95     struct shmid_ds ds;  member
135         g_shmSegs[i].ds.shm_perm.seq = i + 1;  in ShmInit()
230     seg->ds.shm_perm.mode = (UINT32)shmflg & ACCESSPERMS;  in ShmAllocSeg()
231     seg->ds.shm_perm.key = key;  in ShmAllocSeg()
232     seg->ds.shm_segsz = size;  in ShmAllocSeg()
233     seg->ds.shm_perm.cuid = LOS_GetUserID();  in ShmAllocSeg()
234     seg->ds.shm_perm.uid = LOS_GetUserID();  in ShmAllocSeg()
235     seg->ds.shm_perm.cgid = LOS_GetGroupID();  in ShmAllocSeg()
236     seg->ds.shm_perm.gid = LOS_GetGroupID();  in ShmAllocSeg()
237     seg->ds.shm_lpid = 0;  in ShmAllocSeg()
238     seg->ds.shm_nattch = 0;  in ShmAllocSeg()
239     seg->ds.shm_cpid = LOS_GetCurrProcessID();  in ShmAllocSeg()
240     seg->ds.shm_atime = 0;  in ShmAllocSeg()
241     seg->ds.shm_dtime = 0;  in ShmAllocSeg()
242     seg->ds.shm_ctime = time(NULL);  in ShmAllocSeg()
256     if (count != (seg->ds.shm_segsz >> PAGE_SHIFT)) {  in ShmFreeSeg()
257 …VM_ERR("free physical pages failed, count = %d, size = %d", count, seg->ds.shm_segsz >> PAGE_SHIFT…  in ShmFreeSeg()
260     g_shmUsedPageCount -= seg->ds.shm_segsz >> PAGE_SHIFT;  in ShmFreeSeg()
273             (seg->ds.shm_perm.key == key)) {  in ShmFindSegByKey()
285     if (size > seg->ds.shm_segsz) {  in ShmSegValidCheck()
307 …if ((seg->status & SHM_SEG_FREE) || ((seg->ds.shm_nattch == 0) && (seg->status & SHM_SEG_REMOVE)))…  in ShmFindSeg()
348     seg->ds.shm_nattch++;  in OsShmFork()
365     seg->ds.shm_nattch--;  in OsShmRegionFree()
366     if (seg->ds.shm_nattch <= 0 && (seg->status & SHM_SEG_REMOVE)) {  in OsShmRegionFree()
369         seg->ds.shm_dtime = time(NULL);  in OsShmRegionFree()
370         seg->ds.shm_lpid = LOS_GetCurrProcessID(); /* may not be the space's PID. */  in OsShmRegionFree()
399     mode_t privMode = seg->ds.shm_perm.mode;  in ShmPermCheck()
402     if ((uid == seg->ds.shm_perm.uid) || (uid == seg->ds.shm_perm.cuid)) {  in ShmPermCheck()
405     } else if (LOS_CheckInGroups(seg->ds.shm_perm.gid) ||  in ShmPermCheck()
406                LOS_CheckInGroups(seg->ds.shm_perm.cgid)) {  in ShmPermCheck()
517         region = LOS_RegionAlloc(space, 0, seg->ds.shm_segsz, regionFlags, 0);  in ShmatVmmAlloc()
525             LOS_RegionFind(space, vaddr + seg->ds.shm_segsz - 1) ||  in ShmatVmmAlloc()
526             LOS_RegionRangeFind(space, vaddr, seg->ds.shm_segsz - 1))) {  in ShmatVmmAlloc()
530         vaddr = (VADDR_T)LOS_MMap(vaddr, seg->ds.shm_segsz, prot, mapFlags, -1, 0);  in ShmatVmmAlloc()
581     seg->ds.shm_nattch++;  in ShmAt()
584         seg->ds.shm_nattch--;  in ShmAt()
591     seg->ds.shm_atime = time(NULL);  in ShmAt()
592     seg->ds.shm_lpid = LOS_GetCurrProcessID();  in ShmAt()
635             ret = LOS_ArchCopyToUser(buf, &seg->ds, sizeof(struct shmid_ds));  in ShmCtl()
641 …ret = (unsigned int)((unsigned int)seg->ds.shm_perm.seq << 16) | (unsigned int)((unsigned int)shmi…  in ShmCtl()
656             seg->ds.shm_perm.uid = shm_perm.uid;  in ShmCtl()
657             seg->ds.shm_perm.gid = shm_perm.gid;  in ShmCtl()
658             seg->ds.shm_perm.mode = (seg->ds.shm_perm.mode & ~ACCESSPERMS) |  in ShmCtl()
660             seg->ds.shm_ctime = time(NULL);  in ShmCtl()
674             if (seg->ds.shm_nattch <= 0) {  in ShmCtl()
758     seg->ds.shm_nattch--;  in ShmDt()
759     if ((seg->ds.shm_nattch <= 0) &&  in ShmDt()
763         seg->ds.shm_dtime = time(NULL);  in ShmDt()
764         seg->ds.shm_lpid = LOS_GetCurrProcessID();  in ShmDt()
792         PRINTK("%08x %-8d %-10o %-10u %-10u %-10x %s\n", seg->ds.shm_perm.key,  in OsShmInfoCmd()
793                i, seg->ds.shm_perm.mode, seg->ds.shm_segsz, seg->ds.shm_nattch,  in OsShmInfoCmd()
816     if (seg->ds.shm_nattch <= 0) {  in OsShmDeleteCmd()