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fix: tcp_output() should always be called after tcp_write(), does not break nagle (+ doc) (#5172)

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david gauchard 2018-09-26 23:56:01 +02:00 committed by GitHub
parent 7c91eee26d
commit 775eb9b343
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1 changed files with 3 additions and 2 deletions
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libraries/ESP8266WiFi/src/include/ClientContext.h
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@ -508,10 +508,11 @@ protected:
} }
} }
if (has_written && (_sync || tcp_nagle_disabled(_pcb))) if (has_written)
{ {
// handle no-Nagle manually because of TCP_WRITE_FLAG_MORE
// lwIP's tcp_output doc: "Find out what we can send and send it" // lwIP's tcp_output doc: "Find out what we can send and send it"
// *with respect to Nagle*
// more insights: https://lists.gnu.org/archive/html/lwip-users/2017-11/msg00134.html
tcp_output(_pcb); tcp_output(_pcb);
} }