necessary to allow ==0 to work despite the safe_bool idiom

necessary to allow ==0 to work despite the safe_bool idiom

necessary to allow ==0 to work despite the safe_bool idiom

necessary to allow ==0 to work despite the safe_bool idiom

necessary to allow ==0 to work despite the safe_bool idiom

necessary to allow ==0 to work despite the safe_bool idiom

necessary to allow ==0 to work despite the safe_bool idiom

necessary to allow ==0 to work despite the safe_bool idiom

necessary to allow ==0 to work despite the safe_bool idiom

\param index The index that you wish to access of the queue \return A reference to data at the index

Different function for a queue, since it uses a different prototype, but it does contain the same implemenation

Access signal's internal structure for reading

Construct read_guard

Release the underlying connection, without disconnecting it. @returns The newly released connection instance is returned.

Logically remove element from connection list. Must be called under write_access() protection.

Logically remove all elements from connection list. Must be called under write_access() protection.

Scoped are default constructible