git-svn-id: svn://db.shs.com.ru/pip@400 12ceb7fc-bf1f-11e4-8940-5bc7170c53b5

2017-04-18 20:49:45 +00:00
parent b1b23bf89c
commit 95c1f34b45
192 changed files with 291 additions and 187 deletions
--- a/src_main/core/pichunkstream.h
+++ b/src_main/core/pichunkstream.h
@@ -0,0 +1,92 @@
+/*! \file pichunkstream.h
+ * \brief Binary serializator
+*/
+/*
+    PIP - Platform Independent Primitives
+    Binary serializator
+    Copyright (C) 2016  Ivan Pelipenko peri4ko@yandex.ru
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef PICHUNKSTREAM_H
+#define PICHUNKSTREAM_H
+
+#include "pibytearray.h"
+
+
+class PIChunkStream
+{
+public:
+	
+	//! Contructs stream for read from "data"
+	PIChunkStream(const PIByteArray & data) {setSource(data);}
+	
+	//! Contructs stream for read or write to/from "data", or empty stream for write
+	PIChunkStream(PIByteArray * data = 0) {setSource(data);}
+	
+	~PIChunkStream();
+	
+	template <typename T>
+	struct Chunk {
+		Chunk(int i, const T & d): id(i), data(d) {}
+		int id;
+		T data;
+	};
+	
+	//! Returns chunk with ID "id" and value "data" for write to stream
+	template <typename T> static Chunk<T> chunk(int id, const T & data) {return Chunk<T>(id, data);}
+	
+	void setSource(const PIByteArray & data);
+	void setSource(PIByteArray * data);
+	
+	//! Returns internal buffer with written data
+	PIByteArray data() const {return tmp_data;}
+	
+	//! Returns if there is end of stream
+	bool atEnd() const {return data_->isEmpty();}
+	
+	
+	//! Read one chunk from stream and returns its ID
+	int read() {(*data_) >> last_id >> last_data; return last_id;}
+	
+	//! Returns last readed chunk ID
+	int getID() {return last_id;}
+	
+	//! Returns value of last readed chunk
+	template <typename T>
+	T getData() const {T ret; PIByteArray s(last_data); s >> ret; return ret;}
+
+	//! Place value of last readed chunk into "v"
+	template <typename T>
+	void get(T & v) const {v = getData<T>();}
+	
+private:
+	void _init();
+	
+	int last_id;
+	PIByteArray * data_, last_data, tmp_data;
+	
+	template <typename T> friend PIChunkStream & operator <<(PIChunkStream & s, const PIChunkStream::Chunk<T> & c);
+};
+
+template <typename T>
+PIChunkStream & operator <<(PIChunkStream & s, const PIChunkStream::Chunk<T> & c) {
+	PIByteArray ba;
+	ba << c.data;
+	(*(s.data_)) << c.id << ba;
+	return s;
+}
+
+#endif // PICHUNKSTREAM_H