US 2014/0351550 A1 · MEMORY MANAGEMENT APPARATUS AND METHOD FOR THREADS OF DATA DISTRIBUTION SERVICE MIDDLEWARE

Abstract

Disclosed herein are a memory management apparatus and method for threads of Data Distribution Service middleware. The apparatus includes a memory area management unit, one or more thread heaps, and a queue. The memory area management unit partitions a memory chunk allocated for the DDS middleware by a Cyber-Physical System on a memory page basis, manages the partitioned memory pages, and allocates the partitioned memory pages to the threads of the DDS middleware that have requested memory. The thread heaps are provided with the memory pages allocated to threads of the DDS middleware by the memory area management unit, and manage the provided memory pages. The queue receives memory used pages returned by the thread heaps. The thread heaps are provided with the memory pages for the threads by the queue if a memory page is not present in the memory area management unit when the threads request memory.

Claims18

Dependent claims

A memory management apparatus for threads of Data Distribution Service (DDS) middleware, comprising:

a memory area management unit configured to partition a memory chunk allocated for the DDS middleware by a Cyber-Physical System (CPS) on a memory page basis, to manage the partitioned memory pages, and to allocate the partitioned memory pages to the threads of the DDS middleware that have requested memory;
one or more thread heaps configured to be provided with the memory pages allocated to the threads of the DDS middleware by the memory area management unit, and to manage the provided memory pages;
and
a queue configured to receive memory pages used by the threads and returned by the thread heaps;
wherein the thread heaps are provided with the memory pages for the threads by the queue if a memory page is not present in the memory area management unit when the threads request memory.

2 more elements

A memory management method for threads of DDS middleware, comprising:

being allocated, by a memory area management unit, a memory chunk for the DDS middleware by a CPS;
partitioning, by the memory area management unit, the memory chunk on a memory page basis;
allocating, by the memory area management unit, the partitioned memory pages to the threads of the DDS middleware that have requested memory, and providing, by the memory area management unit, thread heaps with the memory pages allocated to the threads;
returning, by the thread heaps, used memory pages to a queue;
determining, by the thread heaps, whether a memory page is present in the memory area management unit when the threads request memory;
and
being provided, by the thread heaps, with the memory pages for the threads by the queue if the memory page is not present in the memory area management unit.

4 more elements

Dependencies are inferred from the claim text.

Memory management apparatus and method for threads of data distribution service middleware

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Memory management apparatus and method for threads of data distribution service middleware

Life of this patent

Abstract

Claims18