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Linux application development-memory sharing

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Linux application Development-memory sharing

A virtual memory
When the program runs, it loads the required data into physical memory, and the other loads the virtual memory

The kernel state and user state are the methods within the system

Two command IPCS view the current mode of communication of the system

Three-action function get the shared memory address Shmget
Map to process space Shmat
Operating Space memcpy
Close Map Shmdt
Delete the space as needed Shmctl                                        refer to the man manual for the way you use


Linux application development-memory sharing

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