std::thread::detach
std::thread::detach
| void detach( | | (since C++11) |
|---|
Separates the thread of execution from the thread object, allowing execution to continue independently. Any allocated resources will be freed once the thread exits.
After calling detach *this no longer owns any thread.
Parameters
(none).
Return value
(none).
Postconditions
joinable is false.
Exceptions
std::system_error if joinable() == false or an error occurs.
Example
#include <iostream>
#include <chrono>
#include <thread>
void independentThread()
{
std::cout << "Starting concurrent thread.\n";
std::this_thread::sleep_for(std::chrono::seconds(2)
std::cout << "Exiting concurrent thread.\n";
}
void threadCaller()
{
std::cout << "Starting thread caller.\n";
std::thread t(independentThread
t.detach(
std::this_thread::sleep_for(std::chrono::seconds(1)
std::cout << "Exiting thread caller.\n";
}
int main()
{
threadCaller(
std::this_thread::sleep_for(std::chrono::seconds(5)
}
Possible output:
Starting thread caller.
Starting concurrent thread.
Exiting thread caller.
Exiting concurrent thread.
References
- C++11 standard (ISO/IEC 14882:2011):
See also
| join | waits for a thread to finish its execution (public member function) |
|---|---|
| joinable | checks whether the thread is joinable, i.e. potentially running in parallel context (public member function) |
| C documentation for thrd_detach |
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