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qt: implement FutureScheduler, always await async code to complete

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This commit is contained in:
xiphon
2019-06-20 20:28:59 +00:00
parent c7956f76ea
commit be7810c5a8
9 changed files with 277 additions and 187 deletions
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71
src/libwalletqt/WalletManager.cpp
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@@ -145,17 +145,9 @@ Wallet *WalletManager::openWallet(const QString &path, const QString &password,
void WalletManager::openWalletAsync(const QString &path, const QString &password, NetworkType::Type nettype, quint64 kdfRounds)
{
QFuture<Wallet*> future = QtConcurrent::run(this, &WalletManager::openWallet,
path, password, nettype, kdfRounds);
QFutureWatcher<Wallet*> * watcher = new QFutureWatcher<Wallet*>();
connect(watcher, &QFutureWatcher<Wallet*>::finished,
this, [this, watcher]() {
QFuture<Wallet*> future = watcher->future();
watcher->deleteLater();
emit walletOpened(future.result());
m_scheduler.run([this, path, password, nettype, kdfRounds] {
emit walletOpened(openWallet(path, password, nettype, kdfRounds));
});
watcher->setFuture(future);
}
@@ -216,21 +208,10 @@ Wallet *WalletManager::createWalletFromDevice(const QString &path, const QString
void WalletManager::createWalletFromDeviceAsync(const QString &path, const QString &password, NetworkType::Type nettype,
const QString &deviceName, quint64 restoreHeight, const QString &subaddressLookahead)
{
auto lmbd = [=](){
return this->createWalletFromDevice(path, password, nettype, deviceName, restoreHeight, subaddressLookahead);
};
QFuture<Wallet *> future = QtConcurrent::run(lmbd);
QFutureWatcher<Wallet *> * watcher = new QFutureWatcher<Wallet *>();
connect(watcher, &QFutureWatcher<Wallet *>::finished,
this, [this, watcher]() {
QFuture<Wallet *> future = watcher->future();
watcher->deleteLater();
emit walletCreated(future.result());
});
watcher->setFuture(future);
m_scheduler.run([this, path, password, nettype, deviceName, restoreHeight, subaddressLookahead] {
Wallet *wallet = createWalletFromDevice(path, password, nettype, deviceName, restoreHeight, subaddressLookahead);
emit walletCreated(wallet);
});
}
QString WalletManager::closeWallet()
@@ -249,16 +230,9 @@ QString WalletManager::closeWallet()
void WalletManager::closeWalletAsync()
{
QFuture<QString> future = QtConcurrent::run(this, &WalletManager::closeWallet);
QFutureWatcher<QString> * watcher = new QFutureWatcher<QString>();
connect(watcher, &QFutureWatcher<QString>::finished,
this, [this, watcher]() {
QFuture<QString> future = watcher->future();
watcher->deleteLater();
emit walletClosed(future.result());
m_scheduler.run([this] {
emit walletClosed(closeWallet());
});
watcher->setFuture(future);
}
bool WalletManager::walletExists(const QString &path) const
@@ -333,7 +307,7 @@ QString WalletManager::paymentIdFromAddress(const QString &address, NetworkType:
void WalletManager::setDaemonAddressAsync(const QString &address)
{
QtConcurrent::run([this, address] {
m_scheduler.run([this, address] {
m_pimpl->setDaemonAddress(address.toStdString());
});
}
@@ -376,9 +350,9 @@ bool WalletManager::isMining() const
return m_pimpl->isMining();
}
void WalletManager::miningStatusAsync() const
void WalletManager::miningStatusAsync()
{
QtConcurrent::run([this] {
m_scheduler.run([this] {
emit miningStatus(isMining());
});
}
@@ -488,19 +462,11 @@ bool WalletManager::saveQrCode(const QString &code, const QString &path) const
return QRCodeImageProvider::genQrImage(code, &size).scaled(size.expandedTo(QSize(240, 240)), Qt::KeepAspectRatio).save(path, "PNG", 100);
}
void WalletManager::checkUpdatesAsync(const QString &software, const QString &subdir) const
void WalletManager::checkUpdatesAsync(const QString &software, const QString &subdir)
{
QFuture<QString> future = QtConcurrent::run(this, &WalletManager::checkUpdates,
software, subdir);
QFutureWatcher<QString> * watcher = new QFutureWatcher<QString>();
connect(watcher, &QFutureWatcher<Wallet*>::finished,
this, [this, watcher]() {
QFuture<QString> future = watcher->future();
watcher->deleteLater();
qDebug() << "Checking for updates - done";
emit checkUpdatesComplete(future.result());
m_scheduler.run([this, software, subdir] {
emit checkUpdatesComplete(checkUpdates(software, subdir));
});
watcher->setFuture(future);
}
@@ -532,11 +498,18 @@ bool WalletManager::clearWalletCache(const QString &wallet_path) const
return walletCache.rename(newFileName);
}
WalletManager::WalletManager(QObject *parent) : QObject(parent)
WalletManager::WalletManager(QObject *parent)
: QObject(parent)
, m_scheduler(this)
{
m_pimpl = Monero::WalletManagerFactory::getWalletManager();
}
WalletManager::~WalletManager()
{
m_scheduler.shutdownWaitForFinished();
}
void WalletManager::onWalletPassphraseNeeded(Monero::Wallet *)
{
m_mutex_pass.lock();