empathicqubit/ticables-gdb-bridge
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Auto acknowledge packets from client

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This commit is contained in:
Empathic Qubit 2022-12-25 03:30:58 +01:00
parent 6fdadc45b6
commit 52e3f1630d
2 changed files with 36 additions and 16 deletions
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3
.vscode/settings.json vendored
View file

@ -5,5 +5,6 @@
"ticables.h": "c",
"vector": "c",
"random": "c"
}
},
"cmake.configureOnOpen": true
}

47
main.c
View file

@ -54,12 +54,19 @@ void retry_send(unsigned char* send, int sendCount) {
}
}
void ack() {
retry_send("+", 1);
}
void nack() {
retry_send("-", 1);
}
void retry_recv(unsigned char* recv, int recvCount) {
log(LEVEL_DEBUG, "RECEIVED %d BYTES\n", recvCount);
log(LEVEL_TRACE, "%.*s\n", recvCount, recv)
for(int c = 0; c < recvCount; c++) {
putchar(recv[c]);
}
int c = 0;
while((c += fwrite(&recv[c], 1, recvCount - c, stdout)) < recvCount);
fflush(stdout);
}
@ -128,13 +135,13 @@ int main(void) {
log(LEVEL_INFO, "INFO: Family %d, Variant %d\n", info.family, info.variant);
// FIXME Option to ignore first command or not
bool handle_acks = true;
bool handled_first_recv = false;
while(true) {
unsigned char recv[255];
unsigned char recv[1023];
unsigned char current = 0;
unsigned char recvCount = 0;
int recvCount = 0;
int c;
log(LEVEL_DEBUG, "RECEIVE PHASE\n");
@ -153,15 +160,33 @@ int main(void) {
}
} while(err);
recvCount += 2;
if(handled_first_recv) {
if(!handle_acks || handled_first_recv) {
retry_recv(recv, recvCount);
}
else {
log(LEVEL_DEBUG, "Discarded the first packet\n");
}
if(handle_acks) {
log(LEVEL_DEBUG, "Injecting an ACK\n");
ack();
handled_first_recv = true;
recvCount = 0;
continue;
}
recvCount = 0;
break;
}
else if(recvCount == 1) {
if(current == '-') {
if(!handle_acks) {
retry_recv(recv, recvCount);
}
else {
log(LEVEL_DEBUG, "Discarding a NACK\n");
}
recvCount = 0;
break;
}
@ -171,19 +196,13 @@ int main(void) {
}
}
if(!handled_first_recv) {
handled_first_recv = true;
retry_send("+", 1);
continue;
}
fd_set set;
FD_ZERO(&set);
FD_SET(0, &set);
struct timeval timeout = { 1, 0 };
log(LEVEL_DEBUG, "SEND PHASE\n");
while(select(1, &set, NULL, NULL, &timeout)) {
while(true) {
unsigned char send[255];
int sendCount = 0;