+ // Increase the fd_set_ capacity to at least the specified number of elements.
+ void reserve(u_int n)
+ {
+ if (n <= capacity_)
+ return;
+
+ u_int new_capacity = capacity_ + capacity_ / 2;
+ if (new_capacity < n)
+ new_capacity = n;
+
+ win_fd_set* new_fd_set = static_cast<win_fd_set*>(::operator new(
+ sizeof(win_fd_set) - sizeof(SOCKET)
+ + sizeof(SOCKET) * (new_capacity)));
+
+ new_fd_set->fd_count = fd_set_->fd_count;
+ for (u_int i = 0; i < fd_set_->fd_count; ++i)
+ new_fd_set->fd_array[i] = fd_set_->fd_array[i];
+
+ ::operator delete(fd_set_);
+ fd_set_ = new_fd_set;
+ capacity_ = new_capacity;
+ }
+