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Diffstat (limited to 'qpid/cpp/src/qpid/framing/BodyHolder.h')
-rw-r--r-- | qpid/cpp/src/qpid/framing/BodyHolder.h | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/qpid/cpp/src/qpid/framing/BodyHolder.h b/qpid/cpp/src/qpid/framing/BodyHolder.h new file mode 100644 index 0000000000..65029e5675 --- /dev/null +++ b/qpid/cpp/src/qpid/framing/BodyHolder.h @@ -0,0 +1,88 @@ +#ifndef QPID_FRAMING_BODYHOLDER_H +#define QPID_FRAMING_BODYHOLDER_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/framing/AMQBody.h" +#include "qpid/framing/Blob.h" +#include "qpid/framing/MaxMethodBodySize.h" // Generated file. +#include "qpid/framing/amqp_types.h" +#include "qpid/RefCounted.h" + + +namespace qpid { +namespace framing { + +class AMQMethodBody; +class AMQBody; +class Buffer; + +/** + * Holder for arbitrary frame body. + */ +class BodyHolder : public RefCounted +{ + public: + // default copy, assign dtor ok. + BodyHolder() {} + BodyHolder(const AMQBody& b) { setBody(b); } + BodyHolder(ClassId c, MethodId m) { setMethod(c,m); } + + /** Construct from an in_place constructor expression */ + template <class InPlace> + BodyHolder(const InPlace& ip, typename EnableInPlace<InPlace>::type* =0) + : blob(ip) {} + + void setBody(const AMQBody& b); + + /** Assign from an in_place constructor expression */ + template <class InPlace> + typename EnableInPlace<InPlace,BodyHolder&>::type + operator=(const InPlace& ip) { blob=ip; return *this; } + + /** Assign by copying. */ + template <class T> + typename DisableInPlace<T,BodyHolder&>::type operator=(const T& x) + { blob=in_place<T>(x); return *this; } + + /** Set to method with ClassId c, MethodId m. */ + void setMethod(ClassId c, MethodId m); + + void encode(Buffer&) const; + void decode(uint8_t frameType, Buffer&, uint32_t=0); + uint32_t size() const; + + /** Return body pointer or 0 if empty. */ + AMQBody* get() { return blob.get(); } + const AMQBody* get() const { return blob.get(); } + + /** Return method pointer or 0 if not a method. */ + AMQMethodBody* getMethod() { return get()->getMethod(); } + const AMQMethodBody* getMethod() const { return get()->getMethod(); } + + private: + Blob<MAX_METHOD_BODY_SIZE, AMQBody> blob; +}; + +}} // namespace qpid::framing + +#endif /*!QPID_FRAMING_BODYHOLDER_H*/ |