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C++ Thread Library - Function join
Description
It returns when the thread execution has completed.
Declaration
Following is the declaration for std::thread::join function.
void join();
C++11
void join();
Parameters
none
Return Value
none
Exceptions
No-throw guarantee − never throws exceptions.
Data races
The object is accessed.
Example
In below example for std::thread::join.
#include <iostream> #include <thread> #include <chrono> void foo() { std::this_thread::sleep_for(std::chrono::seconds(1)); } void bar() { std::this_thread::sleep_for(std::chrono::seconds(1)); } int main() { std::cout << "starting helper...\n"; std::thread helper1(foo); std::cout << "starting another helper...\n"; std::thread helper2(bar); std::cout << "waiting for helpers to finish..." << std::endl; helper1.join(); helper2.join(); std::cout << "done!\n"; }
The output should be like this −
starting helper... starting another helper... waiting for helpers to finish... done!
thread.htm
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