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d-a-v/tcpCleanup-snippet.ino

Last active January 1, 2024 09:22
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portable way to clear tcp pcb in time-wait (esp8266/Arduino) - tcpCleanup() fix for lwip2
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tcpCleanup-snippet.ino
// https://github.com/esp8266/Arduino/issues/1923
// https://github.com/esp8266/Arduino/issues/4213
// compatible with lwip-v1 and -v2
// no need for #include
struct tcp_pcb;
extern struct tcp_pcb* tcp_tw_pcbs;
extern "C" void tcp_abort (struct tcp_pcb* pcb);
void tcpCleanup ()
{
while (tcp_tw_pcbs != NULL)
{
tcp_abort(tcp_tw_pcbs);
}
}
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