Update.cvs/libc-ud-971111

1997-11-11 21:30  Ulrich Drepper  <drepper@cygnus.com>

	* include/sys/stat.h: Define stat, fstat, lstat and *64 variants
	as macros so the the library compiles correctly even without
	optimization.
	* io/fstat.c: Undef fstat.
	* io/fstat64.c: Undef fstat64
	* io/lstat.c: Undef lstat.
	* io/lstat64.c: Undef lstat64
	* io/stat.c: Undef stat.
	* io/stat64.c: Undef stat64
	* io/fts.c: Include <include/sys/stat.h> to get macro definitions.
	* io/ftw.c: Likewise.
	* io/getdirname.c: Likewise.

	* Makefile (install): Run test-installation.pl if possible.

	* db2/Makefile: Update from db-2.3.12.
	* db2/db.h: Likewise.
	* db2/db_int.h: Likewise.
	* db2/btree/bt_cursor.c: Likewise.
	* db2/btree/bt_delete.c: Likewise.
	* db2/btree/bt_open.c: Likewise.
	* db2/btree/bt_put.c: Likewise.
	* db2/btree/bt_rec.c: Likewise.
	* db2/btree/bt_recno.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/btree/btree_auto.c: Likewise.
	* db2/btree/bt_cursor.c: Likewise.
	* db2/btree/bt_delete.c: Likewise.
	* db2/btree/bt_open.c: Likewise.
	* db2/btree/bt_put.c: Likewise.
	* db2/btree/bt_rec.c: Likewise.
	* db2/btree/bt_recno.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/btree/btree_auto.c: Likewise.
	* db2/common/db_appinit.c: Likewise.
	* db2/common/db_apprec.c: Likewise.
	* db2/common/db_byteorder.c: Likewise.
	* db2/common/db_region.c: Likewise.
	* db2/db/db.c: Likewise
	* db2/db/db.src: Likewise
	* db2/db/db_auto.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/db185/db185.c: Likewise.
	* db2/hash/hash.c: Likewise.
	* db2/hash/hash.src: Likewise.
	* db2/hash/hash_auto.c: Likewise.
	* db2/hash/hash_dup.c: Likewise.
	* db2/hash/hash_page.c: Likewise.
	* db2/hash/hash_rec.c: Likewise.
	* db2/include/btree_auto.h: Likewise.
	* db2/include/btree_ext.h: Likewise.
	* db2/include/clib_ext.h: Likewise.
	* db2/include/common_ext.h: Likewise.
	* db2/include/db.h.src: Likewise.
	* db2/include/db_am.h: Likewise.
	* db2/include/db_auto.h: Likewise.
	* db2/include/db_cxx.h: Likewise.
	* db2/include/db_ext.h: Likewise.
	* db2/include/db_int.h.src: Likewise.
	* db2/include/hash.h: Likewise.
	* db2/include/hash_auto.h: Likewise.
	* db2/include/hash_ext.h: Likewise.
	* db2/include/lock.h: Likewise.
	* db2/include/lock_ext.h: Likewise.
	* db2/include/log.h: Likewise.
	* db2/include/log_ext.h: Likewise.
	* db2/include/mp.h: Likewise.
	* db2/include/mp_ext.h: Likewise.
	* db2/include/mutex_ext.h: Likewise.
	* db2/include/os_ext.h: Likewise.
	* db2/include/os_func.h: Likewise.
	* db2/include/txn.h: Likewise.
	* db2/include/txn_ext.h: Likewise.
	* db2/lock/lock.c: Likewise.
	* db2/lock/lock_deadlock.c: Likewise.
	* db2/log/log.c: Likewise.
	* db2/log/log_archive.c: Likewise.
	* db2/log/log_auto.c: Likewise.
	* db2/log/log_findckp.c: Likewise.
	* db2/log/log_get.c: Likewise.
	* db2/log/log_put.c: Likewise.
	* db2/log/log_rec.c: Likewise.
	* db2/log/log_register.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_pr.c: Likewise.
	* db2/mp/mp_region.c: Likewise.
	* db2/mp/mp_sync.c: Likewise.
	* db2/mutex/mutex.c: Likewise.
	* db2/os/os_abs.c: Likewise.
	* db2/os/os_dir.c: Likewise.
	* db2/os/os_fid.c: Likewise.
	* db2/os/os_fsync.c: Likewise.
	* db2/os/os_func.c: Likewise.
	* db2/os/os_map.c: Likewise.
	* db2/os/os_oflags.c: Likewise.
	* db2/os/os_open.c: Likewise.
	* db2/os/os_rpath.c: Likewise.
	* db2/os/os_rw.c: Likewise.
	* db2/os/os_seek.c: Likewise.
	* db2/os/os_sleep.c: Likewise.
	* db2/os/os_stat.c: Likewise.
	* db2/os/os_unlink.c: Likewise.
	* db2/progs/db_deadlock/db_deadlock.c: Likewise.
	* db2/progs/db_dump/db_dump.c: Likewise.
	* db2/progs/db_load/db_load.c: Likewise.
	* db2/progs/db_recover/db_recover.c: Likewise.
	* db2/progs/db_stat/db_stat.c: Likewise.
	* db2/txn/txn.c: Likewise.
	* db2/txn/txn_auto.c: Likewise.
	* db2/txn/txn_rec.c: Likewise.
	* db2/os/db_os_abs.c: Removed.
	* db2/os/db_os_dir.c: Removed.
	* db2/os/db_os_fid.c: Removed.
	* db2/os/db_os_lseek.c: Removed.
	* db2/os/db_os_mmap.c: Removed.
	* db2/os/db_os_open.c: Removed.
	* db2/os/db_os_rw.c: Removed.
	* db2/os/db_os_sleep.c: Removed.
	* db2/os/db_os_stat.c: Removed.
	* db2/os/db_os_unlink.c: Removed.

	* libio/stdio.h (fopen): Add __restrict to parameters.

	* manual/process.texi (system): Describe behaviour for NULL argument.

	* stdio-common/printf-parse.h: Parse hh modifier.
	* stdio-common/vfprintf.c: Handle hh modifier.
	* stdio-common/vfscanf.c: Likewise.
	* manual/stdio.texi: Describe hh modifier for scanf/printf.

	* math/complex.h: Don't define _Imaginary_I, but instead _Complex_I.
	gcc does no yet know the `imaginary' keyword.

	* math/test-math.c: Add little test for know gcc bug.

	* math/tgmath.h: Make complex versions of log10() only available
	if __USE_GNU.

	* stdlib/test-canon.c: Fix typo.

	* sysdeps/generic/setenv.c: Avoid compilation warnings.
	Reported by Jim Meyering.

	* sysdeps/generic/bits/errno.h: EILSEQ is an ISO C error number.
	* sysdeps/mach/hurd/bits/errno.h: Likewise.
	* sysdeps/standalone/bits/errno.h: Likewise.
	* sysdeps/unix/sysv/linux/bits/errno.h: Likewise.

	* sysdeps/i386/i586/memcpy.S: New file.
	* sysdeps/i386/i586/mempcpy.S: New file.

	* sysdeps/i386/i586/memset.S: Fix typo.

	* sysdeps/posix/getcwd.c: Define HAVE_MEMPCPY for _LIBC.  Add casts.

	* sysdeps/posix/system.c: Add comment to explain code.

	* sysdeps/wordsize-32/inttypes.h: Include <stddef.h> for wchar_t.
	Define PTRDIFF_{MIN,MAX}, SIG_ATOMIC_{MIN,MAX}, SIZE_MAX,
	WCHAR_{MIN,MAX}, WINT_{MIN,MAX}.
	Define wcstoimax, wcstoumax.
	* sysdeps/wordsize-64/inttypes.h: Likewise.

	* wcsmbs/wchar.h: Define WCHAR_{MIN,MAX} if not already defined.
	Declare __wcsto{l,ul,ll,ull}_internal only if not already done.

	* time/Makefile (routines): Add strfxtime.
	* time/strftime.c: Implement %F and %f format.
	* time/strfxtime.c: New file.
	* time/time.h: Define new types and symbols from ISO C 9X.

	* time/mktime.c: Little comment correction.

1997-11-10  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* sysdeps/libm-ieee754/s_sincosl.c: Fix typo.

	* sysdeps/libm-ieee754/s_tanl.c: Fix typo.

	* sysdeps/libm-ieee754/s_floorl.c: Correct typos.

	* sysdeps/libm-ieee754/e_remainderl.c: Replace
	EXTRACT_LDOUBLE_WORDS by GET_LDOUBLE_WORDS.

	* sysdeps/libm-ieee754/e_atan2l.c: Replace EXTRACT_LDOUBLE_WORDS
	by GET_LDOUBLE_WORDS.

	* sysdeps/libm-ieee754/s_scalbnl.c: Replace ";" by "," for correct
	variable declaration.
	* sysdeps/libm-ieee754/s_scalblnl.c: Likewise.

	* sysdeps/libm-ieee754/s_lrint.c (__lrint): Correct function.

	* math/libm-test.c (sqrt_test): Add test for sqrt (0.25).
	(asin_test): Add more test.

1997-11-10 23:34  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/libm-ieee754/e_asin.c: Add braces to make code clearer
	and to not confuse the poor compiler.
	* sysdeps/libm-ieee754/e_asinf.c: Likewise.
	Reported by vertex@cagent.com.

1997-11-09  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* elf/dl-lookup.c (do_lookup): Don't accept the base version if we
	require a specific one.

	* libio/oldfreopen.c: Bind old symbols to version GLIBC_2.0.
	* libio/oldiofopen.c: Likewise.
	* libio/oldstdfiles.c: Likewise.
	* libc.map: Export them.

1997-11-10 07:40  H.J. Lu  <hjl@gnu.ai.mit.edu>

	* stdlib/exit.c (exit): Handle recursive calls to exit ().

1997-11-09  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/m68k/fpu/s_llrint.c: Fixed to take double argument
	instead of long double.
	* sysdeps/m68k/fpu/s_llrintf.c: New file.
	* sysdeps/m68k/fpu/s_llrintl.c: New file.

	* sysdeps/libm-ieee754/s_llrint.c: Make compilable and fix
	overflow condition.
	* sysdeps/libm-ieee754/s_llrintf.c: Fix overflow condition.
	* sysdeps/libm-ieee754/s_llrintl.c: Likewise.
	* sysdeps/libm-ieee754/s_llround.c: Likewise.
	* sysdeps/libm-ieee754/s_llroundf.c: Likewise.
	* sysdeps/libm-ieee754/s_llroundl.c: Likewise.
	* sysdeps/libm-ieee754/s_lrint.c: Likewise.
	* sysdeps/libm-ieee754/s_lrintf.c: Likewise.
	* sysdeps/libm-ieee754/s_lrintl.c: Likewise.
	* sysdeps/libm-ieee754/s_lround.c: Likewise.
	* sysdeps/libm-ieee754/s_lroundf.c: Likewise.
	* sysdeps/libm-ieee754/s_lroundl.c: Likewise.

	* math/libm-test.c: Test all three variants of lrint and llrint.
	Fix typos in lround and llround tests.  Add tests for boundary
	cases for lrint and llround.

1997-11-08  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* manual/arith.texi: Misc doc fixes.
	* manual/ctype.texi: Likewise.
	* manual/pattern.texi: Likewise.
	* manual/terminal.texi: Likewise.

1997-11-08  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/unix/sysv/linux/xstatconv.c: Use struct assignment
	instead of memcpy to let the compiler use whatever it regards as
	optimal.
	* sysdeps/unix/sysv/linux/alpha/xstatconv.c: Likewise.

1997-11-08  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/unix/sysv/linux/Makefile (sysdep_headers)
	[$(subdir)=misc]: Add sys/prctl.h.
	* sysdeps/unix/sysv/linux/Dist: Distribute it.

1997-11-08  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* io/ftwtest-sh: Don't use the unknown which command, instead try
	pwd as /bin/pwd and /usr/bin/pwd.

1997-11-08  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* manual/maint.texi (Tools for Installation): Don't recommend
	broken version 3.76.1 of make.
	(Porting): Fix wording.

1997-11-06 06:13  H.J. Lu  <hjl@gnu.ai.mit.edu>

	* config.make.in (build-pic-default): New, defined with
	pic_default.

	* configure.in (pic_default): New, set to yes if PIC is
	default.

	* Makeconfig (CPPFLAGS-.o, CPPFLAGS-.op, CPPFLAGS-.og,
	CPPFLAGS-.ob): Add -DPIC if $(build-pic-default) is yes.

1997-11-09 18:15  Ulrich Drepper  <drepper@cygnus.com>

	* Makerules (libc.so): Fix typo.

	* csu/Makefile (CFLAGS-initfini.s): Correctly fix moving function
	definition.  Patch by Zack Weinberg <zack@rabi.phys.columbia.edu>.

	* stdlib/strtod.c: Handle numbers like 0.0e10000 correctly which
	produce ±0.0.  Reported by Joe Keane <jgk@jgk.org>.

	* sysdeps/libm-ieee754/s_ceill.c: Fix typos.
	* sysdeps/libm-ieee754/s_llrint.c: Correct code, it never worked.

1997-11-06 07:00  H.J. Lu  <hjl@gnu.ai.mit.edu>

	* sysdeps/unix/sysv/i386/i686/time.S: Removed.

1997-11-08 14:07  Thorsten Kukuk  <kukuk@vt.uni-paderborn.de>

	* nis/libnsl.map: Add __do_niscall2 for nis_cachemgr.

	* nis/nis_call.c: Set UDP resend timeout correct.

	* nis/nss_compat/compat-grp.c: Rewritten to make it faster.
	* nis/nss_compat/compat-pwd.c: Likewise.
	* nis/nss_compat/compat-spwd.c: Likewise.
	* nis/ypclnt.c: Fix UDP resend timeout, fix yp_bind/do_ypcall
	interaction.

	* inet/protocols/routed.h: Include sys/socket.h.
	* inet/protocols/talkd.h: Likewise.
	* inet/protocols/timed.h: Include rpc/types.h.
	* sunrpc/rpc/pmap_clnt.h: Include rpc/clnt.h.

1997-11-06 01:39  Ulrich Drepper  <drepper@cygnus.com>

	* Makerules (libc.so): Add missing closing brace.

1997-11-05  Brendan Kehoe  <brendan@lisa.cygnus.com>

	* libio.h (__P): Name its arg `p' instead of `params'.
	This was added solely to work around problems with
	the definition of __P in the Solaris math.h header.

1 files changed, 121 insertions, 89 deletions

diff --git a/db2/log/log_put.c b/db2/log/log_put.c
index 225595f33e..92d9563301 100644
--- a/db2/log/log_put.c
+++ b/db2/log/log_put.c
@@ -7,7 +7,7 @@
 #include "config.h"
 
 #ifndef lint
-static const char sccsid[] = "@(#)log_put.c	10.14 (Sleepycat) 9/23/97";
+static const char sccsid[] = "@(#)log_put.c	10.20 (Sleepycat) 11/2/97";
 #endif /* not lint */
 
 #ifndef NO_SYSTEM_INCLUDES
@@ -29,9 +29,10 @@ static const char sccsid[] = "@(#)log_put.c	10.14 (Sleepycat) 9/23/97";
 #include "common_ext.h"
 
 static int __log_fill __P((DB_LOG *, void *, u_int32_t));
+static int __log_flush __P((DB_LOG *, const DB_LSN *));
 static int __log_newfd __P((DB_LOG *));
-static int __log_write __P((DB_LOG *, void *, u_int32_t));
 static int __log_putr __P((DB_LOG *, const DBT *, u_int32_t));
+static int __log_write __P((DB_LOG *, void *, u_int32_t));
 
 /*
  * log_put --
@@ -63,11 +64,8 @@ log_put(dblp, lsn, dbt, flags)
 	}
 
 	LOCK_LOGREGION(dblp);
-
 	ret = __log_put(dblp, lsn, dbt, flags);
-
 	UNLOCK_LOGREGION(dblp);
-
 	return (ret);
 }
 
@@ -102,14 +100,10 @@ __log_put(dblp, lsn, dbt, flags)
 			    "log_put: record larger than maximum file size");
 			return (EINVAL);
 		}
-		if (lp->b_off != 0) {
-			if ((ret = __log_write(dblp, lp->buf, lp->b_off)) != 0)
-				return (ret);
-			if ((ret = __db_fsync(dblp->lfd)) != 0)
-				return (ret);
-			lp->s_lsn.file = lp->lsn.file;
-			lp->s_lsn.offset = lp->lsn.offset - 1;
-		}
+
+		/* Flush the log. */
+		if ((ret = __log_flush(dblp, NULL)) != 0)
+			return (ret);
 
 		/*
 		 * Save the last known offset from the previous file, we'll
@@ -117,9 +111,15 @@ __log_put(dblp, lsn, dbt, flags)
 		 */
 		lastoff = lp->lsn.offset;
 
+		/* Point the current LSN to the new file. */
 		++lp->lsn.file;
 		lp->lsn.offset = 0;
+
+		/* Reset the file write offset. */
 		lp->w_off = 0;
+
+		/* Reset the first-unwritten LSN for the buffer. */
+		lp->uw_lsn = lp->lsn;
 	} else
 		lastoff = 0;
 
@@ -149,56 +149,54 @@ __log_put(dblp, lsn, dbt, flags)
 	 *	Put out the checkpoint record (above).
 	 *	Save the LSN of the checkpoint in the shared region.
 	 *	Append the set of file name information into the log.
-	 *	Flush the current buffer contents to disk.
-	 *	Sync the log to disk.
-	 *	Save the time the checkpoint was written.
-	 *	Reset the bytes written since the last checkpoint.
 	 */
 	if (flags == DB_CHECKPOINT) {
 		lp->c_lsn = *lsn;
 
 		for (fnp = SH_TAILQ_FIRST(&dblp->lp->fq, __fname);
 		    fnp != NULL; fnp = SH_TAILQ_NEXT(fnp, q, __fname)) {
-			t.data = ADDR(dblp, fnp->name_off);
+			t.data = R_ADDR(dblp, fnp->name_off);
 			t.size = strlen(t.data) + 1;
 			memset(&fid_dbt, 0, sizeof(fid_dbt));
-			fid_dbt.data = ADDR(dblp, fnp->fileid_off);
+			fid_dbt.data = R_ADDR(dblp, fnp->fileid_off);
 			fid_dbt.size = DB_FILE_ID_LEN;
 			if ((ret = __log_register_log(dblp, NULL, &r_unused,
 			    0, &t, &fid_dbt, fnp->id, fnp->s_type)) != 0)
 				return (ret);
 		}
-		if (lp->b_off != 0 &&
-		    (ret = __log_write(dblp, lp->buf, lp->b_off)) != 0)
-			return (ret);
-		(void)time(&lp->chkpt);
-		lp->written = 0;
-
-		if ((ret = __db_fsync(dblp->lfd)) != 0)
-			return (ret);
-		lp->s_lsn.file = lp->lsn.file;
-		lp->s_lsn.offset = lp->lsn.offset - 1;
 	}
 
-	/* We always flush on a checkpoint. */
-	if (flags == DB_FLUSH || flags == DB_CHECKPOINT) {
-		if (lp->b_off != 0 &&
-		    (ret = __log_write(dblp, lp->buf, lp->b_off)) != 0)
+	/*
+	 * On a checkpoint or when flush is requested, we:
+	 *	Flush the current buffer contents to disk.
+	 *	Sync the log to disk.
+	 */
+	if (flags == DB_FLUSH || flags == DB_CHECKPOINT)
+		if ((ret = __log_flush(dblp, NULL)) != 0)
 			return (ret);
 
-		if ((ret = __db_fsync(dblp->lfd)) != 0)
-			return (ret);
-		lp->s_lsn.file = lp->lsn.file;
-		lp->s_lsn.offset = lp->lsn.offset - 1;
+	/*
+	 * On a checkpoint, we:
+	 *	Save the time the checkpoint was written.
+	 *	Reset the bytes written since the last checkpoint.
+	 */
+	if (flags == DB_CHECKPOINT) {
+		(void)time(&lp->chkpt);
+		lp->stat.st_wc_bytes = lp->stat.st_wc_mbytes = 0;
 	}
 
 	/*
-	 * If we just did I/O, i.e., this LSN could have spanned the start of
-	 * the in-core buffer, we remember it so that we can flush correctly
-	 * during a sync.
+	 * When an application calls the log_flush routine, we need to figure
+	 * out if the current buffer needs to be flushed.  The problem is that
+	 * if a record spans buffers, it's possible for the record continued
+	 * in the current buffer to have begun in a previous buffer.  Each time
+	 * we write a buffer, we update the first-unwritten LSN to point to the
+	 * first LSN after that written buffer.  If we have a spanning record,
+	 * correct that value to be the LSN that started it all, here.
 	 */
 	if (lsn->offset < lp->w_off && lsn->offset + lp->len > lp->w_off)
-		lp->span_lsn = *lsn;
+		lp->uw_lsn = *lsn;
+
 	return (0);
 }
 
@@ -248,6 +246,24 @@ log_flush(dblp, lsn)
 	DB_LOG *dblp;
 	const DB_LSN *lsn;
 {
+	int ret;
+
+	LOCK_LOGREGION(dblp);
+	ret = __log_flush(dblp, lsn);
+	UNLOCK_LOGREGION(dblp);
+	return (ret);
+}
+
+/*
+ * __log_flush --
+ *	Write all records less than or equal to the specified LSN; internal
+ *	version.
+ */
+static int
+__log_flush(dblp, lsn)
+	DB_LOG *dblp;
+	const DB_LSN *lsn;
+{
 	DB_LSN t_lsn;
 	LOG *lp;
 	int ret;
@@ -255,60 +271,64 @@ log_flush(dblp, lsn)
 	ret = 0;
 	lp = dblp->lp;
 
-	LOCK_LOGREGION(dblp);
-
-	/* If no LSN specified, flush the entire log. */
+	/*
+	 * If no LSN specified, flush the entire log by setting the flush LSN
+	 * to the last LSN written in the log.  Otherwise, check that the LSN
+	 * isn't a non-existent record for the log.
+	 */
 	if (lsn == NULL) {
 		t_lsn.file = lp->lsn.file;
 		t_lsn.offset = lp->lsn.offset - lp->len;
 		lsn = &t_lsn;
-	}
-
-	/* If it's a non-existent record, it's an error. */
-	if (lsn->file > lp->lsn.file ||
-	    (lsn->file == lp->lsn.file && lsn->offset > lp->lsn.offset)) {
-		__db_err(dblp->dbenv, "log_flush: LSN past current end-of-log");
-		ret = EINVAL;
-		goto ret1;
-	}
-
-	/*
-	 * If it's from a previous file, we're done because we sync each
-	 * file when we move to a new one.
-	 */
-	if (lsn->file < lp->lsn.file)
-		goto ret1;
+	} else
+		if (lsn->file > lp->lsn.file ||
+		    (lsn->file == lp->lsn.file &&
+		    lsn->offset > lp->lsn.offset - lp->len)) {
+			__db_err(dblp->dbenv,
+			    "log_flush: LSN past current end-of-log");
+			return (EINVAL);
+		}
 
 	/*
-	 * If it's less than the last-sync'd offset, we've already sync'd
-	 * this LSN.
+	 * If the LSN is less than the last-sync'd LSN, we're done.  Note,
+	 * the last-sync LSN saved in s_lsn is the LSN of the first byte 
+	 * that has not yet been written to disk, so the test is <, not <=.
 	 */
-	if (lsn->offset <= lp->s_lsn.offset)
-		goto ret1;
+	if (lsn->file < lp->s_lsn.file ||
+	    (lsn->file == lp->s_lsn.file && lsn->offset < lp->s_lsn.offset))
+		return (0);
 
 	/*
 	 * We may need to write the current buffer.  We have to write the
-	 * current buffer if the sync LSN is greater than or equal to the
-	 * saved spanning-LSN.
+	 * current buffer if the flush LSN is greater than or equal to the
+	 * first-unwritten LSN (uw_lsn).  If we write the buffer, then we
+	 * update the first-unwritten LSN.
 	 */
-	if (lsn->file >= lp->span_lsn.file &&
-	    lsn->offset >= lp->span_lsn.offset)
+	if (lp->b_off != 0 &&
+	    lsn->file >= lp->uw_lsn.file && lsn->offset >= lp->uw_lsn.offset)
 		if ((ret = __log_write(dblp, lp->buf, lp->b_off)) != 0)
-			goto ret1;
+			return (ret);
 
-	/* Acquire a file descriptor if we don't have one. */
-	if (dblp->lfname != dblp->lp->lsn.file &&
-	    (ret = __log_newfd(dblp)) != 0)
-		goto ret1;
+	/*
+	 * It's possible that this thread may never have written to this log
+	 * file.  Acquire a file descriptor if we don't already have one.
+	 */
+	if (dblp->lfname != dblp->lp->lsn.file)
+		if ((ret = __log_newfd(dblp)) != 0)
+			return (ret);
 
+	/* Sync all writes to disk. */
 	if ((ret = __db_fsync(dblp->lfd)) != 0)
-		goto ret1;
+		return (ret);
+	++lp->stat.st_scount;
 
-	lp->s_lsn.file = lp->lsn.file;
-	lp->s_lsn.offset = lsn->offset;
+	/*
+	 * Set the last-synced LSN, the first LSN after the last record
+	 * that we know is on disk.
+	 */
+	lp->s_lsn = lp->uw_lsn;
 
-ret1:	UNLOCK_LOGREGION(dblp);
-	return (ret);
+	return (0);
 }
 
 /*
@@ -385,17 +405,32 @@ __log_write(dblp, addr, len)
 	 * Seek to the offset in the file (someone may have written it
 	 * since we last did).
 	 */
-	if ((ret = __db_lseek(dblp->lfd, 0, 0, lp->w_off, SEEK_SET)) != 0)
+	if ((ret = __db_seek(dblp->lfd, 0, 0, lp->w_off, SEEK_SET)) != 0)
 		return (ret);
 	if ((ret = __db_write(dblp->lfd, addr, len, &nw)) != 0)
 		return (ret);
 	if (nw != (int32_t)len)
 		return (EIO);
 
-	/* Update the seek offset and reset the buffer offset. */
+	/*
+	 * Reset the buffer offset, update the seek offset, and update the
+	 * first-unwritten LSN.
+	 */
 	lp->b_off = 0;
 	lp->w_off += len;
-	lp->written += len;
+	lp->uw_lsn.file = lp->lsn.file;
+	lp->uw_lsn.offset = lp->w_off;
+
+	/* Update written statistics. */
+	if ((lp->stat.st_w_bytes += len) >= MEGABYTE) {
+		lp->stat.st_w_bytes -= MEGABYTE;
+		++lp->stat.st_w_mbytes;
+	}
+	if ((lp->stat.st_wc_bytes += len) >= MEGABYTE) {
+		lp->stat.st_wc_bytes -= MEGABYTE;
+		++lp->stat.st_wc_mbytes;
+	}
+	++lp->stat.st_wcount;
 
 	return (0);
 }
@@ -415,11 +450,8 @@ log_file(dblp, lsn, namep, len)
 	char *p;
 
 	LOCK_LOGREGION(dblp);
-
 	ret = __log_name(dblp, lsn->file, &p);
-
 	UNLOCK_LOGREGION(dblp);
-
 	if (ret != 0)
 		return (ret);
 
@@ -429,7 +461,7 @@ log_file(dblp, lsn, namep, len)
 		return (ENOMEM);
 	}
 	(void)strcpy(namep, p);
-	free(p);
+	__db_free(p);
 
 	return (0);
 }
@@ -455,7 +487,7 @@ __log_newfd(dblp)
 	dblp->lfname = dblp->lp->lsn.file;
 	if ((ret = __log_name(dblp, dblp->lfname, &p)) != 0)
 		return (ret);
-	if ((ret = __db_fdopen(p,
+	if ((ret = __db_open(p,
 	    DB_CREATE | DB_SEQUENTIAL,
 	    DB_CREATE | DB_SEQUENTIAL,
 	    dblp->lp->persist.mode, &dblp->lfd)) != 0)
@@ -472,14 +504,14 @@ __log_newfd(dblp)
  * PUBLIC: int __log_name __P((DB_LOG *, int, char **));
  */
 int
-__log_name(dblp, fileno, namep)
+__log_name(dblp, filenumber, namep)
 	DB_LOG *dblp;
 	char **namep;
-	int fileno;
+	int filenumber;
 {
 	char name[sizeof(LFNAME) + 10];
 
-	(void)snprintf(name, sizeof(name), LFNAME, fileno);
+	(void)snprintf(name, sizeof(name), LFNAME, filenumber);
 	return (__db_appname(dblp->dbenv,
 	    DB_APP_LOG, dblp->dir, name, NULL, namep));
 }