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//
// BinaryWriter.cpp
//
// Library: Foundation
// Package: Streams
// Module: BinaryReaderWriter
//
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier: BSL-1.0
//
#include "Poco/BinaryWriter.h"
#include "Poco/ByteOrder.h"
#include "Poco/TextEncoding.h"
#include "Poco/TextConverter.h"
#include <cstring>
namespace Poco {
BinaryWriter::BinaryWriter(std::ostream& ostr, StreamByteOrder order):
_ostr(ostr),
_pTextConverter(0)
{
#if defined(POCO_ARCH_BIG_ENDIAN)
_flipBytes = (order == LITTLE_ENDIAN_BYTE_ORDER);
#else
_flipBytes = (order == BIG_ENDIAN_BYTE_ORDER);
#endif
}
BinaryWriter::BinaryWriter(std::ostream& ostr, TextEncoding& encoding, StreamByteOrder order):
_ostr(ostr),
_pTextConverter(new TextConverter(Poco::TextEncoding::global(), encoding))
{
#if defined(POCO_ARCH_BIG_ENDIAN)
_flipBytes = (order == LITTLE_ENDIAN_BYTE_ORDER);
#else
_flipBytes = (order == BIG_ENDIAN_BYTE_ORDER);
#endif
}
BinaryWriter::~BinaryWriter()
{
delete _pTextConverter;
}
BinaryWriter& BinaryWriter::operator << (bool value)
{
_ostr.write((const char*) &value, sizeof(value));
return *this;
}
BinaryWriter& BinaryWriter::operator << (char value)
{
_ostr.write((const char*) &value, sizeof(value));
return *this;
}
BinaryWriter& BinaryWriter::operator << (unsigned char value)
{
_ostr.write((const char*) &value, sizeof(value));
return *this;
}
BinaryWriter& BinaryWriter::operator << (signed char value)
{
_ostr.write((const char*) &value, sizeof(value));
return *this;
}
BinaryWriter& BinaryWriter::operator << (short value)
{
if (_flipBytes)
{
short fValue = ByteOrder::flipBytes(value);
_ostr.write((const char*) &fValue, sizeof(fValue));
}
else
{
_ostr.write((const char*) &value, sizeof(value));
}
return *this;
}
BinaryWriter& BinaryWriter::operator << (unsigned short value)
{
if (_flipBytes)
{
unsigned short fValue = ByteOrder::flipBytes(value);
_ostr.write((const char*) &fValue, sizeof(fValue));
}
else
{
_ostr.write((const char*) &value, sizeof(value));
}
return *this;
}
BinaryWriter& BinaryWriter::operator << (int value)
{
if (_flipBytes)
{
int fValue = ByteOrder::flipBytes(value);
_ostr.write((const char*) &fValue, sizeof(fValue));
}
else
{
_ostr.write((const char*) &value, sizeof(value));
}
return *this;
}
BinaryWriter& BinaryWriter::operator << (unsigned int value)
{
if (_flipBytes)
{
unsigned int fValue = ByteOrder::flipBytes(value);
_ostr.write((const char*) &fValue, sizeof(fValue));
}
else
{
_ostr.write((const char*) &value, sizeof(value));
}
return *this;
}
BinaryWriter& BinaryWriter::operator << (long value)
{
if (_flipBytes)
{
#if defined(POCO_LONG_IS_64_BIT)
long fValue = ByteOrder::flipBytes((Int64) value);
#else
long fValue = ByteOrder::flipBytes((Int32) value);
#endif
_ostr.write((const char*) &fValue, sizeof(fValue));
}
else
{
_ostr.write((const char*) &value, sizeof(value));
}
return *this;
}
BinaryWriter& BinaryWriter::operator << (unsigned long value)
{
if (_flipBytes)
{
#if defined(POCO_LONG_IS_64_BIT)
long fValue = ByteOrder::flipBytes((UInt64) value);
#else
long fValue = ByteOrder::flipBytes((UInt32) value);
#endif
_ostr.write((const char*) &fValue, sizeof(fValue));
}
else
{
_ostr.write((const char*) &value, sizeof(value));
}
return *this;
}
BinaryWriter& BinaryWriter::operator << (float value)
{
if (_flipBytes)
{
const char* ptr = (const char*) &value;
ptr += sizeof(value);
for (unsigned i = 0; i < sizeof(value); ++i)
_ostr.write(--ptr, 1);
}
else
{
_ostr.write((const char*) &value, sizeof(value));
}
return *this;
}
BinaryWriter& BinaryWriter::operator << (double value)
{
if (_flipBytes)
{
const char* ptr = (const char*) &value;
ptr += sizeof(value);
for (unsigned i = 0; i < sizeof(value); ++i)
_ostr.write(--ptr, 1);
}
else
{
_ostr.write((const char*) &value, sizeof(value));
}
return *this;
}
#if defined(POCO_HAVE_INT64) && !defined(POCO_LONG_IS_64_BIT)
BinaryWriter& BinaryWriter::operator << (Int64 value)
{
if (_flipBytes)
{
Int64 fValue = ByteOrder::flipBytes(value);
_ostr.write((const char*) &fValue, sizeof(fValue));
}
else
{
_ostr.write((const char*) &value, sizeof(value));
}
return *this;
}
BinaryWriter& BinaryWriter::operator << (UInt64 value)
{
if (_flipBytes)
{
UInt64 fValue = ByteOrder::flipBytes(value);
_ostr.write((const char*) &fValue, sizeof(fValue));
}
else
{
_ostr.write((const char*) &value, sizeof(value));
}
return *this;
}
#endif
BinaryWriter& BinaryWriter::operator << (const std::string& value)
{
if (_pTextConverter)
{
std::string converted;
_pTextConverter->convert(value, converted);
UInt32 length = (UInt32) converted.size();
write7BitEncoded(length);
_ostr.write(converted.data(), length);
}
else
{
UInt32 length = (UInt32) value.size();
write7BitEncoded(length);
_ostr.write(value.data(), length);
}
return *this;
}
BinaryWriter& BinaryWriter::operator << (const char* value)
{
poco_check_ptr (value);
if (_pTextConverter)
{
std::string converted;
_pTextConverter->convert(value, static_cast<int>(std::strlen(value)), converted);
UInt32 length = (UInt32) converted.size();
write7BitEncoded(length);
_ostr.write(converted.data(), length);
}
else
{
UInt32 length = static_cast<UInt32>(std::strlen(value));
write7BitEncoded(length);
_ostr.write(value, length);
}
return *this;
}
void BinaryWriter::write7BitEncoded(UInt32 value)
{
do
{
unsigned char c = (unsigned char) (value & 0x7F);
value >>= 7;
if (value) c |= 0x80;
_ostr.write((const char*) &c, 1);
}
while (value);
}
#if defined(POCO_HAVE_INT64)
void BinaryWriter::write7BitEncoded(UInt64 value)
{
do
{
unsigned char c = (unsigned char) (value & 0x7F);
value >>= 7;
if (value) c |= 0x80;
_ostr.write((const char*) &c, 1);
}
while (value);
}
#endif
void BinaryWriter::writeRaw(const std::string& rawData)
{
_ostr.write(rawData.data(), (std::streamsize) rawData.length());
}
void BinaryWriter::writeRaw(const char* buffer, std::streamsize length)
{
_ostr.write(buffer, length);
}
void BinaryWriter::writeBOM()
{
UInt16 value = 0xFEFF;
if (_flipBytes) value = ByteOrder::flipBytes(value);
_ostr.write((const char*) &value, sizeof(value));
}
void BinaryWriter::flush()
{
_ostr.flush();
}
} // namespace Poco
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