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really filter empty/credit-only packets

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This commit is contained in:
matthias.ringwald 2011-06-17 20:42:18 +00:00
parent 761b0451dd
commit 0dcf44e46d
1 changed files with 23 additions and 23 deletions
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46
src/rfcomm.c
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@ -863,30 +863,30 @@ static void rfcomm_channel_packet_handler_uih(rfcomm_multiplexer_t *multiplexer,
const uint8_t payload_offset = 3 + length_offset + credit_offset;
rfcomm_channel_t * rfChannel = rfcomm_channel_for_multiplexer_and_dlci(multiplexer, frame_dlci);
if (rfChannel) {
if (packet[1] == BT_RFCOMM_UIH_PF) {
// handle new credits
uint16_t new_credits = packet[3+length_offset];
rfChannel->credits_outgoing += new_credits;
if (rfChannel->state == RFCOMM_CHANNEL_W4_CREDITS){
log_dbg("BT_RFCOMM_UIH_PF for #%u, Got %u credits => can send!\n", frame_dlci, new_credits);
rfcomm_channel_opened(rfChannel);
}
if (!rfChannel) return;
if (packet[1] == BT_RFCOMM_UIH_PF) {
// handle new credits
uint16_t new_credits = packet[3+length_offset];
rfChannel->credits_outgoing += new_credits;
if (rfChannel->state == RFCOMM_CHANNEL_W4_CREDITS){
log_dbg("BT_RFCOMM_UIH_PF for #%u, Got %u credits => can send!\n", frame_dlci, new_credits);
rfcomm_channel_opened(rfChannel);
}
if (rfChannel->credits_incoming > 0){
rfChannel->credits_incoming--;
}
rfcomm_channel_provide_credits(rfChannel);
if (size > payload_offset - 1){ // don't send empty frames, -1 for header checksum at end
// log_dbg( "RFCOMM data UIH_PF, size %u, channel %x\n", size-payload_offset, (int) rfChannel->connection);
(*app_packet_handler)(rfChannel->connection, RFCOMM_DATA_PACKET, rfChannel->rfcomm_cid,
&packet[payload_offset], size-payload_offset-1);
}
// we received new RFCOMM credits, hand them out if possible
rfcomm_hand_out_credits();
}
if (rfChannel->credits_incoming > 0){
rfChannel->credits_incoming--;
}
rfcomm_channel_provide_credits(rfChannel);
if (size - 1 > payload_offset){ // don't send empty frames, -1 for header checksum at end
log_dbg( "RFCOMM data UIH_PF, size %u, channel %x\n", size-payload_offset-1, (int) rfChannel->connection);
(*app_packet_handler)(rfChannel->connection, RFCOMM_DATA_PACKET, rfChannel->rfcomm_cid,
&packet[payload_offset], size-payload_offset-1);
}
// we received new RFCOMM credits, hand them out if possible
rfcomm_hand_out_credits();
}
void rfcomm_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){
@ -1288,7 +1288,7 @@ int rfcomm_send_internal(uint8_t rfcomm_cid, uint8_t *data, uint16_t len){
return 0;
}
log_dbg("rfcomm_send_internal: ... outgoing credits %u\n", channel->credits_outgoing);
log_dbg("rfcomm_send_internal: len %u... outgoing credits %u\n", len, channel->credits_outgoing);
if (!channel->credits_outgoing){
log_err("rfcomm_send_internal cid %u, no rfcomm outgoing credits!\n", rfcomm_cid);