/*
* Copyright 2000, International Business Machines Corporation and others.
* All Rights Reserved.
- *
+ *
* This software has been released under the terms of the IBM Public
* License. For details, see the LICENSE file in the top-level source
* directory or online at http://www.openafs.org/dl/license10.html
#define __AFS_DIR_H
#define AFS_PAGESIZE 2048 /* bytes per page */
-#define NHASHENT 128 /* entries in the hash tbl */
-#define MAXPAGES 128 /* max pages in a dir */
-#define BIGMAXPAGES 1023 /* new big max pages */
-#define EPP 64 /* dir entries per page */
-#define LEPP 6 /* log above */
+#define NHASHENT 128 /* entries in the hash tbl */
+#define MAXPAGES 128 /* max pages in a dir */
+#define BIGMAXPAGES 1023 /* new big max pages */
+#define EPP 64 /* dir entries per page */
+#define LEPP 6 /* log above */
/* When this next field changs, it is crucial to modify MakeDir, since the latter is responsible for marking these entries as allocated. Also change the salvager. */
-#define DHE 12 /* entries in a dir header above a pages header alone. */
+#define DHE 12 /* entries in a dir header above a pages header alone. */
#define FFIRST 1
#define FNEXT 2
-struct MKFid
- {/* A file identifier. */
- afs_int32 vnode; /* file's vnode slot */
- afs_int32 vunique; /* the slot incarnation number */
- };
+struct MKFid { /* A file identifier. */
+ afs_int32 vnode; /* file's vnode slot */
+ afs_int32 vunique; /* the slot incarnation number */
+};
-struct PageHeader
- {/* A page header entry. */
+struct PageHeader {
+ /* A page header entry. */
unsigned short pgcount; /* number of pages, or 0 if old-style */
unsigned short tag; /* 1234 in network byte order */
- char freecount; /* unused, info in dirHeader structure */
- char freebitmap[EPP/8];
- char padding[32-(5+EPP/8)];
- };
+ char freecount; /* unused, info in dirHeader structure */
+ char freebitmap[EPP / 8];
+ char padding[32 - (5 + EPP / 8)];
+};
-struct DirHeader
- {/* A directory header object. */
+struct DirHeader {
+ /* A directory header object. */
struct PageHeader header;
- char alloMap[MAXPAGES]; /* one byte per 2K page */
+ char alloMap[MAXPAGES]; /* one byte per 2K page */
unsigned short hashTable[NHASHENT];
- };
+};
-struct DirEntry
- {/* A directory entry */
+struct DirEntry {
+ /* A directory entry */
char flag;
- char length; /* currently unused */
+ char length; /* currently unused */
unsigned short next;
struct MKFid fid;
char name[16];
- };
+};
-struct DirXEntry
- {/* A directory extension entry. */
+struct DirXEntry {
+ /* A directory extension entry. */
char name[32];
- };
+};
-struct DirPage0
- {/* A page in a directory. */
+struct DirPage0 {
+ /* A page in a directory. */
struct DirHeader header;
struct DirEntry entry[1];
- };
+};
-struct DirPage1
- {/* A page in a directory. */
+struct DirPage1 {
+ /* A page in a directory. */
struct PageHeader header;
struct DirEntry entry[1];
- };
+};
/*
* Note that this declaration is seen in both the kernel code and the
*/
extern int DVOffset(void *ap);
-#endif /* !defined(__AFS_DIR_H) */
+
+
+/* Prototypes */
+extern int NameBlobs(char *name);
+extern int Create(void *dir, char *entry, void *vfid);
+extern int Length(void *dir);
+extern int Delete(void *dir, char *entry);
+extern int FindBlobs(void *dir, int nblobs);
+extern void AddPage(void *dir, int pageno);
+extern void FreeBlobs(void *dir, register int firstblob, int nblobs);
+extern int MakeDir(void *dir, afs_int32 * me, afs_int32 * parent);
+extern int Lookup(void *dir, char *entry, void *fid);
+extern int LookupOffset(void *dir, char *entry, void *fid, long *offsetp);
+extern int EnumerateDir(void *dir,
+ int (*hookproc) (void *dir, char *name,
+ afs_int32 vnode, afs_int32 unique),
+ void *hook);
+extern int IsEmpty(void *dir);
+extern struct DirEntry *GetBlob(void *dir, afs_int32 blobno);
+extern int DirHash(register char *string);
+
+extern int DStat(int *abuffers, int *acalls, int *aios);
+extern void DRelease(register struct buffer *bp, int flag);
+extern int DVOffset(register void *ap);
+extern int DFlushVolume(register afs_int32 vid);
+extern int DFlushEntry(register afs_int32 *fid);
+
+/* The kernel uses different versions of these, and prototypes them
+ in afs_prototypes.h */
+#ifndef KERNEL
+extern int DInit(int abuffers);
+extern void *DRead(register afs_int32 *fid, register int page);
+extern int DFlush();
+extern void *DNew(register afs_int32 *fid, register int page);
+extern void DZap(register afs_int32 *fid);
+#endif
+
+#ifdef KERNEL
+extern int afs_dir_NameBlobs(char *name);
+extern int afs_dir_Create(void *dir, char *entry, void *vfid);
+extern int afs_dir_Length(void *dir);
+extern int afs_dir_Delete(void *dir, char *entry);
+extern int afs_dir_MakeDir(void *dir, afs_int32 * me, afs_int32 * parent);
+extern int afs_dir_Lookup(void *dir, char *entry, void *fid);
+extern int afs_dir_LookupOffset(void *dir, char *entry, void *fid,
+ long *offsetp);
+extern int afs_dir_EnumerateDir(void *dir,
+ int (*hookproc) (void *dir, char *name,
+ afs_int32 vnode,
+ afs_int32 unique),
+ void *hook);
+extern int afs_dir_IsEmpty(void *dir);
+extern struct DirEntry *afs_dir_GetBlob(void *dir, afs_int32 blobno);
+#endif
+
+#endif /* !defined(__AFS_DIR_H) */
git://git.openafs.org / openafs.git / blobdiff