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shmop(2) -- shared memory operations
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shmat() attaches the shared memory segment associated with the shared memory identifier specified by shmid to the data segment of the calling process. The segment is attached for reading if (shmflg & SHM_RDONLY) is "true"; otherwise, it is attached for reading and writing. It is not possible to attach a segment for write only. If the shared memory segment has never been attached to by any proces... |
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