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refs #568, allow to read incremental data based on timestamp

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* signatures with QDateTime
* flags
This commit is contained in:
Klaus Basan
2016-01-08 00:35:52 +01:00
parent 46e7d42e8c
commit 46336e9cce
14 changed files with 190 additions and 46 deletions
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13
src/blackcore/databasereader.h
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@@ -20,7 +20,6 @@
#include <QDateTime>
#include <QTimer>
namespace BlackCore
{
//! Specialized version of threaded reader for DB data
@@ -32,8 +31,9 @@ namespace BlackCore
//! Response from our database
struct JsonDatastoreResponse
{
QJsonArray jsonArray; //!< JSON array data
QDateTime updated; //!< when updated
QJsonArray jsonArray; //!< JSON array data
QDateTime updated; //!< when was the latest updated?
bool restricted = false; //!< restricted reponse, only data changed
//! Any data?
bool isEmpty() const { return jsonArray.isEmpty(); }
@@ -50,12 +50,15 @@ namespace BlackCore
//! Is response newer?
bool isNewer(qint64 mSecsSinceEpoch) const { return updated.toMSecsSinceEpoch() > mSecsSinceEpoch; }
//! Incremental data
bool isRestricted() const { return restricted; }
//! Implicit conversion
operator QJsonArray() const { return jsonArray; }
};
//! Start reading in own thread
void readInBackgroundThread(BlackMisc::Network::CEntityFlags::Entity entities);
void readInBackgroundThread(BlackMisc::Network::CEntityFlags::Entity entities, const QDateTime &newerThan);
//! Can connect to DB
//! \threadsafe
@@ -69,7 +72,7 @@ namespace BlackCore
protected:
BlackMisc::Network::CUrl m_watchdogUrl; //!< URL for checking if alive
QTimer m_watchdogTimer { this }; //!< Timer for watchdog (DB available?)
QString m_watchdogMessage; //!< Returned status message
QString m_watchdogMessage; //!< Returned status message from watchdog
bool m_canConnect = false; //!< Successful connection?
mutable QReadWriteLock m_watchdogLock; //!< Lock