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/*
* lws-minimal-secure-streams-server
*
* Written in 2010-2020 by Andy Green <andy@warmcat.com>
*
* This file is made available under the Creative Commons CC0 1.0
* Universal Public Domain Dedication.
*/
#include <libwebsockets.h>
#include <assert.h>
extern int interrupted, bad;
typedef struct myss {
struct lws_ss_handle *ss;
void *opaque_data;
/* ... application specific state ... */
lws_sorted_usec_list_t sul;
int count;
char upgraded;
} myss_srv_t;
/*
* This is the Secure Streams Server RX and TX
*/
static lws_ss_state_return_t
myss_raw_rx(void *userobj, const uint8_t *buf, size_t len, int flags)
{
// myss_srv_t *m = (myss_srv_t *)userobj;
lwsl_user("%s: len %d, flags: %d\n", __func__, (int)len, flags);
lwsl_hexdump_info(buf, len);
/*
* If we received the whole message, for our example it means
* we are done.
*/
if (flags & LWSSS_FLAG_EOM) {
bad = 0;
interrupted = 1;
}
return 0;
}
/* this is the callback that mediates sending the incrementing number */
static void
spam_sul_cb(struct lws_sorted_usec_list *sul)
{
myss_srv_t *m = lws_container_of(sul, myss_srv_t, sul);
if (!lws_ss_request_tx(m->ss))
lws_sul_schedule(lws_ss_get_context(m->ss), 0, &m->sul, spam_sul_cb,
100 * LWS_US_PER_MS);
}
static lws_ss_state_return_t
myss_raw_tx(void *userobj, lws_ss_tx_ordinal_t ord, uint8_t *buf, size_t *len,
int *flags)
{
myss_srv_t *m = (myss_srv_t *)userobj;
*flags = LWSSS_FLAG_SOM | LWSSS_FLAG_EOM;
*len = (unsigned int)lws_snprintf((char *)buf, *len, "hello from raw %d\n", m->count++);
lws_sul_schedule(lws_ss_get_context(m->ss), 0, &m->sul, spam_sul_cb,
100 * LWS_US_PER_MS);
return 0;
}
static lws_ss_state_return_t
myss_raw_state(void *userobj, void *sh, lws_ss_constate_t state,
lws_ss_tx_ordinal_t ack)
{
myss_srv_t *m = (myss_srv_t *)userobj;
lwsl_user("%s: %p %s, ord 0x%x\n", __func__, m->ss,
lws_ss_state_name((int)state), (unsigned int)ack);
switch (state) {
case LWSSSCS_DISCONNECTED:
lws_sul_cancel(&m->sul);
break;
case LWSSSCS_CONNECTED:
return lws_ss_request_tx(m->ss);
default:
break;
}
return 0;
}
const lws_ss_info_t ssi_server = {
.handle_offset = offsetof(myss_srv_t, ss),
.opaque_user_data_offset = offsetof(myss_srv_t, opaque_data),
.streamtype = "myrawserver",
.rx = myss_raw_rx,
.tx = myss_raw_tx,
.state = myss_raw_state,
.user_alloc = sizeof(myss_srv_t),
};
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