tcp_done - half-closes a TCP connection
#include <libdill.h> int tcp_done( int s, int64_t deadline);
TCP protocol is a reliable bytestream protocol for transporting data over network. It is defined in RFC 793.
This function closes the outbound half of TCP connection. Technically, it sends a FIN packet to the peer. This will, in turn, cause the peer to get EPIPE error after it has received all the data.
s: The TCP connection handle.
deadline: A point in time when the operation should time out, in milliseconds. Use the now function to get your current point in time. 0 means immediate timeout, i.e., perform the operation if possible or return without blocking if not. -1 means no deadline, i.e., the call will block forever if the operation cannot be performed.
This function is not available if libdill is compiled with --disable-sockets option.
In case of success the function returns 0. In case of error it returns -1 and sets errno to one of the values below.
struct ipaddr addr; ipaddr_local(&addr, NULL, 5555, 0); int ls = tcp_listen(&addr, 10); int s = tcp_accept(ls, NULL, -1); bsend(s, "ABC", 3, -1); char buf; brecv(s, buf, sizeof(buf), -1); tcp_close(s); tcp_close(ls);
brecv(3) brecvl(3) bsend(3) bsendl(3) now(3) tcp_accept(3) tcp_accept_mem(3) tcp_close(3) tcp_connect(3) tcp_connect_mem(3) tcp_listen(3) tcp_listen_mem(3)