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refs #467 Mechanism for processes to notify each other of which log patterns they are subscribed to.

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This commit is contained in:
Mathew Sutcliffe
2015-09-21 02:13:26 +01:00
parent 6d5e3b5897
commit 3aa3a2a892
11 changed files with 197 additions and 6 deletions
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15
src/blackmisc/loghandler.h
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@@ -63,6 +63,9 @@ namespace BlackMisc
return handlerForPattern(CLogPattern::exactMatch(CLogCategory::validation()).withSeverityAtOrAbove(CStatusMessage::SeverityWarning));
}
//! Returns all log patterns for which there are currently subscribed log pattern handlers.
QList<CLogPattern> getAllSubscriptions() const;
signals:
//! Emitted when a message is logged in this process.
void localMessageLogged(const BlackMisc::CStatusMessage &message);
@@ -70,6 +73,12 @@ namespace BlackMisc
//! Emitted when a log message is relayed from a different process.
void remoteMessageLogged(const BlackMisc::CStatusMessage &message);
//! Emitted when an object subscribes to a pattern of log messages.
void subscriptionAdded(const BlackMisc::CLogPattern &pattern);
//! Emitted when an object unsubscribes from a pattern of log messages.
void subscriptionRemoved(const BlackMisc::CLogPattern &pattern);
public slots:
//! Called by our QtMessageHandler to log a message.
void logLocalMessage(const BlackMisc::CStatusMessage &message);
@@ -178,11 +187,13 @@ namespace BlackMisc
private:
friend class CLogHandler;
CLogPatternHandler(CLogHandler *parent);
CLogPatternHandler(CLogHandler *parent, const CLogPattern &pattern);
CLogHandler *m_parent = nullptr;
CLogPattern m_pattern;
bool m_inheritFallThrough = true;
bool m_enableFallThrough = true;
std::atomic<bool> m_subscriptionNeedsUpdate = false;
bool m_isSubscribed = false;
std::atomic<bool> m_subscriptionNeedsUpdate { false };
QTimer m_subscriptionUpdateTimer;
void updateSubscription();
};