// This program demonstrates how to change the worker behavior

// upon the creation of an executor.

#include <taskflow/taskflow.hpp>

class CustomWorkerBehavior : public tf::WorkerInterface {

public:

// to call before the worker enters the scheduling loop

void scheduler_prologue(tf::Worker& w) override {

std::cout << tf::stringify(

"worker ", w.id(), " (native=", w.thread()->native_handle(), ") enters scheduler\n"

);

}

// to call after the worker leaves the scheduling loop

void scheduler_epilogue(tf::Worker& w, std::exception_ptr) override {

std::cout << tf::stringify(

"worker ", w.id(), " (native=", w.thread()->native_handle(), ") leaves scheduler\n"

);

}

};

int main() {

tf::Executor executor(4, std::make_shared<CustomWorkerBehavior>());

return 0;

}