void* handle1(void* arg){
mtx.lock();
std::cout<<"thread1 before add:"<<cnt<<std::endl;
cnt++;
std::cout<<"thread1 after add: "<<cnt<<std::endl;
mtx.unlock();
sleep(2);
}
void* handle2(void* arg){
while(1){
mtx.lock();
std::cout<<"thread2 before add:"<<cnt<<std::endl;
cnt++;
std::cout<<"thread2 after add: "<<cnt<<std::endl;
mtx.unlock();
sleep(2);
}
}
