1.\" $OpenBSD: ERR_remove_state.3,v 1.7 2020/03/28 22:40:58 schwarze Exp $ 2.\" OpenSSL 9b86974e Aug 17 15:21:33 2015 -0400 3.\" 4.\" This file was written by Ulf Moeller <ulf@openssl.org> and 5.\" Matt Caswell <matt@openssl.org>. 6.\" Copyright (c) 2000, 2013 The OpenSSL Project. All rights reserved. 7.\" 8.\" Redistribution and use in source and binary forms, with or without 9.\" modification, are permitted provided that the following conditions 10.\" are met: 11.\" 12.\" 1. Redistributions of source code must retain the above copyright 13.\" notice, this list of conditions and the following disclaimer. 14.\" 15.\" 2. Redistributions in binary form must reproduce the above copyright 16.\" notice, this list of conditions and the following disclaimer in 17.\" the documentation and/or other materials provided with the 18.\" distribution. 19.\" 20.\" 3. All advertising materials mentioning features or use of this 21.\" software must display the following acknowledgment: 22.\" "This product includes software developed by the OpenSSL Project 23.\" for use in the OpenSSL Toolkit. (http://www.openssl.org/)" 24.\" 25.\" 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 26.\" endorse or promote products derived from this software without 27.\" prior written permission. For written permission, please contact 28.\" openssl-core@openssl.org. 29.\" 30.\" 5. Products derived from this software may not be called "OpenSSL" 31.\" nor may "OpenSSL" appear in their names without prior written 32.\" permission of the OpenSSL Project. 33.\" 34.\" 6. Redistributions of any form whatsoever must retain the following 35.\" acknowledgment: 36.\" "This product includes software developed by the OpenSSL Project 37.\" for use in the OpenSSL Toolkit (http://www.openssl.org/)" 38.\" 39.\" THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 40.\" EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 41.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 42.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 43.\" ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 44.\" SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 45.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 46.\" LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 47.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 48.\" STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 49.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 50.\" OF THE POSSIBILITY OF SUCH DAMAGE. 51.\" 52.Dd $Mdocdate: March 28 2020 $ 53.Dt ERR_REMOVE_STATE 3 54.Os 55.Sh NAME 56.Nm ERR_remove_thread_state , 57.Nm ERR_remove_state 58.Nd free a thread's OpenSSL error queue 59.Sh SYNOPSIS 60.In openssl/err.h 61.Ft void 62.Fo ERR_remove_thread_state 63.Fa "const CRYPTO_THREADID *tid" 64.Fc 65.Pp 66Deprecated: 67.Pp 68.Ft void 69.Fo ERR_remove_state 70.Fa "unsigned long pid" 71.Fc 72.Sh DESCRIPTION 73.Fn ERR_remove_thread_state 74frees the error queue associated with thread 75.Fa tid . 76If 77.Fa tid 78is 79.Dv NULL , 80the current thread will have its error queue removed. 81.Pp 82Since error queue data structures are allocated automatically for new 83threads, they must be freed when threads are terminated in order to 84avoid memory leaks. 85.Pp 86.Fn ERR_remove_state 87is deprecated and has been replaced by 88.Fn ERR_remove_thread_state . 89Since threads in OpenSSL are no longer identified by unsigned long 90values, any argument to this function is ignored. 91Calling 92.Fn ERR_remove_state 93is equivalent to 94.Fn ERR_remove_thread_state NULL . 95.Sh SEE ALSO 96.Xr ERR 3 97.Sh HISTORY 98.Fn ERR_remove_state 99first appeared in SSLeay 0.6.1 and has been available since 100.Ox 2.4 . 101.Pp 102It was deprecated in OpenSSL 1.0.0 and 103.Ox 4.9 104when 105.Fn ERR_remove_thread_state 106was introduced and thread IDs were introduced to identify threads 107instead of 108.Vt unsigned long . 109