Method lock

threading/thread_base.cpp:143–152

}

void thread_base::lock() {
	try {
		thread_lock.lock();
		thread_lock_count++;
	} catch(system_error& sys_err) {
		cout << "unable to lock thread: " << sys_err.code() << ": " << sys_err.what() << endl;
	} catch(...) {
		cout << "unable to lock thread" << endl;
	}
}

bool thread_base::try_lock() {
	try {