A concurrent function run problem.

[jenya7]

I try to run a function.

void SENSOR::DiscoverConcurrent(uint32_t count)
{
        QFuture<void> future = QtConcurrent::run(SENSOR::DiscoverByIndexAll,  count);
}

But I get this error - error: reference to non-static member function must be called.
What does it means. The function

void SENSOR::DiscoverByIndexAll(uint32_t count)
{]

Is not static - I can call it from other modules.

[J.Hilk]

@jenya7 said in A concurrent function run problem.:

Is not static - I can call it from other modules.

right its not static, therefore it requires an instance pointer. this in this case

[jenya7]

@J-Hilk

void SENSOR::DiscoverConcurrent(uint32_t count)
{
    QFuture<void> future = QtConcurrent::run(this->DiscoverByIndexAll, count);
}

the same error

[J.Hilk]

@jenya7

QFuture<void> future = QtConcurrent::run(this, &SENSOR::DiscoverByIndexAll,  count);

[jenya7]

@J-Hilk said in A concurent function run problem.:

this, &SENSOR::DiscoverByIndexAll, count

Thank you. And how can I call the function concurrently from other module?

[JKSH]

@J-Hilk said in A concurrent function run problem.:

QFuture<void> future = QtConcurrent::run(this, &SENSOR::DiscoverByIndexAll,  count);

@J-Hilk is right. This is documented at https://doc.qt.io/qt-5/qtconcurrentrun.html#using-member-functions

[jsulm]

@jenya7 said in A concurrent function run problem.:

And how can I call the function concurrently from other module?

In the same way, just pass pointer to SENSOR instance instead of this...

[jenya7]

@jsulm
Thank you. Now it works good. No GUI blocking.