1 #include <sys/socket.h>
2 #include <netinet/in.h>
13 static struct uloop_fd server
;
14 static const char *port
= "10000";
15 struct client
*next_client
= NULL
;
18 struct sockaddr_in sin
;
24 static void client_read_cb(struct ustream
*s
, int bytes
)
26 struct client
*cl
= container_of(s
, struct client
, s
.stream
);
27 struct ustream_buf
*buf
= s
->r
.head
;
31 str
= ustream_get_read_buf(s
, NULL
);
35 newline
= strchr(buf
->data
, '\n');
40 ustream_printf(s
, "%s\n", str
);
41 ustream_consume(s
, newline
+ 1 - str
);
42 cl
->ctr
+= newline
+ 1 - str
;
45 if (s
->w
.data_bytes
> 256 && !ustream_read_blocked(s
)) {
46 fprintf(stderr
, "Block read, bytes: %d\n", s
->w
.data_bytes
);
47 ustream_set_read_blocked(s
, true);
51 static void client_close(struct ustream
*s
)
53 struct client
*cl
= container_of(s
, struct client
, s
.stream
);
55 fprintf(stderr
, "Connection closed\n");
61 static void client_notify_write(struct ustream
*s
, int bytes
)
63 fprintf(stderr
, "Wrote %d bytes, pending: %d\n", bytes
, s
->w
.data_bytes
);
65 if (s
->w
.data_bytes
< 128 && ustream_read_blocked(s
)) {
66 fprintf(stderr
, "Unblock read\n");
67 ustream_set_read_blocked(s
, false);
71 static void client_notify_state(struct ustream
*s
)
73 struct client
*cl
= container_of(s
, struct client
, s
.stream
);
78 fprintf(stderr
, "eof!, pending: %d, total: %d\n", s
->w
.data_bytes
, cl
->ctr
);
80 return client_close(s
);
84 static void server_cb(struct uloop_fd
*fd
, unsigned int events
)
87 unsigned int sl
= sizeof(struct sockaddr_in
);
91 next_client
= calloc(1, sizeof(*next_client
));
94 sfd
= accept(server
.fd
, (struct sockaddr
*) &cl
->sin
, &sl
);
96 fprintf(stderr
, "Accept failed\n");
100 cl
->s
.stream
.string_data
= true;
101 cl
->s
.stream
.notify_read
= client_read_cb
;
102 cl
->s
.stream
.notify_state
= client_notify_state
;
103 cl
->s
.stream
.notify_write
= client_notify_write
;
104 ustream_fd_init(&cl
->s
, sfd
);
106 fprintf(stderr
, "New connection\n");
109 static int run_server(void)
112 server
.cb
= server_cb
;
113 server
.fd
= usock(USOCK_TCP
| USOCK_SERVER
| USOCK_IPV4ONLY
| USOCK_NUMERIC
, "127.0.0.1", port
);
120 uloop_fd_add(&server
, ULOOP_READ
);
126 static int usage(const char *name
)
128 fprintf(stderr
, "Usage: %s -p <port>\n", name
);
132 int main(int argc
, char **argv
)
136 while ((ch
= getopt(argc
, argv
, "p:")) != -1) {
142 return usage(argv
[0]);