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author | Alan Conway <aconway@apache.org> | 2007-04-13 20:58:27 +0000 |
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committer | Alan Conway <aconway@apache.org> | 2007-04-13 20:58:27 +0000 |
commit | ca3a7cd64822e874076bd23e9981af077eb47b03 (patch) | |
tree | 677b7d1a4940d10bbb7874a5138c9c2dd45429a7 /cpp/src/qpid/broker/QueuePolicy.cpp | |
parent | ee865f87027fb559d8884cca3f672a8cbdd44ae0 (diff) | |
download | qpid-python-ca3a7cd64822e874076bd23e9981af077eb47b03.tar.gz |
Moved src/ source code to src/qpid directory:
- allows rhm package to build consistently against checked-out or installed qpid.
- consistent correspondence between source paths and C++ namespaces.
- consistent use of #include <qpid/foo> in source and by users.
- allows header files to split over multiple directories,
e.g. separating generated code, separating public API from private files.
git-svn-id: https://svn.apache.org/repos/asf/incubator/qpid/trunk/qpid@528668 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to 'cpp/src/qpid/broker/QueuePolicy.cpp')
-rw-r--r-- | cpp/src/qpid/broker/QueuePolicy.cpp | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/cpp/src/qpid/broker/QueuePolicy.cpp b/cpp/src/qpid/broker/QueuePolicy.cpp new file mode 100644 index 0000000000..620822cddc --- /dev/null +++ b/cpp/src/qpid/broker/QueuePolicy.cpp @@ -0,0 +1,69 @@ +/* + * + * 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 "QueuePolicy.h" + +using namespace qpid::broker; +using namespace qpid::framing; + +QueuePolicy::QueuePolicy(uint32_t _maxCount, uint64_t _maxSize) : + maxCount(_maxCount), maxSize(_maxSize), count(0), size(0) {} + +QueuePolicy::QueuePolicy(const FieldTable& settings) : + maxCount(getInt(settings, maxCountKey, 0)), + maxSize(getInt(settings, maxSizeKey, 0)), count(0), size(0) {} + +void QueuePolicy::enqueued(uint64_t _size) +{ + if (maxCount) count++; + if (maxSize) size += _size; +} + +void QueuePolicy::dequeued(uint64_t _size) +{ + if (maxCount) count--; + if (maxSize) size -= _size; +} + +bool QueuePolicy::limitExceeded() +{ + return (maxSize && size > maxSize) || (maxCount && count > maxCount); +} + +void QueuePolicy::update(FieldTable& settings) +{ + if (maxCount) settings.setInt(maxCountKey, maxCount); + if (maxSize) settings.setInt(maxSizeKey, maxSize); +} + + +int QueuePolicy::getInt(const FieldTable& settings, const std::string& key, int defaultValue) +{ + //Note: currently field table only contain signed 32 bit ints, which + // restricts the values that can be set on the queue policy. + try { + return settings.getInt(key); + } catch (FieldNotFoundException& ignore) { + return defaultValue; + } +} + +const std::string QueuePolicy::maxCountKey("qpid.max_count"); +const std::string QueuePolicy::maxSizeKey("qpid.max_size"); |