.\"	$NetBSD: threads.3,v 1.2 2019/04/27 10:57:11 wiz Exp $
.\"
.\" Copyright (c) 2016 The NetBSD Foundation, Inc.
.\" All rights reserved.
.\"
.\" This code is derived from software contributed to The NetBSD Foundation
.\" by Kamil Rytarowski.
.\"
.\" 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.
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.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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.Dd October 16, 2016
.Dt THREADS 3
.Os
.Sh NAME
.Nm threads
.Nd C11 thread support library
.Sh LIBRARY
.Lb libpthread
.Sh SYNOPSIS
.In threads.h
.Sh DESCRIPTION
The C11 thread support library provides an implementation of a portable threading
interface, built on top of the
.Xr pthread 3
native interfaces.
This library is composed of:
.Bl -dash
.It
Initialization functions.
.It
Condition variable functions.
.It
Mutex functions.
.It
Thread functions.
.It
Thread-specifig storage functions.
.El
.Bl -column "mtx_timedwait"
.It Sy "Function"      Ta Sy "Summary"
.It Xr call_once 3     Ta calls function exactly once
.It Xr cnd_broadcast 3 Ta unblocks all threads blocked on a condition
.It Xr cnd_destroy 3   Ta releases all resources used by a condition
.It Xr cnd_init 3      Ta creates a condition variable
.It Xr cnd_signal 3    Ta unblocks one of threads blocked on a condition
.It Xr cnd_timedwait 3 Ta unlocks a mutex and blocks until a signal or timeout
.It Xr cnd_wait 3      Ta unlocks a mutex and blocks until a signal
.It Xr mtx_destroy 3   Ta releases resources used by a mutex
.It Xr mtx_init 3      Ta creates a mutex object with requested properties
.It Xr mtx_lock 3      Ta blocks on a mutex optionally with a recursive type
.It Xr mtx_timedwait 3 Ta tries to block until it locks a mutex or timeout
.It Xr mtx_trylock 3   Ta tries to lock a mutex
.It Xr mtx_unlock 3    Ta unlocks a mutex
.It Xr thrd_create 3   Ta creates a thread executing a function with a parameter
.It Xr thrd_current 3  Ta identifies the thread that called this function
.It Xr thrd_detach 3   Ta dispose of resources allocated to a thread on exit
.It Xr thrd_equal 3    Ta determines whether two threads refer the same thread
.It Xr thrd_exit 3     Ta terminates a calling thread and sets its result code
.It Xr thrd_join 3     Ta joins a thread with the current one and blocks
.It Xr thrd_sleep 3    Ta suspends a calling thread until a signal or timeout
.It Xr tss_create 3    Ta creates a thread-specific storage pointer with a destructor
.It Xr tss_delete 3    Ta releases resources used by a thread-specific storage
.It Xr tss_get 3       Ta gets a value of thread-specific storage from a key
.It Xr tss_set 3       Ta sets a value of thread-specific storage to a key
.El
.Sh SEE ALSO
.Xr c11 1 ,
.Xr pthread 3 ,
.Xr c 7
.Sh STANDARDS
The
.Nm
library interfaces conform to
.St -isoC-2011 .
.Sh HISTORY
This interface first appeared in
.Nx 9 .
.Sh AUTHORS
.An Kamil Rytarowski Aq Mt kamil@NetBSD.org