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ZMQ_MONITOR socket option registers a callback / event sink for changes in socket state

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This commit is contained in:
Lourens Naudé
2012-05-04 02:32:46 +01:00
parent 16ec2868c5
commit 5c6f72c17c
26 changed files with 461 additions and 13 deletions
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14
src/tcp_listener.cpp
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@@ -31,6 +31,7 @@
#include "config.hpp"
#include "err.hpp"
#include "ip.hpp"
#include "socket_base.hpp"
#ifdef ZMQ_HAVE_WINDOWS
#include "windows.hpp"
@@ -83,8 +84,10 @@ void zmq::tcp_listener_t::in_event ()
// If connection was reset by the peer in the meantime, just ignore it.
// TODO: Handle specific errors like ENFILE/EMFILE etc.
if (fd == retired_fd)
if (fd == retired_fd) {
socket->monitor_event (ZMQ_EVENT_ACCEPT_FAILED, endpoint.c_str(), zmq_errno());
return;
}
tune_tcp_socket (fd);
tune_tcp_keepalives (fd, options.tcp_keepalive, options.tcp_keepalive_cnt, options.tcp_keepalive_idle, options.tcp_keepalive_intvl);
@@ -105,6 +108,7 @@ void zmq::tcp_listener_t::in_event ()
session->inc_seqnum ();
launch_child (session);
send_attach (session, engine, false);
socket->monitor_event (ZMQ_EVENT_ACCEPTED, endpoint.c_str(), fd);
}
void zmq::tcp_listener_t::close ()
@@ -112,11 +116,16 @@ void zmq::tcp_listener_t::close ()
zmq_assert (s != retired_fd);
#ifdef ZMQ_HAVE_WINDOWS
int rc = closesocket (s);
if (unlikely (rc != SOCKET_ERROR))
socket->monitor_event (ZMQ_EVENT_CLOSE_FAILED, endpoint.c_str(), zmq_errno());
wsa_assert (rc != SOCKET_ERROR);
#else
int rc = ::close (s);
if (unlikely (rc == 0))
socket->monitor_event (ZMQ_EVENT_CLOSE_FAILED, endpoint.c_str(), zmq_errno());
errno_assert (rc == 0);
#endif
socket->monitor_event (ZMQ_EVENT_CLOSED, endpoint.c_str(), s);
s = retired_fd;
}
@@ -185,6 +194,8 @@ int zmq::tcp_listener_t::set_address (const char *addr_)
errno_assert (rc == 0);
#endif
address.to_string (endpoint);
// Bind the socket to the network interface and port.
rc = bind (s, address.addr (), address.addrlen ());
#ifdef ZMQ_HAVE_WINDOWS
@@ -209,6 +220,7 @@ int zmq::tcp_listener_t::set_address (const char *addr_)
return -1;
#endif
socket->monitor_event (ZMQ_EVENT_LISTENING, addr_, s);
return 0;
}