Ejemplos de igetinode en C++ (Cpp)

Ejemplo n.º 1

void *
osi_UFSOpen(afs_dcache_id_t *ainode)
{
    struct inode *ip;
    struct osi_file *afile = NULL;
    extern int cacheDiskType;
    afs_int32 code = 0;
    int dummy;
    AFS_STATCNT(osi_UFSOpen);
    if (cacheDiskType != AFS_FCACHE_TYPE_UFS) {
	osi_Panic("UFSOpen called for non-UFS cache\n");
    }
    if (!afs_osicred_initialized) {
	/* valid for alpha_osf, SunOS, Ultrix */
	memset(&afs_osi_cred, 0, sizeof(afs_ucred_t));
	crhold(&afs_osi_cred);	/* don't let it evaporate, since it is static */
	afs_osicred_initialized = 1;
    }
    afile = (struct osi_file *)osi_AllocSmallSpace(sizeof(struct osi_file));
    setuerror(0);
    AFS_GUNLOCK();
    ip = (struct inode *)igetinode(afs_cacheVfsp, (dev_t) cacheDev.dev,
				   (ino_t) ainode->ufs, &dummy);
    AFS_GLOCK();
    if (getuerror()) {
	osi_FreeSmallSpace(afile);
	osi_Panic("UFSOpen: igetinode failed");
    }
    iunlock(ip);
    afile->vnode = ITOV(ip);
    afile->size = VTOI(afile->vnode)->i_size;
    afile->offset = 0;
    afile->proc = (int (*)())0;
    return (void *)afile;
}

Ejemplo n.º 2

Archivo: osi_file.c Proyecto: chanke/openafs-osd

void *
osi_UFSOpen(afs_dcache_id_t *ainode)
{
    struct vnode *vp;
    struct vattr va;
    struct osi_file *afile = NULL;
    extern int cacheDiskType;
    afs_int32 code = 0;
    int dummy;
    char fname[1024];
    struct osi_stat tstat;

    AFS_STATCNT(osi_UFSOpen);
    if (cacheDiskType != AFS_FCACHE_TYPE_UFS) {
	osi_Panic("UFSOpen called for non-UFS cache\n");
    }
    if (!afs_osicred_initialized) {
	/* valid for alpha_osf, SunOS, Ultrix */
	memset(&afs_osi_cred, 0, sizeof(afs_ucred_t));
	afs_osi_cred.cr_ref++;
#ifndef AFS_DARWIN110_ENV
	afs_osi_cred.cr_ngroups = 1;
#endif
	afs_osicred_initialized = 1;
    }
    afile = (struct osi_file *)osi_AllocSmallSpace(sizeof(struct osi_file));
    AFS_GUNLOCK();
#ifdef AFS_CACHE_VNODE_PATH
    if (!ainode->ufs) {
	osi_Panic("No cache inode\n");
    }

    code = vnode_open(ainode->ufs, O_RDWR, 0, 0, &vp, afs_osi_ctxtp);
#else
#ifndef AFS_DARWIN80_ENV
    if (afs_CacheFSType == AFS_APPL_HFS_CACHE)
	code = igetinode(afs_cacheVfsp, (dev_t) cacheDev.dev, &ainode->ufs, &vp, &va, &dummy);	/* XXX hfs is broken */
    else if (afs_CacheFSType == AFS_APPL_UFS_CACHE)
#endif
	code =
	    igetinode(afs_cacheVfsp, (dev_t) cacheDev.dev, (ino_t) ainode->ufs,
		      &vp, &va, &dummy);
#ifndef AFS_DARWIN80_ENV
    else
	panic("osi_UFSOpen called before cacheops initialized\n");
#endif
#endif
    AFS_GLOCK();
    if (code) {
	osi_FreeSmallSpace(afile);
	osi_Panic("UFSOpen: igetinode failed");
    }
    afile->vnode = vp;
    afile->offset = 0;
    afile->proc = (int (*)())0;
#ifndef AFS_CACHE_VNODE_PATH
    afile->size = va.va_size;
#else
    code = afs_osi_Stat(afile, &tstat);
    afile->size = tstat.size;
#endif
    return (void *)afile;
}

Ejemplo n.º 3

Archivo: osi_file.c Proyecto: hwr/openafs

void *
osi_UfsOpen(afs_dcache_id_t *ainode)
{
#ifdef AFS_CACHE_VNODE_PATH
    struct vnode *vp;
#else
    struct inode *ip;
#endif
    struct osi_file *afile = NULL;
    afs_int32 code = 0;
    int dummy;
#ifdef AFS_CACHE_VNODE_PATH
    char namebuf[1024];
    struct pathname lookpn;
#endif
    struct osi_stat tstat;
    afile = osi_AllocSmallSpace(sizeof(struct osi_file));
    AFS_GUNLOCK();

/*
 * AFS_CACHE_VNODE_PATH can be used with any file system, including ZFS or tmpfs.
 * The ainode is not an inode number but a path.
 */
#ifdef AFS_CACHE_VNODE_PATH
	/* Can not use vn_open or lookupname, they use user's CRED() 
	 * We need to run as root So must use low level lookuppnvp
	 * assume fname starts with /
	 */

	code = pn_get_buf(ainode->ufs, AFS_UIOSYS, &lookpn, namebuf, sizeof(namebuf));
    if (code != 0) 
        osi_Panic("UfsOpen: pn_get_buf failed %ld %s", code, ainode->ufs);
 
	VN_HOLD(rootdir); /* released in loopuppnvp */
	code = lookuppnvp(&lookpn, NULL, FOLLOW, NULL, &vp, 
           rootdir, rootdir, afs_osi_credp);
    if (code != 0)  
        osi_Panic("UfsOpen: lookuppnvp failed %ld %s", code, ainode->ufs);
	
#ifdef AFS_SUN511_ENV
    code = VOP_OPEN(&vp, FREAD|FWRITE, afs_osi_credp, NULL);
#else
    code = VOP_OPEN(&vp, FREAD|FWRITE, afs_osi_credp);
#endif

    if (code != 0)
        osi_Panic("UfsOpen: VOP_OPEN failed %ld %s", code, ainode->ufs);

#else
    code =
	igetinode(afs_cacheVfsp, (dev_t) cacheDev.dev, ainode->ufs, &ip,
		  CRED(), &dummy);
#endif
    AFS_GLOCK();
    if (code) {
	osi_FreeSmallSpace(afile);
	osi_Panic("UfsOpen: igetinode failed %ld %s", code, ainode->ufs);
    }
#ifdef AFS_CACHE_VNODE_PATH
    afile->vnode = vp;
    code = afs_osi_Stat(afile, &tstat);
    afile->size = tstat.size;
#else
    afile->vnode = ITOV(ip);
    afile->size = VTOI(afile->vnode)->i_size;
#endif
    afile->offset = 0;
    afile->proc = (int (*)())0;
    return (void *)afile;
}