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[PATCH v3 12/25] tools/xenstore: remove tdb code



Now that TDB isn't used anymore, remove it.

Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
Reviewed-by: Julien Grall <jgrall@xxxxxxxxxx>
---
 tools/xenstore/Makefile.common |    2 +-
 tools/xenstore/tdb.c           | 1748 --------------------------------
 tools/xenstore/tdb.h           |  132 ---
 3 files changed, 1 insertion(+), 1881 deletions(-)
 delete mode 100644 tools/xenstore/tdb.c
 delete mode 100644 tools/xenstore/tdb.h

diff --git a/tools/xenstore/Makefile.common b/tools/xenstore/Makefile.common
index 657a16849e..3259ab51e6 100644
--- a/tools/xenstore/Makefile.common
+++ b/tools/xenstore/Makefile.common
@@ -2,7 +2,7 @@
 
 XENSTORED_OBJS-y := xenstored_core.o xenstored_watch.o xenstored_domain.o
 XENSTORED_OBJS-y += xenstored_transaction.o xenstored_control.o xenstored_lu.o
-XENSTORED_OBJS-y += talloc.o utils.o tdb.o hashtable.o
+XENSTORED_OBJS-y += talloc.o utils.o hashtable.o
 
 XENSTORED_OBJS-$(CONFIG_Linux) += xenstored_posix.o xenstored_lu_daemon.o
 XENSTORED_OBJS-$(CONFIG_NetBSD) += xenstored_posix.o xenstored_lu_daemon.o
diff --git a/tools/xenstore/tdb.c b/tools/xenstore/tdb.c
deleted file mode 100644
index 29593b76c3..0000000000
--- a/tools/xenstore/tdb.c
+++ /dev/null
@@ -1,1748 +0,0 @@
- /* 
-   Unix SMB/CIFS implementation.
-
-   trivial database library
-
-   Copyright (C) Andrew Tridgell              1999-2004
-   Copyright (C) Paul `Rusty' Russell             2000
-   Copyright (C) Jeremy Allison                           2000-2003
-   
-     ** NOTE! The following LGPL license applies to the tdb
-     ** library. This does NOT imply that all of Samba is released
-     ** under the LGPL
-   
-   This library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2 of the License, or (at your option) any later version.
-
-   This library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with this library; If not, see <http://www.gnu.org/licenses/>.
-*/
-
-
-#ifndef _SAMBA_BUILD_
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <stdint.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <string.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <sys/mman.h>
-#include <sys/stat.h>
-#include "tdb.h"
-#include <stdarg.h>
-#include "talloc.h"
-#undef HAVE_MMAP
-#else
-#include "includes.h"
-#include "lib/tdb/include/tdb.h"
-#include "system/time.h"
-#include "system/shmem.h"
-#include "system/filesys.h"
-#endif
-
-#define TDB_MAGIC_FOOD "TDB file\n"
-#define TDB_VERSION (0x26011967 + 7)
-#define TDB_MAGIC (0x26011999U)
-#define TDB_FREE_MAGIC (~TDB_MAGIC)
-#define TDB_DEAD_MAGIC (0xFEE1DEAD)
-#define TDB_ALIGNMENT 4
-#define MIN_REC_SIZE (2*sizeof(struct list_struct) + TDB_ALIGNMENT)
-#define DEFAULT_HASH_SIZE 131
-#define TDB_PAGE_SIZE 0x2000
-#define FREELIST_TOP (sizeof(struct tdb_header))
-#define TDB_ALIGN(x,a) (((x) + (a)-1) & ~((a)-1))
-#define TDB_BYTEREV(x) 
(((((x)&0xff)<<24)|((x)&0xFF00)<<8)|(((x)>>8)&0xFF00)|((x)>>24))
-#define TDB_DEAD(r) ((r)->magic == TDB_DEAD_MAGIC)
-#define TDB_BAD_MAGIC(r) ((r)->magic != TDB_MAGIC && !TDB_DEAD(r))
-#define TDB_HASH_TOP(hash) (FREELIST_TOP + (BUCKET(hash)+1)*sizeof(tdb_off))
-#define TDB_DATA_START(hash_size) (TDB_HASH_TOP(hash_size-1))
-
-
-/* NB assumes there is a local variable called "tdb" that is the
- * current context, also takes doubly-parenthesized print-style
- * argument. */
-#define TDB_LOG(x) tdb->log_fn x
-
-/* lock offsets */
-#define GLOBAL_LOCK 0
-#define ACTIVE_LOCK 4
-
-#ifndef MAP_FILE
-#define MAP_FILE 0
-#endif
-
-#ifndef MAP_FAILED
-#define MAP_FAILED ((void *)-1)
-#endif
-
-#ifndef discard_const_p
-# if defined(__intptr_t_defined) || defined(HAVE_INTPTR_T)
-#  define discard_const(ptr) ((void *)((intptr_t)(ptr)))
-# else
-#  define discard_const(ptr) ((void *)(ptr))
-# endif
-# define discard_const_p(type, ptr) ((type *)discard_const(ptr))
-#endif
-
-/* free memory if the pointer is valid and zero the pointer */
-#ifndef SAFE_FREE
-#define SAFE_FREE(x) do { if ((x) != NULL) {talloc_free(discard_const_p(void 
*, (x))); (x)=NULL;} } while(0)
-#endif
-
-#define BUCKET(hash) ((hash) % tdb->header.hash_size)
-static TDB_DATA tdb_null;
-
-/* all contexts, to ensure no double-opens (fcntl locks don't nest!) */
-static TDB_CONTEXT *tdbs = NULL;
-
-static int tdb_munmap(TDB_CONTEXT *tdb)
-{
-       if (tdb->flags & TDB_INTERNAL)
-               return 0;
-
-#ifdef HAVE_MMAP
-       if (tdb->map_ptr) {
-               int ret = munmap(tdb->map_ptr, tdb->map_size);
-               if (ret != 0)
-                       return ret;
-       }
-#endif
-       tdb->map_ptr = NULL;
-       return 0;
-}
-
-static void tdb_mmap(TDB_CONTEXT *tdb)
-{
-       if (tdb->flags & TDB_INTERNAL)
-               return;
-
-#ifdef HAVE_MMAP
-       if (!(tdb->flags & TDB_NOMMAP)) {
-               tdb->map_ptr = mmap(NULL, tdb->map_size, 
-                                   PROT_READ|(tdb->read_only? 0:PROT_WRITE), 
-                                   MAP_SHARED|MAP_FILE, tdb->fd, 0);
-
-               /*
-                * NB. When mmap fails it returns MAP_FAILED *NOT* NULL !!!!
-                */
-
-               if (tdb->map_ptr == MAP_FAILED) {
-                       tdb->map_ptr = NULL;
-                       TDB_LOG((tdb, 2, "tdb_mmap failed for size %d (%s)\n", 
-                                tdb->map_size, strerror(errno)));
-               }
-       } else {
-               tdb->map_ptr = NULL;
-       }
-#else
-       tdb->map_ptr = NULL;
-#endif
-}
-
-/* Endian conversion: we only ever deal with 4 byte quantities */
-static void *convert(void *buf, uint32_t size)
-{
-       uint32_t i, *p = buf;
-       for (i = 0; i < size / 4; i++)
-               p[i] = TDB_BYTEREV(p[i]);
-       return buf;
-}
-#define DOCONV() (tdb->flags & TDB_CONVERT)
-#define CONVERT(x) (DOCONV() ? convert(&x, sizeof(x)) : &x)
-
-/* the body of the database is made of one list_struct for the free space
-   plus a separate data list for each hash value */
-struct list_struct {
-       tdb_off next; /* offset of the next record in the list */
-       tdb_len rec_len; /* total byte length of record */
-       tdb_len key_len; /* byte length of key */
-       tdb_len data_len; /* byte length of data */
-       uint32_t full_hash; /* the full 32 bit hash of the key */
-       uint32_t magic;   /* try to catch errors */
-       /* the following union is implied:
-               union {
-                       char record[rec_len];
-                       struct {
-                               char key[key_len];
-                               char data[data_len];
-                       }
-                       uint32_t totalsize; (tailer)
-               }
-       */
-};
-
-/* a byte range locking function - return 0 on success
-   this functions locks/unlocks 1 byte at the specified offset.
-
-   On error, errno is also set so that errors are passed back properly
-   through tdb_open(). */
-static int tdb_brlock(TDB_CONTEXT *tdb, tdb_off offset, 
-                     int rw_type, int lck_type, int probe)
-{
-       struct flock fl;
-       int ret;
-
-       if (tdb->flags & TDB_NOLOCK)
-               return 0;
-       if ((rw_type == F_WRLCK) && (tdb->read_only)) {
-               errno = EACCES;
-               return -1;
-       }
-
-       fl.l_type = rw_type;
-       fl.l_whence = SEEK_SET;
-       fl.l_start = offset;
-       fl.l_len = 1;
-       fl.l_pid = 0;
-
-       do {
-               ret = fcntl(tdb->fd,lck_type,&fl);
-       } while (ret == -1 && errno == EINTR);
-
-       if (ret == -1) {
-               if (!probe && lck_type != F_SETLK) {
-                       /* Ensure error code is set for log fun to examine. */
-                       tdb->ecode = TDB_ERR_LOCK;
-                       TDB_LOG((tdb, 5,"tdb_brlock failed (fd=%d) at offset %d 
rw_type=%d lck_type=%d\n", 
-                                tdb->fd, offset, rw_type, lck_type));
-               }
-               /* Generic lock error. errno set by fcntl.
-                * EAGAIN is an expected return from non-blocking
-                * locks. */
-               if (errno != EAGAIN) {
-               TDB_LOG((tdb, 5, "tdb_brlock failed (fd=%d) at offset %d 
rw_type=%d lck_type=%d: %s\n", 
-                                tdb->fd, offset, rw_type, lck_type, 
-                                strerror(errno)));
-               }
-               return TDB_ERRCODE(TDB_ERR_LOCK, -1);
-       }
-       return 0;
-}
-
-/* lock a list in the database. list -1 is the alloc list */
-static int tdb_lock(TDB_CONTEXT *tdb, int list, int ltype)
-{
-       if (list < -1 || list >= (int)tdb->header.hash_size) {
-               TDB_LOG((tdb, 0,"tdb_lock: invalid list %d for ltype=%d\n", 
-                          list, ltype));
-               return -1;
-       }
-       if (tdb->flags & TDB_NOLOCK)
-               return 0;
-
-       /* Since fcntl locks don't nest, we do a lock for the first one,
-          and simply bump the count for future ones */
-       if (tdb->locked[list+1].count == 0) {
-               if (tdb_brlock(tdb,FREELIST_TOP+4*list,ltype,F_SETLKW, 0)) {
-                       TDB_LOG((tdb, 0,"tdb_lock failed on list %d ltype=%d 
(%s)\n", 
-                                          list, ltype, strerror(errno)));
-                       return -1;
-               }
-               tdb->locked[list+1].ltype = ltype;
-       }
-       tdb->locked[list+1].count++;
-       return 0;
-}
-
-/* unlock the database: returns void because it's too late for errors. */
-       /* changed to return int it may be interesting to know there
-          has been an error  --simo */
-static int tdb_unlock(TDB_CONTEXT *tdb, int list,
-                     int ltype __attribute__((unused)))
-{
-       int ret = -1;
-
-       if (tdb->flags & TDB_NOLOCK)
-               return 0;
-
-       /* Sanity checks */
-       if (list < -1 || list >= (int)tdb->header.hash_size) {
-               TDB_LOG((tdb, 0, "tdb_unlock: list %d invalid (%d)\n", list, 
tdb->header.hash_size));
-               return ret;
-       }
-
-       if (tdb->locked[list+1].count==0) {
-               TDB_LOG((tdb, 0, "tdb_unlock: count is 0\n"));
-               return ret;
-       }
-
-       if (tdb->locked[list+1].count == 1) {
-               /* Down to last nested lock: unlock underneath */
-               ret = tdb_brlock(tdb, FREELIST_TOP+4*list, F_UNLCK, F_SETLKW, 
0);
-       } else {
-               ret = 0;
-       }
-       tdb->locked[list+1].count--;
-
-       if (ret)
-               TDB_LOG((tdb, 0,"tdb_unlock: An error occurred unlocking!\n")); 
-       return ret;
-}
-
-/* This is based on the hash algorithm from gdbm */
-static uint32_t default_tdb_hash(TDB_DATA *key)
-{
-       uint32_t value; /* Used to compute the hash value.  */
-       uint32_t   i;   /* Used to cycle through random values. */
-
-       /* Set the initial value from the key size. */
-       for (value = 0x238F13AF * key->dsize, i=0; i < key->dsize; i++)
-               value = (value + (key->dptr[i] << (i*5 % 24)));
-
-       return (1103515243 * value + 12345);  
-}
-
-/* check for an out of bounds access - if it is out of bounds then
-   see if the database has been expanded by someone else and expand
-   if necessary 
-   note that "len" is the minimum length needed for the db
-*/
-static int tdb_oob(TDB_CONTEXT *tdb, tdb_off len, int probe)
-{
-       struct stat st;
-       if (len <= tdb->map_size)
-               return 0;
-       if (tdb->flags & TDB_INTERNAL) {
-               if (!probe) {
-                       /* Ensure ecode is set for log fn. */
-                       tdb->ecode = TDB_ERR_IO;
-                       TDB_LOG((tdb, 0,"tdb_oob len %d beyond internal malloc 
size %d\n",
-                                (int)len, (int)tdb->map_size));
-               }
-               return TDB_ERRCODE(TDB_ERR_IO, -1);
-       }
-
-       if (fstat(tdb->fd, &st) == -1)
-               return TDB_ERRCODE(TDB_ERR_IO, -1);
-
-       if (st.st_size < (off_t)len) {
-               if (!probe) {
-                       /* Ensure ecode is set for log fn. */
-                       tdb->ecode = TDB_ERR_IO;
-                       TDB_LOG((tdb, 0,"tdb_oob len %d beyond eof at %d\n",
-                                (int)len, (int)st.st_size));
-               }
-               return TDB_ERRCODE(TDB_ERR_IO, -1);
-       }
-
-       /* Unmap, update size, remap */
-       if (tdb_munmap(tdb) == -1)
-               return TDB_ERRCODE(TDB_ERR_IO, -1);
-       tdb->map_size = st.st_size;
-       tdb_mmap(tdb);
-       return 0;
-}
-
-/* write a lump of data at a specified offset */
-static int tdb_write(TDB_CONTEXT *tdb, tdb_off off, void *buf, tdb_len len)
-{
-       if (tdb_oob(tdb, off + len, 0) != 0)
-               return -1;
-
-       if (tdb->map_ptr)
-               memcpy(off + (char *)tdb->map_ptr, buf, len);
-#ifdef HAVE_PWRITE
-       else if (pwrite(tdb->fd, buf, len, off) != (ssize_t)len) {
-#else
-       else if (lseek(tdb->fd, off, SEEK_SET) != (off_t)off
-                || write(tdb->fd, buf, len) != (off_t)len) {
-#endif
-               /* Ensure ecode is set for log fn. */
-               tdb->ecode = TDB_ERR_IO;
-               TDB_LOG((tdb, 0,"tdb_write failed at %d len=%d (%s)\n",
-                          off, len, strerror(errno)));
-               return TDB_ERRCODE(TDB_ERR_IO, -1);
-       }
-       return 0;
-}
-
-/* read a lump of data at a specified offset, maybe convert */
-static int tdb_read(TDB_CONTEXT *tdb,tdb_off off,void *buf,tdb_len len,int cv)
-{
-       if (tdb_oob(tdb, off + len, 0) != 0)
-               return -1;
-
-       if (tdb->map_ptr)
-               memcpy(buf, off + (char *)tdb->map_ptr, len);
-#ifdef HAVE_PREAD
-       else if (pread(tdb->fd, buf, len, off) != (off_t)len) {
-#else
-       else if (lseek(tdb->fd, off, SEEK_SET) != (off_t)off
-                || read(tdb->fd, buf, len) != (off_t)len) {
-#endif
-               /* Ensure ecode is set for log fn. */
-               tdb->ecode = TDB_ERR_IO;
-               TDB_LOG((tdb, 0,"tdb_read failed at %d len=%d (%s)\n",
-                          off, len, strerror(errno)));
-               return TDB_ERRCODE(TDB_ERR_IO, -1);
-       }
-       if (cv)
-               convert(buf, len);
-       return 0;
-}
-
-/* don't allocate memory: used in tdb_delete path. */
-static int tdb_key_eq(TDB_CONTEXT *tdb, tdb_off off, TDB_DATA key)
-{
-       char buf[64];
-       uint32_t len;
-
-       if (tdb_oob(tdb, off + key.dsize, 0) != 0)
-               return -1;
-
-       if (tdb->map_ptr)
-               return !memcmp(off + (char*)tdb->map_ptr, key.dptr, key.dsize);
-
-       while (key.dsize) {
-               len = key.dsize;
-               if (len > sizeof(buf))
-                       len = sizeof(buf);
-               if (tdb_read(tdb, off, buf, len, 0) != 0)
-                       return -1;
-               if (memcmp(buf, key.dptr, len) != 0)
-                       return 0;
-               key.dptr += len;
-               key.dsize -= len;
-               off += len;
-       }
-       return 1;
-}
-
-/* read a lump of data, allocating the space for it */
-static char *tdb_alloc_read(TDB_CONTEXT *tdb, tdb_off offset, tdb_len len)
-{
-       char *buf;
-
-       if (!(buf = talloc_size(tdb, len))) {
-               /* Ensure ecode is set for log fn. */
-               tdb->ecode = TDB_ERR_OOM;
-               TDB_LOG((tdb, 0,"tdb_alloc_read malloc failed len=%d (%s)\n",
-                          len, strerror(errno)));
-               return TDB_ERRCODE(TDB_ERR_OOM, buf);
-       }
-       if (tdb_read(tdb, offset, buf, len, 0) == -1) {
-               SAFE_FREE(buf);
-               return NULL;
-       }
-       return buf;
-}
-
-/* read/write a tdb_off */
-static int ofs_read(TDB_CONTEXT *tdb, tdb_off offset, tdb_off *d)
-{
-       return tdb_read(tdb, offset, (char*)d, sizeof(*d), DOCONV());
-}
-static int ofs_write(TDB_CONTEXT *tdb, tdb_off offset, tdb_off *d)
-{
-       tdb_off off = *d;
-       return tdb_write(tdb, offset, CONVERT(off), sizeof(*d));
-}
-
-/* read/write a record */
-static int rec_read(TDB_CONTEXT *tdb, tdb_off offset, struct list_struct *rec)
-{
-       if (tdb_read(tdb, offset, rec, sizeof(*rec),DOCONV()) == -1)
-               return -1;
-       if (TDB_BAD_MAGIC(rec)) {
-               /* Ensure ecode is set for log fn. */
-               tdb->ecode = TDB_ERR_CORRUPT;
-               TDB_LOG((tdb, 0,"rec_read bad magic 0x%x at offset=%d\n", 
rec->magic, offset));
-               return TDB_ERRCODE(TDB_ERR_CORRUPT, -1);
-       }
-       return tdb_oob(tdb, rec->next+sizeof(*rec), 0);
-}
-static int rec_write(TDB_CONTEXT *tdb, tdb_off offset, struct list_struct *rec)
-{
-       struct list_struct r = *rec;
-       return tdb_write(tdb, offset, CONVERT(r), sizeof(r));
-}
-
-/* read a freelist record and check for simple errors */
-static int rec_free_read(TDB_CONTEXT *tdb, tdb_off off, struct list_struct 
*rec)
-{
-       if (tdb_read(tdb, off, rec, sizeof(*rec),DOCONV()) == -1)
-               return -1;
-
-       if (rec->magic == TDB_MAGIC) {
-               /* this happens when a app is showdown while deleting a record 
- we should
-                  not completely fail when this happens */
-               TDB_LOG((tdb, 0,"rec_free_read non-free magic 0x%x at offset=%d 
- fixing\n", 
-                        rec->magic, off));
-               rec->magic = TDB_FREE_MAGIC;
-               if (tdb_write(tdb, off, rec, sizeof(*rec)) == -1)
-                       return -1;
-       }
-
-       if (rec->magic != TDB_FREE_MAGIC) {
-               /* Ensure ecode is set for log fn. */
-               tdb->ecode = TDB_ERR_CORRUPT;
-               TDB_LOG((tdb, 0,"rec_free_read bad magic 0x%x at offset=%d\n", 
-                          rec->magic, off));
-               return TDB_ERRCODE(TDB_ERR_CORRUPT, -1);
-       }
-       if (tdb_oob(tdb, rec->next+sizeof(*rec), 0) != 0)
-               return -1;
-       return 0;
-}
-
-/* update a record tailer (must hold allocation lock) */
-static int update_tailer(TDB_CONTEXT *tdb, tdb_off offset,
-                        const struct list_struct *rec)
-{
-       tdb_off totalsize;
-
-       /* Offset of tailer from record header */
-       totalsize = sizeof(*rec) + rec->rec_len;
-       return ofs_write(tdb, offset + totalsize - sizeof(tdb_off),
-                        &totalsize);
-}
-
-/* Remove an element from the freelist.  Must have alloc lock. */
-static int remove_from_freelist(TDB_CONTEXT *tdb, tdb_off off, tdb_off next)
-{
-       tdb_off last_ptr, i;
-
-       /* read in the freelist top */
-       last_ptr = FREELIST_TOP;
-       while (ofs_read(tdb, last_ptr, &i) != -1 && i != 0) {
-               if (i == off) {
-                       /* We've found it! */
-                       return ofs_write(tdb, last_ptr, &next);
-               }
-               /* Follow chain (next offset is at start of record) */
-               last_ptr = i;
-       }
-       TDB_LOG((tdb, 0,"remove_from_freelist: not on list at off=%d\n", off));
-       return TDB_ERRCODE(TDB_ERR_CORRUPT, -1);
-}
-
-/* Add an element into the freelist. Merge adjacent records if
-   neccessary. */
-static int tdb_free(TDB_CONTEXT *tdb, tdb_off offset, struct list_struct *rec)
-{
-       tdb_off right, left;
-
-       /* Allocation and tailer lock */
-       if (tdb_lock(tdb, -1, F_WRLCK) != 0)
-               return -1;
-
-       /* set an initial tailer, so if we fail we don't leave a bogus record */
-       if (update_tailer(tdb, offset, rec) != 0) {
-               TDB_LOG((tdb, 0, "tdb_free: upfate_tailer failed!\n"));
-               goto fail;
-       }
-
-       /* Look right first (I'm an Australian, dammit) */
-       right = offset + sizeof(*rec) + rec->rec_len;
-       if (right + sizeof(*rec) <= tdb->map_size) {
-               struct list_struct r;
-
-               if (tdb_read(tdb, right, &r, sizeof(r), DOCONV()) == -1) {
-                       TDB_LOG((tdb, 0, "tdb_free: right read failed at %u\n", 
right));
-                       goto left;
-               }
-
-               /* If it's free, expand to include it. */
-               if (r.magic == TDB_FREE_MAGIC) {
-                       if (remove_from_freelist(tdb, right, r.next) == -1) {
-                               TDB_LOG((tdb, 0, "tdb_free: right free failed 
at %u\n", right));
-                               goto left;
-                       }
-                       rec->rec_len += sizeof(r) + r.rec_len;
-               }
-       }
-
-left:
-       /* Look left */
-       left = offset - sizeof(tdb_off);
-       if (left > TDB_DATA_START(tdb->header.hash_size)) {
-               struct list_struct l;
-               tdb_off leftsize;
-               
-               /* Read in tailer and jump back to header */
-               if (ofs_read(tdb, left, &leftsize) == -1) {
-                       TDB_LOG((tdb, 0, "tdb_free: left offset read failed at 
%u\n", left));
-                       goto update;
-               }
-               left = offset - leftsize;
-
-               /* Now read in record */
-               if (tdb_read(tdb, left, &l, sizeof(l), DOCONV()) == -1) {
-                       TDB_LOG((tdb, 0, "tdb_free: left read failed at %u 
(%u)\n", left, leftsize));
-                       goto update;
-               }
-
-               /* If it's free, expand to include it. */
-               if (l.magic == TDB_FREE_MAGIC) {
-                       if (remove_from_freelist(tdb, left, l.next) == -1) {
-                               TDB_LOG((tdb, 0, "tdb_free: left free failed at 
%u\n", left));
-                               goto update;
-                       } else {
-                               offset = left;
-                               rec->rec_len += leftsize;
-                       }
-               }
-       }
-
-update:
-       if (update_tailer(tdb, offset, rec) == -1) {
-               TDB_LOG((tdb, 0, "tdb_free: update_tailer failed at %u\n", 
offset));
-               goto fail;
-       }
-
-       /* Now, prepend to free list */
-       rec->magic = TDB_FREE_MAGIC;
-
-       if (ofs_read(tdb, FREELIST_TOP, &rec->next) == -1 ||
-           rec_write(tdb, offset, rec) == -1 ||
-           ofs_write(tdb, FREELIST_TOP, &offset) == -1) {
-               TDB_LOG((tdb, 0, "tdb_free record write failed at offset=%d\n", 
offset));
-               goto fail;
-       }
-
-       /* And we're done. */
-       tdb_unlock(tdb, -1, F_WRLCK);
-       return 0;
-
- fail:
-       tdb_unlock(tdb, -1, F_WRLCK);
-       return -1;
-}
-
-
-/* expand a file.  we prefer to use ftruncate, as that is what posix
-  says to use for mmap expansion */
-static int expand_file(TDB_CONTEXT *tdb, tdb_off size, tdb_off addition)
-{
-       char buf[1024];
-#ifdef HAVE_FTRUNCATE_EXTEND
-       if (ftruncate(tdb->fd, size+addition) != 0) {
-               TDB_LOG((tdb, 0, "expand_file ftruncate to %d failed (%s)\n", 
-                          size+addition, strerror(errno)));
-               return -1;
-       }
-#else
-       char b = 0;
-
-#ifdef HAVE_PWRITE
-       if (pwrite(tdb->fd,  &b, 1, (size+addition) - 1) != 1) {
-#else
-       if (lseek(tdb->fd, (size+addition) - 1, SEEK_SET) != 
(off_t)(size+addition) - 1 || 
-           write(tdb->fd, &b, 1) != 1) {
-#endif
-               TDB_LOG((tdb, 0, "expand_file to %d failed (%s)\n", 
-                          size+addition, strerror(errno)));
-               return -1;
-       }
-#endif
-
-       /* now fill the file with something. This ensures that the file isn't 
sparse, which would be
-          very bad if we ran out of disk. This must be done with write, not 
via mmap */
-       memset(buf, 0x42, sizeof(buf));
-       while (addition) {
-               int n = addition>sizeof(buf)?sizeof(buf):addition;
-#ifdef HAVE_PWRITE
-               int ret = pwrite(tdb->fd, buf, n, size);
-#else
-               int ret;
-               if (lseek(tdb->fd, size, SEEK_SET) != (off_t)size)
-                       return -1;
-               ret = write(tdb->fd, buf, n);
-#endif
-               if (ret != n) {
-                       TDB_LOG((tdb, 0, "expand_file write of %d failed 
(%s)\n", 
-                                  n, strerror(errno)));
-                       return -1;
-               }
-               addition -= n;
-               size += n;
-       }
-       return 0;
-}
-
-
-/* expand the database at least size bytes by expanding the underlying
-   file and doing the mmap again if necessary */
-static int tdb_expand(TDB_CONTEXT *tdb, tdb_off size)
-{
-       struct list_struct rec;
-       tdb_off offset;
-
-       if (tdb_lock(tdb, -1, F_WRLCK) == -1) {
-               TDB_LOG((tdb, 0, "lock failed in tdb_expand\n"));
-               return -1;
-       }
-
-       /* must know about any previous expansions by another process */
-       tdb_oob(tdb, tdb->map_size + 1, 1);
-
-       /* always make room for at least 10 more records, and round
-           the database up to a multiple of TDB_PAGE_SIZE */
-       size = TDB_ALIGN(tdb->map_size + size*10, TDB_PAGE_SIZE) - 
tdb->map_size;
-
-       if (!(tdb->flags & TDB_INTERNAL))
-               tdb_munmap(tdb);
-
-       /*
-        * We must ensure the file is unmapped before doing this
-        * to ensure consistency with systems like OpenBSD where
-        * writes and mmaps are not consistent.
-        */
-
-       /* expand the file itself */
-       if (!(tdb->flags & TDB_INTERNAL)) {
-               if (expand_file(tdb, tdb->map_size, size) != 0)
-                       goto fail;
-       }
-
-       tdb->map_size += size;
-
-       if (tdb->flags & TDB_INTERNAL) {
-               char *new_map_ptr = talloc_realloc_size(tdb, tdb->map_ptr,
-                                                       tdb->map_size);
-               if (!new_map_ptr) {
-                       tdb->map_size -= size;
-                       goto fail;
-               }
-               tdb->map_ptr = new_map_ptr;
-       } else {
-               /*
-                * We must ensure the file is remapped before adding the space
-                * to ensure consistency with systems like OpenBSD where
-                * writes and mmaps are not consistent.
-                */
-
-               /* We're ok if the mmap fails as we'll fallback to read/write */
-               tdb_mmap(tdb);
-       }
-
-       /* form a new freelist record */
-       memset(&rec,'\0',sizeof(rec));
-       rec.rec_len = size - sizeof(rec);
-
-       /* link it into the free list */
-       offset = tdb->map_size - size;
-       if (tdb_free(tdb, offset, &rec) == -1)
-               goto fail;
-
-       tdb_unlock(tdb, -1, F_WRLCK);
-       return 0;
- fail:
-       tdb_unlock(tdb, -1, F_WRLCK);
-       return -1;
-}
-
-
-/* 
-   the core of tdb_allocate - called when we have decided which
-   free list entry to use
- */
-static tdb_off tdb_allocate_ofs(TDB_CONTEXT *tdb, tdb_len length, tdb_off 
rec_ptr,
-                               struct list_struct *rec, tdb_off last_ptr)
-{
-       struct list_struct newrec;
-       tdb_off newrec_ptr;
-
-       memset(&newrec, '\0', sizeof(newrec));
-
-       /* found it - now possibly split it up  */
-       if (rec->rec_len > length + MIN_REC_SIZE) {
-               /* Length of left piece */
-               length = TDB_ALIGN(length, TDB_ALIGNMENT);
-               
-               /* Right piece to go on free list */
-               newrec.rec_len = rec->rec_len - (sizeof(*rec) + length);
-               newrec_ptr = rec_ptr + sizeof(*rec) + length;
-               
-               /* And left record is shortened */
-               rec->rec_len = length;
-       } else {
-               newrec_ptr = 0;
-       }
-       
-       /* Remove allocated record from the free list */
-       if (ofs_write(tdb, last_ptr, &rec->next) == -1) {
-               return 0;
-       }
-       
-       /* Update header: do this before we drop alloc
-          lock, otherwise tdb_free() might try to
-          merge with us, thinking we're free.
-          (Thanks Jeremy Allison). */
-       rec->magic = TDB_MAGIC;
-       if (rec_write(tdb, rec_ptr, rec) == -1) {
-               return 0;
-       }
-       
-       /* Did we create new block? */
-       if (newrec_ptr) {
-               /* Update allocated record tailer (we
-                  shortened it). */
-               if (update_tailer(tdb, rec_ptr, rec) == -1) {
-                       return 0;
-               }
-               
-               /* Free new record */
-               if (tdb_free(tdb, newrec_ptr, &newrec) == -1) {
-                       return 0;
-               }
-       }
-       
-       /* all done - return the new record offset */
-       return rec_ptr;
-}
-
-/* allocate some space from the free list. The offset returned points
-   to a unconnected list_struct within the database with room for at
-   least length bytes of total data
-
-   0 is returned if the space could not be allocated
- */
-static tdb_off tdb_allocate(TDB_CONTEXT *tdb, tdb_len length,
-                           struct list_struct *rec)
-{
-       tdb_off rec_ptr, last_ptr, newrec_ptr;
-       struct {
-               tdb_off rec_ptr, last_ptr;
-               tdb_len rec_len;
-       } bestfit = { 0, 0, 0 };
-
-       if (tdb_lock(tdb, -1, F_WRLCK) == -1)
-               return 0;
-
-       /* Extra bytes required for tailer */
-       length += sizeof(tdb_off);
-
- again:
-       last_ptr = FREELIST_TOP;
-
-       /* read in the freelist top */
-       if (ofs_read(tdb, FREELIST_TOP, &rec_ptr) == -1)
-               goto fail;
-
-       bestfit.rec_ptr = 0;
-
-       /* 
-          this is a best fit allocation strategy. Originally we used
-          a first fit strategy, but it suffered from massive fragmentation
-          issues when faced with a slowly increasing record size.
-        */
-       while (rec_ptr) {
-               if (rec_free_read(tdb, rec_ptr, rec) == -1) {
-                       goto fail;
-               }
-
-               if (rec->rec_len >= length) {
-                       if (bestfit.rec_ptr == 0 ||
-                           rec->rec_len < bestfit.rec_len) {
-                               bestfit.rec_len = rec->rec_len;
-                               bestfit.rec_ptr = rec_ptr;
-                               bestfit.last_ptr = last_ptr;
-                               /* consider a fit to be good enough if we 
aren't wasting more than half the space */
-                               if (bestfit.rec_len < 2*length) {
-                                       break;
-                               }
-                       }
-               }
-
-               /* move to the next record */
-               last_ptr = rec_ptr;
-               rec_ptr = rec->next;
-       }
-
-       if (bestfit.rec_ptr != 0) {
-               if (rec_free_read(tdb, bestfit.rec_ptr, rec) == -1) {
-                       goto fail;
-               }
-
-               newrec_ptr = tdb_allocate_ofs(tdb, length, bestfit.rec_ptr, 
rec, bestfit.last_ptr);
-               tdb_unlock(tdb, -1, F_WRLCK);
-               return newrec_ptr;
-       }
-
-       /* we didn't find enough space. See if we can expand the
-          database and if we can then try again */
-       if (tdb_expand(tdb, length + sizeof(*rec)) == 0)
-               goto again;
- fail:
-       tdb_unlock(tdb, -1, F_WRLCK);
-       return 0;
-}
-
-/* initialise a new database with a specified hash size */
-static int tdb_new_database(TDB_CONTEXT *tdb, int hash_size)
-{
-       struct tdb_header *newdb;
-       int size, ret = -1;
-
-       /* We make it up in memory, then write it out if not internal */
-       size = sizeof(struct tdb_header) + (hash_size+1)*sizeof(tdb_off);
-       if (!(newdb = talloc_zero_size(tdb, size)))
-               return TDB_ERRCODE(TDB_ERR_OOM, -1);
-
-       /* Fill in the header */
-       newdb->version = TDB_VERSION;
-       newdb->hash_size = hash_size;
-       if (tdb->flags & TDB_INTERNAL) {
-               tdb->map_size = size;
-               tdb->map_ptr = (char *)newdb;
-               memcpy(&tdb->header, newdb, sizeof(tdb->header));
-               /* Convert the `ondisk' version if asked. */
-               CONVERT(*newdb);
-               return 0;
-       }
-       if (lseek(tdb->fd, 0, SEEK_SET) == -1)
-               goto fail;
-
-       if (ftruncate(tdb->fd, 0) == -1)
-               goto fail;
-
-       /* This creates an endian-converted header, as if read from disk */
-       CONVERT(*newdb);
-       memcpy(&tdb->header, newdb, sizeof(tdb->header));
-       /* Don't endian-convert the magic food! */
-       memcpy(newdb->magic_food, TDB_MAGIC_FOOD, strlen(TDB_MAGIC_FOOD)+1);
-       if (write(tdb->fd, newdb, size) != size)
-               ret = -1;
-       else
-               ret = 0;
-
-  fail:
-       SAFE_FREE(newdb);
-       return ret;
-}
-
-/* Returns 0 on fail.  On success, return offset of record, and fills
-   in rec */
-static tdb_off tdb_find(TDB_CONTEXT *tdb, TDB_DATA key, uint32_t hash,
-                       struct list_struct *r)
-{
-       tdb_off rec_ptr;
-       
-       /* read in the hash top */
-       if (ofs_read(tdb, TDB_HASH_TOP(hash), &rec_ptr) == -1)
-               return 0;
-
-       /* keep looking until we find the right record */
-       while (rec_ptr) {
-               if (rec_read(tdb, rec_ptr, r) == -1)
-                       return 0;
-
-               if (!TDB_DEAD(r) && hash==r->full_hash && 
key.dsize==r->key_len) {
-                       /* a very likely hit - read the key */
-                       int cmp = tdb_key_eq(tdb, rec_ptr + sizeof(*r), key);
-                       if (cmp < 0)
-                               return 0;
-                       else if (cmp > 0)
-                               return rec_ptr;
-               }
-               rec_ptr = r->next;
-       }
-       return TDB_ERRCODE(TDB_ERR_NOEXIST, 0);
-}
-
-/* As tdb_find, but if you succeed, keep the lock */
-static tdb_off tdb_find_lock_hash(TDB_CONTEXT *tdb, TDB_DATA key, uint32_t 
hash, int locktype,
-                            struct list_struct *rec)
-{
-       uint32_t rec_ptr;
-
-       if (tdb_lock(tdb, BUCKET(hash), locktype) == -1)
-               return 0;
-       if (!(rec_ptr = tdb_find(tdb, key, hash, rec)))
-               tdb_unlock(tdb, BUCKET(hash), locktype);
-       return rec_ptr;
-}
-
-enum TDB_ERROR tdb_error(TDB_CONTEXT *tdb)
-{
-       return tdb->ecode;
-}
-
-static struct tdb_errname {
-       enum TDB_ERROR ecode; const char *estring;
-} emap[] = { {TDB_SUCCESS, "Success"},
-            {TDB_ERR_CORRUPT, "Corrupt database"},
-            {TDB_ERR_IO, "IO Error"},
-            {TDB_ERR_LOCK, "Locking error"},
-            {TDB_ERR_OOM, "Out of memory"},
-            {TDB_ERR_EXISTS, "Record exists"},
-            {TDB_ERR_NOLOCK, "Lock exists on other keys"},
-            {TDB_ERR_NOEXIST, "Record does not exist"} };
-
-/* Error string for the last tdb error */
-const char *tdb_errorstr(TDB_CONTEXT *tdb)
-{
-       uint32_t i;
-       for (i = 0; i < sizeof(emap) / sizeof(struct tdb_errname); i++)
-               if (tdb->ecode == emap[i].ecode)
-                       return emap[i].estring;
-       return "Invalid error code";
-}
-
-/* update an entry in place - this only works if the new data size
-   is <= the old data size and the key exists.
-   on failure return -1.
-*/
-
-static int tdb_update_hash(TDB_CONTEXT *tdb, TDB_DATA key, uint32_t hash, 
TDB_DATA dbuf)
-{
-       struct list_struct rec;
-       tdb_off rec_ptr;
-
-       /* find entry */
-       if (!(rec_ptr = tdb_find(tdb, key, hash, &rec)))
-               return -1;
-
-       /* must be long enough key, data and tailer */
-       if (rec.rec_len < key.dsize + dbuf.dsize + sizeof(tdb_off)) {
-               tdb->ecode = TDB_SUCCESS; /* Not really an error */
-               return -1;
-       }
-
-       if (tdb_write(tdb, rec_ptr + sizeof(rec) + rec.key_len,
-                     dbuf.dptr, dbuf.dsize) == -1)
-               return -1;
-
-       if (dbuf.dsize != rec.data_len) {
-               /* update size */
-               rec.data_len = dbuf.dsize;
-               return rec_write(tdb, rec_ptr, &rec);
-       }
- 
-       return 0;
-}
-
-/* find an entry in the database given a key */
-/* If an entry doesn't exist tdb_err will be set to
- * TDB_ERR_NOEXIST. If a key has no data attached
- * then the TDB_DATA will have zero length but
- * a non-zero pointer
- */
-
-TDB_DATA tdb_fetch(TDB_CONTEXT *tdb, TDB_DATA key)
-{
-       tdb_off rec_ptr;
-       struct list_struct rec;
-       TDB_DATA ret;
-       uint32_t hash;
-
-       /* find which hash bucket it is in */
-       hash = tdb->hash_fn(&key);
-       if (!(rec_ptr = tdb_find_lock_hash(tdb,key,hash,F_RDLCK,&rec)))
-               return tdb_null;
-
-       ret.dptr = tdb_alloc_read(tdb, rec_ptr + sizeof(rec) + rec.key_len,
-                                 rec.data_len);
-       ret.dsize = rec.data_len;
-       tdb_unlock(tdb, BUCKET(rec.full_hash), F_RDLCK);
-       return ret;
-}
-
-/* check if an entry in the database exists 
-
-   note that 1 is returned if the key is found and 0 is returned if not found
-   this doesn't match the conventions in the rest of this module, but is
-   compatible with gdbm
-*/
-static int tdb_exists_hash(TDB_CONTEXT *tdb, TDB_DATA key, uint32_t hash)
-{
-       struct list_struct rec;
-       
-       if (tdb_find_lock_hash(tdb, key, hash, F_RDLCK, &rec) == 0)
-               return 0;
-       tdb_unlock(tdb, BUCKET(rec.full_hash), F_RDLCK);
-       return 1;
-}
-
-/* record lock stops delete underneath */
-static int lock_record(TDB_CONTEXT *tdb, tdb_off off)
-{
-       return off ? tdb_brlock(tdb, off, F_RDLCK, F_SETLKW, 0) : 0;
-}
-/*
-  Write locks override our own fcntl readlocks, so check it here.
-  Note this is meant to be F_SETLK, *not* F_SETLKW, as it's not
-  an error to fail to get the lock here.
-*/
- 
-static int write_lock_record(TDB_CONTEXT *tdb, tdb_off off)
-{
-       struct tdb_traverse_lock *i;
-       for (i = &tdb->travlocks; i; i = i->next)
-               if (i->off == off)
-                       return -1;
-       return tdb_brlock(tdb, off, F_WRLCK, F_SETLK, 1);
-}
-
-/*
-  Note this is meant to be F_SETLK, *not* F_SETLKW, as it's not
-  an error to fail to get the lock here.
-*/
-
-static int write_unlock_record(TDB_CONTEXT *tdb, tdb_off off)
-{
-       return tdb_brlock(tdb, off, F_UNLCK, F_SETLK, 0);
-}
-/* fcntl locks don't stack: avoid unlocking someone else's */
-static int unlock_record(TDB_CONTEXT *tdb, tdb_off off)
-{
-       struct tdb_traverse_lock *i;
-       uint32_t count = 0;
-
-       if (off == 0)
-               return 0;
-       for (i = &tdb->travlocks; i; i = i->next)
-               if (i->off == off)
-                       count++;
-       return (count == 1 ? tdb_brlock(tdb, off, F_UNLCK, F_SETLKW, 0) : 0);
-}
-
-/* actually delete an entry in the database given the offset */
-static int do_delete(TDB_CONTEXT *tdb, tdb_off rec_ptr, struct list_struct*rec)
-{
-       tdb_off last_ptr, i;
-       struct list_struct lastrec;
-
-       if (tdb->read_only) return -1;
-
-       if (write_lock_record(tdb, rec_ptr) == -1) {
-               /* Someone traversing here: mark it as dead */
-               rec->magic = TDB_DEAD_MAGIC;
-               return rec_write(tdb, rec_ptr, rec);
-       }
-       if (write_unlock_record(tdb, rec_ptr) != 0)
-               return -1;
-
-       /* find previous record in hash chain */
-       if (ofs_read(tdb, TDB_HASH_TOP(rec->full_hash), &i) == -1)
-               return -1;
-       for (last_ptr = 0; i != rec_ptr; last_ptr = i, i = lastrec.next)
-               if (rec_read(tdb, i, &lastrec) == -1)
-                       return -1;
-
-       /* unlink it: next ptr is at start of record. */
-       if (last_ptr == 0)
-               last_ptr = TDB_HASH_TOP(rec->full_hash);
-       if (ofs_write(tdb, last_ptr, &rec->next) == -1)
-               return -1;
-
-       /* recover the space */
-       if (tdb_free(tdb, rec_ptr, rec) == -1)
-               return -1;
-       return 0;
-}
-
-/* Uses traverse lock: 0 = finish, -1 = error, other = record offset */
-static int tdb_next_lock(TDB_CONTEXT *tdb, struct tdb_traverse_lock *tlock,
-                        struct list_struct *rec)
-{
-       int want_next = (tlock->off != 0);
-
-       /* Lock each chain from the start one. */
-       for (; tlock->hash < tdb->header.hash_size; tlock->hash++) {
-
-               /* this is an optimisation for the common case where
-                  the hash chain is empty, which is particularly
-                  common for the use of tdb with ldb, where large
-                  hashes are used. In that case we spend most of our
-                  time in tdb_brlock(), locking empty hash chains.
-
-                  To avoid this, we do an unlocked pre-check to see
-                  if the hash chain is empty before starting to look
-                  inside it. If it is empty then we can avoid that
-                  hash chain. If it isn't empty then we can't believe
-                  the value we get back, as we read it without a
-                  lock, so instead we get the lock and re-fetch the
-                  value below.
-
-                  Notice that not doing this optimisation on the
-                  first hash chain is critical. We must guarantee
-                  that we have done at least one fcntl lock at the
-                  start of a search to guarantee that memory is
-                  coherent on SMP systems. If records are added by
-                  others during the search then thats OK, and we
-                  could possibly miss those with this trick, but we
-                  could miss them anyway without this trick, so the
-                  semantics don't change.
-
-                  With a non-indexed ldb search this trick gains us a
-                  factor of around 80 in speed on a linux 2.6.x
-                  system (testing using ldbtest).
-                */
-               if (!tlock->off && tlock->hash != 0) {
-                       uint32_t off;
-                       if (tdb->map_ptr) {
-                               for (;tlock->hash < 
tdb->header.hash_size;tlock->hash++) {
-                                       if (0 != *(uint32_t 
*)(TDB_HASH_TOP(tlock->hash) + (unsigned char *)tdb->map_ptr)) {
-                                               break;
-                                       }
-                               }
-                               if (tlock->hash == tdb->header.hash_size) {
-                                       continue;
-                               }
-                       } else {
-                               if (ofs_read(tdb, TDB_HASH_TOP(tlock->hash), 
&off) == 0 &&
-                                   off == 0) {
-                                       continue;
-                               }
-                       }
-               }
-
-               if (tdb_lock(tdb, tlock->hash, F_WRLCK) == -1)
-                       return -1;
-
-               /* No previous record?  Start at top of chain. */
-               if (!tlock->off) {
-                       if (ofs_read(tdb, TDB_HASH_TOP(tlock->hash),
-                                    &tlock->off) == -1)
-                               goto fail;
-               } else {
-                       /* Otherwise unlock the previous record. */
-                       if (unlock_record(tdb, tlock->off) != 0)
-                               goto fail;
-               }
-
-               if (want_next) {
-                       /* We have offset of old record: grab next */
-                       if (rec_read(tdb, tlock->off, rec) == -1)
-                               goto fail;
-                       tlock->off = rec->next;
-               }
-
-               /* Iterate through chain */
-               while( tlock->off) {
-                       tdb_off current;
-                       if (rec_read(tdb, tlock->off, rec) == -1)
-                               goto fail;
-
-                       /* Detect infinite loops. From "Shlomi Yaakobovich" 
<Shlomi@xxxxxxxxxx>. */
-                       if (tlock->off == rec->next) {
-                               TDB_LOG((tdb, 0, "tdb_next_lock: loop 
detected.\n"));
-                               goto fail;
-                       }
-
-                       if (!TDB_DEAD(rec)) {
-                               /* Woohoo: we found one! */
-                               if (lock_record(tdb, tlock->off) != 0)
-                                       goto fail;
-                               return tlock->off;
-                       }
-
-                       /* Try to clean dead ones from old traverses */
-                       current = tlock->off;
-                       tlock->off = rec->next;
-                       if (!tdb->read_only && 
-                           do_delete(tdb, current, rec) != 0)
-                               goto fail;
-               }
-               tdb_unlock(tdb, tlock->hash, F_WRLCK);
-               want_next = 0;
-       }
-       /* We finished iteration without finding anything */
-       return TDB_ERRCODE(TDB_SUCCESS, 0);
-
- fail:
-       tlock->off = 0;
-       if (tdb_unlock(tdb, tlock->hash, F_WRLCK) != 0)
-               TDB_LOG((tdb, 0, "tdb_next_lock: On error unlock failed!\n"));
-       return -1;
-}
-
-/* traverse the entire database - calling fn(tdb, key, data) on each element.
-   return -1 on error or the record count traversed
-   if fn is NULL then it is not called
-   a non-zero return value from fn() indicates that the traversal should stop
-  */
-int tdb_traverse(TDB_CONTEXT *tdb, tdb_traverse_func fn, void *private)
-{
-       TDB_DATA key, dbuf;
-       struct list_struct rec;
-       struct tdb_traverse_lock tl = { NULL, 0, 0 };
-       int ret, count = 0;
-
-       /* This was in the initializaton, above, but the IRIX compiler
-        * did not like it.  crh
-        */
-       tl.next = tdb->travlocks.next;
-
-       /* fcntl locks don't stack: beware traverse inside traverse */
-       tdb->travlocks.next = &tl;
-
-       /* tdb_next_lock places locks on the record returned, and its chain */
-       while ((ret = tdb_next_lock(tdb, &tl, &rec)) > 0) {
-               count++;
-               /* now read the full record */
-               key.dptr = tdb_alloc_read(tdb, tl.off + sizeof(rec), 
-                                         rec.key_len + rec.data_len);
-               if (!key.dptr) {
-                       ret = -1;
-                       if (tdb_unlock(tdb, tl.hash, F_WRLCK) != 0)
-                               goto out;
-                       if (unlock_record(tdb, tl.off) != 0)
-                               TDB_LOG((tdb, 0, "tdb_traverse: key.dptr == 
NULL and unlock_record failed!\n"));
-                       goto out;
-               }
-               key.dsize = rec.key_len;
-               dbuf.dptr = key.dptr + rec.key_len;
-               dbuf.dsize = rec.data_len;
-
-               /* Drop chain lock, call out */
-               if (tdb_unlock(tdb, tl.hash, F_WRLCK) != 0) {
-                       ret = -1;
-                       goto out;
-               }
-               if (fn && fn(tdb, key, dbuf, private)) {
-                       /* They want us to terminate traversal */
-                       ret = count;
-                       if (unlock_record(tdb, tl.off) != 0) {
-                               TDB_LOG((tdb, 0, "tdb_traverse: unlock_record 
failed!\n"));
-                               ret = -1;
-                       }
-                       tdb->travlocks.next = tl.next;
-                       SAFE_FREE(key.dptr);
-                       return count;
-               }
-               SAFE_FREE(key.dptr);
-       }
-out:
-       tdb->travlocks.next = tl.next;
-       if (ret < 0)
-               return -1;
-       else
-               return count;
-}
-
-/* find the first entry in the database and return its key */
-TDB_DATA tdb_firstkey(TDB_CONTEXT *tdb)
-{
-       TDB_DATA key;
-       struct list_struct rec;
-
-       /* release any old lock */
-       if (unlock_record(tdb, tdb->travlocks.off) != 0)
-               return tdb_null;
-       tdb->travlocks.off = tdb->travlocks.hash = 0;
-
-       if (tdb_next_lock(tdb, &tdb->travlocks, &rec) <= 0)
-               return tdb_null;
-       /* now read the key */
-       key.dsize = rec.key_len;
-       key.dptr =tdb_alloc_read(tdb,tdb->travlocks.off+sizeof(rec),key.dsize);
-       if (tdb_unlock(tdb, BUCKET(tdb->travlocks.hash), F_WRLCK) != 0)
-               TDB_LOG((tdb, 0, "tdb_firstkey: error occurred while 
tdb_unlocking!\n"));
-       return key;
-}
-
-/* find the next entry in the database, returning its key */
-TDB_DATA tdb_nextkey(TDB_CONTEXT *tdb, TDB_DATA oldkey)
-{
-       uint32_t oldhash;
-       TDB_DATA key = tdb_null;
-       struct list_struct rec;
-       char *k = NULL;
-
-       /* Is locked key the old key?  If so, traverse will be reliable. */
-       if (tdb->travlocks.off) {
-               if (tdb_lock(tdb,tdb->travlocks.hash,F_WRLCK))
-                       return tdb_null;
-               if (rec_read(tdb, tdb->travlocks.off, &rec) == -1
-                   || !(k = tdb_alloc_read(tdb,tdb->travlocks.off+sizeof(rec),
-                                           rec.key_len))
-                   || memcmp(k, oldkey.dptr, oldkey.dsize) != 0) {
-                       /* No, it wasn't: unlock it and start from scratch */
-                       if (unlock_record(tdb, tdb->travlocks.off) != 0)
-                               return tdb_null;
-                       if (tdb_unlock(tdb, tdb->travlocks.hash, F_WRLCK) != 0)
-                               return tdb_null;
-                       tdb->travlocks.off = 0;
-               }
-
-               SAFE_FREE(k);
-       }
-
-       if (!tdb->travlocks.off) {
-               /* No previous element: do normal find, and lock record */
-               tdb->travlocks.off = tdb_find_lock_hash(tdb, oldkey, 
tdb->hash_fn(&oldkey), F_WRLCK, &rec);
-               if (!tdb->travlocks.off)
-                       return tdb_null;
-               tdb->travlocks.hash = BUCKET(rec.full_hash);
-               if (lock_record(tdb, tdb->travlocks.off) != 0) {
-                       TDB_LOG((tdb, 0, "tdb_nextkey: lock_record failed 
(%s)!\n", strerror(errno)));
-                       return tdb_null;
-               }
-       }
-       oldhash = tdb->travlocks.hash;
-
-       /* Grab next record: locks chain and returned record,
-          unlocks old record */
-       if (tdb_next_lock(tdb, &tdb->travlocks, &rec) > 0) {
-               key.dsize = rec.key_len;
-               key.dptr = tdb_alloc_read(tdb, tdb->travlocks.off+sizeof(rec),
-                                         key.dsize);
-               /* Unlock the chain of this new record */
-               if (tdb_unlock(tdb, tdb->travlocks.hash, F_WRLCK) != 0)
-                       TDB_LOG((tdb, 0, "tdb_nextkey: WARNING tdb_unlock 
failed!\n"));
-       }
-       /* Unlock the chain of old record */
-       if (tdb_unlock(tdb, BUCKET(oldhash), F_WRLCK) != 0)
-               TDB_LOG((tdb, 0, "tdb_nextkey: WARNING tdb_unlock failed!\n"));
-       return key;
-}
-
-/* delete an entry in the database given a key */
-static int tdb_delete_hash(TDB_CONTEXT *tdb, TDB_DATA key, uint32_t hash)
-{
-       tdb_off rec_ptr;
-       struct list_struct rec;
-       int ret;
-
-       if (!(rec_ptr = tdb_find_lock_hash(tdb, key, hash, F_WRLCK, &rec)))
-               return -1;
-       ret = do_delete(tdb, rec_ptr, &rec);
-       if (tdb_unlock(tdb, BUCKET(rec.full_hash), F_WRLCK) != 0)
-               TDB_LOG((tdb, 0, "tdb_delete: WARNING tdb_unlock failed!\n"));
-       return ret;
-}
-
-int tdb_delete(TDB_CONTEXT *tdb, TDB_DATA key)
-{
-       uint32_t hash = tdb->hash_fn(&key);
-       return tdb_delete_hash(tdb, key, hash);
-}
-
-/* store an element in the database, replacing any existing element
-   with the same key 
-
-   return 0 on success, -1 on failure
-*/
-int tdb_store(TDB_CONTEXT *tdb, TDB_DATA key, TDB_DATA dbuf, int flag)
-{
-       struct list_struct rec;
-       uint32_t hash;
-       tdb_off rec_ptr;
-       char *p = NULL;
-       int ret = 0;
-
-       /* find which hash bucket it is in */
-       hash = tdb->hash_fn(&key);
-       if (tdb_lock(tdb, BUCKET(hash), F_WRLCK) == -1)
-               return -1;
-
-       /* check for it existing, on insert. */
-       if (flag == TDB_INSERT) {
-               if (tdb_exists_hash(tdb, key, hash)) {
-                       tdb->ecode = TDB_ERR_EXISTS;
-                       goto fail;
-               }
-       } else {
-               /* first try in-place update, on modify or replace. */
-               if (tdb_update_hash(tdb, key, hash, dbuf) == 0)
-                       goto out;
-               if (tdb->ecode == TDB_ERR_NOEXIST &&
-                   flag == TDB_MODIFY) {
-                       /* if the record doesn't exist and we are in TDB_MODIFY 
mode then
-                        we should fail the store */
-                       goto fail;
-               }
-       }
-       /* reset the error code potentially set by the tdb_update() */
-       tdb->ecode = TDB_SUCCESS;
-
-       /* delete any existing record - if it doesn't exist we don't
-           care.  Doing this first reduces fragmentation, and avoids
-           coalescing with `allocated' block before it's updated. */
-       if (flag != TDB_INSERT)
-               tdb_delete_hash(tdb, key, hash);
-
-       /* Copy key+value *before* allocating free space in case malloc
-          fails and we are left with a dead spot in the tdb. */
-
-       if (!(p = (char *)talloc_size(tdb, key.dsize + dbuf.dsize))) {
-               tdb->ecode = TDB_ERR_OOM;
-               goto fail;
-       }
-
-       memcpy(p, key.dptr, key.dsize);
-       if (dbuf.dsize)
-               memcpy(p+key.dsize, dbuf.dptr, dbuf.dsize);
-
-       /* we have to allocate some space */
-       if (!(rec_ptr = tdb_allocate(tdb, key.dsize + dbuf.dsize, &rec)))
-               goto fail;
-
-       /* Read hash top into next ptr */
-       if (ofs_read(tdb, TDB_HASH_TOP(hash), &rec.next) == -1)
-               goto fail;
-
-       rec.key_len = key.dsize;
-       rec.data_len = dbuf.dsize;
-       rec.full_hash = hash;
-       rec.magic = TDB_MAGIC;
-
-       /* write out and point the top of the hash chain at it */
-       if (rec_write(tdb, rec_ptr, &rec) == -1
-           || tdb_write(tdb, rec_ptr+sizeof(rec), p, key.dsize+dbuf.dsize)==-1
-           || ofs_write(tdb, TDB_HASH_TOP(hash), &rec_ptr) == -1) {
-               /* Need to tdb_unallocate() here */
-               goto fail;
-       }
- out:
-       SAFE_FREE(p); 
-       tdb_unlock(tdb, BUCKET(hash), F_WRLCK);
-       return ret;
-fail:
-       ret = -1;
-       goto out;
-}
-
-static int tdb_already_open(dev_t device,
-                           ino_t ino)
-{
-       TDB_CONTEXT *i;
-       
-       for (i = tdbs; i; i = i->next) {
-               if (i->device == device && i->inode == ino) {
-                       return 1;
-               }
-       }
-
-       return 0;
-}
-
-/* a default logging function */
-static void null_log_fn(TDB_CONTEXT *tdb __attribute__((unused)),
-                       int level __attribute__((unused)),
-                       const char *fmt __attribute__((unused)), ...)
-{
-}
-
-
-TDB_CONTEXT *tdb_open_ex(const char *name, int hash_size, int tdb_flags,
-                        int open_flags, mode_t mode,
-                        tdb_log_func log_fn,
-                        tdb_hash_func hash_fn)
-{
-       TDB_CONTEXT *tdb;
-       struct stat st;
-       int rev = 0, locked = 0;
-       uint8_t *vp;
-       uint32_t vertest;
-
-       if (!(tdb = talloc_zero(name, TDB_CONTEXT))) {
-               /* Can't log this */
-               errno = ENOMEM;
-               goto fail;
-       }
-       tdb->fd = -1;
-       tdb->name = NULL;
-       tdb->map_ptr = NULL;
-       tdb->flags = tdb_flags;
-       tdb->open_flags = open_flags;
-       tdb->log_fn = log_fn?log_fn:null_log_fn;
-       tdb->hash_fn = hash_fn ? hash_fn : default_tdb_hash;
-
-       if ((open_flags & O_ACCMODE) == O_WRONLY) {
-               TDB_LOG((tdb, 0, "tdb_open_ex: can't open tdb %s write-only\n",
-                        name));
-               errno = EINVAL;
-               goto fail;
-       }
-       
-       if (hash_size == 0)
-               hash_size = DEFAULT_HASH_SIZE;
-       if ((open_flags & O_ACCMODE) == O_RDONLY) {
-               tdb->read_only = 1;
-               /* read only databases don't do locking or clear if first */
-               tdb->flags |= TDB_NOLOCK;
-               tdb->flags &= ~TDB_CLEAR_IF_FIRST;
-       }
-
-       /* internal databases don't mmap or lock, and start off cleared */
-       if (tdb->flags & TDB_INTERNAL) {
-               tdb->flags |= (TDB_NOLOCK | TDB_NOMMAP);
-               tdb->flags &= ~TDB_CLEAR_IF_FIRST;
-               if (tdb_new_database(tdb, hash_size) != 0) {
-                       TDB_LOG((tdb, 0, "tdb_open_ex: tdb_new_database 
failed!"));
-                       goto fail;
-               }
-               goto internal;
-       }
-
-       if ((tdb->fd = open(name, open_flags, mode)) == -1) {
-               TDB_LOG((tdb, 5, "tdb_open_ex: could not open file %s: %s\n",
-                        name, strerror(errno)));
-               goto fail;      /* errno set by open(2) */
-       }
-
-       /* ensure there is only one process initialising at once */
-       if (tdb_brlock(tdb, GLOBAL_LOCK, F_WRLCK, F_SETLKW, 0) == -1) {
-               TDB_LOG((tdb, 0, "tdb_open_ex: failed to get global lock on %s: 
%s\n",
-                        name, strerror(errno)));
-               goto fail;      /* errno set by tdb_brlock */
-       }
-
-       /* we need to zero database if we are the only one with it open */
-       if ((tdb_flags & TDB_CLEAR_IF_FIRST) &&
-               (locked = (tdb_brlock(tdb, ACTIVE_LOCK, F_WRLCK, F_SETLK, 0) == 
0))) {
-               open_flags |= O_CREAT;
-               if (ftruncate(tdb->fd, 0) == -1) {
-                       TDB_LOG((tdb, 0, "tdb_open_ex: "
-                                "failed to truncate %s: %s\n",
-                                name, strerror(errno)));
-                       goto fail; /* errno set by ftruncate */
-               }
-       }
-
-       if (read(tdb->fd, &tdb->header, sizeof(tdb->header)) != 
sizeof(tdb->header)
-           || strcmp(tdb->header.magic_food, TDB_MAGIC_FOOD) != 0
-           || (tdb->header.version != TDB_VERSION
-               && !(rev = (tdb->header.version==TDB_BYTEREV(TDB_VERSION))))) {
-               /* its not a valid database - possibly initialise it */
-               if (!(open_flags & O_CREAT) || tdb_new_database(tdb, hash_size) 
== -1) {
-                       errno = EIO; /* ie bad format or something */
-                       goto fail;
-               }
-               rev = (tdb->flags & TDB_CONVERT);
-       }
-       vp = (uint8_t *)&tdb->header.version;
-       vertest = (((uint32_t)vp[0]) << 24) | (((uint32_t)vp[1]) << 16) |
-                 (((uint32_t)vp[2]) << 8) | (uint32_t)vp[3];
-       tdb->flags |= (vertest==TDB_VERSION) ? TDB_BIGENDIAN : 0;
-       if (!rev)
-               tdb->flags &= ~TDB_CONVERT;
-       else {
-               tdb->flags |= TDB_CONVERT;
-               convert(&tdb->header, sizeof(tdb->header));
-       }
-       if (fstat(tdb->fd, &st) == -1)
-               goto fail;
-
-       /* Is it already in the open list?  If so, fail. */
-       if (tdb_already_open(st.st_dev, st.st_ino)) {
-               TDB_LOG((tdb, 2, "tdb_open_ex: "
-                        "%s (%d,%d) is already open in this process\n",
-                        name, (int)st.st_dev, (int)st.st_ino));
-               errno = EBUSY;
-               goto fail;
-       }
-
-       if (!(tdb->name = (char *)talloc_strdup(tdb, name))) {
-               errno = ENOMEM;
-               goto fail;
-       }
-
-       tdb->map_size = st.st_size;
-       tdb->device = st.st_dev;
-       tdb->inode = st.st_ino;
-       tdb->locked = talloc_zero_array(tdb, struct tdb_lock_type,
-                                       tdb->header.hash_size+1);
-       if (!tdb->locked) {
-               TDB_LOG((tdb, 2, "tdb_open_ex: "
-                        "failed to allocate lock structure for %s\n",
-                        name));
-               errno = ENOMEM;
-               goto fail;
-       }
-       tdb_mmap(tdb);
-       if (locked) {
-               if (tdb_brlock(tdb, ACTIVE_LOCK, F_UNLCK, F_SETLK, 0) == -1) {
-                       TDB_LOG((tdb, 0, "tdb_open_ex: "
-                                "failed to take ACTIVE_LOCK on %s: %s\n",
-                                name, strerror(errno)));
-                       goto fail;
-               }
-
-       }
-
-       /* We always need to do this if the CLEAR_IF_FIRST flag is set, even if
-          we didn't get the initial exclusive lock as we need to let all other
-          users know we're using it. */
-
-       if (tdb_flags & TDB_CLEAR_IF_FIRST) {
-       /* leave this lock in place to indicate it's in use */
-       if (tdb_brlock(tdb, ACTIVE_LOCK, F_RDLCK, F_SETLKW, 0) == -1)
-               goto fail;
-       }
-
-
- internal:
-       /* Internal (memory-only) databases skip all the code above to
-        * do with disk files, and resume here by releasing their
-        * global lock and hooking into the active list. */
-       if (tdb_brlock(tdb, GLOBAL_LOCK, F_UNLCK, F_SETLKW, 0) == -1)
-               goto fail;
-       tdb->next = tdbs;
-       tdbs = tdb;
-       return tdb;
-
- fail:
-       { int save_errno = errno;
-
-       if (!tdb)
-               return NULL;
-       
-       if (tdb->map_ptr) {
-               if (tdb->flags & TDB_INTERNAL)
-                       SAFE_FREE(tdb->map_ptr);
-               else
-                       tdb_munmap(tdb);
-       }
-       SAFE_FREE(tdb->name);
-       if (tdb->fd != -1)
-               if (close(tdb->fd) != 0)
-                       TDB_LOG((tdb, 5, "tdb_open_ex: failed to close tdb->fd 
on error!\n"));
-       SAFE_FREE(tdb->locked);
-       SAFE_FREE(tdb);
-       errno = save_errno;
-       return NULL;
-       }
-}
-
-/**
- * Close a database.
- *
- * @returns -1 for error; 0 for success.
- **/
-int tdb_close(TDB_CONTEXT *tdb)
-{
-       TDB_CONTEXT **i;
-       int ret = 0;
-
-       if (tdb->map_ptr) {
-               if (tdb->flags & TDB_INTERNAL)
-                       SAFE_FREE(tdb->map_ptr);
-               else
-                       tdb_munmap(tdb);
-       }
-       SAFE_FREE(tdb->name);
-       if (tdb->fd != -1)
-               ret = close(tdb->fd);
-       SAFE_FREE(tdb->locked);
-
-       /* Remove from contexts list */
-       for (i = &tdbs; *i; i = &(*i)->next) {
-               if (*i == tdb) {
-                       *i = tdb->next;
-                       break;
-               }
-       }
-
-       memset(tdb, 0, sizeof(*tdb));
-       SAFE_FREE(tdb);
-
-       return ret;
-}
diff --git a/tools/xenstore/tdb.h b/tools/xenstore/tdb.h
deleted file mode 100644
index ce3c7339f8..0000000000
--- a/tools/xenstore/tdb.h
+++ /dev/null
@@ -1,132 +0,0 @@
-#ifndef __TDB_H__
-#define __TDB_H__
-
-#include "utils.h"
-
-/* 
-   Unix SMB/CIFS implementation.
-
-   trivial database library
-
-   Copyright (C) Andrew Tridgell 1999-2004
-   
-     ** NOTE! The following LGPL license applies to the tdb
-     ** library. This does NOT imply that all of Samba is released
-     ** under the LGPL
-   
-   This library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2 of the License, or (at your option) any later version.
-
-   This library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with this library; If not, see <http://www.gnu.org/licenses/>.
-*/
-
-#ifdef  __cplusplus
-extern "C" {
-#endif
-
-
-/* flags to tdb_store() */
-#define TDB_REPLACE 1
-#define TDB_INSERT 2
-#define TDB_MODIFY 3
-
-/* flags for tdb_open() */
-#define TDB_DEFAULT 0 /* just a readability place holder */
-#define TDB_CLEAR_IF_FIRST 1
-#define TDB_INTERNAL 2 /* don't store on disk */
-#define TDB_NOLOCK   4 /* don't do any locking */
-#define TDB_NOMMAP   8 /* don't use mmap */
-#define TDB_CONVERT 16 /* convert endian (internal use) */
-#define TDB_BIGENDIAN 32 /* header is big-endian (internal use) */
-
-#define TDB_ERRCODE(code, ret) ((tdb->ecode = (code)), ret)
-
-/* error codes */
-enum TDB_ERROR {TDB_SUCCESS=0, TDB_ERR_CORRUPT, TDB_ERR_IO, TDB_ERR_LOCK, 
-               TDB_ERR_OOM, TDB_ERR_EXISTS, TDB_ERR_NOLOCK, 
TDB_ERR_LOCK_TIMEOUT,
-               TDB_ERR_NOEXIST};
-
-#ifndef uint32_t
-#define uint32_t unsigned
-#endif
-
-typedef struct TDB_DATA {
-       char *dptr;
-       size_t dsize;
-} TDB_DATA;
-
-typedef uint32_t tdb_len;
-typedef uint32_t tdb_off;
-
-/* this is stored at the front of every database */
-struct tdb_header {
-       char magic_food[32]; /* for /etc/magic */
-       uint32_t version; /* version of the code */
-       uint32_t hash_size; /* number of hash entries */
-       tdb_off rwlocks;
-       tdb_off reserved[31];
-};
-
-struct tdb_lock_type {
-       uint32_t count;
-       uint32_t ltype;
-};
-
-struct tdb_traverse_lock {
-       struct tdb_traverse_lock *next;
-       uint32_t off;
-       uint32_t hash;
-};
-
-/* this is the context structure that is returned from a db open */
-typedef struct tdb_context {
-       char *name; /* the name of the database */
-       void *map_ptr; /* where it is currently mapped */
-       int fd; /* open file descriptor for the database */
-       tdb_len map_size; /* how much space has been mapped */
-       int read_only; /* opened read-only */
-       struct tdb_lock_type *locked; /* array of chain locks */
-       enum TDB_ERROR ecode; /* error code for last tdb error */
-       struct tdb_header header; /* a cached copy of the header */
-       uint32_t flags; /* the flags passed to tdb_open */
-       struct tdb_traverse_lock travlocks; /* current traversal locks */
-       struct tdb_context *next; /* all tdbs to avoid multiple opens */
-       dev_t device;   /* uniquely identifies this tdb */
-       ino_t inode;    /* uniquely identifies this tdb */
-       void (*log_fn)(struct tdb_context *tdb, int level, const char *, ...) 
PRINTF_ATTRIBUTE(3,4); /* logging function */
-       uint32_t (*hash_fn)(TDB_DATA *key);
-       int open_flags; /* flags used in the open - needed by reopen */
-} TDB_CONTEXT;
-
-typedef int (*tdb_traverse_func)(TDB_CONTEXT *, TDB_DATA, TDB_DATA, void *);
-typedef void (*tdb_log_func)(TDB_CONTEXT *, int , const char *, ...);
-typedef uint32_t (*tdb_hash_func)(TDB_DATA *key);
-
-TDB_CONTEXT *tdb_open_ex(const char *name, int hash_size, int tdb_flags,
-                        int open_flags, mode_t mode,
-                        tdb_log_func log_fn,
-                        tdb_hash_func hash_fn);
-
-enum TDB_ERROR tdb_error(TDB_CONTEXT *tdb);
-const char *tdb_errorstr(TDB_CONTEXT *tdb);
-TDB_DATA tdb_fetch(TDB_CONTEXT *tdb, TDB_DATA key);
-int tdb_delete(TDB_CONTEXT *tdb, TDB_DATA key);
-int tdb_store(TDB_CONTEXT *tdb, TDB_DATA key, TDB_DATA dbuf, int flag);
-int tdb_close(TDB_CONTEXT *tdb);
-TDB_DATA tdb_firstkey(TDB_CONTEXT *tdb);
-TDB_DATA tdb_nextkey(TDB_CONTEXT *tdb, TDB_DATA key);
-int tdb_traverse(TDB_CONTEXT *tdb, tdb_traverse_func fn, void *);
-
-#ifdef  __cplusplus
-}
-#endif
-
-#endif /* tdb.h */
-- 
2.35.3




 


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