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-rw-r--r--nptl/pthread_mutexattr_getpshared.c38
1 files changed, 38 insertions, 0 deletions
diff --git a/nptl/pthread_mutexattr_getpshared.c b/nptl/pthread_mutexattr_getpshared.c
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+/* Copyright (C) 2002 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <pthreadP.h>
+
+
+int
+pthread_mutexattr_getpshared (attr, pshared)
+     const pthread_mutexattr_t *attr;
+     int *pshared;
+{
+  const struct pthread_mutexattr *iattr;
+
+  iattr = (const struct pthread_mutexattr *) attr;
+
+  /* We use bit 31 to single whether the mutex is going to be
+     process-shared or not.  */
+  *pshared = ((iattr->mutexkind & 0x80000000) != 0
+	      ? PTHREAD_PROCESS_SHARED : PTHREAD_PROCESS_PRIVATE);
+
+  return 0;
+}