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Deserialize one at a time and don't block gui until all of them are done.

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This commit is contained in:
Adam Treat 2023-05-07 09:20:09 -04:00
parent 86da175e1c
commit 9bd5609ba0
2 changed files with 88 additions and 44 deletions
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127
chatlistmodel.cpp
View File

@ -17,7 +17,8 @@ ChatListModel::ChatListModel(QObject *parent)
addDummyChat();
ChatsRestoreThread *thread = new ChatsRestoreThread;
connect(thread, &ChatsRestoreThread::chatsRestored, this, &ChatListModel::restoreChats);
connect(thread, &ChatsRestoreThread::chatRestored, this, &ChatListModel::restoreChat);
connect(thread, &ChatsRestoreThread::finished, this, &ChatListModel::chatsRestoredFinished);
connect(thread, &ChatsRestoreThread::finished, thread, &QObject::deleteLater);
thread->start();
}
@ -83,7 +84,12 @@ void ChatsRestoreThread::run()
{
QElapsedTimer timer;
timer.start();
QList<Chat*> chats;
struct FileInfo {
bool oldFile;
qint64 creationDate;
QString file;
};
QList<FileInfo> files;
{
// Look for any files in the original spot which was the settings config directory
QSettings settings;
@ -101,16 +107,11 @@ void ChatsRestoreThread::run()
continue;
}
QDataStream in(&file);
Chat *chat = new Chat;
chat->moveToThread(qApp->thread());
if (!chat->deserialize(in)) {
qWarning() << "ERROR: Couldn't deserialize chat from file:" << file.fileName();
file.remove();
} else {
chats.append(chat);
}
qDebug() << "deserializing chat" << f;
file.remove(); // No longer storing in this directory
FileInfo info;
info.oldFile = true;
info.file = filePath;
in >> info.creationDate;
files.append(info);
file.close();
}
}
@ -147,51 +148,93 @@ void ChatsRestoreThread::run()
if (version <= 100)
in.setVersion(QDataStream::Qt_6_2);
FileInfo info;
info.oldFile = false;
info.file = filePath;
in >> info.creationDate;
files.append(info);
file.close();
}
}
std::sort(files.begin(), files.end(), [](const FileInfo &a, const FileInfo &b) {
return a.creationDate > b.creationDate;
});
for (FileInfo &f : files) {
QFile file(f.file);
bool success = file.open(QIODevice::ReadOnly);
if (!success) {
qWarning() << "ERROR: Couldn't restore chat from file:" << file.fileName();
continue;
}
QDataStream in(&file);
if (!f.oldFile) {
// Read and check the header
quint32 magic;
in >> magic;
if (magic != CHAT_FORMAT_MAGIC) {
qWarning() << "ERROR: Chat file has bad magic:" << file.fileName();
continue;
}
// Read the version
qint32 version;
in >> version;
if (version < 100) {
qWarning() << "ERROR: Chat file has non supported version:" << file.fileName();
continue;
}
if (version <= 100)
in.setVersion(QDataStream::Qt_6_2);
}
qDebug() << "deserializing chat" << f.file;
Chat *chat = new Chat;
chat->moveToThread(qApp->thread());
if (!chat->deserialize(in)) {
qWarning() << "ERROR: Couldn't deserialize chat from file:" << file.fileName();
file.remove();
} else {
chats.append(chat);
emit chatRestored(chat);
}
qDebug() << "deserializing chat" << f;
if (f.oldFile)
file.remove(); // No longer storing in this directory
file.close();
}
}
std::sort(chats.begin(), chats.end(), [](const Chat* a, const Chat* b) {
return a->creationDate() > b->creationDate();
});
qint64 elapsedTime = timer.elapsed();
qDebug() << "deserializing chats took:" << elapsedTime << "ms";
emit chatsRestored(chats);
}
void ChatListModel::restoreChats(const QList<Chat*> &chats)
void ChatListModel::restoreChat(Chat *chat)
{
for (Chat* chat : chats) {
chat->setParent(this);
connect(chat, &Chat::nameChanged, this, &ChatListModel::nameChanged);
chat->setParent(this);
connect(chat, &Chat::nameChanged, this, &ChatListModel::nameChanged);
if (m_dummyChat) {
beginResetModel();
m_chats = QList<Chat*>({chat});
setCurrentChat(chat);
delete m_dummyChat;
m_dummyChat = nullptr;
endResetModel();
} else {
beginInsertRows(QModelIndex(), m_chats.size(), m_chats.size());
m_chats.append(chat);
endInsertRows();
}
}
void ChatListModel::chatsRestoredFinished()
{
if (m_dummyChat) {
removeChat(m_dummyChat);
m_dummyChat = nullptr;
}
beginResetModel();
// Setup the new chats
m_chats = chats;
if (!m_chats.isEmpty()) {
Chat *firstChat = m_chats.first();
if (firstChat->chatModel()->count() < 2)
setNewChat(firstChat);
else
setCurrentChat(firstChat);
} else
if (m_chats.isEmpty())
addChat();
// Clean up the dummy
delete m_dummyChat;
m_dummyChat = nullptr;
endResetModel();
}

5
chatlistmodel.h
View File

@ -11,7 +11,7 @@ public:
void run() override;
Q_SIGNALS:
void chatsRestored(QList<Chat*> chats);
void chatRestored(Chat *chat);
};
class ChatListModel : public QAbstractListModel
@ -174,7 +174,8 @@ public:
void removeChatFile(Chat *chat) const;
void saveChats() const;
void restoreChats(const QList<Chat*> &chats);
void restoreChat(Chat *chat);
void chatsRestoredFinished();
Q_SIGNALS:
void countChanged();