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Diffstat (limited to 'qpid/cpp/src/qpid/cluster/exp/hash.h')
-rw-r--r-- | qpid/cpp/src/qpid/cluster/exp/hash.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/qpid/cpp/src/qpid/cluster/exp/hash.h b/qpid/cpp/src/qpid/cluster/exp/hash.h new file mode 100644 index 0000000000..298496b22a --- /dev/null +++ b/qpid/cpp/src/qpid/cluster/exp/hash.h @@ -0,0 +1,53 @@ +#ifndef QPID_CLUSTER_EXP_HASH_H +#define QPID_CLUSTER_EXP_HASH_H + +/* + * + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + * + */ + +#include "qpid/sys/IntegerTypes.h" +#include <stdlib.h> +#include <string> + +namespace qpid { +namespace broker { +class Queue; +class QueuedMessage; +} + +namespace cluster { + +class QueueContext; + +/**@file hash functions */ + +// The following all uses the cached hash value on the Queue::getContext() +// FIXME aconway 2011-09-26: de-const broker::Cluster interface then de-const here. +size_t hashof(const broker::Queue& q); +size_t hashof(const QueueContext& qc); +size_t hashof(const broker::QueuedMessage& qm); + +// Hash directly from a value string. +size_t hashof(const std::string& s); +size_t hashof(uint32_t n); + +}} // namespace qpid::cluster + +#endif /*!QPID_CLUSTER_EXP_HASH_H*/ |