Update. cvs/libc-ud-970827

1997-08-10 19:17  Philip Blundell  <Philip.Blundell@pobox.com>

	* nss/nss_db/db-XXX.c: Include <db_185.h> not <db.h>.  Somebody
	should update this to use the new db API.
	* nss/nss_db/db-netgrp.c: Likewise.
	* nss/nss_db/db-alias.c: Likewise.
	* db2/Makefile: Makefile for db-2.x in glibc.

1997-08-27 21:20  Ulrich Drepper  <drepper@cygnus.com>

	* csu/Makefile (before-compile): New goal.  Make sure abi-tag.h
	is generated.
	[$(elf)=yes] (asm-CPPFLAGS): Make sure abi-tag.h file can be found.

	* Makeconfig [$(build-omitfp)=yes] (CFLAGS-.o): Add
	-D__USE_STRING_INLINES.
	* string/string.f: Move strnlen optimization after inclusion of
	<bits/string.h>.  Include <bits/string.h> only if __USE_STRING_INLINES
	is defined.
	* sysdeps/generic/memcpy.c: Undef memcpy to allow macro of this name
	in <bits/string.h>.
	* sysdeps/generic/memset.c: Likewise.
	* sysdeps/i386/string.h: i386 optimized string functions.
	* sysdeps/i386/i486string.h: i486+ optimized string functions.

	* Makefile (subdirs): Change db to db2.
	* shlib-versions: Bump libdb verion number to 3.
	* include/db.h: Include from db2 directory.
	* include/db_185.h: New file.
	* sysdeps/i386/Makefile [$(subdirs)=db2] (CPPFLAGS): Add macros
	to provide spinlock information for db2.
	* sysdeps/m68k/m68020/Makefile: New file.  Likewise.
	* sysdeps/sparc/Makefile: New file.  Likewise.
	* sysdeps/unix/sysv/linux/Makefile [$(subdirs)=db2] (CPPFLAGS):
	Add -DHAVE_LLSEEK.
	* db2/config.h: Hand-edited config file for db2 in glibc.
	* db2/compat.h: New file from db-2.3.4.
	* db2/db.h: Likewise.
	* db2/db_185.h: Likewise.
	* db2/db_int.h: Likewise.
	* db2/makedb.c: Likewise.
	* db2/btree/bt_close.c: Likewise.
	* db2/btree/bt_compare.c: Likewise.
	* db2/btree/bt_conv.c: Likewise.
	* db2/btree/bt_cursor.c: Likewise.
	* db2/btree/bt_delete.c: Likewise.
	* db2/btree/bt_open.c: Likewise.
	* db2/btree/bt_page.c: Likewise.
	* db2/btree/bt_put.c: Likewise.
	* db2/btree/bt_rec.c: Likewise.
	* db2/btree/bt_recno.c: Likewise.
	* db2/btree/btree_auto.c: Likewise.
	* db2/btree/bt_rsearch.c: Likewise.
	* db2/btree/bt_search.c: Likewise.
	* db2/btree/bt_split.c: Likewise.
	* db2/btree/bt_stat.c: Likewise.
	* db2/btree/btree.src: Likewise.
	* db2/common/db_appinit.c: Likewise.
	* db2/common/db_err.c: Likewise.
	* db2/common/db_byteorder.c: Likewise.
	* db2/common/db_apprec.c: Likewise.
	* db2/common/db_salloc.c: Likewise.
	* db2/common/db_log2.c: Likewise.
	* db2/common/db_region.c: Likewise.
	* db2/common/db_shash.c: Likewise.
	* db2/db/db.c: Likewise.
	* db2/db/db.src: Likewise.
	* db2/db/db_conv.c: Likewise.
	* db2/db/db_dispatch.c: Likewise.
	* db2/db/db_dup.c: Likewise.
	* db2/db/db_overflow.c: Likewise.
	* db2/db/db_pr.c: Likewise.
	* db2/db/db_rec.c: Likewise.
	* db2/db/db_ret.c: Likewise.
	* db2/db/db_thread.c: Likewise.
	* db2/db/db_auto.c: Likewise.
	* db2/db185/db185.c: Likewise.
	* db2/db185/db185_int.h: Likewise.
	* db2/dbm/dbm.c: Likewise.
	* db2/hash/hash.c: Likewise.
	* db2/hash/hash.src: Likewise.
	* db2/hash/hash_page.c: Likewise.
	* db2/hash/hash_conv.c: Likewise.
	* db2/hash/hash_debug.c: Likewise.
	* db2/hash/hash_stat.c: Likewise.
	* db2/hash/hash_rec.c: Likewise.
	* db2/hash/hash_dup.c: Likewise.
	* db2/hash/hash_func.c: Likewise.
	* db2/hash/hash_auto.c: Likewise.
	* db2/include/mp.h: Likewise.
	* db2/include/btree.h: Likewise.
	* db2/include/db.h.src: Likewise.
	* db2/include/db_int.h.src: Likewise.
	* db2/include/db_shash.h: Likewise.
	* db2/include/db_swap.h: Likewise.
	* db2/include/db_185.h.src: Likewise.
	* db2/include/txn.h: Likewise.
	* db2/include/db_am.h: Likewise.
	* db2/include/shqueue.h: Likewise.
	* db2/include/hash.h: Likewise.
	* db2/include/db_dispatch.h: Likewise.
	* db2/include/lock.h: Likewise.
	* db2/include/db_page.h: Likewise.
	* db2/include/log.h: Likewise.
	* db2/include/db_auto.h: Likewise.
	* db2/include/btree_auto.h: Likewise.
	* db2/include/hash_auto.h: Likewise.
	* db2/include/log_auto.h: Likewise.
	* db2/include/txn_auto.h: Likewise.
	* db2/include/db_ext.h: Likewise.
	* db2/include/btree_ext.h: Likewise.
	* db2/include/clib_ext.h: Likewise.
	* db2/include/common_ext.h: Likewise.
	* db2/include/hash_ext.h: Likewise.
	* db2/include/lock_ext.h: Likewise.
	* db2/include/log_ext.h: Likewise.
	* db2/include/mp_ext.h: Likewise.
	* db2/include/mutex_ext.h: Likewise.
	* db2/include/os_ext.h: Likewise.
	* db2/include/txn_ext.h: Likewise.
	* db2/include/cxx_int.h: Likewise.
	* db2/include/db_cxx.h: Likewise.
	* db2/include/queue.h: Likewise.
	* db2/lock/lock.c: Likewise.
	* db2/lock/lock_conflict.c: Likewise.
	* db2/lock/lock_util.c: Likewise.
	* db2/lock/lock_deadlock.c: Likewise.
	* db2/log/log.c: Likewise.
	* db2/log/log_get.c: Likewise.
	* db2/log/log.src: Likewise.
	* db2/log/log_compare.c: Likewise.
	* db2/log/log_put.c: Likewise.
	* db2/log/log_rec.c: Likewise.
	* db2/log/log_archive.c: Likewise.
	* db2/log/log_register.c: Likewise.
	* db2/log/log_auto.c: Likewise.
	* db2/log/log_findckp.c: Likewise.
	* db2/mp/mp_bh.c: Likewise.
	* db2/mp/mp_fget.c: Likewise.
	* db2/mp/mp_fopen.c: Likewise.
	* db2/mp/mp_fput.c: Likewise.
	* db2/mp/mp_fset.c: Likewise.
	* db2/mp/mp_open.c: Likewise.
	* db2/mp/mp_region.c: Likewise.
	* db2/mp/mp_pr.c: Likewise.
	* db2/mp/mp_sync.c: Likewise.
	* db2/mutex/68020.gcc: Likewise.
	* db2/mutex/mutex.c: Likewise.
	* db2/mutex/README: Likewise.
	* db2/mutex/x86.gcc: Likewise.
	* db2/mutex/sparc.gcc: Likewise.
	* db2/mutex/uts4.cc.s: Likewise.
	* db2/mutex/alpha.dec: Likewise.
	* db2/mutex/alpha.gcc: Likewise.
	* db2/mutex/parisc.gcc: Likewise.
	* db2/mutex/parisc.hp: Likewise.
	* db2/os/db_os_abs.c: Likewise.
	* db2/os/db_os_dir.c: Likewise.
	* db2/os/db_os_fid.c: Likewise.
	* db2/os/db_os_lseek.c: Likewise.
	* db2/os/db_os_mmap.c: Likewise.
	* db2/os/db_os_open.c: Likewise.
	* db2/os/db_os_rw.c: Likewise.
	* db2/os/db_os_sleep.c: Likewise.
	* db2/os/db_os_stat.c: Likewise.
	* db2/os/db_os_unlink.c: Likewise.
	* db2/txn/txn.c: Likewise.
	* db2/txn/txn.src: Likewise.
	* db2/txn/txn_rec.c: Likewise.
	* db2/txn/txn_auto.c: Likewise.
	* db2/clib/getlong.c: Likewise.
	* db2/progs/db_archive/db_archive.c: Likewise.
	* db2/progs/db_checkpoint/db_checkpoint.c: Likewise.
	* db2/progs/db_deadlock/db_deadlock.c: Likewise.
	* db2/progs/db_dump/db_dump.c: Likewise.
	* db2/progs/db_dump185/db_dump185.c: Likewise.
	* db2/progs/db_load/db_load.c: Likewise.
	* db2/progs/db_printlog/db_printlog.c: Likewise.
	* db2/progs/db_recover/db_recover.c: Likewise.
	* db2/progs/db_stat/db_stat.c: Likewise.

	* libio/stdio.h [__cplusplus] (__STDIO_INLINE): Define as inline.

	* po/de.po, po/sv.po: Update from 2.0.5 translations.

	* sysdeps/unix/sysv/linux/netinet/tcp.h: Pretty print.

	* sunrpc/rpc/xdr.h (XDR): Don't define argument of x_destroy callback
	as const.
	* sunrpc/xdr_mem.c (xdrmem_destroy): Don't define argument as const.
	* sunrpx/xdr_rec.c (xdrrec_destroy): Likewise.
	* sunrpx/xdr_stdio.c (xdrstdio_destroy): Likewise.

1997-08-27 18:47  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/unix/sysv/linux/if_index.c: Include <errno.h>.
	Reported by Benjamin Kosnik <bkoz@cygnus.com>.

1997-08-27 02:27  Roland McGrath  <roland@baalperazim.frob.com>

	* abi-tags: New file.
	* csu/Makefile (distribute): Remove abi-tag.h.
	($(objpfx)abi-tag.h): New target.
	* Makefile (distribute): Add abi-tags.
	* sysdeps/unix/sysv/linux/abi-tag.h: File removed.
	* sysdeps/mach/hurd/abi-tag.h: File removed.
	* sysdeps/stub/abi-tag.h: File removed.

1997-08-25  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/unix/make-syscalls.sh: Change output so that it
	generates compilation rules only for the currently selected object
	suffixes.

1997-08-25  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/m68k/dl-machine.h (RTLD_START): Switch back to previous
	section to avoid confusing the compiler.
	* sysdeps/alpha/dl-machine.h (RTLD_START): Likewise.
	* sysdeps/i386/dl-machine.h (RTLD_START): Likewise.
	* sysdeps/mips/dl-machine.h (RTLD_START): Likewise.
	* sysdeps/mips/mips64/dl-machine.h (RTLD_START): Likewise.
	* sysdeps/sparc/sparc32/dl-machine.h (RTLD_START): Likewise.

	* sysdeps/m68k/dl-machine.h (elf_machine_load_address): Use a GOT
	relocation instead of a constant to avoid text relocation.
	(ELF_MACHINE_BEFORE_RTLD_RELOC): Removed.
	(RTLD_START): Declare global labels as functions and add size
	directive.

1997-08-25 17:01  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/i386/bits/select.h: Correct assembler versions to work even
	for descriptors >= 32.

	* stdlib/alloca.h: Don't define alloca to __alloca since if gcc
	is used __alloca is not defined to __builtin_alloca and so might
	not be available.
	Reported by Uwe Ohse <uwe@ohse.de>.

	* sysdeps/unix/sysv/linux/sys/sysmacros.h: Define macros in a special
	way if gcc is not used and so dev_t is an array.
	Reported by Uwe Ohse <uwe@ohse.de>.

1997-08-23  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* manual/libc.texinfo: Reorder chapters to match logical order.

1997-08-25 12:22  Ulrich Drepper  <drepper@cygnus.com>

	* sunrpc/rpc/xdr.h: Change name of parameters in prototypes of
	xdr_reference, xdrmem_create, and xdrstdio_create because of clash
	with g++ internal symbols.
	Patch by Sudish Joseph <sj@eng.mindspring.net>.

	* elf/dl-deps.c: Implement handling of DT_FILTER.

1 files changed, 332 insertions, 0 deletions

diff --git a/db2/include/db_int.h.src b/db2/include/db_int.h.src
new file mode 100644
index 0000000000..b60e5002e5
--- /dev/null
+++ b/db2/include/db_int.h.src
@@ -0,0 +1,332 @@
+/*-
+ * See the file LICENSE for redistribution information.
+ *
+ * Copyright (c) 1996, 1997
+ *	Sleepycat Software.  All rights reserved.
+ *
+ *	@(#)db_int.h.src	10.28 (Sleepycat) 8/20/97
+ */
+
+#ifndef _DB_INTERNAL_H_
+#define	_DB_INTERNAL_H_
+
+#include "db.h"				/* Standard DB include file. */
+#include "queue.h"
+#include "os_ext.h"
+
+/*******************************************************
+ * General purpose constants and macros.
+ *******************************************************/
+#define	UINT32_T_MAX	0xffffffff	/* Maximum 32 bit unsigned. */
+#define	UINT16_T_MAX	    0xffff	/* Maximum 16 bit unsigned. */
+
+#define	DB_MIN_PGSIZE	0x000200	/* Minimum page size. */
+#define	DB_MAX_PGSIZE	0x010000	/* Maximum page size. */
+
+#define	DB_MINCACHE	10		/* Minimum cached pages */
+
+/*
+ * Aligning items to particular sizes or in pages or memory.  ALIGNP is a
+ * separate macro, as we've had to cast the pointer to different integral
+ * types on different architectures.
+ *
+ * We cast pointers into unsigned longs when manipulating them because C89
+ * guarantees that u_long is the largest available integral type and further,
+ * to never generate overflows.  However, neither C89 or C9X  requires that
+ * any integer type be large enough to hold a pointer, although C9X created
+ * the intptr_t type, which is guaranteed to hold a pointer but may or may
+ * not exist.  At some point in the future, we should test for intptr_t and
+ * use it where available.
+ */
+#undef	ALIGNTYPE
+#define	ALIGNTYPE		u_long
+#undef	ALIGNP
+#define	ALIGNP(value, bound)	ALIGN((ALIGNTYPE)value, bound)
+#undef	ALIGN
+#define	ALIGN(value, bound)	(((value) + (bound) - 1) & ~((bound) - 1))
+
+/*
+ * There are several on-page structures that are declared to have a number of
+ * fields followed by a variable length array of items.  The structure size
+ * without including the variable length array or the address of the first of
+ * those elements can be found using SSZ.
+ *
+ * This macro can also be used to find the offset of a structure element in a
+ * structure.  This is used in various places to copy structure elements from
+ * unaligned memory references, e.g., pointers into a packed page.
+ *
+ * There are two versions because compilers object if you take the address of
+ * an array.
+ */
+#undef	SSZ
+#define SSZ(name, field)	((int)&(((name *)0)->field))
+
+#undef	SSZA
+#define SSZA(name, field)	((int)&(((name *)0)->field[0]))
+
+/* Free and free-string macros that overwrite memory during debugging. */
+#ifdef DEBUG
+#undef	FREE
+#define	FREE(p, len) {							\
+	memset(p, 0xff, len);						\
+	free(p);							\
+}
+#undef	FREES
+#define	FREES(p) {							\
+	FREE(p, strlen(p));						\
+}
+#else
+#undef	FREE
+#define	FREE(p, len) {							\
+	free(p);							\
+}
+#undef	FREES
+#define	FREES(p) {							\
+	free(p);							\
+}
+#endif
+
+/* Structure used to print flag values. */
+typedef struct __fn {
+	u_int32_t mask;			/* Flag value. */
+	char	 *name;			/* Flag name. */
+} FN;
+
+/* Set, clear and test flags. */
+#define	F_SET(p, f)	(p)->flags |= (f)
+#define	F_CLR(p, f)	(p)->flags &= ~(f)
+#define	F_ISSET(p, f)	((p)->flags & (f))
+#define	LF_SET(f)	(flags |= (f))
+#define	LF_CLR(f)	(flags &= ~(f))
+#define	LF_ISSET(f)	(flags & (f))
+
+/* Display separator string. */
+#undef	DB_LINE
+#define	DB_LINE "=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-="
+
+/*******************************************************
+ * Files.
+ *******************************************************/
+#ifndef MAXPATHLEN		/* Maximum path length. */
+#ifdef PATH_MAX
+#define	MAXPATHLEN	PATH_MAX
+#else
+#define	MAXPATHLEN	1024
+#endif
+#endif
+
+#define	PATH_DOT	"."	/* Current working directory. */
+#define	PATH_SEPARATOR	"/"	/* Path separator character. */
+
+#ifndef S_IRUSR			/* UNIX specific file permissions. */
+#define	S_IRUSR	0000400		/* R for owner */
+#define	S_IWUSR	0000200		/* W for owner */
+#define	S_IRGRP	0000040		/* R for group */
+#define	S_IWGRP	0000020		/* W for group */
+#define	S_IROTH	0000004		/* R for other */
+#define	S_IWOTH	0000002		/* W for other */
+#endif
+
+#ifndef S_ISDIR			/* UNIX specific: directory test. */
+#define	S_ISDIR(m)	((m & 0170000) == 0040000)
+#endif
+
+/*******************************************************
+ * Mutex support.
+ *******************************************************/
+@spin_line1@
+@spin_line2@
+@spin_line3@
+
+/*
+ * !!!
+ * Various systems require different alignments for mutexes (the worst we've
+ * seen so far is 16-bytes on some HP architectures).  The mutex (tsl_t) must
+ * be first in the db_mutex_t structure, which must itself be first in the
+ * region.  This ensures the alignment is as returned by mmap(2), which should
+ * be sufficient.  All other mutex users must ensure proper alignment locally.
+ */
+#define	MUTEX_ALIGNMENT	@mutex_align@
+
+/*
+ * The offset of a mutex in memory.
+ */
+#define	MUTEX_LOCK_OFFSET(a, b)	((off_t)((u_int8_t *)b - (u_int8_t *)a))
+
+typedef struct _db_mutex_t {
+#ifdef HAVE_SPINLOCKS
+	tsl_t	tsl_resource;		/* Resource test and set. */
+#ifdef DEBUG
+	u_long	pid;			/* Lock holder: 0 or process pid. */
+#endif
+#else
+	off_t	off;			/* Backing file offset. */
+	u_long	pid;			/* Lock holder: 0 or process pid. */
+#endif
+#ifdef MUTEX_STATISTICS
+	u_long	mutex_set_wait;		/* Blocking mutex: required waiting. */
+	u_long	mutex_set_nowait;	/* Blocking mutex: without waiting. */
+#endif
+} db_mutex_t;
+
+#include "mutex_ext.h"
+
+/*******************************************************
+ * Access methods.
+ *******************************************************/
+/* Lock/unlock a DB thread. */
+#define	DB_THREAD_LOCK(dbp)						\
+	(F_ISSET(dbp, DB_AM_THREAD) ?					\
+	    __db_mutex_lock((db_mutex_t *)(dbp)->mutex,  -1,		\
+	        (dbp)->dbenv == NULL ? NULL : (dbp)->dbenv->db_yield) : 0)
+#define	DB_THREAD_UNLOCK(dbp)						\
+	(F_ISSET(dbp, DB_AM_THREAD) ?					\
+	    __db_mutex_unlock((db_mutex_t *)(dbp)->mutex,  -1) : 0)
+
+/* Btree/recno local statistics structure. */
+struct __db_bt_lstat;	typedef struct __db_bt_lstat DB_BTREE_LSTAT;
+struct __db_bt_lstat {
+	u_int32_t bt_freed;		/* Pages freed for reuse. */
+	u_int32_t bt_pfxsaved;		/* Bytes saved by prefix compression. */
+	u_int32_t bt_split;		/* Total number of splits. */
+	u_int32_t bt_rootsplit;		/* Root page splits. */
+	u_int32_t bt_fastsplit;		/* Fast splits. */
+	u_int32_t bt_added;		/* Items added. */
+	u_int32_t bt_deleted;		/* Items deleted. */
+	u_int32_t bt_get;		/* Items retrieved. */
+	u_int32_t bt_cache_hit;		/* Hits in fast-insert code. */
+	u_int32_t bt_cache_miss;	/* Misses in fast-insert code. */
+};
+
+/*******************************************************
+ * Environment.
+ *******************************************************/
+/* Type passed to __db_appname(). */
+typedef enum {
+	DB_APP_NONE=0,			/* No type (region). */
+	DB_APP_DATA,			/* Data file. */
+	DB_APP_LOG,			/* Log file. */
+	DB_APP_TMP			/* Temporary file. */
+} APPNAME;
+
+/*******************************************************
+ * Regions.
+ *******************************************************/
+/*
+ * The shared memory regions share an initial structure so that the general
+ * region code can handle races between the region being deleted and other
+ * processes waiting on the region mutex.
+ *
+ * !!!
+ * Note, the mutex must be the first entry in the region; see comment above.
+ */
+typedef struct _rlayout {
+	db_mutex_t lock;		/* Region mutex. */
+	u_int32_t  refcnt;		/* Region reference count. */
+	size_t	   size;		/* Region length. */
+	int	   majver;		/* Major version number. */
+	int	   minver;		/* Minor version number. */
+	int	   patch;		/* Patch version number. */
+
+#define	DB_R_DELETED	0x01		/* Region was deleted. */
+	u_int32_t  flags;
+} RLAYOUT;
+
+/*******************************************************
+ * Mpool.
+ *******************************************************/
+/*
+ * File types for DB access methods.  Negative numbers are reserved to DB.
+ */
+#define	DB_FTYPE_BTREE		-1	/* Btree. */
+#define	DB_FTYPE_HASH		-2	/* Hash. */
+
+/* Structure used as the DB pgin/pgout pgcookie. */
+typedef struct __dbpginfo {
+	size_t	db_pagesize;		/* Underlying page size. */
+	int	needswap;		/* If swapping required. */
+} DB_PGINFO;
+
+/*******************************************************
+ * Log.
+ *******************************************************/
+/* Initialize an LSN to 'zero'. */
+#define	ZERO_LSN(LSN) {							\
+	(LSN).file = 0;							\
+	(LSN).offset = 0;						\
+}
+
+/* Return 1 if LSN is a 'zero' lsn, otherwise return 0. */
+#define	IS_ZERO_LSN(LSN)	((LSN).file == 0)
+
+/* Test if we need to log a change. */
+#define	DB_LOGGING(dbp) \
+	(F_ISSET(dbp, DB_AM_LOGGING) && !F_ISSET(dbp, DB_AM_RECOVER))
+
+#ifdef DEBUG
+/*
+ * Debugging macro to log operations.
+ *	If DEBUG_WOP is defined, log operations that modify the database.
+ *	If DEBUG_ROP is defined, log operations that read the database.
+ *
+ * D dbp
+ * T txn
+ * O operation (string)
+ * K key
+ * A data
+ * F flags
+ */
+#define	LOG_OP(D, T, O, K, A, F) {					\
+	DB_LSN _lsn;							\
+	DBT _op;							\
+	if (DB_LOGGING((D))) {						\
+		memset(&_op, 0, sizeof(_op));				\
+		_op.data = O;						\
+		_op.size = strlen(O) + 1;				\
+		(void)__db_debug_log((D)->dbenv->lg_info,		\
+		    T, &_lsn, 0, &_op, (D)->log_fileid, K, A, F);	\
+	}								\
+}
+#ifdef DEBUG_ROP
+#define	DEBUG_LREAD(D, T, O, K, A, F)	LOG_OP(D, T, O, K, A, F)
+#else
+#define	DEBUG_LREAD(D, T, O, K, A, F)
+#endif
+#ifdef DEBUG_WOP
+#define	DEBUG_LWRITE(D, T, O, K, A, F)	LOG_OP(D, T, O, K, A, F)
+#else
+#define	DEBUG_LWRITE(D, T, O, K, A, F)
+#endif
+#else
+#define	DEBUG_LREAD(D, T, O, K, A, F)
+#define	DEBUG_LWRITE(D, T, O, K, A, F)
+#endif /* DEBUG */
+
+/*******************************************************
+ * Transactions and recovery.
+ *******************************************************/
+/*
+ * The locker id space is divided between the transaction manager and the lock
+ * manager.  Lockid's start at 0 and go to MAX_LOCKER_ID.  Txn Id's start at
+ * MAX_LOCKER_ID + 1 and go up to MAX_TXNID.
+ */
+#define	MAX_LOCKER_ID	0x0fffffff
+#define	MAX_TXNID	0xffffffff
+
+/*
+ * Out of band value for a lock.  The locks are returned to callers as offsets
+ * into the lock regions.  Since the RLAYOUT structure begins all regions, an
+ * offset of 0 is guaranteed not to be a valid lock.
+ */
+#define	LOCK_INVALID	0
+
+/* The structure allocated for every transaction. */
+struct __db_txn {
+	DB_TXNMGR	*mgrp;		/* Pointer to transaction manager. */
+	DB_TXN		*parent;	/* Pointer to transaction's parent. */
+	DB_LSN		last_lsn;	/* Lsn of last log write. */
+	u_int32_t	txnid;		/* Unique transaction id. */
+	size_t		off;		/* Detail structure within region. */
+	TAILQ_ENTRY(__db_txn) links;
+};
+#endif /* !_DB_INTERNAL_H_ */