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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Note: This file has been modified from its original form.
*/
#include <log4cxx/helpers/serversocket.h>
#include <log4cxx/helpers/synchronized.h>
#include "apr_network_io.h"
#include "apr_pools.h"
#include "apr_poll.h"
using namespace log4cxx::helpers;
/** Creates a server socket on a specified port.
*/
ServerSocket::ServerSocket(int port) : pool(), mutex(pool), socket(0), timeout(0)
{
apr_status_t status =
apr_socket_create(&socket, APR_INET, SOCK_STREAM,
APR_PROTO_TCP, pool.getAPRPool());
if (status != APR_SUCCESS) {
throw SocketException(status);
}
status = apr_socket_opt_set(socket, APR_SO_NONBLOCK, 1);
if (status != APR_SUCCESS) {
throw SocketException(status);
}
// AKirov: Added SO_REUSEADDR option to fix APPLINK-15273
status = apr_socket_opt_set(socket, APR_SO_REUSEADDR, 1);
if (status != APR_SUCCESS) {
throw SocketException(status);
}
// Create server socket address (including port number)
apr_sockaddr_t *server_addr;
status =
apr_sockaddr_info_get(&server_addr, NULL, APR_INET,
port, 0, pool.getAPRPool());
if (status != APR_SUCCESS) {
throw ConnectException(status);
}
// bind the socket to the address
status = apr_socket_bind(socket, server_addr);
if (status != APR_SUCCESS) {
throw BindException(status);
}
status = apr_socket_listen(socket, 50);
if (status != APR_SUCCESS) {
throw SocketException(status);
}
}
ServerSocket::~ServerSocket()
{
}
void ServerSocket::close() {
synchronized sync(mutex);
if (socket != 0) {
apr_status_t status = apr_socket_close(socket);
if (status != APR_SUCCESS) {
throw SocketException(status);
}
socket = 0;
}
}
/** Listens for a connection to be made to this socket and
accepts it
*/
SocketPtr ServerSocket::accept() {
synchronized sync(mutex);
if (socket == 0) {
throw IOException();
}
apr_pollfd_t poll;
poll.p = pool.getAPRPool();
poll.desc_type = APR_POLL_SOCKET;
poll.reqevents = APR_POLLIN;
poll.rtnevents = 0;
poll.desc.s = socket;
poll.client_data = NULL;
apr_int32_t signaled;
apr_interval_time_t to = timeout * 1000;
apr_status_t status = apr_poll(&poll, 1, &signaled, to);
if (APR_STATUS_IS_TIMEUP(status)) {
throw SocketTimeoutException();
} else if (status != APR_SUCCESS) {
throw SocketException(status);
}
apr_pool_t* newPool;
status = apr_pool_create(&newPool, 0);
if (status != APR_SUCCESS) {
throw PoolException(status);
}
apr_socket_t* newSocket;
status = apr_socket_accept(&newSocket, socket, newPool);
if (status != APR_SUCCESS) {
apr_pool_destroy(newPool);
throw SocketException(status);
}
status = apr_socket_opt_set(newSocket, APR_SO_NONBLOCK, 0);
if (status != APR_SUCCESS) {
apr_pool_destroy(newPool);
throw SocketException(status);
}
// Added 5 seconds timeout to fix endless blocking on write() when the client is not reading
status = apr_socket_timeout_set(newSocket, 5000000);
if (status != APR_SUCCESS) {
apr_pool_destroy(newPool);
throw SocketException(status);
}
return new Socket(newSocket, newPool);
}
/** Retrive setting for SO_TIMEOUT.
*/
int ServerSocket::getSoTimeout() const
{
return timeout;
}
/** Enable/disable SO_TIMEOUT with the specified timeout, in milliseconds.
*/
void ServerSocket::setSoTimeout(int newVal)
{
timeout = newVal;
}
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