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telegramstream.cpp
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233 lines (199 loc) · 5.47 KB
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#include "telegramstream.h"
TelegramStream::TelegramStream(QByteArray input) :
QObject(0), array(input), stream(&array, QIODevice::ReadWrite)
{
stream.setByteOrder(QDataStream::LittleEndian);
}
void TelegramStream::skipRawBytes(qint32 i)
{
stream.skipRawData(i);
}
void TelegramStream::writeRawBytes(QByteArray i)
{
stream.writeRawData(i.constData(), i.length());
}
void TelegramStream::readRawBytes(QByteArray &i, qint32 count)
{
i.reserve(count);
i.resize(count);
stream.readRawData(i.data(), count);
}
QByteArray TelegramStream::toByteArray()
{
return array;
}
void TelegramStream::setByteOrder(QDataStream::ByteOrder order)
{
stream.setByteOrder(order);
}
void writeUInt8(TelegramStream& stream, QVariant i, void* callback)
{
stream.stream << (quint8) i.toUInt();
}
void writeUInt32(TelegramStream& stream, QVariant i, void* callback)
{
stream.stream << i.toUInt();
}
void writeUInt64(TelegramStream& stream, QVariant i, void* callback)
{
stream.stream << i.toULongLong();
}
void writeInt32(TelegramStream &stream, QVariant i, void *callback)
{
stream.stream << i.toInt();
}
void writeInt64(TelegramStream &stream, QVariant i, void *callback)
{
stream.stream << i.toLongLong();
}
void writeDouble(TelegramStream &stream, QVariant i, void *callback)
{
stream.stream << i.toDouble();
}
void writeBool(TelegramStream &stream, QVariant i, void *callback)
{
stream.stream << (i.toBool() ? BOOL_TRUE : BOOL_FALSE);
}
void writeString(TelegramStream &stream, QVariant i, void *callback)
{
writeByteArray(stream, i.toString().toUtf8(), callback);
}
void writeByteArray(TelegramStream &stream, QVariant i, void *callback)
{
qint32 startOffset = 1;
QByteArray array = i.toByteArray();
if (array.length() >= 254) {
startOffset = 4;
writeUInt8(stream, 254, callback);
writeUInt8(stream, (array.length() & 0xFF), callback);
writeUInt8(stream, ((array.length() >> 8) & 0xFF), callback);
writeUInt8(stream, ((array.length() >> 16) & 0xFF), callback);
} else {
writeUInt8(stream, (array.length() & 0xFF), callback);
}
stream.writeRawBytes(array);
qint32 offset = (array.length() + startOffset) % 4;
if (offset) {
stream.writeRawBytes(QByteArray(4 - offset, 0));
}
}
void writeInt128(TelegramStream &stream, QVariant i, void *callback)
{
QByteArray array = i.toByteArray();
array.reserve(INT128_BYTES);
array.resize(INT128_BYTES);
stream.writeRawBytes(array);
}
void writeInt256(TelegramStream &stream, QVariant i, void *callback)
{
QByteArray array = i.toByteArray();
array.reserve(INT256_BYTES);
array.resize(INT256_BYTES);
stream.writeRawBytes(array);
}
void writeVector(TelegramStream &stream, QVariant i, void *callback)
{
QVariantList list = i.toList();
writeInt32(stream, VECTOR_ID, callback);
writeInt32(stream, list.length(), callback);
if (callback) for (qint32 i = 0; i < list.length(); ++i) {
(*((WRITE_METHOD) callback))(stream, list[i], callback);
}
}
void readUInt8(TelegramStream &stream, QVariant &i, void *callback)
{
quint8 var;
stream.stream >> var;
i = quint32(var);
}
void readUInt32(TelegramStream &stream, QVariant &i, void *callback)
{
quint32 var;
stream.stream >> var;
i = var;
}
void readUInt64(TelegramStream &stream, QVariant &i, void *callback)
{
quint64 var;
stream.stream >> var;
i = var;
}
void readInt32(TelegramStream &stream, QVariant &i, void *callback)
{
qint32 var;
stream.stream >> var;
i = var;
}
void readInt64(TelegramStream &stream, QVariant &i, void *callback)
{
qint64 var;
stream.stream >> var;
i = var;
}
void readDouble(TelegramStream &stream, QVariant &i, void *callback)
{
double var;
stream.stream >> var;
i = var;
}
void readBool(TelegramStream &stream, QVariant &i, void *callback)
{
qint32 var;
stream.stream >> var;
i = (var == BOOL_TRUE);
}
void readString(TelegramStream &stream, QVariant &i, void *callback)
{
QVariant var;
readByteArray(stream, var, callback);
i = QString::fromUtf8(var.toByteArray());
}
void readByteArray(TelegramStream &stream, QVariant &i, void *callback)
{
QVariant var;
readUInt8(stream, var, callback);
qint32 startOffset = 1;
qint32 length = var.toInt();
if (length >= 254) {
readUInt8(stream, var, callback);
length = var.toInt();
readUInt8(stream, var, callback);
length += (var.toInt() << 8);
readUInt8(stream, var, callback);
length += (var.toInt() << 16);
startOffset = 4;
}
QByteArray array;
stream.readRawBytes(array, length);
qint32 offset = (length + startOffset) % 4;
if (offset) {
stream.skipRawBytes(4 - offset);
}
i = array;
}
void readInt128(TelegramStream &stream, QVariant &i, void *callback)
{
QByteArray var;
stream.readRawBytes(var, INT128_BYTES);
i = var;
}
void readInt256(TelegramStream &stream, QVariant &i, void *callback)
{
QByteArray var;
stream.readRawBytes(var, INT256_BYTES);
i = var;
}
void readVector(TelegramStream &stream, QVariant &i, void *callback)
{
QVariant var;
readInt32(stream, var, callback);
if (var.toInt() != VECTOR_ID) return;
readInt32(stream, var, callback);
qint32 length = var.toInt();
QVariantList list;
if (callback) for (qint32 i = 0; i < length; ++i) {
(*((READ_METHOD) callback))(stream, var, callback);
list.append(var);
}
i = list;
}