svn commit: r202856 - in stable/7: lib/libc/sys share/man/man3
Xin LI
delphij at FreeBSD.org
Sat Jan 23 00:46:56 UTC 2010
Author: delphij
Date: Sat Jan 23 00:46:55 2010
New Revision: 202856
URL: http://svn.freebsd.org/changeset/base/202856
Log:
MFC r201892:
Add a set of manual pages for pthread[_attr]_[sg]etaffinity(3).
Reviewed by: davidxu
Added:
stable/7/share/man/man3/pthread_affinity_np.3
- copied unchanged from r201892, head/share/man/man3/pthread_affinity_np.3
stable/7/share/man/man3/pthread_attr_affinity_np.3
- copied unchanged from r201892, head/share/man/man3/pthread_attr_affinity_np.3
Modified:
stable/7/lib/libc/sys/cpuset.2
stable/7/lib/libc/sys/cpuset_getaffinity.2
stable/7/share/man/man3/Makefile
stable/7/share/man/man3/pthread.3
stable/7/share/man/man3/pthread_attr.3
Directory Properties:
stable/7/lib/libc/ (props changed)
stable/7/lib/libc/stdtime/ (props changed)
stable/7/share/man/man3/ (props changed)
Modified: stable/7/lib/libc/sys/cpuset.2
==============================================================================
--- stable/7/lib/libc/sys/cpuset.2 Sat Jan 23 00:43:44 2010 (r202855)
+++ stable/7/lib/libc/sys/cpuset.2 Sat Jan 23 00:46:55 2010 (r202856)
@@ -25,7 +25,7 @@
.\"
.\" $FreeBSD$
.\"
-.Dd March 29, 2008
+.Dd January 8, 2010
.Dt CPUSET 2
.Os
.Sh NAME
@@ -216,7 +216,9 @@ for allocation.
.Xr cpuset 1 ,
.Xr cpuset_getaffinity 2 ,
.Xr cpuset_setaffinity 2 ,
-.Xr CPU_SET 3
+.Xr CPU_SET 3 ,
+.Xr pthread_affinity_np 3 ,
+.Xr pthread_attr_affinity_np 3
.Sh HISTORY
The
.Nm
Modified: stable/7/lib/libc/sys/cpuset_getaffinity.2
==============================================================================
--- stable/7/lib/libc/sys/cpuset_getaffinity.2 Sat Jan 23 00:43:44 2010 (r202855)
+++ stable/7/lib/libc/sys/cpuset_getaffinity.2 Sat Jan 23 00:46:55 2010 (r202856)
@@ -25,7 +25,7 @@
.\"
.\" $FreeBSD$
.\"
-.Dd November 29, 2008
+.Dd January 8, 2010
.Dt CPUSET 2
.Os
.Sh NAME
@@ -147,7 +147,9 @@ operation.
.Xr cpuset 2 ,
.Xr cpuset_getid 2 ,
.Xr cpuset_setid 2 ,
-.Xr CPU_SET 3
+.Xr CPU_SET 3 ,
+.Xr pthread_affinity_np 3 ,
+.Xr pthread_attr_affinity_np 3
.Sh HISTORY
The
.Nm
Modified: stable/7/share/man/man3/Makefile
==============================================================================
--- stable/7/share/man/man3/Makefile Sat Jan 23 00:43:44 2010 (r202855)
+++ stable/7/share/man/man3/Makefile Sat Jan 23 00:46:55 2010 (r202856)
@@ -152,8 +152,10 @@ MLINKS+= tree.3 RB_EMPTY.3 \
.if ${MK_LIBTHR} != "no" || ${MK_LIBKSE} != "no"
PTHREAD_MAN= pthread.3 \
+ pthread_affinity_np.3 \
pthread_atfork.3 \
pthread_attr.3 \
+ pthread_attr_affinity_np.3 \
pthread_attr_get_np.3 \
pthread_attr_setcreatesuspend_np.3 \
pthread_barrierattr.3 \
@@ -215,7 +217,9 @@ PTHREAD_MAN= pthread.3 \
pthread_testcancel.3 \
pthread_yield.3
-PTHREAD_MLINKS= pthread_attr.3 pthread_attr_destroy.3 \
+PTHREAD_MLINKS= pthread_affinity_np.3 pthread_getaffinity_np.3 \
+ pthread_affinity_np.3 pthread_setaffinity_np.3
+PTHREAD_MLINKS+=pthread_attr.3 pthread_attr_destroy.3 \
pthread_attr.3 pthread_attr_getdetachstate.3 \
pthread_attr.3 pthread_attr_getguardsize.3 \
pthread_attr.3 pthread_attr_getinheritsched.3 \
@@ -235,6 +239,8 @@ PTHREAD_MLINKS= pthread_attr.3 pthread_a
pthread_attr.3 pthread_attr_setstack.3 \
pthread_attr.3 pthread_attr_setstackaddr.3 \
pthread_attr.3 pthread_attr_setstacksize.3
+PTHREAD_MLINKS+=pthread_attr_affinity_np.3 pthread_attr_getaffinity_np.3 \
+ pthread_attr_affinity_np.3 pthread_attr_setaffinity_np.3
PTHREAD_MLINKS+=pthread_barrierattr.3 pthread_barrierattr_destroy.3 \
pthread_barrierattr.3 pthread_barrierattr_getpshared.3 \
pthread_barrierattr.3 pthread_barrierattr_init.3 \
Modified: stable/7/share/man/man3/pthread.3
==============================================================================
--- stable/7/share/man/man3/pthread.3 Sat Jan 23 00:43:44 2010 (r202855)
+++ stable/7/share/man/man3/pthread.3 Sat Jan 23 00:46:55 2010 (r202856)
@@ -30,7 +30,7 @@
.\"
.\" $FreeBSD$
.\"
-.Dd October 19, 2007
+.Dd January 8, 2010
.Dt PTHREAD 3
.Os
.Sh NAME
@@ -478,7 +478,9 @@ They contain both thread-safe versions o
functions and the thread functions.
Threaded applications are linked with one of these libraries.
.Sh SEE ALSO
+.Xr pthread_affinity_np 3 ,
.Xr pthread_atfork 3 ,
+.Xr pthread_attr 3 ,
.Xr pthread_cancel 3 ,
.Xr pthread_cleanup_pop 3 ,
.Xr pthread_cleanup_push 3 ,
Copied: stable/7/share/man/man3/pthread_affinity_np.3 (from r201892, head/share/man/man3/pthread_affinity_np.3)
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ stable/7/share/man/man3/pthread_affinity_np.3 Sat Jan 23 00:46:55 2010 (r202856, copy of r201892, head/share/man/man3/pthread_affinity_np.3)
@@ -0,0 +1,157 @@
+.\"-
+.\" Copyright (c) 2010 Xin LI <delphij at FreeBSD.org>
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\" notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\" notice, this list of conditions and the following disclaimer in the
+.\" documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd January 8, 2010
+.Dt PTHREAD_AFFINITY_NP 3
+.Os
+.Sh NAME
+.Nm pthread_getaffinity_np ,
+.Nm pthread_setaffinity_np
+.Nd manage CPU affinity
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread_np.h
+.Ft int
+.Fn pthread_getaffinity_np "pthread_t td" "size_t cpusetsize" "cpuset_t *cpusetp"
+.Ft int
+.Fn pthread_setaffinity_np "pthread_t td" "size_t cpusetsize" "const cpuset_t *cpusetp"
+.Sh DESCRIPTION
+.Fn pthread_getaffinity_np
+and
+.Fn pthread_setaffinity_np
+allow the manipulation of sets of CPUs available to specified thread.
+.Pp
+Masks of type
+.Ft cpuset_t
+are composed using the
+.Xr CPU_SET 2
+macros.
+The kernel tolerates large sets as long as all CPUs specified
+in the set exist.
+Sets smaller than the kernel uses generate an error on calls to
+.Fn pthread_getaffinity_np
+even if the result set would fit within the user supplied set.
+Calls to
+.Fn pthread_setaffinity_np
+tolerate small sets with no restrictions.
+.Pp
+The supplied mask should have a size of
+.Fa cpusetsize
+bytes.
+This size is usually provided by calling
+.Li sizeof(cpuset_t)
+which is ultimately determined by the value of
+.Dv CPU_SETSIZE
+as defined in
+.In sys/cpuset.h .
+.Pp
+.Fn pthread_getaffinity_np
+retrieves the
+mask from the thread specified by
+.Fa td ,
+and stores it in the space provided by
+.Fa cpumaskp .
+.Pp
+.Fn pthread_setaffinity_np
+attempts to set the mask for the thread specified by
+.Fa td
+to the value in
+.Fa cpumaskp .
+.Pp
+.Sh RETURN VALUES
+If successful, the
+.Fn pthread_getaffinity_np
+and
+.Fn pthread_setaffinity_np
+functions will return zero.
+Otherwise an error number will be returned
+to indicate the error.
+.Sh ERRORS
+The
+.Fn pthread_getaffinity_np
+and
+.Fn pthread_setaffinity_np
+functions may fail if:
+.Bl -tag -width Er
+.It Bq Er EDEADLK
+The
+.Fn pthread_setaffinity_np
+call would leave a thread without a valid CPU to run on because the set
+does not overlap with the thread's anonymous mask.
+.It Bq Er EFAULT
+The
+.Fa cpumaskp
+pointer passed was invalid.
+.It Bq Er ESRCH
+The thread specified by the
+.Fa td
+argument could not be found.
+.It Bq Er ERANGE
+The
+.Fa cpusetsize
+was either preposterously large or smaller than the kernel set size.
+.It Bq Er EPERM
+The calling thread did not have the credentials required to complete the
+operation.
+.El
+.Sh SEE ALSO
+.Xr cpuset 1 ,
+.Xr cpuset 2 ,
+.Xr cpuset_getid 2 ,
+.Xr cpuset_setid 2 ,
+.Xr CPU_SET 3 ,
+.Xr pthread 3 ,
+.Xr pthread_attr_get_affinity_np 3 ,
+.Xr pthread_attr_set_affinity_np 3 .
+.Sh STANDARDS
+The
+.Nm pthread_getaffinity_np
+and
+.Nm pthread_setaffinity_np
+functions are non-standard
+.Fx
+extensions and may be not available on other operating systems.
+.Sh HISTORY
+The
+.Nm pthread_getaffinity_np
+and
+.Nm pthread_setaffinity_np
+function first appeared in
+.Fx 7.2 .
+.Sh AUTHORS
+.An -nosplit
+The
+.Nm pthread_getaffinity_np
+and
+.Nm pthread_setaffinity_np
+functions were written by
+.An David Xu
+.Aq davidxu at FreeBSD.org ,
+and this manpage was written by
+.An Xin LI
+.Aq delphij at FreeBSD.org .
Modified: stable/7/share/man/man3/pthread_attr.3
==============================================================================
--- stable/7/share/man/man3/pthread_attr.3 Sat Jan 23 00:43:44 2010 (r202855)
+++ stable/7/share/man/man3/pthread_attr.3 Sat Jan 23 00:46:55 2010 (r202856)
@@ -26,7 +26,7 @@
.\" EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
.\"
.\" $FreeBSD$
-.Dd April 28, 2000
+.Dd January 8, 2010
.Dt PTHREAD_ATTR 3
.Os
.Sh NAME
@@ -209,9 +209,9 @@ Invalid or unsupported value for
.El
.Sh SEE ALSO
.Xr pthread_attr_get_np 3 ,
+.Xr pthread_attr_affinity_np 3 ,
.Xr pthread_create 3
.Sh STANDARDS
-The
.Fn pthread_attr_init ,
.Fn pthread_attr_destroy ,
.Fn pthread_attr_setstacksize ,
Copied: stable/7/share/man/man3/pthread_attr_affinity_np.3 (from r201892, head/share/man/man3/pthread_attr_affinity_np.3)
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ stable/7/share/man/man3/pthread_attr_affinity_np.3 Sat Jan 23 00:46:55 2010 (r202856, copy of r201892, head/share/man/man3/pthread_attr_affinity_np.3)
@@ -0,0 +1,150 @@
+.\"-
+.\" Copyright (c) 2010 Xin LI <delphij at FreeBSD.org>
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\" notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\" notice, this list of conditions and the following disclaimer in the
+.\" documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd January 8, 2010
+.Dt PTHREAD_ATTR_AFFINITY_NP 3
+.Os
+.Sh NAME
+.Nm pthread_attr_getaffinity_np ,
+.Nm pthread_attr_setaffinity_np
+.Nd manage CPU affinity in thread attribute object
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread_np.h
+.Ft int
+.Fn pthread_attr_getaffinity_np "const pthread_attr_t *pattr" "size_t cpusetsize" "cpuset_t *cpusetp"
+.Ft int
+.Fn pthread_attr_setaffinity_np "pthread_attr_t *pattr" "size_t cpusetsize" "const cpuset_t *cpusetp"
+.Sh DESCRIPTION
+.Fn pthread_attr_getaffinity_np
+and
+.Fn pthread_attr_setaffinity_np
+allow the manipulation of sets of CPUs available to specified thread attribute object.
+.Pp
+Masks of type
+.Ft cpuset_t
+are composed using the
+.Xr CPU_SET 2
+macros.
+The kernel tolerates large sets as long as all CPUs specified
+in the set exist.
+Sets smaller than the kernel uses generate an error on calls to
+.Fn pthread_attr_getaffinity_np
+even if the result set would fit within the user supplied set.
+Calls to
+.Fn pthread_attr_setaffinity_np
+tolerate small sets with no restrictions.
+.Pp
+The supplied mask should have a size of
+.Fa cpusetsize
+bytes.
+This size is usually provided by calling
+.Li sizeof(cpuset_t)
+which is ultimately determined by the value of
+.Dv CPU_SETSIZE
+as defined in
+.In sys/cpuset.h .
+.Pp
+.Fn pthread_attr_getaffinity_np
+retrieves the
+mask from the thread attribute object specified by
+.Fa pattr ,
+and stores it in the space provided by
+.Fa cpumaskp .
+.Pp
+.Fn pthread_attr_setaffinity_np
+set the mask for the thread attribute object specified by
+.Fa pattr
+to the value in
+.Fa cpumaskp .
+.Pp
+.Sh RETURN VALUES
+If successful, the
+.Fn pthread_attr_getaffinity_np
+and
+.Fn pthread_attr_setaffinity_np
+functions will return zero.
+Otherwise an error number will be returned
+to indicate the error.
+.Sh ERRORS
+The
+.Fn pthread_attr_getaffinity_np
+and
+.Fn pthread_attr_setaffinity_np
+functions will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The
+.Fa pattr
+or the attribute specified by it is NULL.
+.El
+.Pp
+The
+.Fn pthread_attr_setaffinity_np
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The
+.Fa pattr
+or the attribute specified by it is NULL.
+.It Bq Er ENOMEM
+Insufficient memory exists to store the cpuset mask.
+.El
+.Sh SEE ALSO
+.Xr cpuset 1 ,
+.Xr cpuset 2 ,
+.Xr cpuset_getid 2 ,
+.Xr cpuset_setid 2 ,
+.Xr CPU_SET 3 ,
+.Xr pthread_get_affinity_np 3 ,
+.Xr pthread_set_affinity_np 3 .
+.Sh STANDARDS
+The
+.Nm pthread_attr_getaffinity_np
+and
+.Nm pthread_attr_setaffinity_np
+functions are non-standard
+.Fx
+extensions and may be not available on other operating systems.
+.Sh HISTORY
+The
+.Nm pthread_attr_getaffinity_np
+and
+.Nm pthread_attr_setaffinity_np
+functions first appeared in
+.Fx 7.2 .
+.Sh AUTHORS
+.An -nosplit
+The
+.Nm pthread_attr_getaffinity_np
+and
+.Nm pthread_attr_setaffinity_np
+functions were written by
+.An David Xu Aq davidxu at FreeBSD.org ,
+and this manpage was written by
+.An Xin LI Aq delphij at FreeBSD.org .
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