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trunk/branch integration: optimalization

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This commit is contained in:
Marian Krivos
2011-08-23 06:38:04 +00:00
parent a74e3c6be7
commit 22575c3a90
4 changed files with 156 additions and 71 deletions
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74
Foundation/include/Poco/BinaryWriter.h
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@@ -1,7 +1,7 @@
//
// BinaryWriter.h
//
// $Id: //poco/svn/Foundation/include/Poco/BinaryWriter.h#2 $
// $Id: //poco/1.4/Foundation/include/Poco/BinaryWriter.h#2 $
//
// Library: Foundation
// Package: Streams
@@ -41,17 +41,23 @@
#include "Poco/Foundation.h"
#include <vector>
#include <ostream>
namespace Poco {
class TextEncoding;
class TextConverter;
class Foundation_API BinaryWriter
/// This class writes basic types in binary form into an output stream.
/// It provides an inserter-based interface similar to ostream.
/// The writer also supports automatic conversion from big-endian
/// (network byte order) to little-endian and vice-versa.
/// This class writes basic types (and std::vectors of these)
/// in binary form into an output stream.
/// It provides an inserter-based interface similar to ostream.
/// The writer also supports automatic conversion from big-endian
/// (network byte order) to little-endian and vice-versa.
/// Use a BinaryReader to read from a stream created by a BinaryWriter.
/// Be careful when exchanging data between systems with different
/// data type sizes (e.g., 32-bit and 64-bit architectures), as the sizes
@@ -69,11 +75,17 @@ public:
LITTLE_ENDIAN_BYTE_ORDER = 3 /// little-endian byte-order
};
BinaryWriter(std::ostream& ostr, StreamByteOrder byteOrder = NATIVE_BYTE_ORDER);
/// Creates the BinaryWriter.
BinaryWriter(std::ostream& ostr, StreamByteOrder byteOrder = NATIVE_BYTE_ORDER);
/// Creates the BinaryWriter.
~BinaryWriter();
/// Destroys the BinaryWriter.
BinaryWriter(std::ostream& ostr, TextEncoding& encoding, StreamByteOrder byteOrder = NATIVE_BYTE_ORDER);
/// Creates the BinaryWriter using the given TextEncoding.
///
/// Strings will be converted from the currently set global encoding
/// (see Poco::TextEncoding::global()) to the specified encoding.
~BinaryWriter();
/// Destroys the BinaryWriter.
BinaryWriter& operator << (bool value);
BinaryWriter& operator << (char value);
@@ -93,12 +105,26 @@ public:
BinaryWriter& operator << (UInt64 value);
#endif
BinaryWriter& operator << (const std::string& value);
BinaryWriter& operator << (const char* value);
void write7BitEncoded(UInt32 value);
/// Writes a 32-bit unsigned integer in a compressed format.
/// The value is written out seven bits at a time, starting
BinaryWriter& operator << (const std::string& value);
BinaryWriter& operator << (const char* value);
template <typename T>
BinaryWriter& operator << (const std::vector<T>& value)
{
Poco::UInt32 size(static_cast<Poco::UInt32>(value.size()));
*this << size;
for (typename std::vector<T>::const_iterator it = value.begin(); it != value.end(); ++it)
{
*this << *it;
}
return *this;
}
void write7BitEncoded(UInt32 value);
/// Writes a 32-bit unsigned integer in a compressed format.
/// The value is written out seven bits at a time, starting
/// with the seven least-significant bits.
/// The high bit of a byte indicates whether there are more bytes to be
/// written after this one.
@@ -120,12 +146,15 @@ public:
/// This process is repeated until the entire integer has been written.
#endif
void writeRaw(const std::string& rawData);
/// Writes the string as-is to the stream.
void writeRaw(const std::string& rawData);
/// Writes the string as-is to the stream.
void writeRaw(const char* buffer, std::streamsize length);
/// Writes length raw bytes from the given buffer to the stream.
void writeBOM();
/// Writes a byte-order mark to the stream. A byte order mark is
/// a 16-bit integer with a value of 0xFEFF, written in host byte-order.
void writeBOM();
/// Writes a byte-order mark to the stream. A byte order mark is
/// a 16-bit integer with a value of 0xFEFF, written in host byte-order.
/// A BinaryReader uses the byte-order mark to determine the byte-order
/// of the stream.
@@ -149,8 +178,9 @@ public:
/// either BIG_ENDIAN_BYTE_ORDER or LITTLE_ENDIAN_BYTE_ORDER.
private:
std::ostream& _ostr;
bool _flipBytes;
std::ostream& _ostr;
bool _flipBytes;
TextConverter* _pTextConverter;
};