Revert "UDP support"

This reverts commit 9ba8f9a503d69b891fae38628e0038f49ed5b8a4.

1 files changed, 0 insertions, 197 deletions

diff --git a/src/udp_sender.cpp b/src/udp_sender.cpp
deleted file mode 100644
index ddcffbb..0000000
--- a/src/udp_sender.cpp
+++ /dev/null
@@ -1,197 +0,0 @@
-/*
-    Copyright (c) 2012 Martin Lucina <martin@lucina.net>
-
-    This file is part of Crossroads I/O.
-
-    Crossroads I/O is free software; you can redistribute it and/or modify it
-    under the terms of the GNU Lesser General Public License as published by
-    the Free Software Foundation; either version 3 of the License, or (at your
-    option) any later version.
-
-    Crossroads I/O is distributed in the hope that it will be useful, but
-    WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
-    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
-    License for more details.
-
-    You should have received a copy of the GNU Lesser General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
-*/
-
-#include "platform.hpp"
-
-#include <stdlib.h>
-
-#include "io_thread.hpp"
-#include "udp_sender.hpp"
-#include "session_base.hpp"
-#include "err.hpp"
-#include "wire.hpp"
-#include "stdint.hpp"
-#include "ip.hpp"
-
-xs::udp_sender_t::udp_sender_t (io_thread_t *parent_,
-      const options_t &options_) :
-    io_object_t (parent_),
-    options (options_),
-    encoder (0),
-    seq_no (1),
-    backoff_timer (NULL)
-{
-}
-
-xs::udp_sender_t::~udp_sender_t ()
-{
-    if (backoff_timer) {
-        rm_timer (backoff_timer);
-    }
-}
-
-int xs::udp_sender_t::init (const char *address_)
-{
-    int rc;
-
-    rc = address_resolve_tcp (&address, address_, false, options.ipv4only);
-    if (rc != 0)
-        return rc;
-
-    //  Create a connected UDP socket for a single peer, and make
-    //  it non-blocking.
-    socket = open_socket (address.ss_family, SOCK_DGRAM, IPPROTO_UDP);
-    if (socket == -1)
-        return -1;
-    rc = ::connect (socket, (const sockaddr *)&address,
-        address_size (&address));
-    if (rc != 0)
-        return -1;
-    unblock_socket (socket);
-
-    return 0;
-}
-
-void xs::udp_sender_t::plug (io_thread_t *io_thread_, session_base_t *session_)
-{
-    session = session_;
-    encoder.set_session (session);
-
-    //  Start polling.
-    socket_handle = add_fd (socket);
-    set_pollout (socket_handle);
-
-    //  UDP cannot pass subscriptions upstream; for now just fake subscribing
-    //  to all messages.
-    msg_t msg;
-    msg.init_size (1);
-    *(unsigned char*) msg.data () = 1;
-    int rc = session_->write (&msg);
-    errno_assert (rc == 0);
-    session_->flush ();
-}
-
-void xs::udp_sender_t::unplug ()
-{
-    rm_fd (socket_handle);
-
-    session = NULL;
-}
-
-void xs::udp_sender_t::terminate ()
-{
-    unplug ();
-    delete this;
-}
-
-//  Called when our pipe is reactivated (has more data for us).
-void xs::udp_sender_t::activate_out ()
-{
-    //  Reactivate polling.
-    set_pollout (socket_handle);
-    //  Try and send more data.
-    out_event (retired_fd);
-}
-
-void xs::udp_sender_t::activate_in ()
-{
-    xs_assert (false);
-}
-
-//  Called when POLLERR is fired on the socket.
-void xs::udp_sender_t::in_event (fd_t fd_)
-{
-    //  Get the actual error code from the socket.
-    int err = 0;
-    socklen_t len = sizeof (err);
-    int rc = getsockopt (socket, SOL_SOCKET, SO_ERROR, (char *) &err, &len);
-    errno_assert (rc == 0);
-
-    //  If we got ECONNREFUSED, there is no one on the other end.
-    //  Stop sending for XS_RECONNECT_IVL milliseconds.
-    if (err == ECONNREFUSED) {
-        backoff_timer = add_timer (options.reconnect_ivl);
-        //  Polling will be re-started by timer_event ().
-        reset_pollout (socket_handle);
-        return;
-    }
-
-    //  Any other error is a bug, for now.
-    errno = err;
-    errno_assert (false);
-}
-
-//  Called when POLLOUT is fired on the socket.
-void xs::udp_sender_t::out_event (fd_t fd_)
-{
-    unsigned char *data_p = data;
-    size_t size = pgm_max_tpdu - udp_header_size;
-    int offset = 0;
-
-    //  Get one packet of data from the encoder.
-    encoder.get_data (&data_p, &size, &offset);
-    //  If there is no data in the pipe
-    if (size == 0) {
-        //  Stop polling, we will be re-started by activate_out ().
-        reset_pollout (socket_handle);
-        return;
-    }
-    assert ((size + udp_header_size) <= pgm_max_tpdu);
-
-    //  Prepare UDP header (seqno, offset).
-    unsigned char udp_header [udp_header_size];
-    put_uint32 (udp_header, seq_no);
-    put_uint16 (udp_header + 4, (uint16_t) offset);
-
-    //  Send out the message, ensuring the whole message was sent.
-    struct iovec iov[2] = {
-        { udp_header, udp_header_size },
-        { data_p, size }
-    };
-    ssize_t write_bytes = writev (socket, iov, 2);
-
-    //  If we got ECONNREFUSED, there is no one on the other end.
-    //  Drop the packet and back off for XS_RECONNECT_IVL milliseconds.
-    if (write_bytes == -1 && errno == ECONNREFUSED) {
-        backoff_timer = add_timer (options.reconnect_ivl);
-        //  Polling will be re-started by timer_event ().
-        reset_pollout (socket_handle);
-        //  Increase sequence number to ensure other end is notified of
-        //  dropped packet.
-        ++seq_no;
-        return;
-    }
-    errno_assert (write_bytes > 0);
-    assert ((size_t)write_bytes == (udp_header_size + size));
-
-    //  Packet was sent successfully, increase sequence number.
-    ++seq_no;
-}
-
-//  Called when our backoff timer expires.
-void xs::udp_sender_t::timer_event (handle_t handle_)
-{
-    xs_assert (handle_ == backoff_timer);
-    backoff_timer = NULL;
-
-    //  Re-start polling.
-    set_pollout (socket_handle);
-
-    out_event (retired_fd);
-}