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make sending loop ringbuffer to ESP32 Wifi more simple

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This commit is contained in:
Harald Barth 2022-08-09 15:25:29 +02:00
parent 76c5608181
commit ecda69ba32
1 changed files with 21 additions and 37 deletions
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58
WifiESP32.cpp
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@ -270,45 +270,29 @@ void WifiESP::loop() {
// something to write out?
clientId=outboundRing->read();
if (clientId >= 0) {
if ((unsigned int)clientId > clients.size()) {
// something is wrong with the ringbuffer position
// or client has disconnected
outboundRing->info();
if ((unsigned int)clientId < 8) {
// try to recover by reading out to nowhere
int count=outboundRing->count();
for(int i=0;i<count;i++) {
int c = outboundRing->read();
if (c < 0) {
DIAG(F("Ringread fail in discarding data for client %d at pos %d"),clientId, i);
break;
}
// We have data to send in outboundRing
// and we have a valid clientId.
// First read it out to buffer
// and then look if it can be sent because
// we can not leave it in the ring for ever
int count=outboundRing->count();
{
char buffer[count+1]; // one extra for '\0'
for(int i=0;i<count;i++) {
int c = outboundRing->read();
if (c >= 0) // Panic check, should never be false
buffer[i] = (char)c;
else {
DIAG(F("Ringread fail at %d"),i);
break;
}
outboundRing->info();
} else {
DIAG(F("No clientId where expected: Ring beyond rescue"));
}
} else {
// We have data to send in outboundRing
// and we have a valid clientId.
// First read it out to buffer
// and then look if it can be sent because
// we can not leave it in the ring for ever
int count=outboundRing->count();
{
char buffer[count+1];
for(int i=0;i<count;i++) {
int c = outboundRing->read();
if (c >= 0)
buffer[i] = (char)c;
else {
DIAG(F("Ringread fail at %d"),i);
break;
}
}
buffer[count]=0;
if(clients[clientId].ok())
clients[clientId].wifi.write(buffer,count);
// buffer filled, end with '\0' so we can use it as C string
buffer[count]='\0';
if((unsigned int)clientId <= clients.size() && clients[clientId].ok()) {
clients[clientId].wifi.write(buffer,count);
} else {
DIAG(F("Unsent(%d): %s"), clientId, buffer);
}
}
}