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some old glibc may define MSG_ZEROCOPY but not SO_ZEROCOPY :-(

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leitner 2020-04-05 20:19:25 +00:00
parent 261420b7b6
commit 8b0450cd29
1 changed files with 1 additions and 1 deletions
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2
io/iob_send.c
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@ -234,7 +234,7 @@ eagain:
else else
sent=writev(s,v,headers); sent=writev(s,v,headers);
} else { } else {
#ifdef MSG_ZEROCOPY #if defined(MSG_ZEROCOPY) && defined(SO_ZEROCOPY)
if (!nozerocopy && sum>=8*1024) { if (!nozerocopy && sum>=8*1024) {
/* MSG_ZEROCOPY has page table management overhead, /* MSG_ZEROCOPY has page table management overhead,
* it only pays off after 8k or so */ * it only pays off after 8k or so */