diff options
author | davidxu <davidxu@FreeBSD.org> | 2012-08-21 09:18:28 +0000 |
---|---|---|
committer | davidxu <davidxu@FreeBSD.org> | 2012-08-21 09:18:28 +0000 |
commit | 20f511dcbd59a56810ab6e205bc067abb40a0c58 (patch) | |
tree | 498782feac7da444b0f1e0b88626df83bfa3fe22 /lib/libc | |
parent | 225cbe2a015f0724358f5647a1a626ffd4ed65f1 (diff) | |
download | FreeBSD-src-20f511dcbd59a56810ab6e205bc067abb40a0c58.zip FreeBSD-src-20f511dcbd59a56810ab6e205bc067abb40a0c58.tar.gz |
Add manual pages for clock_getcpuclockid and pthread_getcpuclockid.
Diffstat (limited to 'lib/libc')
-rw-r--r-- | lib/libc/gen/Makefile.inc | 2 | ||||
-rw-r--r-- | lib/libc/gen/clock_getcpuclockid.3 | 95 |
2 files changed, 96 insertions, 1 deletions
diff --git a/lib/libc/gen/Makefile.inc b/lib/libc/gen/Makefile.inc index 332165f..134ba34 100644 --- a/lib/libc/gen/Makefile.inc +++ b/lib/libc/gen/Makefile.inc @@ -52,7 +52,7 @@ SYM_MAPS+=${.CURDIR}/gen/Symbol.map .sinclude "${.CURDIR}/${LIBC_ARCH}/gen/Makefile.inc" MAN+= alarm.3 arc4random.3 \ - basename.3 check_utility_compat.3 clock.3 \ + basename.3 check_utility_compat.3 clock.3 clock_getcpuclockid.3 \ confstr.3 ctermid.3 daemon.3 devname.3 directory.3 dirname.3 \ dl_iterate_phdr.3 dladdr.3 dlinfo.3 dllockinit.3 dlopen.3 \ err.3 exec.3 \ diff --git a/lib/libc/gen/clock_getcpuclockid.3 b/lib/libc/gen/clock_getcpuclockid.3 new file mode 100644 index 0000000..8b624bf --- /dev/null +++ b/lib/libc/gen/clock_getcpuclockid.3 @@ -0,0 +1,95 @@ +.\" Copyright (c) 2012 David Xu <davidxu@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. +.\" +.\" Portions of this text are reprinted and reproduced in electronic form +.\" from IEEE Std 1003.1, 2004 Edition, Standard for Information Technology -- +.\" Portable Operating System Interface (POSIX), The Open Group Base +.\" Specifications Issue 6, Copyright (C) 2001-2004 by the Institute of +.\" Electrical and Electronics Engineers, Inc and The Open Group. In the +.\" event of any discrepancy between this version and the original IEEE and +.\" The Open Group Standard, the original IEEE and The Open Group Standard is +.\" the referee document. The original Standard can be obtained online at +.\" http://www.opengroup.org/unix/online.html. +.\" +.\" $FreeBSD$ +.\" +.Dd August 21, 2012 +.Dt CLOCK_GETCPUCLOCKID 3 +.Os +.Sh NAME +.Nm clock_getcpuclockid +.Nd access a process CPU-time clock +.Sh LIBRARY +.Lb libc +.Sh SYNOPSIS +.In time.h +.Ft int +.Fn clock_getcpuclockid "pid_t pid" "clockid_t *clock_id" +.Sh DESCRIPTION +The +.Fn clock_getcpuclockid +returns the clock ID of the CPU-time clock of the process specified by +.Fa pid . +If the process described by +.Fa pid +exists and the calling process has permission, the clock ID of this +clock will be returned in +.Fa clock_id . +.Pp +If +.Fa pid +is zero, the +.Fn clock_getcpuclockid +function returns the clock ID of the CPU-time clock of the process +making the call, in +.Fa clock_id . +.Sh RETURN VALUES +Upon successful completion, +.Fn clock_getcpuclockid +returns zero; otherwise, an error number is returned to indicate the +error. +.Sh ERRORS +The clock_getcpuclockid() function will fail if: +.Bl -tag -width Er +.It Bq Er EPERM +The requesting process does not have permission to access the CPU-time +clock for the process. +.It Bq Er ESRCH +No process can be found corresponding to the process specified by +.Fa pid . +.El +.Sh SEE ALSO +.Xr clock_gettime 2 +.Sh STANDARDS +The +.Fn clock_getcpuclockid +function conform to +.St -p1003.1-2001 . +.Sh HISTORY +The +.Fn clock_getcpuclockid +function first appeared in +.Fx 10.0 . +.Sh AUTHORS +.An David Xu Aq davidxu@FreeBSD.org |