Multi-process data sharing system and method

Abstract

The invention discloses a multi-process data sharing system and method. The system comprises a shared Hash table module, a shared chain table module, a shared memory pool module and a shared memory block module, and each module comprises an initialization unit, a process synchronization unit, a data verification unit, a process access control unit, a data operation unit and a storage unit. Through the data verification unit used for verifying whether the CRC value of the memory occupied by the shared data structure is correct or not, a border crossing detection mechanism is added to the shared memory, and the correctness of data access is guaranteed; meanwhile, the process access control unit is used for detecting the operation authority of the process when the process operates the shared data structure, so that the operation safety of the shared data and the safety of the data are guaranteed; and meanwhile, the operation of sharing a Hash table, a shared chain table, a shared memory pool and a shared memory block in multiple processes is greatly simplified, and the development efficiency and the data sharing efficiency are improved.

Description

technical field [0001] The invention relates to the technical field of data sharing, in particular to a system and method for sharing data by multiple processes. Background technique [0002] In common IT business systems, for modular design, different processes perform different functions, and at the same time, data sharing among processes is also required. At present, the commonly used data sharing method is to use shared memory. This method is very convenient for the sharing of continuous memory data, but for structured data, especially the implementation device and application of the shared hash table are very lacking, making inter-process access The communication efficiency of the same Hash table cannot be brought into full play and utilized. On the other hand, in a multi-service and multi-process business scenario, the data needs to be shared with applications of multiple companies, but only the specified A process is allowed to modify the data, and the specified B pr...

AI Technical Summary

Problems solved by technology

On the other hand, in a multi-service and multi-process business scenario, the data needs to be shared with applications of multiple companies, but only the specified A process is allowed to modify the data, and the specified B process can only read the data, preventing the B process from Misoperation will affect the data. The current shared memory management mechanism is too simple to achieve fine-grained permission control.

At the same time, in the current shared memory management mechanism, the correctness of important data structures in the shared memory is not verified. If data is written out of bounds, it is not easy to find out.

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