147 lines
2.9 KiB
C
147 lines
2.9 KiB
C
#include <sys/socket.h>
|
|
#include <netinet/in.h>
|
|
|
|
#include <stdio.h>
|
|
#include <getopt.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#include "ustream.h"
|
|
#include "uloop.h"
|
|
#include "usock.h"
|
|
|
|
static struct uloop_fd server;
|
|
static const char *port = "10000";
|
|
struct client *next_client = NULL;
|
|
|
|
struct client {
|
|
struct sockaddr_in sin;
|
|
|
|
struct ustream_fd s;
|
|
int ctr;
|
|
};
|
|
|
|
static void client_read_cb(struct ustream *s, int bytes)
|
|
{
|
|
struct client *cl = container_of(s, struct client, s.stream);
|
|
struct ustream_buf *buf = s->r.head;
|
|
char *newline, *str;
|
|
|
|
do {
|
|
str = ustream_get_read_buf(s, NULL);
|
|
if (!str)
|
|
break;
|
|
|
|
newline = strchr(buf->data, '\n');
|
|
if (!newline)
|
|
break;
|
|
|
|
*newline = 0;
|
|
ustream_printf(s, "%s\n", str);
|
|
ustream_consume(s, newline + 1 - str);
|
|
cl->ctr += newline + 1 - str;
|
|
} while(1);
|
|
|
|
if (s->w.data_bytes > 256 && !ustream_read_blocked(s)) {
|
|
fprintf(stderr, "Block read, bytes: %d\n", s->w.data_bytes);
|
|
ustream_set_read_blocked(s, true);
|
|
}
|
|
}
|
|
|
|
static void client_close(struct ustream *s)
|
|
{
|
|
struct client *cl = container_of(s, struct client, s.stream);
|
|
|
|
fprintf(stderr, "Connection closed\n");
|
|
ustream_free(s);
|
|
close(cl->s.fd.fd);
|
|
free(cl);
|
|
}
|
|
|
|
static void client_notify_write(struct ustream *s, int bytes)
|
|
{
|
|
fprintf(stderr, "Wrote %d bytes, pending: %d\n", bytes, s->w.data_bytes);
|
|
|
|
if (s->w.data_bytes < 128 && ustream_read_blocked(s)) {
|
|
fprintf(stderr, "Unblock read\n");
|
|
ustream_set_read_blocked(s, false);
|
|
}
|
|
}
|
|
|
|
static void client_notify_state(struct ustream *s)
|
|
{
|
|
struct client *cl = container_of(s, struct client, s.stream);
|
|
|
|
if (!s->eof)
|
|
return;
|
|
|
|
fprintf(stderr, "eof!, pending: %d, total: %d\n", s->w.data_bytes, cl->ctr);
|
|
if (!s->w.data_bytes)
|
|
return client_close(s);
|
|
|
|
}
|
|
|
|
static void server_cb(struct uloop_fd *fd, unsigned int events)
|
|
{
|
|
struct client *cl;
|
|
unsigned int sl = sizeof(struct sockaddr_in);
|
|
int sfd;
|
|
|
|
if (!next_client)
|
|
next_client = calloc(1, sizeof(*next_client));
|
|
|
|
cl = next_client;
|
|
sfd = accept(server.fd, (struct sockaddr *) &cl->sin, &sl);
|
|
if (sfd < 0) {
|
|
fprintf(stderr, "Accept failed\n");
|
|
return;
|
|
}
|
|
|
|
cl->s.stream.string_data = true;
|
|
cl->s.stream.notify_read = client_read_cb;
|
|
cl->s.stream.notify_state = client_notify_state;
|
|
cl->s.stream.notify_write = client_notify_write;
|
|
ustream_fd_init(&cl->s, sfd);
|
|
next_client = NULL;
|
|
fprintf(stderr, "New connection\n");
|
|
}
|
|
|
|
static int run_server(void)
|
|
{
|
|
|
|
server.cb = server_cb;
|
|
server.fd = usock(USOCK_TCP | USOCK_SERVER | USOCK_IPV4ONLY | USOCK_NUMERIC, "127.0.0.1", port);
|
|
if (server.fd < 0) {
|
|
perror("usock");
|
|
return 1;
|
|
}
|
|
|
|
uloop_init();
|
|
uloop_fd_add(&server, ULOOP_READ);
|
|
uloop_run();
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int usage(const char *name)
|
|
{
|
|
fprintf(stderr, "Usage: %s -p <port>\n", name);
|
|
return 1;
|
|
}
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
int ch;
|
|
|
|
while ((ch = getopt(argc, argv, "p:")) != -1) {
|
|
switch(ch) {
|
|
case 'p':
|
|
port = optarg;
|
|
break;
|
|
default:
|
|
return usage(argv[0]);
|
|
}
|
|
}
|
|
|
|
return run_server();
|
|
}
|