47 lines
866 B
C
47 lines
866 B
C
/**
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* \file shm.h
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* License details are found in the file LICENSE.
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* \brief
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* header file for System V shared memory
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* \author Gou Nakamura <go.nakamura.yw@hitachi-solutions.com> \par
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* Copyright (C) 2015 RIKEN AICS
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*/
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/*
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* HISTORY:
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*/
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#ifndef HEADER_ARCH_SHM_H
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#define HEADER_ARCH_SHM_H
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/* shmflg */
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#define SHM_HUGE_SHIFT 26
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#define SHM_HUGE_2MB (21 << SHM_HUGE_SHIFT)
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#define SHM_HUGE_1GB (30 << SHM_HUGE_SHIFT)
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struct ipc_perm {
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key_t key;
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uid_t uid;
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gid_t gid;
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uid_t cuid;
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gid_t cgid;
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uint16_t mode;
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uint8_t padding[2];
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uint16_t seq;
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uint8_t padding2[22];
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};
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struct shmid_ds {
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struct ipc_perm shm_perm;
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size_t shm_segsz;
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time_t shm_atime;
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time_t shm_dtime;
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time_t shm_ctime;
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pid_t shm_cpid;
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pid_t shm_lpid;
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uint64_t shm_nattch;
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uint8_t padding[12];
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int init_pgshift;
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};
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#endif /* HEADER_ARCH_SHM_H */
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