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cope with race on available() vs read() found while looking at #838

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Kevin Hester 2021-08-12 22:06:51 -07:00
parent 9f450cb1c5
commit a9f8080ee7
1 changed files with 5 additions and 1 deletions
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6
src/mesh/StreamAPI.cpp
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@ -26,7 +26,11 @@ int32_t StreamAPI::readStream()
return recentRx ? 5 : 250; return recentRx ? 5 : 250;
} else { } else {
while (stream->available()) { // Currently we never want to block while (stream->available()) { // Currently we never want to block
uint8_t c = stream->read(); int cInt = stream->read();
if(cInt < 0)
break; // We ran out of characters (even though available said otherwise) - this can happen on rf52 adafruit arduino
uint8_t c = (uint8_t) cInt;
// Use the read pointer for a little state machine, first look for framing, then length bytes, then payload // Use the read pointer for a little state machine, first look for framing, then length bytes, then payload
size_t ptr = rxPtr; size_t ptr = rxPtr;