11fbdc08dSPoul-Henning Kamp.\" Copyright (c) 1997 Brian Cully <shmit@kublai.com> 21fbdc08dSPoul-Henning Kamp.\" All rights reserved. 31fbdc08dSPoul-Henning Kamp.\" 41fbdc08dSPoul-Henning Kamp.\" Redistribution and use in source and binary forms, with or without 51fbdc08dSPoul-Henning Kamp.\" modification, are permitted provided that the following conditions 61fbdc08dSPoul-Henning Kamp.\" are met: 71fbdc08dSPoul-Henning Kamp.\" 1. Redistributions of source code must retain the above copyright 81fbdc08dSPoul-Henning Kamp.\" notice, this list of conditions and the following disclaimer. 91fbdc08dSPoul-Henning Kamp.\" 2. Redistributions in binary form must reproduce the above copyright 101fbdc08dSPoul-Henning Kamp.\" notice, this list of conditions and the following disclaimer in the 111fbdc08dSPoul-Henning Kamp.\" documentation and/or other materials provided with the distribution. 121fbdc08dSPoul-Henning Kamp.\" 3. Neither the name of the author nor the names of any co-contributors 131fbdc08dSPoul-Henning Kamp.\" may be used to endorse or promote products derived from this software 141fbdc08dSPoul-Henning Kamp.\" without specific prior written permission. 151fbdc08dSPoul-Henning Kamp.\" 161fbdc08dSPoul-Henning Kamp.\" THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND 171fbdc08dSPoul-Henning Kamp.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 181fbdc08dSPoul-Henning Kamp.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 191fbdc08dSPoul-Henning Kamp.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 201fbdc08dSPoul-Henning Kamp.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 211fbdc08dSPoul-Henning Kamp.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 221fbdc08dSPoul-Henning Kamp.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 231fbdc08dSPoul-Henning Kamp.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 241fbdc08dSPoul-Henning Kamp.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 251fbdc08dSPoul-Henning Kamp.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 261fbdc08dSPoul-Henning Kamp.\" SUCH DAMAGE. 271fbdc08dSPoul-Henning Kamp.\" 281fbdc08dSPoul-Henning Kamp.Dd July 28, 1998 291fbdc08dSPoul-Henning Kamp.Dt PTHREAD_COND_SIGNAL 3 301fbdc08dSPoul-Henning Kamp.Os BSD 4 311fbdc08dSPoul-Henning Kamp.Sh NAME 321fbdc08dSPoul-Henning Kamp.Nm pthread_cond_signal 331fbdc08dSPoul-Henning Kamp.Nd unblock a thread waiting for a condition variable 341fbdc08dSPoul-Henning Kamp.Sh SYNOPSIS 351fbdc08dSPoul-Henning Kamp.Fd #include <pthread.h> 361fbdc08dSPoul-Henning Kamp.Ft int 371fbdc08dSPoul-Henning Kamp.Fn pthread_cond_signal "pthread_cond_t *cond" 381fbdc08dSPoul-Henning Kamp.Sh DESCRIPTION 391fbdc08dSPoul-Henning KampThe 401fbdc08dSPoul-Henning Kamp.Fn pthread_cond_signal 411fbdc08dSPoul-Henning Kampfunction unblocks one thread waiting for the condition variable 421fbdc08dSPoul-Henning Kamp.Fa cond . 431fbdc08dSPoul-Henning Kamp.Sh RETURN VALUES 441fbdc08dSPoul-Henning KampIf successful, the 451fbdc08dSPoul-Henning Kamp.Fn pthread_cond_signal 461fbdc08dSPoul-Henning Kampfunction will return zero, otherwise an error number will be returned 471fbdc08dSPoul-Henning Kampto indicate the error. 481fbdc08dSPoul-Henning Kamp.Sh ERRORS 491fbdc08dSPoul-Henning Kamp.Fn pthread_cond_signal 501fbdc08dSPoul-Henning Kampwill fail if: 511fbdc08dSPoul-Henning Kamp.Bl -tag -width Er 521fbdc08dSPoul-Henning Kamp.It Bq Er EINVAL 531fbdc08dSPoul-Henning KampThe value specified by 541fbdc08dSPoul-Henning Kamp.Fa cond 551fbdc08dSPoul-Henning Kampis invalid. 561fbdc08dSPoul-Henning Kamp.El 571fbdc08dSPoul-Henning Kamp.Pp 581fbdc08dSPoul-Henning Kamp.Sh SEE ALSO 59acd80190SWolfram Schneider.Xr pthread_cond_broadcast 3 , 601fbdc08dSPoul-Henning Kamp.Xr pthread_cond_destroy 3 , 61acd80190SWolfram Schneider.Xr pthread_cond_init 3 , 621fbdc08dSPoul-Henning Kamp.Xr pthread_cond_timedwait 3 , 63acd80190SWolfram Schneider.Xr pthread_cond_wait 3 641fbdc08dSPoul-Henning Kamp.Sh STANDARDS 651fbdc08dSPoul-Henning Kamp.Fn pthread_cond_signal 668ac3b85eSAlexander Langerconforms to ISO/IEC 9945-1 ANSI/IEEE 671fbdc08dSPoul-Henning Kamp.Pq Dq Tn POSIX 688ac3b85eSAlexander LangerStd 1003.1 Second Edition 1996-07-12. 69