Имеем
| Код |
void fuck() {
boost::mutex::scoped_lock lock(io_mutex);
cout << "Hello, world" << endl;
};
int main() {
cout << "Begin" << endl;
boost::thread thrd1(&fuck);
boost::thread thrd2(&fuck);
boost::thread thrd3(&fuck);
cout << "Before thrd1" << endl;
thrd1.join();
cout << "Before thrd2" << endl;
thrd2.join();
cout << "Before thrd3" << endl;
thrd3.join();
cout << "End" << endl;
return 0;
}
|
Вывод:
| Код |
Begin
Hello, world
Hello, world
Before thrd1
Before thrd2
Before thrd3
Hello, world
End
|
Почему не
| Код |
Begin
Before thrd1
Hello, world
Before thrd2
Hello, world
Before thrd3
Hello, world
End
|
?
|