fc733ebccd
This section is based on catpages contributed by Mainichi Communications, Inc. Translated by: MYCOM team Converted by: Japanese Online Manual Project <man-jp@jp.FreeBSD.ORG> Submitted by: Kazuo Horikawa <k-horik@yk.rim.or.jp>
91 lines
3.2 KiB
Groff
91 lines
3.2 KiB
Groff
.\" Copyright (c) 1996 John Birrell <jb@cimlogic.com.au>.
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by John Birrell.
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.\" 4. Neither the name of the author nor the names of any co-contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.Dd April 4, 1996
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.Dt PTHREAD_SETSPECIFIC 3
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.Os BSD 4
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.Sh 名称
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.Nm pthread_setspecific
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.Nd スレッドに固有なデータ値の設定
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.Sh 書式
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.Fd #include <pthread.h>
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.Ft int
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.Fn pthread_setspecific "pthread_key_t key" "const void *value"
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.Sh 解説
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.Fn pthread_setspecific
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関数は、
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.Fn pthread_key_create
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を以前に呼び出して入手した
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.Fa key
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に、スレッドに固有な値を関連させます。別のスレッドでは、同じキーに
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別の値を結び付けられます。この値は、呼び出しスレッドでの使用に予約した、
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ダイナミックに割り振られたメモリのブロックを指すポインタであることが
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一般的です。
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.Pp
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.Fn pthread_key_create
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で入手していないキー値で、または
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.Fn pthread_key_delete
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で
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.Fa key
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を削除した後で
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.Fn pthread_setspecific
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を呼び
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出すと、結果は不定になります。
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.Pp
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.Fn pthread_setspecific
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は、スレッドに固有なデータの破壊関数で呼び
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出されることがありますが、このように呼び出されると、記憶域が失われたり無限
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ループに陥ったりすることがあります。
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.Sh 戻り値
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問題がない場合、
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.Fn pthread_setspecific
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関数はゼロを戻します。問題がある場合は、そのエラーを示すエラー番号を戻します。
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.Sh エラー
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.Fn pthread_setspecific
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は、以下のような場合にエラーとなります。
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.Bl -tag -width Er
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.It Bq Er ENOMEM
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メモリが不足しているため、値を
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.Fa key
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に関連させられない場合。
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.It Bq Er EINVAL
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.Fa key
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の値が正しくない場合。
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.El
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.Pp
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.Sh 関連項目
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.Xr pthread_getspecific 3 ,
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.Xr pthread_key_create 3 ,
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.Xr pthread_key_delete 3
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.Sh 規格
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.Fn pthread_setspecific
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は、ISO/IEC 9945-1 ANSI/IEEE
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.Pq Dq Tn POSIX
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Std 1003.1 Second Edition 1996-07-12 に準拠しています。
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