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Remote close() caused null reference in write #107

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Remote close() caused null reference in write #107

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18 changes: 10 additions & 8 deletions src/ESPAsyncTCPbuffer.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -330,7 +330,7 @@ void AsyncTCPbuffer::_sendBuffer() {
return;
}

while((_client->space() > 0) && (_TXbufferRead->available() > 0) && _client->canSend()) {
while(_client != NULL && (_client->space() > 0) && (_TXbufferRead->available() > 0) && _client->canSend()) {

available = _TXbufferRead->available();

Expand All @@ -347,14 +347,16 @@ void AsyncTCPbuffer::_sendBuffer() {
// read data from buffer
_TXbufferRead->peek(out, available);

// send data
size_t send = _client->write((const char*) out, available);
if(send != available) {
DEBUG_ASYNC_TCP("[A-TCP] write failed send: %d available: %d \n", send, available);
}
if (_client) {
// send data
size_t send = _client->write((const char*) out, available);
if(send != available) {
DEBUG_ASYNC_TCP("[A-TCP] write failed send: %d available: %d \n", send, available);
}

// remove really send data from buffer
_TXbufferRead->remove(send);
// remove really send data from buffer
_TXbufferRead->remove(send);
}

// if buffer is empty and there is a other buffer in chain delete the empty one
if(_TXbufferRead->available() == 0 && _TXbufferRead->next != NULL) {
Expand Down