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exception.cpp
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37 lines (29 loc) · 857 Bytes
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// The program demonstrate how to capture an exception thrown
// from a running taskflow
#include <taskflow/taskflow.hpp>
int main(){
tf::Executor executor;
tf::Taskflow taskflow("exception");
auto [A, B, C, D] = taskflow.emplace(
[]() { std::cout << "TaskA\n"; },
[]() {
std::cout << "TaskB\n";
throw std::runtime_error("Exception on Task B");
},
[]() {
std::cout << "TaskC\n";
throw std::runtime_error("Exception on Task C");
},
[]() { std::cout << "TaskD will not be printed due to exception\n"; }
);
A.precede(B, C); // A runs before B and C
D.succeed(B, C); // D runs after B and C
try {
executor.run(taskflow).get();
}
catch(const std::runtime_error& e) {
// catched either TaskB's or TaskC's exception
std::cout << e.what() << std::endl;
}
return 0;
}