static void ss_stream_notify(void *opaque)
{
SlaveBootInt *s = SBI(opaque);
uint32_t num = 0;
uint8_t *data;
while (stream_can_push(s->tx_dev, ss_stream_notify, s)) {
if (fifo_is_empty(&s->fifo)) {
break;
}
/* num is equal to number of bytes read as its a fifo of width 1byte.
* the same dosent holds good if width is grater than 1 byte
*/
data = (uint8_t *) fifo_pop_buf(&s->fifo,
4, &num);
stream_push(s->tx_dev, data, num, 0);
}
ss_update_busy_line(s);
sbi_update_irq(s);
}
bool message_to_stream(uint32_t streamid, stream_t *stream, void *userdata)
{
struct topic_message *tm = (struct topic_message *)userdata;
char *s = NULL;
LOG_DEBUG("rx check: %s %s", stream->topic_patt, tm->topic);
if (topic_match_string(stream->topic_patt, tm->topic))
{
size_t len;
LOG_DEBUG("%s:%s -> stream %u", tm->topic, tm->msg, streamid);
len = strlen(tm->topic)*2 + strlen(tm->msg)*2 + 8; // {"":""} + null // FIXME
if (NULL == (s = (char *)malloc(len)))
LOG_ERROR("out of mem");
else
{
uint32_t connid;
ebb_connection_info *conninfo = NULL;
bool connected;
connected = stream_get_connection(stream, &connid);
if (connected)
{
if (NULL == (conninfo = httpd_get_conninfo(connid)))
{
LOG_ERROR("bad connid");
return false;
}
if (conninfo->finished) // if conn is in process of closing,
connected = false;
}
if (conninfo && conninfo->rawmode)
{
// just the data
memcpy(s, tm->msg, strlen(tm->msg)+1);
}
else
{
// wrapped in JSON obj
cJSON *mj = NULL;
char *msgesc;
char *topicesc;
if (NULL == (topicesc = json_escape(tm->topic)))
{
conninfo->http_status = 503;
httpd_close(connid);
return false;
}
if (tm->msg[0] == 0)
{
snprintf(s, len, "{%s:\"\"}", topicesc);
}
else
if (0==strcmp(tm->msg, "inf"))
{
snprintf(s, len, "{%s:\"inf\"}", topicesc);
}
else
if (NULL != (mj = cJSON_Parse(tm->msg)))
{
snprintf(s, len, "{%s:%s}", topicesc, cJSON_PrintUnformatted(mj));
cJSON_Delete(mj);
}
else
{
if (NULL == (msgesc = json_escape(tm->msg)))
{
conninfo->http_status = 503;
httpd_close(connid);
free(topicesc);
return false;
}
else
{
snprintf(s, len, "{%s:%s}", topicesc, msgesc);
free(msgesc);
}
}
free(topicesc);
}
if (0 != stream_push(stream, s))
LOG_ERROR("stream_push %u failed", streamid);
else
{
if (connected)
{
if (!conninfo->rawmode)
httpd_printf(connid, "[");
stream_drain(stream, stream_drainer, (void *)(uintptr_t)connid);
if (!conninfo->rawmode)
httpd_printf(connid, "]");
stream_clear_connection(stream);
httpd_close(connid);
}
else
{
LOG_DEBUG("streamid %u not connected", stream->streamid);
}
}
}
}
if (NULL != s)
free(s);
return false;
}
