112 lines
2.7 KiB
C++
112 lines
2.7 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#pragma once
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#include "mtproto/mtproto_auth_key.h"
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#include "base/bytes.h"
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#include <QtCore/QDataStream>
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namespace Serialize {
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inline int stringSize(const QString &str) {
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return sizeof(quint32) + str.size() * sizeof(ushort);
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}
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inline int bytearraySize(const QByteArray &arr) {
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return sizeof(quint32) + arr.size();
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}
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inline int bytesSize(bytes::const_span bytes) {
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return sizeof(quint32) + bytes.size();
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}
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inline int colorSize() {
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return sizeof(quint32);
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}
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void writeColor(QDataStream &stream, const QColor &color);
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QColor readColor(QDataStream &stream);
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struct ReadBytesVectorWrap {
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bytes::vector &bytes;
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};
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inline ReadBytesVectorWrap bytes(bytes::vector &bytes) {
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return ReadBytesVectorWrap { bytes };
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}
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// Compatible with QDataStream &operator>>(QDataStream &, QByteArray &);
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inline QDataStream &operator>>(QDataStream &stream, ReadBytesVectorWrap data) {
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auto &bytes = data.bytes;
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bytes.clear();
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quint32 len;
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stream >> len;
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if (stream.status() != QDataStream::Ok || len == 0xFFFFFFFF) {
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return stream;
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}
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constexpr auto kStep = quint32(1024 * 1024);
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for (auto allocated = quint32(0); allocated < len;) {
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auto blockSize = qMin(kStep, len - allocated);
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bytes.resize(allocated + blockSize);
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if (stream.readRawData(reinterpret_cast<char*>(bytes.data()) + allocated, blockSize) != blockSize) {
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bytes.clear();
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stream.setStatus(QDataStream::ReadPastEnd);
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return stream;
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}
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allocated += blockSize;
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}
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return stream;
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}
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struct WriteBytesWrap {
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bytes::const_span bytes;
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};
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inline WriteBytesWrap bytes(bytes::const_span bytes) {
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return WriteBytesWrap { bytes };
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}
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inline QDataStream &operator<<(QDataStream &stream, WriteBytesWrap data) {
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auto bytes = data.bytes;
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if (bytes.empty()) {
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stream << quint32(0xFFFFFFFF);
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} else {
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auto size = quint32(bytes.size());
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stream << size;
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stream.writeRawData(reinterpret_cast<const char*>(bytes.data()), size);
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}
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return stream;
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}
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inline QDataStream &operator<<(QDataStream &stream, ReadBytesVectorWrap data) {
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return stream << WriteBytesWrap { data.bytes };
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}
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inline int dateTimeSize() {
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return (sizeof(qint64) + sizeof(quint32) + sizeof(qint8));
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}
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template <typename T>
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inline T read(QDataStream &stream) {
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auto result = T();
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stream >> result;
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return result;
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}
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template <>
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inline MTP::AuthKey::Data read<MTP::AuthKey::Data>(QDataStream &stream) {
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auto result = MTP::AuthKey::Data();
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stream.readRawData(reinterpret_cast<char*>(result.data()), result.size());
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return result;
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}
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} // namespace Serialize
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