Attachment 228225 Details for Bug 197299 – New man page pthread_np(3)

New man page pthread_np(3)

pthread_np.3 (text/plain), 6.15 KB, created by Felix Johnson on 2021-09-28 05:42:28 UTC

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>.\" Copyright (c) 2021 Felix Johnson <felix.the.red@gmail.com>
>.\" 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 COPYRIGHT HOLDERS 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 COPYRIGHT HOLDER 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 September 27, 2021
>.Dt PTHREAD_NP 3
>.Os
>.Sh NAME
>.Nm pthread_np
>.Nd FreeBSD extensions to POSIX thread functions
>.Sh LIBRARY
>.Lb libpthread
>.Sh SYNOPSIS
>.In pthread_np.h
>.Sh DESCRIPTION
>This manual page documents extensions to the POSIX thread functions.
>These extensions may or may not be portable to other operating systems.
>.Pp
>The POSIX thread functions are summarized in this section in the following
>groups:
>.Pp
>.Bl -bullet -offset indent -compact
>.It
>Thread Routines
>.It
>Attribute Object Routines
>.It
>Mutex Routines
>.El
>.\" .It
>.\" Condition Variable Routines
>.\" .It
>.\" Read/Write Lock Routines
>.\" .It
>.\" Per-Thread Context Routines
>.\" .It
>.\" Cleanup Routines
>.Ss Thread Routines
>.Bl -tag -width indent
>.It Xo
>.Ft int
>.Fn pthread_getaffinity_np "pthread_t td" "size_t cpusetsize" "cpuset_t *cpusetp"
>.Xc
>Get CPU affinity of a specified thread.
>.It Xo
>.Ft int
>.Fn pthread_get_name_np "pthread_t thread" "char *name" "size_t len"
>.Xc
>Get the name of a specified thread.
>.It Xo
>.Ft int
>.Fn pthread_getname_np "pthread_t thread" "char *name" "size_t len"
>.Xc
>Get the name of a specified thread.
>.It Xo
>.Ft int
>.Fn pthread_getthreadid_np void
>.Xc
>Get the calling thread's integral ID.
>.It Xo
>.Ft int
>.Fn pthread_main_np void
>.Xc
>Identify the initial thread.
>.It Xo
>.Ft int
>.Fn pthread_multi_np void
>.Xc
>Sets the thread's scheduling mode to multi-threaded.
>.It Xo
>.Ft int
>.Fn pthread_peekjoin_np "pthread_t thread" "void **value_ptr"
>.Xc
>Peek into the exit status of a specified thread.
>.It Xo
>.Ft int
>.Fn pthread_resume_all_np void
>.Xc
>Resume all suspended threads.
>.It Xo
>.Ft int
>.Fn pthread_setaffinity_np "pthread_t td" "size_t cpusetsize" "const cpuset_t *cpusetp"
>.Xc
>Attempt to set the CPU affinity of a specified thread.
>.It Xo
>.Ft int
>.Fn pthread_set_name_np "pthread_t thread" "char *name"
>.Xc
>Sets the specified thread's name.
>.It Xo
>.Ft int
>.Fn pthread_setname_np "pthread_t thread" "char *name"
>.Xc
>Sets the specified thread's name.
>.It Xo
>.Ft int
>.Fn pthread_single_np void
>.Xc
>Sets the thread's scheduling mode to single-threaded.
>.It Xo
>.Ft int
>.Fn pthread_suspend_np "pthread_t tid"
>.Xc
>Suspend the specified thread.
>.It Xo
>.Ft int
>.Fn pthread_suspend_all_np void
>.Xc
>Suspend all active threads.
>.It Xo
>.Ft int
>.Fn pthread_switch_add_np "pthread_switch_routine_t routine"
>.Xc
>Install a routine to get called every time a thread
>gets the context switched.
>.It Xo
>.Ft int
>.Fn pthread_switch_delete_np "pthread_switch_routine_t routine"
>.Xc
>Remove a routine to get called every time a thread
>gets the context switched.
>.It Xo
>.Ft int
>.Fn pthread_timedjoin_np "pthread_t thread" "void **value_ptr" "const struct timespec *abstime)
>.Xc
>Equivalent to
>.Fn pthread_join
>except it will return if the specified thread does not exit before
>.Fa abstime
>passes.
>.El
>.Ss Attribute Object Routines
>.Bl -tag -width indent
>.It Xo
>.Ft int
>.Fo pthread_attr_get_np
>.Fa "pthread_t pid" "pthread_attr_t *dst"
>.Fc
>.Xc
>Get the attributes of an existent thread.
>.It Xo
>.Ft int
>.Fo pthread_attr_getaffinity_np
>.Fa "const pthread_attr_t *pattr" "size_t cpusetsize" "cpuset_t *cpusetp"
>.Fc
>.Xc
>Get the CPU affinity mask from the thread attribute object.
>.It Xo
>.Ft int
>.Fn pthread_attr_setaffinity_np "pthread_attr_t *pattr" "size_t cpusetsize" "const cpuset_t *cpusetp"
>.Xc
>Set the CPU affinity mask for the thread attribute object.
>.It Xo
>.Ft int
>.Fn pthread_attr_setcreatesuspend_np "pthread_attr_t *attr"
>.Xc
>Prepare thread attribute object for creation of suspended thread.
>.El
>.Ss Mutex Routines
>.Bl -tag -width indent
>.It Xo
>.Ft int
>.Fn pthread_mutexattr_getkind_np "pthread_mutexattr_t attr"
>.Xc
>Deprecated, use
>.Xr pthread_mutexattr_gettype 3
>instead.
>.It Xo
>.Ft int
>.Fn pthread_mutexattr_setkind_np "pthread_mutexattr_t *attr"
>.Xc
>Deprecated, use
>.Xr pthread_mutexattr_settype 3
>instead.
>.El
>.\" .Ss Condition Variable Routines
>.\" .Bl -tag -width indent
>.\" .El
>.\" .Ss Read/Write Lock Routines
>.\" .Bl -tag -width indent
>.\" .El
>.\" .Ss Per-Thread Context Routines
>.\" .Bl -tag -width indent
>.\" .El
>.\" .Ss Cleanup Routines
>.\" .Bl -tag -width indent
>.\" .El
>.Sh IMPLEMENTATION NOTES
>The current
>.Fx
>POSIX thread implementation is built into the
>.Lb libthr
>library.
>It contains thread-safe versions of
>.Lb libc
>functions and the thread functions.
>Threaded applications are linked with this library.
>.Sh SEE ALSO
>.Xr libthr 3 ,
>.Xr pthread 3 ,
>.Xr pthread_affinity_np 3 ,
>.Xr pthread_attr_get_np 3 ,
>.Xr pthread_attr_setcreatesuspend_np 3 ,
>.Xr pthread_getthreadid_np 3 ,
>.Xr pthread_join 3 ,
>.Xr pthread_main_np 3 ,
>.Xr pthread_multi_np 3 ,
>.Xr pthread_mutexattr_getkind_np 3 ,
>.Xr pthread_resume_all_np 3 ,
>.Xr pthread_set_name_np 3 ,
>.Xr pthread_suspend_np 3 ,
>.Xr pthread_suspend_all_np 3 ,
>.Xr pthread_switch_add_np 3
>.Sh STANDARDS
>The functions with the
>.Nm pthread_
>prefix and
>.Nm _np
>suffix are non-portable extensions to POSIX threads.
>.Pp

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