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fixed default values of TCP_SNDLOWAT and TCP_SNDQUEUELOWAT for small windows (bug #34176 select after non-blocking send times out)

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Simon Goldschmidt 2011-10-18 20:22:09 +02:00
parent 1f396946e5
commit 01839b9c14
2 changed files with 6 additions and 2 deletions
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4
CHANGELOG
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@ -69,6 +69,10 @@ HISTORY
++ Bugfixes: ++ Bugfixes:
2011-10-18: Simon Goldschmidt
* opt.h: fixed default values of TCP_SNDLOWAT and TCP_SNDQUEUELOWAT for small
windows (bug #34176 select after non-blocking send times out)
2011-10-18: Simon Goldschmidt 2011-10-18: Simon Goldschmidt
* tcp_impl.h, tcp_out.c: fixed bug #34587: TCP_BUILD_MSS_OPTION doesn't * tcp_impl.h, tcp_out.c: fixed bug #34587: TCP_BUILD_MSS_OPTION doesn't
consider netif->mtu, causes slow network consider netif->mtu, causes slow network

4
src/include/lwip/opt.h
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@ -989,7 +989,7 @@
* TCP snd_buf for select to return writable (combined with TCP_SNDQUEUELOWAT). * TCP snd_buf for select to return writable (combined with TCP_SNDQUEUELOWAT).
*/ */
#ifndef TCP_SNDLOWAT #ifndef TCP_SNDLOWAT
#define TCP_SNDLOWAT ((TCP_SND_BUF)/2) #define TCP_SNDLOWAT LWIP_MAX(((TCP_SND_BUF)/2), (2 * TCP_MSS) + 1)
#endif #endif
/** /**
@ -998,7 +998,7 @@
* this number, select returns writable (combined with TCP_SNDLOWAT). * this number, select returns writable (combined with TCP_SNDLOWAT).
*/ */
#ifndef TCP_SNDQUEUELOWAT #ifndef TCP_SNDQUEUELOWAT
#define TCP_SNDQUEUELOWAT ((TCP_SND_QUEUELEN)/2) #define TCP_SNDQUEUELOWAT LWIP_MAX(((TCP_SND_QUEUELEN)/2), 5)
#endif #endif
/** /**