Multi-ring shared, traversable, and dynamic advanced database
Examples of the present disclosure describe systems and methods for sharing memory using a multi-ring shared, traversable and dynamic database. In aspects, the database may be synchronized and shared between multiple processes and/or operation mode protection rings of a system. The database may also be persisted to enable the management of information between hardware reboots and application sessions. The information stored in the database may be view independent, traversable, and resizable from various component views of the database. In some aspects, an event processor is additionally described. The event processor may use the database to allocate memory chunks of a shared heap to components/processes in one or more protection modes of the operating system.
1. A system comprising:
one or more processors; and
memory coupled to at least one of the one or more processors, the memory comprising computer executable instructions that, when executed by the at least one process or, performs a method comprising:
receiving, from a component of the system, a request to make an entry in a dynamic memory database comprising information relating to a shared memory heap, wherein the dynamic memory database is synchronized between two or more processes executing in different operating system modes;
determining, by the dynamic memory database, that the shared memory heap does not comprise enough available memory space to accommodate the requested entry;
requesting, by the dynamic memory database, an allocation of additional memory space for the shared memory heap;
processing, by the shared memory heap, the request for the allocation of additional memory space, the processing including extending the size of the shared memory heap by mapping one or more additional sections of memory to at least one of the two or more processes; and
inserting, by the dynamic memory database, the entry request into the shared memory heap.
2. The system of claim 1 , wherein the dynamic memory database comprises one or more objects of a shared memory heap.
3. The system of claim 1 , wherein the dynamic memory database is persisted to enable management of information between hardware reboots and application sessions.
4. The system of claim 1 , wherein different operating system operation modes comprise at least a kernel mode and a user mode.
5. The system of claim 1 , wherein processing the request for the allocation of additional memory space further comprises copying a current state of the shared memory heap.
6. The system of claim 5 , wherein allocating additional memory space further comprises mapping one or more additional sections of free memory to the shared memory heap to create a modified shared memory heap and copying data in the current state of the shared memory heap to the modified shared memory heap.
7. The system of claim 6 , wherein information mapped to at least one of the two or more processes comprises at least memory addresses from the modified shared memory heap and a pointer object.
8. The system of claim 7 , wherein the pointer object describes a database entry of the dynamic memory database, wherein the database entry corresponds to one or more operations associated with the shared memory heap.
9. The system of claim 1 , wherein the dynamic memory database comprises view independent information.
10. A method comprising:
receiving, from a component of the system, a request to make an entry in a dynamic memory database comprising information relating to a shared memory heap, wherein the dynamic memory database is synchronized between two or more processes executing in different operating system modes;
determining, by the dynamic memory database, that the shared memory heap does not comprise enough available memory space to accommodate the requested entry;
requesting, by the dynamic memory database, an allocation of additional memory space for the shared memory heap;
processing, by the shared memory heap, the request for the allocation of additional memory space, the processing including extending the size of the shared memory heap by mapping one or more additional sections of memory to at least one of the two or more processes; and
inserting, by the dynamic memory database, the entry request into the shared memory heap.
11. The method of claim 10 , wherein the dynamic memory database comprises one or more objects of a shared memory heap.
12. The method of claim 10 , wherein the dynamic memory database is persisted to enable management of information between hardware reboots and application sessions.
13. The method of claim 10 , wherein different operating system operation modes comprise at least a kernel mode and a user mode.
14. The method of claim 10 , wherein processing the request for the allocation of additional memory space further comprises copying a current state of the shared memory heap.
15. The method of claim 10 , wherein the dynamic memory database comprises view independent information.
16. A computer storage media encoding computer executable instructions which, when executed by at least one processor, performs a method for sharing memory using a dynamic memory database, comprising:
submitting a request to a dynamic memory database that is synchronized between two or more processes executing in different operating system operation modes, wherein the dynamic memory database comprises one or more objects of a shared memory heap;
evaluating a shared memory heap associated with the dynamic memory database to determine whether memory space is available to perform the request;
when it is determined that the memory space is not available:
copying a current state of the shared memory heap;
adding additional memory space to the shared memory heap to create a modified shared memory heap; and
inserting the current state of the shared memory heap into the modified shared memory heap;
inserting the request to the dynamic memory database; and
mapping memory information of the modified shared memory heap to at least one of the two or more processes.
17. The computer storage media of claim 16 , wherein the dynamic memory database is persisted to enable the management of information between hardware reboots and application sessions.
18. The computer storage media of claim 16 , wherein the dynamic memory database may be traversed and resized from various component view of the dynamic memory database.
19. The computer storage media of claim 16 , wherein the dynamic memory database comprises a pointer object that references locations in the shared memory heap based on offsets from one or more locations in the shared memory heap.
20. The computer storage media of claim 16 , wherein the dynamic memory database is populated with data from the shared memory heap, and wherein the dynamic memory database is a representation of the shared memory heap.