passing qtconcurrent
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whats the current syntax to pass function within a class and its arguement to qtconcurrent.
for example
typedef struct
{
QString t1;
float t2;
int t3;} mystrc;
class test : public QWidget
{
Q_OBJECTpublic:
void test_func(mystrc *mystrc_ptr);
}class Main_Widget : public QWidget
{
Q_OBJECTpublic:
test *test_ptr;
}
Main_Widget::Main_Widget(QWidget *parent){
mystrc *myst_ptr;
test_ptr = new test;
QFuture<void> future = QtConcurrent::run(this->test_ptr, &test::test_func, myst_ptr);}
?
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Hi,
It's explained here.
Note that in your code, you are passing a local uninitialised pointer which is likely not a good idea.
if i do this,
Main_Widget::Main_Widget(QWidget *parent){
mystrc *myst_ptr;
test_ptr = new test;
for(n=0; n<100; n++){
QFuture<void> future = QtConcurrent::run(this->test_ptr, &test::test_func, myst_ptr);
}
}does it recognize to create 1 thread for the function or its try to create 100 thread. if its latter how do i run the function repeatly in different thread, with out destroy then recreate the thread etc. basically i like to run the function in 1 thread over and over.
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Neither, as explained in the QtConcurrent::run documentation, it's going to use a thread pool to run the 100 task you asking it to run.
What exactly is your function going to do ? From the little you shared, it looks like you should subclass QThread and re-implement the run function with a breakable infinite loop.
