std::jthread::swap

 

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std::jthread

Memberfunktionen

jthread::jthread

jthread::~jthread

jthread::operator=

Observer

jthread::joinable

jthread::get_id

jthread::native_handle

jthread::hardware_concurrency

Operationen

jthread::join

jthread::detach

jthread::swap

Stop-Token-Behandlung

jthread::get_stop_source

jthread::get_stop_token

jthread::request_stop

Nicht-Member-Funktionen

swap(std::jthread)

 

void swap( std::jthread& other ) noexcept;		(seit C++20)

Tauscht die zugrundeliegenden Handles zweier jthread-Objekte aus.

Parameter

Sonstiges

-

der jthread, mit dem getauscht werden soll

Rückgabewert

(keine)

Beispiel

Führen Sie diesen Code aus

#include <chrono>
#include <iostream>
#include <thread>
 
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::jthread t1(foo);
    std::jthread t2(bar);
 
    std::cout << "thread 1 id: " << t1.get_id() << '\n'
              << "thread 2 id: " << t2.get_id() << '\n';
 
    std::swap(t1, t2);
 
    std::cout << "after std::swap(t1, t2):" << '\n'
              << "thread 1 id: " << t1.get_id() << '\n'
              << "thread 2 id: " << t2.get_id() << '\n';
 
    t1.swap(t2);
 
    std::cout << "after t1.swap(t2):" << '\n'
              << "thread 1 id: " << t1.get_id() << '\n'
              << "thread 2 id: " << t2.get_id() << '\n';
 
 
}

Mögliche Ausgabe

thread 1 id: 140185268262656
thread 2 id: 140185259869952
after std::swap(t1, t2):
thread 1 id: 140185259869952
thread 2 id: 140185268262656
after t1.swap(t2):
thread 1 id: 140185268262656
thread 2 id: 140185259869952

Siehe auch

swap(std::jthread) (C++20)

spezialisiert den Algorithmus std::swap (Funktion)