen on more than one port at a time?
Answer / chaitanya
The best way to do this is with the select() call. This tells the kernel to let you know when a socket is available for use. You can have one process do i/o with multiple sockets with this call. If you want to wait for a connect on sockets 4, 6 and 10 you might execute the following code snippet:
fd_set socklist;
FD_ZERO(&socklist); /* Always clear the structure first. */
FD_SET(4, &socklist);
FD_SET(6, &socklist);
FD_SET(10, &socklist);
if (select(11, NULL, &socklist, NULL, NULL) < 0)
perror("select");
| Is This Answer Correct ? | 0 Yes | 0 No |
Explain the TIME_WAIT state.
What pieces of information make up a socket?
What is the difference between SO_REUSEADDR and SO_REUSEPORT?
Can multiple sockets use the same port?
What is the difference between close() and shutdown()?
Why does connect() succeed even before my server did an accept()?
How can I write a multi-homed server?
How do I convert a string into an internet address?
How should I choose a port number for my server?
How do I properly close a socket?
What is the difference between connected and unconnected sockets?
How can I bind() to a port number < 1024?