std::thread::join
From cppreference.com
void join();
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(since C++11) | |
Blocks the current thread until the thread identified by *this finishes its execution.
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[edit] Parameters
(none)
[edit] Return value
(none)
[edit] Exceptions
std::system_error if joinable() == false or an error occurs.
[edit] Example
#include <iostream> #include <thread> #include <chrono> void foo() { // simulate expensive operation std::this_thread::sleep_for(std::chrono::seconds(1)); } void bar() { // simulate expensive operation std::this_thread::sleep_for(std::chrono::seconds(1)); } int main() { std::cout << "starting first helper...\n"; std::thread helper1(foo); std::cout << "starting second helper...\n"; std::thread helper2(bar); std::cout << "waiting for helpers to finish...\n"; helper1.join(); helper2.join(); std::cout << "done!\n"; }
Output:
starting first helper... starting second helper... waiting for helpers to finish... done!
[edit] See also
permits the thread to execute independently from the thread handle (public member function) |
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checks whether the thread is joinable, i.e. potentially running in parallel context (public member function) |