Improving TLS communication with a timer - #768
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lavv17
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Oct 31, 2025
| if(conn && conn->data_sock!=-1) | ||
| if(conn && conn->data_sock!=-1) { | ||
| SetSocketBuffer(conn->data_sock); | ||
| SetTCPNodelay(conn->data_sock); |
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Does it always give good results? Measured?
lavv17
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Oct 31, 2025
| goodbye_done = true; | ||
| return DONE; | ||
| if (!ssl_shutdown_timer) { | ||
| ssl_shutdown_timer = new Timer(0, 200); |
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Is 200 ms always enough? Maybe 1 sec is a better default. And a setting would be nice to have.
lavv17
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Oct 31, 2025
| } else if (res == GNUTLS_E_AGAIN || res == GNUTLS_E_INTERRUPTED) { | ||
| /* In ideal world we would not need this if, but windows does not | ||
| * send close-notify, so do not wait on server close-notify */ | ||
| if (gnutls_record_get_direction(session) == 0) { |
lavv17
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Oct 31, 2025
| ProtoLog::LogError(1,"setsockopt(TCP_MAXSEG,%d): %s",socket_maxseg,strerror(errno)); | ||
| #endif | ||
| } | ||
| void Networker::SetTCPNodelay(int sock) |
| res = gnutls_bye(session,GNUTLS_SHUT_RDWR); | ||
| if (res == GNUTLS_E_SUCCESS) { | ||
| if (ssl_shutdown_timer) { | ||
| ssl_shutdown_timer->Stop(); |
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better delete the timer, it will not be needed anymore
| #define BUFFER_SSL_H | ||
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| #include "buffer.h" | ||
| #include "Timer.h" |
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Adding a bit of code on top of #754 . This following change is also authored by Tomas from the previous PR. Some TLS implementations do not send close_notify and we could wait indefinitely for something that never happens.
Also, setting the socket flags to TCP_NODELAY which basically disables the Nagle algorithm.