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-rw-r--r--lib/isc/refcount.c32
1 files changed, 32 insertions, 0 deletions
diff --git a/lib/isc/refcount.c b/lib/isc/refcount.c
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+++ b/lib/isc/refcount.c
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+/*
+ * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * See the COPYRIGHT file distributed with this work for additional
+ * information regarding copyright ownership.
+ */
+
+
+#include <config.h>
+
+#include <stddef.h>
+
+#include <isc/mutex.h>
+#include <isc/refcount.h>
+#include <isc/result.h>
+#include <isc/util.h>
+
+isc_result_t
+isc_refcount_init(isc_refcount_t *ref, unsigned int n) {
+ REQUIRE(ref != NULL);
+
+ ref->refs = n;
+#if defined(ISC_PLATFORM_USETHREADS) && !defined(ISC_REFCOUNT_HAVEATOMIC)
+ return (isc_mutex_init(&ref->lock));
+#else
+ return (ISC_R_SUCCESS);
+#endif
+}