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>
70 lines
2.5 KiB
Groff
70 lines
2.5 KiB
Groff
.\" Copyright (c) 1997 Brian Cully <shmit@kublai.com>
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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. 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 July 30, 1998
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.Dt PTHREAD_MUTEX_LOCK 3
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.Os BSD 4
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.Sh 名称
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.Nm pthread_mutex_lock
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.Nd mutex のロック
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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_mutex_lock "pthread_mutex_t *mutex"
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.Sh 解説
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.Fn pthread_mutex_lock
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関数は、
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.Fa mutex
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をロックします。 mutex がすでにロックされている場合、
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呼び出しスレッドは、 mutex が使用できるようになるまでブロックされます。
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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_mutex_lock
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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_mutex_lock
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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 EINVAL
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.Fa mutex
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で指定された値が正しくない場合。
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.It Bq Er EDEADLK
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スレッドがブロックされて
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.Fa mutex
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を待機している場合にデッドロックが発生した場合。
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.Sh 関連項目
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.Xr pthread_mutex_destroy 3 ,
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.Xr pthread_mutex_init 3 ,
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.Xr pthread_mutex_trylock 3 ,
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.Xr pthread_mutex_unlock 3
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.Sh 規格
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.Fn pthread_mutex_lock
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は、
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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
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に準拠しています。
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