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-rw-r--r--lib/libkse/thread/thr_attr_setguardsize.c57
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diff --git a/lib/libkse/thread/thr_attr_setguardsize.c b/lib/libkse/thread/thr_attr_setguardsize.c
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+/*
+ * Copyright (C) 2001 Jason Evans <jasone@freebsd.org>.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice(s), this list of conditions and the following disclaimer
+ * unmodified other than the allowable addition of one or more
+ * copyright notices.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice(s), this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#include <sys/param.h>
+#include <errno.h>
+#include <pthread.h>
+#include "pthread_private.h"
+
+__weak_reference(_pthread_attr_setguardsize, pthread_attr_setguardsize);
+
+int
+_pthread_attr_setguardsize(pthread_attr_t *attr, size_t guardsize)
+{
+ int ret;
+
+ /* Check for invalid arguments. */
+ if (attr == NULL || *attr == NULL)
+ ret = EINVAL;
+ else {
+ /* Round guardsize up to the nearest multiple of PAGE_SIZE. */
+ if (guardsize % PAGE_SIZE != 0)
+ guardsize = ((guardsize / PAGE_SIZE) + 1) * PAGE_SIZE;
+
+ /* Save the stack size. */
+ (*attr)->guardsize_attr = guardsize;
+ ret = 0;
+ }
+ return(ret);
+}
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