static void sdpc_trysend()
{
uint8_t buf[128];
if (state != SENDING) return;
if (!l2cap_cid) return;
if (!l2cap_can_send_packet_now(l2cap_cid)) return;
buf[0] = SDP_ServiceSearchAttributeRequest;
net_store_16(buf, 1, transitionid++);
uint8_t *param = &buf[5];
de_create_sequence(param);
de_add_number(param, DE_UUID, DE_SIZE_16, serviceids[current_server]);
uint16_t size = de_get_len(param);
net_store_16(param, size, 30); // max length is 30 bytes
size+=2;
de_create_sequence(param + size);
//de_add_number(param + size, DE_UINT, DE_SIZE_16, SDP_ServiceClassIDList);
de_add_number(param + size, DE_UINT, DE_SIZE_16, SDP_ProtocolDescriptorList);
size += de_get_len(param + size);
param[size++] = 0;
net_store_16(buf, 3, size);
hexdump(buf, size + 5);
int err = l2cap_send_internal(l2cap_cid, buf, size + 5);
if (!err)
{
state = RECV;
log_info("sdp request sent.\n");
}
else
{
log_info("sdpc_trysend l2cap_send_internal error: %d\n", err);
}
}
static void sdp_try_respond(void) {
if (!sdp_response_size ) return;
if (!l2cap_cid) return;
if (!l2cap_can_send_packet_now(l2cap_cid)) return;
// update state before sending packet (avoid getting called when new l2cap credit gets emitted)
uint16_t size = sdp_response_size;
sdp_response_size = 0;
l2cap_send_internal(l2cap_cid, sdp_response_buffer, size);
}
static int can_send_now(uint16_t channel){
if (sdp_client_state != W2_SEND) return 0;
if (!l2cap_can_send_packet_now(channel)) return 0;
return 1;
}
