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.\" 287f3dea24SPeter Wemm.\" $FreeBSD$ 29fbc400a6SNik Clayton.\" 301fbdc08dSPoul-Henning Kamp.Dd July 28, 1998 311fbdc08dSPoul-Henning Kamp.Dt PTHREAD_COND_SIGNAL 3 32a307d598SRuslan Ermilov.Os 331fbdc08dSPoul-Henning Kamp.Sh NAME 341fbdc08dSPoul-Henning Kamp.Nm pthread_cond_signal 351fbdc08dSPoul-Henning Kamp.Nd unblock a thread waiting for a condition variable 36d8a78688SAlexey Zelkin.Sh LIBRARY 37d8a78688SAlexey Zelkin.Lb libc_r 38ec7452f1SRuslan Ermilov.Lb libpthread 391fbdc08dSPoul-Henning Kamp.Sh SYNOPSIS 4032eef9aeSRuslan Ermilov.In pthread.h 411fbdc08dSPoul-Henning Kamp.Ft int 421fbdc08dSPoul-Henning Kamp.Fn pthread_cond_signal "pthread_cond_t *cond" 431fbdc08dSPoul-Henning Kamp.Sh DESCRIPTION 441fbdc08dSPoul-Henning KampThe 451fbdc08dSPoul-Henning Kamp.Fn pthread_cond_signal 461fbdc08dSPoul-Henning Kampfunction unblocks one thread waiting for the condition variable 471fbdc08dSPoul-Henning Kamp.Fa cond . 481fbdc08dSPoul-Henning Kamp.Sh RETURN VALUES 491fbdc08dSPoul-Henning KampIf successful, the 501fbdc08dSPoul-Henning Kamp.Fn pthread_cond_signal 511fbdc08dSPoul-Henning Kampfunction will return zero, otherwise an error number will be returned 521fbdc08dSPoul-Henning Kampto indicate the error. 531fbdc08dSPoul-Henning Kamp.Sh ERRORS 546f673fd1SPhilippe CharnierThe 551fbdc08dSPoul-Henning Kamp.Fn pthread_cond_signal 566f673fd1SPhilippe Charnierfunction will fail if: 571fbdc08dSPoul-Henning Kamp.Bl -tag -width Er 581fbdc08dSPoul-Henning Kamp.It Bq Er EINVAL 591fbdc08dSPoul-Henning KampThe value specified by 601fbdc08dSPoul-Henning Kamp.Fa cond 611fbdc08dSPoul-Henning Kampis invalid. 621fbdc08dSPoul-Henning Kamp.El 631fbdc08dSPoul-Henning Kamp.Sh SEE ALSO 64acd80190SWolfram Schneider.Xr pthread_cond_broadcast 3 , 651fbdc08dSPoul-Henning Kamp.Xr pthread_cond_destroy 3 , 66acd80190SWolfram Schneider.Xr pthread_cond_init 3 , 671fbdc08dSPoul-Henning Kamp.Xr pthread_cond_timedwait 3 , 68acd80190SWolfram Schneider.Xr pthread_cond_wait 3 691fbdc08dSPoul-Henning Kamp.Sh STANDARDS 706f673fd1SPhilippe CharnierThe 711fbdc08dSPoul-Henning Kamp.Fn pthread_cond_signal 726f673fd1SPhilippe Charnierfunction conforms to 73096841ecSRuslan Ermilov.St -p1003.1-96 . 74