post_ack_handle

post_ack_handle is the value handle class of post-ack. It has methods to obtain a pointer to the value and to acknowledge the value.

Prototype

template <typename T>
struct post_ack_handle {
	friend void swap(post_ack_handle &a, post_ack_handle &b); // (1)

	explicit post_ack_handle() = default; // (2)

	post_ack_handle(const post_ack_handle &) = delete;
	post_ack_handle(post_ack_handle &&); // (3)

	post_ack_handle &operator=(const post_ack_handle &) = delete;
	post_ack_handle &operator=(post_ack_handle &&); // (3)

	void ack(); // (4)

	explicit operator bool (); // (5)

	T *operator-> (); // (6)

	T &operator* (); // (6)
};

1. Swaps two handles.
2. Constructs an empty handle.
3. Moves a handle.
4. Acknowledges the value.
5. Checks if the handle is valid.
6. Gets the stored object.

Requirements

T is moveable.

Return values

1. This function doesn't return any value.
2. N/A
3. N/A for constructor, reference to the handle for assignment operator.
4. This method doesn't return any value.
5. This method returns true if the handle isn't empty, false otherwise.
6. These methods return a pointer/reference to the handle.