#
# Copyright 2013 Jean-Philippe Caissy <jpcaissy@piji.ca>
# Copyright 2014 Alexis Laferrière <alexis.laf@xymus.net>
+# Copyright 2018 Matthieu Le Guellaut <leguellaut.matthieu@gmail.com>
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
#include <arpa/inet.h>
#include <netinet/in.h>
#include <netinet/ip.h>
+ #include <sys/un.h>
+ #include <unistd.h>
// Protect callbacks for compatibility with light FFI
#ifdef Connection_decr_ref
end
# Spawned to manage a specific connection
-#
-# TODO, use polls
class Connection
super Writer
`}
# Write the byte `value`
- fun write_byte(value: Byte): Int `{
+ fun write_byte(value: Int): Int `{
unsigned char byt = (unsigned char)value;
return bufferevent_write(self, &byt, 1);
`}
private new bind_to(base: NativeEventBase, address: CString, port: Int, factory: ConnectionFactory)
import ConnectionFactory.accept_connection, error_callback `{
- struct sockaddr_in sin;
- struct evconnlistener *listener;
ConnectionFactory_incr_ref(factory);
struct hostent *hostent = gethostbyname(address);
-
if (!hostent) {
return NULL;
}
- memset(&sin, 0, sizeof(sin));
+ struct sockaddr_in sin = {0};
sin.sin_family = hostent->h_addrtype;
sin.sin_port = htons(port);
memcpy( &(sin.sin_addr.s_addr), (const void*)hostent->h_addr, hostent->h_length );
- listener = evconnlistener_new_bind(base,
+ struct evconnlistener *listener = evconnlistener_new_bind(base,
(evconnlistener_cb)accept_connection_cb, factory,
LEV_OPT_CLOSE_ON_FREE | LEV_OPT_REUSEABLE, -1,
(struct sockaddr*)&sin, sizeof(sin));
+ if (listener != NULL) {
+ evconnlistener_set_error_cb(listener,
+ (evconnlistener_errorcb)ConnectionListener_error_callback);
+ }
+
+ return listener;
+ `}
+
+ private new bind_unix(base: NativeEventBase, file: CString, factory: ConnectionFactory)
+ import ConnectionFactory.accept_connection, error_callback `{
+
+ ConnectionFactory_incr_ref(factory);
+
+ struct sockaddr_un sun = {0};
+ sun.sun_family = AF_UNIX;
+ strncpy(sun.sun_path, file, sizeof(sun.sun_path) - 1);
+ struct evconnlistener *listener = evconnlistener_new_bind(base,
+ (evconnlistener_cb)accept_connection_cb, factory,
+ LEV_OPT_CLOSE_ON_FREE | LEV_OPT_REUSEABLE, -1,
+ (struct sockaddr*)&sun, sizeof(sun));
if (listener != NULL) {
- evconnlistener_set_error_cb(listener, (evconnlistener_errorcb)ConnectionListener_error_callback);
+ evconnlistener_set_error_cb(listener,
+ (evconnlistener_errorcb)ConnectionListener_error_callback);
}
return listener;
# Get the `NativeEventBase` associated to `self`
fun base: NativeEventBase `{ return evconnlistener_get_base(self); `}
- # Callback method on listening error
- fun error_callback do
+ # Callback on listening error
+ fun error_callback
+ do
var cstr = evutil_socket_error_to_string(evutil_socket_error)
- print_error "libevent error: '{cstr}'"
+ print_error "libevent error: {cstr}"
end
end
# Factory to listen on sockets and create new `Connection`
class ConnectionFactory
+
# The `NativeEventBase` for the dispatch loop of this factory
var event_base: NativeEventBase
return new Connection(buffer_event)
end
- # Listen on `address`:`port` for new connection, which will callback `spawn_connection`
+ # Listen on the TCP socket at `address`:`port` for new connections
+ #
+ # On new connections, libevent callbacks `spawn_connection`.
fun bind_to(address: String, port: Int): nullable ConnectionListener
do
- var listener = new ConnectionListener.bind_to(event_base, address.to_cstring, port, self)
+ var listener = new ConnectionListener.bind_to(
+ event_base, address.to_cstring, port, self)
+
if listener.address_is_null then
- sys.stderr.write "libevent warning: Opening {address}:{port} failed\n"
+ print_error "libevent warning: Opening {address}:{port} failed, " +
+ evutil_socket_error_to_string(evutil_socket_error).to_s
+ return null
end
+
return listener
end
- # Put string representation of source `address` into `buf`
+ # Listen on a UNIX domain socket for new connections
+ #
+ # On new connections, libevent callbacks `spawn_connection`.
+ fun bind_unix(path: String): nullable ConnectionListener
+ do
+ # Delete the socket if it already exists
+ var stat = path.file_stat
+ if stat != null and stat.is_sock then path.file_delete
+
+ var listener = new ConnectionListener.bind_unix(
+ event_base, path.to_cstring, self)
+
+ if listener.address_is_null then
+ print_error "libevent warning: Opening UNIX domain socket {path} failed, " +
+ evutil_socket_error_to_string(evutil_socket_error).to_s
+ return null
+ end
+
+ return listener
+ end
+
+ # Put a human readable string representation of `address` into `buf`
private fun addrin_to_address(address: Pointer, buf: CString, buf_len: Int): CString `{
struct sockaddr *addrin = (struct sockaddr*)address;
struct in6_addr *src = &((struct sockaddr_in6*)addrin)->sin6_addr;
return (char *)inet_ntop(addrin->sa_family, src, buf, buf_len);
}
+ else if (addrin->sa_family == AF_UNIX) {
+ struct sockaddr_un *src = (struct sockaddr_un*)addrin;
+ char *path = src->sun_path;
+ if (path == NULL) return "Unnamed UNIX domain socket";
+ if (path[0] == '\0') return "Abstract UNIX domain socket";
+ return path;
+ }
+
return NULL;
`}
end
nitlanguage / nit.git / blobdiff