Date: Fri, 27 Jan 2017 17:54:25 +0000 (UTC) From: Warren Block <wblock@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-11@freebsd.org Subject: svn commit: r312892 - stable/11/lib/libc/sys Message-ID: <201701271754.v0RHsPLj011647@repo.freebsd.org>
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Author: wblock (doc committer) Date: Fri Jan 27 17:54:24 2017 New Revision: 312892 URL: https://svnweb.freebsd.org/changeset/base/312892 Log: MFC r312547: Mention sendfile(2) by popular demand. Sponsored by: iXsystems Modified: stable/11/lib/libc/sys/shm_open.2 Directory Properties: stable/11/ (props changed) Modified: stable/11/lib/libc/sys/shm_open.2 ============================================================================== --- stable/11/lib/libc/sys/shm_open.2 Fri Jan 27 16:53:53 2017 (r312891) +++ stable/11/lib/libc/sys/shm_open.2 Fri Jan 27 17:54:24 2017 (r312892) @@ -28,7 +28,7 @@ .\" .\" $FreeBSD$ .\" -.Dd January 13, 2017 +.Dd January 20, 2017 .Dt SHM_OPEN 2 .Os .Sh NAME @@ -187,6 +187,11 @@ kernel implementation explicitly include and .Xr write 2 . .Pp +.Fx +also supports zero-copy transmission of data from shared memory +objects with +.Xr sendfile 2 . +.Pp Neither shared memory objects nor their contents persist across reboots. .Pp Writes do not extend shared memory objects, so @@ -281,7 +286,8 @@ requires write permission to the shared .Xr fstat 2 , .Xr ftruncate 2 , .Xr mmap 2 , -.Xr munmap 2 +.Xr munmap 2 , +.Xr sendfile 2 .Sh STANDARDS The .Fn shm_open
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