TERM_DONE(3) libdill Library Functions TERM_DONE(3) NAME term_done - half-closes the connection SYNOPSIS #include <libdill.h> int term_done( int s, int64_t deadline); DESCRIPTION TERM is a protocol that implements clean terminal handshake between peers. When creating the protocol instance user specifies the terminal message to use. When closing the protocol, terminal messages are exchanged between peers in both directions. After the protocol shuts down the peers agree on their position in the message stream. This function sends the termination message to the peer. Afterwards, it is not possible to send more messages. However, it is still possible to re- ceiving outstanding inbound messages. s: The TERM protocol handle. deadline: A point in time when the operation should time out, in millisec- onds. Use the now function to get your current point in time. 0 means im- mediate 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-sock- ets option. RETURN VALUE In case of success the function returns 0. In case of error it returns -1 and sets errno to one of the values below. ERRORS * EBADF: Invalid handle. * ECANCELED: Current coroutine was canceled. * EIPE: The termination message was already sent. * ENOTSUP: The handle is not a TERM protocol handle. * ETIMEDOUT: Deadline was reached. EXAMPLE s = term_attach(s, "STOP", 4); ... /* Send terminal message to the peer. */ term_done(s, -1); /* Process remaining inbound messages. */ while(1) { char buf[256]; ssize_t sz = mrecv(s, buf, sizeof(buf), -1); /* Check whether terminal message was received from the peer. */ if(sz < 0 && errno == EPIPE) break; frobnicate(buff, sz); } s = term_detach(s); SEE ALSO mrecv(3) mrecvl(3) msend(3) msendl(3) now(3) term_attach(3) term_at- tach_mem(3) term_detach(3) libdill TERM_DONE(3)
NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | EXAMPLE | SEE ALSO
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