1 files changed, 55 insertions, 0 deletions
diff --git a/src/components/include/utils/shared_ptr_helpers.h b/src/components/include/utils/shared_ptr_helpers.h
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+++ b/src/components/include/utils/shared_ptr_helpers.h
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+/*
+ * Copyright (c) 2013, Ford Motor Company
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following
+ * disclaimer in the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * Neither the name of the Ford Motor Company nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 OR CONTRIBUTORS 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.
+ */
+
+#ifndef SRC_COMPONENTS_INCLUDE_UTILS_SHARED_PTR_HELPERS_H_
+#define SRC_COMPONENTS_INCLUDE_UTILS_SHARED_PTR_HELPERS_H_
+
+#include <assert.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <memory>
+
+#include "utils/atomic.h"
+#include "utils/macro.h"
+namespace utils {
+
+/* Test if the given shared ptr is valid and in use
+ */
+template <typename T>
+bool ValidSPtr(std::shared_ptr<T> ptr) {
+  return ptr && ptr.use_count() > 0;
+}
+}  // namespace utils
+
+#endif  // SRC_COMPONENTS_INCLUDE_UTILS_SHARED_PTR_HELPERS_H_
+
+// vim: set ts=2 sw=2 et: