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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.
*/
/* Simple echo daemon, designed to be used for network throughput
* benchmarks. The aim is to allow us to monitor changes in performance
* of APR networking code, nothing more.
*/
#include <stdio.h>
#include <stdlib.h> /* for atexit() */
#include "apr.h"
#include "apr_network_io.h"
#include "apr_strings.h"
#define BUF_SIZE 4096
static void reportError(const char *msg, apr_status_t rv,
apr_pool_t *pool)
{
fprintf(stderr, "%s\nError: %d\n'%s'\n", msg, rv,
apr_psprintf(pool, "%pm", &rv));
}
static apr_status_t talkTalk(apr_socket_t *socket, apr_pool_t *parent)
{
apr_pool_t *pool;
apr_size_t len;
char *buf;
apr_status_t rv;
if (apr_pool_create(&pool, parent) != APR_SUCCESS)
return APR_ENOPOOL;
buf = apr_palloc(pool, BUF_SIZE);
if (!buf)
return ENOMEM;
do {
len = BUF_SIZE;
rv = apr_socket_recv(socket, buf, &len);
if (APR_STATUS_IS_EOF(rv) || len == 0 || rv != APR_SUCCESS)
break;
rv = apr_socket_send(socket, buf, &len);
if (len == 0 || rv != APR_SUCCESS)
break;
} while (rv == APR_SUCCESS);
apr_pool_clear(pool);
return APR_SUCCESS;
}
static apr_status_t glassToWall(apr_int16_t port, apr_pool_t *parent)
{
apr_sockaddr_t *sockAddr;
apr_socket_t *listener, *accepted;
apr_status_t rv;
rv = apr_socket_create(&listener, APR_INET, SOCK_STREAM, APR_PROTO_TCP,
parent);
if (rv != APR_SUCCESS) {
reportError("Unable to create socket", rv, parent);
return rv;
}
rv = apr_sockaddr_info_get(&sockAddr, "127.0.0.1", APR_UNSPEC,
port, 0, parent);
if (rv != APR_SUCCESS) {
reportError("Unable to get socket info", rv, parent);
apr_socket_close(listener);
return rv;
}
if ((rv = apr_socket_bind(listener, sockAddr)) != APR_SUCCESS ||
(rv = apr_socket_listen(listener, 5)) != APR_SUCCESS) {
reportError("Unable to bind or listen to socket", rv, parent);
apr_socket_close(listener);
return rv;
}
for (;;) {
rv = apr_socket_accept(&accepted, listener, parent);
if (rv != APR_SUCCESS) {
reportError("Error accepting on socket", rv, parent);
break;
}
printf("\tAnswering connection\n");
rv = talkTalk(accepted, parent);
apr_socket_close(accepted);
printf("\tConnection closed\n");
if (rv != APR_SUCCESS)
break;
}
apr_socket_close(listener);
return APR_SUCCESS;
}
int main(int argc, char **argv)
{
apr_pool_t *pool;
apr_status_t rv;
apr_int16_t theport = 4747;
printf("APR Test Application: echod\n");
apr_initialize();
atexit(apr_terminate);
apr_pool_create(&pool, NULL);
if (argc >= 2) {
printf("argc = %d, port = '%s'\n", argc, argv[1]);
theport = atoi(argv[1]);
}
fprintf(stdout, "Starting to listen on port %d\n", theport);
rv = glassToWall(theport, pool);
return 0;
}
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