/*
- * Copyright (c) 2002 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2002-2005 Apple Computer, Inc. All rights reserved.
*
* @APPLE_LICENSE_HEADER_START@
*
#ifdef KERNEL
#ifdef __APPLE_API_PRIVATE
-#include <sys/namei.h>
#include <sys/vnode.h>
-#include <sys/lock.h>
#include <hfs/hfs_format.h>
/* cd_flags */
#define CD_HASBUF 0x01 /* allocated filename buffer */
#define CD_DECOMPOSED 0x02 /* name is fully decomposed */
+#define CD_ISMETA 0x40 /* describes a metadata file */
#define CD_ISDIR 0x80 /* describes a directory */
/*
struct cat_attr {
cnid_t ca_fileid; /* inode number (for stat) normally == cnid */
mode_t ca_mode; /* file access mode and type (16 bits) */
- nlink_t ca_nlink; /* file link count (16 bit integer) */
+ u_int16_t ca_recflags; /* catalog record flags (16 bit integer) */
+ u_int32_t ca_nlink; /* file link count */
uid_t ca_uid; /* file owner */
gid_t ca_gid; /* file group */
dev_t ca_rdev; /* device a special file represents */
time_t ca_atime; /* last access time */
+ time_t ca_atimeondisk; /* access time value on disk */
time_t ca_mtime; /* last data modification time */
- int32_t ca_mtime_nsec; /* last data modification time nanosec */
time_t ca_ctime; /* last file status change */
time_t ca_itime; /* file initialization time */
time_t ca_btime; /* last backup time */
- u_long ca_flags; /* status flags (chflags) */
+ u_int32_t ca_flags; /* status flags (chflags) */
union {
u_int32_t cau_blocks; /* total file blocks used (rsrc + data) */
u_int32_t cau_entries; /* total directory entries (valence) */
} ca_union;
u_int8_t ca_finderinfo[32]; /* Opaque Finder information */
+ u_int32_t ca_attrblks; /* cached count of attribute data blocks */
};
/* Aliases for common fields */
#define ca_blocks ca_union.cau_blocks
#define ca_entries ca_union.cau_entries
/*
- * Catalog Node Fork (runtime + on disk)
+ * Catalog Node Fork (runtime)
+ *
+ * NOTE: this is not the same as a struct HFSPlusForkData
*/
struct cat_fork {
- u_int64_t cf_size; /* fork's logical size in bytes */
- u_int32_t cf_clump; /* fork's clump size in bytes */
- u_int32_t cf_blocks; /* total blocks used by this fork */
- struct HFSPlusExtentDescriptor cf_extents[8]; /* initial set of extents */
+ u_int64_t cf_size; /* fork's logical size in bytes */
+ union {
+ u_int32_t cfu_clump; /* fork's clump size in bytes (sys files only) */
+ u_int64_t cfu_bytesread; /* bytes read from this fork */
+ } cf_union;
+ u_int32_t cf_vblocks; /* virtual (unalloated) blocks */
+ u_int32_t cf_blocks; /* total blocks used by this fork */
+ struct HFSPlusExtentDescriptor cf_extents[8]; /* initial set of extents */
+};
+
+#define cf_clump cf_union.cfu_clump
+#define cf_bytesread cf_union.cfu_bytesread
+
+
+/*
+ * Directory Hint
+ * Used to hold state across directory enumerations.
+ *
+ */
+struct directoryhint {
+ TAILQ_ENTRY(directoryhint) dh_link; /* chain */
+ int dh_index; /* index into directory (zero relative) */
+ u_int32_t dh_time;
+ struct cat_desc dh_desc; /* entry's descriptor */
};
+typedef struct directoryhint directoryhint_t;
+
+/*
+ * HFS_MAXDIRHINTS cannot be larger than 63 without reducing
+ * HFS_INDEX_BITS, because given the 6-bit tag, at most 63 different
+ * tags can exist. When HFS_MAXDIRHINTS is larger than 63, the same
+ * list may contain dirhints of the same tag, and a staled dirhint may
+ * be returned.
+ */
+#define HFS_MAXDIRHINTS 32
+#define HFS_DIRHINT_TTL 45
+
+#define HFS_INDEX_MASK 0x03ffffff
+#define HFS_INDEX_BITS 26
/*
struct cat_entry entry[MAXCATENTRIES]; /* array of entries */
};
+/*
+ * Catalog Operations Hint
+ *
+ * lower 16 bits: count of B-tree insert operations
+ * upper 16 bits: count of B-tree delete operations
+ *
+ */
+#define CAT_DELETE 0x00020000
+#define CAT_CREATE 0x00000002
+#define CAT_RENAME 0x00020002
+#define CAT_EXCHANGE 0x00020002
+
+typedef u_int32_t catops_t;
+
+/*
+ * The size of cat_cookie_t much match the size of
+ * the nreserve struct (in BTreeNodeReserve.c).
+ */
+typedef struct cat_cookie_t {
+ char opaque[24];
+} cat_cookie_t;
+
+/* Universal catalog key */
+union CatalogKey {
+ HFSCatalogKey hfs;
+ HFSPlusCatalogKey hfsPlus;
+};
+typedef union CatalogKey CatalogKey;
+
+/* Universal catalog data record */
+union CatalogRecord {
+ int16_t recordType;
+ HFSCatalogFolder hfsFolder;
+ HFSCatalogFile hfsFile;
+ HFSCatalogThread hfsThread;
+ HFSPlusCatalogFolder hfsPlusFolder;
+ HFSPlusCatalogFile hfsPlusFile;
+ HFSPlusCatalogThread hfsPlusThread;
+};
+typedef union CatalogRecord CatalogRecord;
+
+
/*
* Catalog Interface
*
int wantrsrc,
struct cat_desc *outdescp,
struct cat_attr *attrp,
- struct cat_fork *forkp);
+ struct cat_fork *forkp,
+ cnid_t *desc_cnid);
extern int cat_idlookup (struct hfsmount *hfsmp,
cnid_t cnid,
struct cat_attr *attrp,
struct cat_fork *forkp);
+extern int cat_findname (struct hfsmount *hfsmp,
+ cnid_t cnid,
+ struct cat_desc *outdescp);
+
extern int cat_getentriesattr(
struct hfsmount *hfsmp,
- struct cat_desc *prevdesc,
- int index,
+ directoryhint_t *dirhint,
struct cat_entrylist *ce_list);
extern int cat_rename ( struct hfsmount * hfsmp,
extern int cat_getdirentries(
struct hfsmount *hfsmp,
- struct cat_desc *descp,
- struct uio *uio,
- int *eofflag);
+ int entrycnt,
+ directoryhint_t *dirhint,
+ uio_t uio,
+ int extended,
+ int * items,
+ int * eofflag);
extern int cat_insertfilethread (
struct hfsmount *hfsmp,
struct cat_desc *descp);
+extern int cat_preflight(
+ struct hfsmount *hfsmp,
+ catops_t ops,
+ cat_cookie_t *cookie,
+ struct proc *p);
+
+extern void cat_postflight(
+ struct hfsmount *hfsmp,
+ cat_cookie_t *cookie,
+ struct proc *p);
+
+extern int cat_binarykeycompare(
+ HFSPlusCatalogKey *searchKey,
+ HFSPlusCatalogKey *trialKey);
+
+extern int CompareCatalogKeys(
+ HFSCatalogKey *searchKey,
+ HFSCatalogKey *trialKey);
+
+extern int CompareExtendedCatalogKeys(
+ HFSPlusCatalogKey *searchKey,
+ HFSPlusCatalogKey *trialKey);
+
+extern void cat_convertattr(
+ struct hfsmount *hfsmp,
+ CatalogRecord * recp,
+ struct cat_attr *attrp,
+ struct cat_fork *datafp,
+ struct cat_fork *rsrcfp);
+
+extern int cat_convertkey(
+ struct hfsmount *hfsmp,
+ CatalogKey *key,
+ CatalogRecord * recp,
+ struct cat_desc *descp);
+
+extern int resolvelink(
+ struct hfsmount *hfsmp,
+ u_long linkref,
+ struct HFSPlusCatalogFile *recp);
+
+extern int cat_getkeyplusattr(
+ struct hfsmount *hfsmp,
+ cnid_t cnid,
+ CatalogKey *key,
+ struct cat_attr *attrp);
+
#endif /* __APPLE_API_PRIVATE */
#endif /* KERNEL */
#endif /* __HFS_CATALOG__ */
projects / apple / xnu.git / blobdiff