Communication apparatus and method based on shared memory

A communication method based on shared memory, comprising:

• publishing, by a data publication unit, data stored in a shared memory unit;
• subscribing, by a data subscription unit, to the data stored in the shared memory unit;
• and
• controlling, by an access control unit, access of the data publication unit and the data subscription unit to the shared memory unit in response to locking operation instructions of the data publication unit and the data subscription unit with respect to the shared memory unit;
• wherein publishing, by the data publication unit, the data stored in the shared memory unit comprises:
• monitoring a locking state of the shared memory unit, and instructing the access control unit to perform a locking operation in order to have a right to access the shared memory unit authenticated;
• and
• wherein instructing the access control unit to perform the locking operation in order to have the right to access the shared memory unit authenticated comprises instructing the access control unit to perform an unlocking operation if termination has been performed without unlocking of the shared memory unit by the access control unit.