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51 lines
1.3 KiB
C++
51 lines
1.3 KiB
C++
// Copyright (c) 2011-present The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#ifndef BITCOIN_QT_FREESPACECHECKER_H
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#define BITCOIN_QT_FREESPACECHECKER_H
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#include <QObject>
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#include <QString>
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#include <QtGlobal>
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/* Check free space asynchronously to prevent hanging the UI thread.
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Up to one request to check a path is in flight to this thread; when the check()
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function runs, the current path is requested from the associated Intro object.
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The reply is sent back through a signal.
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This ensures that no queue of checking requests is built up while the user is
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still entering the path, and that always the most recently entered path is checked as
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soon as the thread becomes available.
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*/
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class FreespaceChecker : public QObject
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{
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Q_OBJECT
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public:
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class PathQuery
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{
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public:
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virtual QString getPathToCheck() = 0;
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};
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explicit FreespaceChecker(PathQuery* intro) : intro{intro} {}
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enum Status {
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ST_OK,
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ST_ERROR
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};
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public Q_SLOTS:
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void check();
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Q_SIGNALS:
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void reply(int status, const QString &message, quint64 available);
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private:
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PathQuery* intro;
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};
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#endif // BITCOIN_QT_FREESPACECHECKER_H
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