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mesh: defer emit segmented message complete until queued network packet was sent

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This commit is contained in:
Matthias Ringwald 2019-10-15 23:40:11 +02:00
parent 23789d53e0
commit 1b6390081c
1 changed files with 38 additions and 5 deletions
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43
src/mesh/mesh_lower_transport.c
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@ -130,6 +130,8 @@ static uint16_t lower_transport_outgoing_seg_o;
static int lower_transport_outgoing_segment_queued;
// transmission timeout occured (while outgoing segment queued at network layer)
static int lower_transport_outgoing_transmission_timeout;
// transmission completed either fully acked or remote aborted (while outgoing segment queued at network layer)
static int lower_transport_outgoing_trasnmission_complete;
static void mesh_lower_transport_process_segment_acknowledgement_message(mesh_network_pdu_t *network_pdu){
if (lower_transport_outgoing_pdu == NULL) return;
@ -151,7 +153,11 @@ static void mesh_lower_transport_process_segment_acknowledgement_message(mesh_ne
#ifdef LOG_LOWER_TRANSPORT
printf("[+] Block Ack == 0 => Abort\n");
#endif
mesh_lower_transport_outgoing_complete();
if (lower_transport_outgoing_segment_queued){
lower_transport_outgoing_trasnmission_complete = 1;
} else {
mesh_lower_transport_outgoing_complete();
}
return;
}
if (seq_zero_pdu != seq_zero_out){
@ -171,7 +177,12 @@ static void mesh_lower_transport_process_segment_acknowledgement_message(mesh_ne
#ifdef LOG_LOWER_TRANSPORT
printf("[+] Sent complete\n");
#endif
mesh_lower_transport_outgoing_complete();
if (lower_transport_outgoing_segment_queued){
lower_transport_outgoing_trasnmission_complete = 1;
} else {
mesh_lower_transport_outgoing_complete();
}
}
}
@ -588,6 +599,10 @@ static void mesh_lower_transport_setup_segment(mesh_transport_pdu_t *transport_p
static void mesh_lower_transport_send_next_segment(void){
if (!lower_transport_outgoing_pdu) return;
#ifdef LOG_LOWER_TRANSPORT
printf("[+] Lower Transport, segmented pdu %p, seq %06x: send next segment\n", lower_transport_outgoing_pdu, mesh_transport_seq(lower_transport_outgoing_pdu));
#endif
int ctl = mesh_transport_ctl(lower_transport_outgoing_pdu);
uint16_t max_segment_len = ctl ? 8 : 12; // control 8 bytes (64 bit NetMic), access 12 bytes (32 bit NetMIC)
uint8_t seg_n = (lower_transport_outgoing_pdu->len - 1) / max_segment_len;
@ -658,10 +673,15 @@ static void mesh_lower_transport_segment_transmission_fired(void){
return;
}
#ifdef LOG_LOWER_TRANSPORT
printf("[+] Lower transport, segmented pdu %p, seq %06x: transmission fired\n", lower_transport_outgoing_pdu, mesh_transport_seq(lower_transport_outgoing_pdu) );
#endif
// send remaining segments again
mesh_lower_transport_setup_sending_segmented_pdus();
// send next segment
mesh_lower_transport_send_next_segment();}
mesh_lower_transport_send_next_segment();
}
static void mesh_lower_transport_network_pdu_sent(mesh_network_pdu_t *network_pdu){
// figure out what pdu was sent
@ -669,12 +689,23 @@ static void mesh_lower_transport_network_pdu_sent(mesh_network_pdu_t *network_pd
// single segment of segmented message?
if (lower_transport_outgoing_segment == network_pdu){
lower_transport_outgoing_segment_queued = 0;
if (lower_transport_outgoing_trasnmission_complete){
// handle complete
lower_transport_outgoing_trasnmission_complete = 0;
lower_transport_outgoing_transmission_timeout = 0;
mesh_lower_transport_outgoing_complete();
return;
}
if (lower_transport_outgoing_transmission_timeout){
// handle timeout
lower_transport_outgoing_transmission_timeout = 0;
mesh_lower_transport_segment_transmission_fired();
return;
}
// send next segment
#ifdef LOG_LOWER_TRANSPORT
printf("[+] Lower transport, segmented pdu %p, seq %06x: network pdu %p sent\n", lower_transport_outgoing_pdu, mesh_transport_seq(lower_transport_outgoing_pdu), network_pdu);
#endif
mesh_lower_transport_send_next_segment();
return;
}
@ -774,10 +805,12 @@ static void mesh_lower_transport_run(void){
break;
case MESH_PDU_TYPE_TRANSPORT:
transport_pdu = (mesh_transport_pdu_t *) pdu;
printf("[+] Lower transport, segmented pdu %p, seq %06x: run start sending now\n", transport_pdu, mesh_transport_seq(transport_pdu));
// start sending segmented pdu
lower_transport_retry_count = 2;
lower_transport_retry_count = 3;
lower_transport_outgoing_pdu = transport_pdu;
lower_transport_outgoing_transmission_timeout = 0;
lower_transport_outgoing_transmission_timeout = 0;
lower_transport_outgoing_trasnmission_complete = 0;
mesh_lower_transport_setup_block_ack(transport_pdu);
mesh_lower_transport_setup_sending_segmented_pdus();
mesh_lower_transport_send_next_segment();