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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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73
Foundation/include/Poco/BinaryReader.h
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@@ -41,17 +41,23 @@
#include "Poco/Foundation.h"
#include <vector>
#include <istream>
namespace Poco {
class TextEncoding;
class TextConverter;
class Foundation_API BinaryReader
/// This class reads basic types in binary form into an input stream.
/// It provides an extractor-based interface similar to istream.
/// The reader also supports automatic conversion from big-endian
/// (network byte order) to little-endian and vice-versa.
/// This class reads basic types (and std::vectors thereof)
/// in binary form into an input stream.
/// It provides an extractor-based interface similar to istream.
/// The reader also supports automatic conversion from big-endian
/// (network byte order) to little-endian and vice-versa.
/// Use a BinaryWriter to create a stream suitable for a BinaryReader.
{
public:
@@ -64,11 +70,17 @@ public:
UNSPECIFIED_BYTE_ORDER = 4 /// unknown, byte-order will be determined by reading the byte-order mark
};
BinaryReader(std::istream& istr, StreamByteOrder byteOrder = NATIVE_BYTE_ORDER);
/// Creates the BinaryReader.
BinaryReader(std::istream& istr, StreamByteOrder byteOrder = NATIVE_BYTE_ORDER);
/// Creates the BinaryReader.
~BinaryReader();
/// Destroys the BinaryReader.
BinaryReader(std::istream& istr, TextEncoding& encoding, StreamByteOrder byteOrder = NATIVE_BYTE_ORDER);
/// Creates the BinaryReader using the given TextEncoding.
///
/// Strings will be converted from the specified encoding
/// to the currently set global encoding (see Poco::TextEncoding::global()).
~BinaryReader();
/// Destroys the BinaryReader.
BinaryReader& operator >> (bool& value);
BinaryReader& operator >> (char& value);
@@ -88,26 +100,46 @@ public:
BinaryReader& operator >> (UInt64& value);
#endif
BinaryReader& operator >> (std::string& value);
BinaryReader& operator >> (std::string& value);
void read7BitEncoded(UInt32& value);
/// Reads a 32-bit unsigned integer in compressed format.
/// See BinaryWriter::write7BitEncoded() for a description
template <typename T>
BinaryReader& operator >> (std::vector<T>& value)
{
Poco::UInt32 size(0);
T elem;
*this >> size;
if (!good()) return *this;
value.reserve(size);
while (this->good() && size-- > 0)
{
*this >> elem;
value.push_back(elem);
}
return *this;
}
void read7BitEncoded(UInt32& value);
/// Reads a 32-bit unsigned integer in compressed format.
/// See BinaryWriter::write7BitEncoded() for a description
/// of the compression algorithm.
#if defined(POCO_HAVE_INT64)
void read7BitEncoded(UInt64& value);
/// Reads a 64-bit unsigned integer in compressed format.
/// See BinaryWriter::write7BitEncoded() for a description
/// of the compression algorithm.
/// of the compression algorithm.
#endif
void readRaw(int length, std::string& value);
/// Reads length bytes of raw data into value.
void readRaw(std::streamsize length, std::string& value);
/// Reads length bytes of raw data into value.
void readBOM();
/// Reads a byte-order mark from the stream and configures
/// the reader for the encountered byte order.
void readRaw(char* buffer, std::streamsize length);
/// Reads length bytes of raw data into buffer.
void readBOM();
/// Reads a byte-order mark from the stream and configures
/// the reader for the encountered byte order.
/// A byte-order mark is a 16-bit integer with a value of 0xFEFF,
/// written in host byte order.
@@ -131,8 +163,9 @@ public:
/// either BIG_ENDIAN_BYTE_ORDER or LITTLE_ENDIAN_BYTE_ORDER.
private:
std::istream& _istr;
bool _flipBytes;
std::istream& _istr;
bool _flipBytes;
TextConverter* _pTextConverter;
};