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Diffstat (limited to 'qpid/cpp/include/qpid/framing/Buffer.h')
| -rw-r--r-- | qpid/cpp/include/qpid/framing/Buffer.h | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/qpid/cpp/include/qpid/framing/Buffer.h b/qpid/cpp/include/qpid/framing/Buffer.h new file mode 100644 index 0000000000..8b08e60762 --- /dev/null +++ b/qpid/cpp/include/qpid/framing/Buffer.h @@ -0,0 +1,136 @@ +/* + * + * 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/amqp_types.h" +#include "qpid/Exception.h" +#include "qpid/CommonImportExport.h" +#include <boost/iterator/iterator_facade.hpp> + +#ifndef _Buffer_ +#define _Buffer_ + +namespace qpid { +namespace framing { + +struct QPID_COMMON_CLASS_EXTERN OutOfBounds : qpid::Exception { + OutOfBounds() : qpid::Exception(std::string("Out of Bounds")) {} +}; + +class Content; +class FieldTable; + +class QPID_COMMON_CLASS_EXTERN Buffer +{ + uint32_t size; + char* data; + uint32_t position; + uint32_t r_position; + + public: + void checkAvailable(uint32_t count) { if (position + count > size) throw OutOfBounds(); } + + /** Buffer input/output iterator. + * Supports using an amqp_0_10::Codec with a framing::Buffer. + */ + class Iterator : public boost::iterator_facade< + Iterator, char, boost::random_access_traversal_tag> + { + public: + Iterator(Buffer& b) : buffer(&b) {} + + private: + friend class boost::iterator_core_access; + char& dereference() const { return buffer->data[buffer->position]; } + void increment() { ++buffer->position; } + bool equal(const Iterator& x) const { return buffer == x.buffer; } + + Buffer* buffer; + }; + + friend class Iterator; + + QPID_COMMON_EXTERN Buffer(char* data=0, uint32_t size=0); + + QPID_COMMON_EXTERN void record(); + QPID_COMMON_EXTERN void restore(bool reRecord = false); + QPID_COMMON_EXTERN void reset(); + + QPID_COMMON_INLINE_EXTERN uint32_t available() { return size - position; } + QPID_COMMON_INLINE_EXTERN uint32_t getSize() { return size; } + QPID_COMMON_INLINE_EXTERN uint32_t getPosition() { return position; } + QPID_COMMON_INLINE_EXTERN void setPosition(uint32_t p) { position = p; } + QPID_COMMON_INLINE_EXTERN Iterator getIterator() { return Iterator(*this); } + QPID_COMMON_INLINE_EXTERN char* getPointer() { return data; } + + QPID_COMMON_EXTERN void putOctet(uint8_t i); + QPID_COMMON_EXTERN void putShort(uint16_t i); + QPID_COMMON_EXTERN void putLong(uint32_t i); + QPID_COMMON_EXTERN void putLongLong(uint64_t i); + QPID_COMMON_EXTERN void putInt8(int8_t i); + QPID_COMMON_EXTERN void putInt16(int16_t i); + QPID_COMMON_EXTERN void putInt32(int32_t i); + QPID_COMMON_EXTERN void putInt64(int64_t i); + QPID_COMMON_EXTERN void putFloat(float f); + QPID_COMMON_EXTERN void putDouble(double f); + QPID_COMMON_EXTERN void putBin128(const uint8_t* b); + + QPID_COMMON_EXTERN uint8_t getOctet(); + QPID_COMMON_EXTERN uint16_t getShort(); + QPID_COMMON_EXTERN uint32_t getLong(); + QPID_COMMON_EXTERN uint64_t getLongLong(); + QPID_COMMON_EXTERN int8_t getInt8(); + QPID_COMMON_EXTERN int16_t getInt16(); + QPID_COMMON_EXTERN int32_t getInt32(); + QPID_COMMON_EXTERN int64_t getInt64(); + QPID_COMMON_EXTERN float getFloat(); + QPID_COMMON_EXTERN double getDouble(); + + template <int n> + QPID_COMMON_EXTERN uint64_t getUInt(); + + template <int n> + QPID_COMMON_EXTERN void putUInt(uint64_t); + + QPID_COMMON_EXTERN void putShortString(const string& s); + QPID_COMMON_EXTERN void putMediumString(const string& s); + QPID_COMMON_EXTERN void putLongString(const string& s); + QPID_COMMON_EXTERN void getShortString(string& s); + QPID_COMMON_EXTERN void getMediumString(string& s); + QPID_COMMON_EXTERN void getLongString(string& s); + QPID_COMMON_EXTERN void getBin128(uint8_t* b); + + QPID_COMMON_EXTERN void putRawData(const string& s); + QPID_COMMON_EXTERN void getRawData(string& s, uint32_t size); + + QPID_COMMON_EXTERN void putRawData(const uint8_t* data, size_t size); + QPID_COMMON_EXTERN void getRawData(uint8_t* data, size_t size); + + template <class T> void put(const T& data) { data.encode(*this); } + template <class T> void get(T& data) { data.decode(*this); } + + QPID_COMMON_EXTERN void dump(std::ostream&) const; +}; + +std::ostream& operator<<(std::ostream&, const Buffer&); + +}} // namespace qpid::framing + + +#endif |