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sys/socket.h: add MSG_ZEROCOPY from linux v4.14 

MSG_ZEROCOPY socket send flag avoids copy in the kernel
new in linux commit 52267790ef52d7513879238ca9fac22c1733e0e3
SO_ZEROCOPY socket option enables MSG_ZEROCOPY if availale
new in linux commit 76851d1212c11365362525e1e2c0a18c97478e6b
This commit is contained in:
Szabolcs Nagy 2017-11-26 22:53:48 +00:00 committed by Rich Felker
parent 404097a4ef
commit 986bc21713
1 changed files with 2 additions and 0 deletions
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include/sys/socket.h
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@ -232,6 +232,7 @@ struct linger {
#define SO_COOKIE 57
#define SCM_TIMESTAMPING_PKTINFO 58
#define SO_PEERGROUPS 59
#define SO_ZEROCOPY 60
#ifndef SOL_SOCKET
#define SOL_SOCKET 1
@ -285,6 +286,7 @@ struct linger {
#define MSG_MORE 0x8000
#define MSG_WAITFORONE 0x10000
#define MSG_BATCH 0x40000
#define MSG_ZEROCOPY 0x4000000
#define MSG_FASTOPEN 0x20000000
#define MSG_CMSG_CLOEXEC 0x40000000