diff options
Diffstat (limited to 'usr/src/man/man3c')
| -rw-r--r-- | usr/src/man/man3c/Makefile | 1 | ||||
| -rw-r--r-- | usr/src/man/man3c/smt_pause.3c | 38 |
2 files changed, 39 insertions, 0 deletions
diff --git a/usr/src/man/man3c/Makefile b/usr/src/man/man3c/Makefile index 878f352ce8..768917447e 100644 --- a/usr/src/man/man3c/Makefile +++ b/usr/src/man/man3c/Makefile @@ -410,6 +410,7 @@ MANFILES= __fbufsize.3c \ sigwaitinfo.3c \ sleep.3c \ ssignal.3c \ + smt_pause.3c \ stack_getbounds.3c \ stack_inbounds.3c \ stack_setbounds.3c \ diff --git a/usr/src/man/man3c/smt_pause.3c b/usr/src/man/man3c/smt_pause.3c new file mode 100644 index 0000000000..2a890c4977 --- /dev/null +++ b/usr/src/man/man3c/smt_pause.3c @@ -0,0 +1,38 @@ +.\" +.\" This file and its contents are supplied under the terms of the +.\" Common Development and Distribution License ("CDDL"), version 1.0. +.\" You may only use this file in accordance with the terms of version +.\" 1.0 of the CDDL. +.\" +.\" A full copy of the text of the CDDL should have accompanied this +.\" source. A copy of the CDDL is also available via the Internet at +.\" http://www.illumos.org/license/CDDL. +.\" +.\" +.\" Copyright (c) 2014, Joyent, Inc. +.\" +.Dd "Dec 22, 2014" +.Dt SMT_PAUSE 3C +.Os +.Sh NAME +.Nm smt_pause +.Nd hardware-aware busy wait +.Sh SYNOPSIS +.In synch.h +.Ft void +.Fo smt_pause +.Fa void +.Fc +.Sh DESCRIPTION +The +.Fn smt_pause +function performs a busy-wait for an implementation defined period of +time. On hardware platforms that support it, it notifies the hardware +that this is occurring in an effort to minimize resource usage. This is +commonly used in the implementation of spin loops. +.Sh INTERFACE STABILITY +.Sy Committed +.Sh MT-LEVEL +.Sy MT-Safe +.Sh SEE ALSO +.Xr attributes 5 |