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/*
* ivykis, an event handling library
* Copyright (C) 2002, 2003 Lennert Buytenhek
* Dedicated to Marija Kulikova.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version
* 2.1 as published by the Free Software Foundation.
*
* This program 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 version 2.1 for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License version 2.1 along with this program; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include <stdio.h>
#include <stdlib.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <iv.h>
#include <string.h>
#include <sys/socket.h>
struct connector {
struct sockaddr_in addr;
struct iv_fd fd;
};
static void create_connector(struct connector *conn);
static int __connect_done(struct connector *conn)
{
socklen_t len;
int ret;
len = sizeof(ret);
if (getsockopt(conn->fd.fd, SOL_SOCKET, SO_ERROR, &ret, &len) < 0) {
fprintf(stderr, "connect_done: error %d while "
"getsockopt(SO_ERROR)\n", errno);
abort();
}
if (ret == EINPROGRESS)
return 0;
if (ret)
fprintf(stderr, "blah: %s\n", strerror(ret));
#if 0
fprintf(stderr, ".");
#endif
iv_fd_unregister(&conn->fd);
close(conn->fd.fd);
return 1;
}
static void connect_done(void *c)
{
struct connector *conn = (struct connector *)c;
if (__connect_done(conn))
create_connector(conn);
}
static void create_connector(struct connector *conn)
{
int fd;
int ret;
again:
fd = socket(AF_INET, SOCK_STREAM, 0);
if (fd < 0) {
perror("socket");
exit(1);
}
IV_FD_INIT(&conn->fd);
conn->fd.fd = fd;
conn->fd.cookie = (void *)conn;
conn->fd.handler_out = connect_done;
iv_fd_register(&conn->fd);
ret = connect(fd, (struct sockaddr *)&conn->addr, sizeof(conn->addr));
if ((ret == 0 || errno != EINPROGRESS) && __connect_done(conn))
goto again;
}
int main()
{
struct sockaddr_in addr;
struct connector c[1000];
int i;
memset(&addr, 0, sizeof(addr));
addr.sin_family = AF_INET;
addr.sin_addr.s_addr = htonl(0x7f000001);
iv_init();
for (i = 0; i < sizeof(c) / sizeof(c[0]); i++) {
struct connector *conn = c + i;
conn->addr = addr;
conn->addr.sin_port = htons(20000 + i);
create_connector(conn);
}
iv_main();
iv_deinit();
return 0;
}
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