QgsThreadingUtils Class Reference

Provides threading utilities for QGIS. More...

#include <qgsthreadingutils.h>

Static Public Member Functions
template<typename Func >
static bool	runOnMainThread (const Func &func, QgsFeedback *feedback=nullptr)
	Guarantees that func is executed on the main thread.

Detailed Description

Provides threading utilities for QGIS.

Since

QGIS 3.4

Definition at line 111 of file qgsthreadingutils.h.

Member Function Documentation

runOnMainThread()

template<typename Func >

static bool QgsThreadingUtils::runOnMainThread ( const Func &  func, QgsFeedback *  feedback = nullptr  )

inlinestatic

Guarantees that func is executed on the main thread.

If this is called from another thread, the other thread will be blocked until the function has been executed. This is useful to quickly access information from objects that live on the main thread and copying this information into worker threads. Avoid running expensive code inside func. If a feedback is provided, it will observe if the feedback is canceled. In case the feedback is canceled before the main thread started to run the function, it will return without executing the function.

Note

Only works with Qt >= 5.10, earlier versions will execute the code in the worker thread.

Since

QGIS 3.4

Definition at line 132 of file qgsthreadingutils.h.

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The documentation for this class was generated from the following file:

• /build/qgis-3.34.0+99sid/src/core/qgsthreadingutils.h