Update.cvs/libc-ud-970904

1997-09-05 03:15  Ulrich Drepper  <drepper@cygnus.com>

	* Makefile (subdirs): Reorganize order so that nss follows add-ons.
	* config.make.in (LDAP): Add.
	* configure.in: Prepare for ldap add-on.
	* shlib-versions: Add version numbers for ldap NSS module.
	* nss/Makefile: Add rules to build ldap NSS module.

	* db/btree/bt_page.c (__bt_free): Update meta data information.

	Update db from db-2.3.6.
	* db2/db.h: Updated.
	* db2/btree/bt_close.c: Updated.
	* db2/btree/bt_compare.c: Updated.
	* db2/btree/bt_conv.c: Updated.
	* db2/btree/bt_cursor.c: Updated.
	* db2/btree/bt_delete.c: Updated.
	* db2/btree/bt_put.c: Updated.
	* db2/btree/bt_rec.c: Updated.
	* db2/btree/bt_recno.c: Updated.
	* db2/btree/bt_search.c: Updated.
	* db2/btree/bt_split.c: Updated.
	* db2/btree/bt_stat.c: Updated.
	* db2/common/db_appinit.c: Updated.
	* db2/common/db_apprec.c: Updated.
	* db2/common/db_byteorder.c: Updated.
	* db2/common/db_err.c: Updated.
	* db2/common/db_region.c: Updated.
	* db2/db/db.c: Updated.
	* db2/db/db_conv.c: Updated.
	* db2/db/db_dup.c: Updated.
	* db2/db/db_pr.c: Updated.
	* db2/db/db_ret.c: Updated.
	* db2/db185/db185.c: Updated.
	* db2/dbm/dbm.c: Updated.
	* db2/hash/hash_dup.c: Updated.
	* db2/include/db_am.h: Updated.
	* db2/include/db_page.h: Updated.
	* db2/include/mp.h: Updated.
	* db2/include/queue.h: Updated.
	* db2/log/log.c: Updated.
	* db2/log/log_findckp.c: Updated.
	* db2/log/log_get.c: Updated.
	* db2/log/log_rec.c: Updated.
	* db2/mp/mp_bh.c: Updated.
	* db2/mp/mp_fopen.c: Updated.
	* db2/mp/mp_pr.c: Updated.
	* db2/mp/mp_sync.c: Updated.
	* db2/mutex/x86.gcc: Updated.
	* db2/os/db_os_dir.c: Updated.
	* db2/os/db_os_fid.c: Updated.
	* db2/progs/db_archive/db_archive.c: Updated.
	* db2/progs/db_checkpoint/db_checkpoint.c: Updated.
	* db2/progs/db_deadlock/db_deadlock.c: Updated.
	* db2/progs/db_dump/db_dump.c: Updated.
	* db2/progs/db_dump185/db_dump185.c: Updated.
	* db2/progs/db_load/db_load.c: Updated.
	* db2/progs/db_printlog/db_printlog.c: Updated.
	* db2/progs/db_recover/db_recover.c: Updated.
	* db2/progs/db_stat/db_stat.c: Updated.
	* db2/txn/txn.c: Updated.
	* db2/txn/txn_rec.c: Updated.

	* db2/Makefile: Add rule to build db_printlog.
	* db2/config.h: Don't include endian.h and don't define
	WORDS_BIGENDIAN.  Only define HAVE_ENDIAN_H.

	* elf/dl-open.c (_dl_open): Make thread-safe.
	* elf/dl-close.c (_dl_close): Likewise.
	* elf/dlclose.c: Pretty print.
	* elf/dl-version.c (make_string): Use __strdup not strdup.
	(find_needed): Don't use l_searchlist of _dl_loaded, use the
	l_next list.
	* elf/dl-deps.c (_dl_map_object_deps): Remove variable head.

	* manual/math.texi: Add note about == and != for FP values.
	* manual/message.texi: Mention problems with relative paths and
	binstextdomain.
	* manual/string.texi: Mark strdupa and strndupa correctly as macros.

	* sunrpc/Makefile (CFLAGS-xkey_prot.c): Define to prevent warnings.
	* sunrpc/rpc_cout.c: Avoid needless races around return value.

	* sysdeps/generic/stpcpy.c: Include <config.h> if wanted.

	Update from tzdata-1997h.
	* time/africa: Updated.
	* time/europe: Updated.
	* time/iso3166.tab: Updated.
	* time/northamerica: Updated.
	* time/southamerica: Updated.
	* time/zone.tab: Updated.

1997-09-04 13:19  Richard Henderson  <rth@cygnus.com>

	* sysdeps/alpha/w_sqrt.S: Removed.
	* sysdeps/alpha/fpu/e_sqrt.c: New.  Obey -mieee and -mieee-with-inexact
	and build a version that is as fast as possible given the constraint.

1997-08-30  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* manual/maint.texi: Document some defaults for configuration
	parameters.

1997-09-04 15:57  Ulrich Drepper  <drepper@cygnus.com>

	* termios/cfsetspeed.c (cfsetspeed): Change return value to int.
	* termios/termios.h: Change prototype accordingly.
	Reported by Andreas Jaeger <aj@arthur.rhein-neckar.de>.

1997-07-26 14:42  H.J. Lu  <hjl@gnu.ai.mit.edu>

	* libio/stdfiles.c (_libio_using_thunks): Define if
	_G_USING_THUNKS is defined.

	* libio/_G_config.h: Moved to ...
	* sysdeps/generic/_G_config.h: ...here.

	* sysdeps/unix/sysv/linux/_G_config.h: New,
	Add vtable thunks support.

1997-09-02  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/m68k/Makefile (pic-ccflag): Override it for more
	efficient code (together with a change in gcc).

	* Makeconfig (pic-ccflag): New variable.
	(CFLAGS-.os): Use it instead of hardcoding -fPIC.

1997-09-02  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/m68k/dl-machine.h (elf_machine_load_address): Use
	_dl_start instead of a local label, to avoid getting an unreadable
	label name.

1997-09-02  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* nss/Makefile ($(objpfx)libnss_db.so): Use $(dbobjdir) to find
	libdb.so.

	* Makeconfig (dbobjdir): Use db2.

1997-08-31  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* manual/maint.texi (Porting to Unix): Update description of the
	implementation of Unix system calls.
	(Contributors): Use real umlaut in tege's name.

1997-08-30  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/libm-ieee754/w_gamma.c: Make compilable with
	_IEEE_LIBM.
	* sysdeps/libm-ieee754/w_gammaf.c: Likewise.
	* sysdeps/libm-ieee754/w_gammal.c: Likewise.

1 files changed, 55 insertions, 4 deletions

diff --git a/db2/mp/mp_bh.c b/db2/mp/mp_bh.c
index e1b68ce450..3d0d053b5f 100644
--- a/db2/mp/mp_bh.c
+++ b/db2/mp/mp_bh.c
@@ -7,7 +7,7 @@
 #include "config.h"
 
 #ifndef lint
-static const char sccsid[] = "@(#)mp_bh.c	10.12 (Sleepycat) 8/20/97";
+static const char sccsid[] = "@(#)mp_bh.c	10.15 (Sleepycat) 8/29/97";
 #endif /* not lint */
 
 #ifndef NO_SYSTEM_INCLUDES
@@ -24,6 +24,8 @@ static const char sccsid[] = "@(#)mp_bh.c	10.12 (Sleepycat) 8/20/97";
 #include "mp.h"
 #include "common_ext.h"
 
+static int __memp_upgrade __P((DB_MPOOL *, DB_MPOOLFILE *, MPOOLFILE *));
+
 /*
  * __memp_bhwrite --
  *	Write the page associated with a given bucket header.
@@ -48,14 +50,20 @@ __memp_bhwrite(dbmp, mfp, bhp, restartp, wrotep)
 		*wrotep = 0;
 
 	/*
-	 * Walk the process' DB_MPOOLFILE list and try and find a file
-	 * descriptor for this file.
+	 * Walk the process' DB_MPOOLFILE list and find a file descriptor for
+	 * the file.  We also check that the descriptor is open for writing.
+	 * If we find a descriptor on the file that's not open for writing, we
+	 * try and upgrade it to make it writeable.
 	 */
 	LOCKHANDLE(dbmp, &dbmp->mutex);
 	for (dbmfp = TAILQ_FIRST(&dbmp->dbmfq);
 	    dbmfp != NULL; dbmfp = TAILQ_NEXT(dbmfp, q))
-		if (dbmfp->mfp == mfp)
+		if (dbmfp->mfp == mfp) {
+			if (F_ISSET(dbmfp, MP_READONLY) &&
+			    __memp_upgrade(dbmp, dbmfp, mfp))
+				return (0);
 			break;
+		}
 	UNLOCKHANDLE(dbmp, &dbmp->mutex);
 	if (dbmfp != NULL)
 		goto found;
@@ -80,6 +88,10 @@ __memp_bhwrite(dbmp, mfp, bhp, restartp, wrotep)
 	/*
 	 * Try and open the file; ignore any error, assume it's a permissions
 	 * problem.
+	 *
+	 * XXX
+	 * There's no negative cache here, so we may repeatedly try and open
+	 * files that we have previously tried (and failed) to open.
 	 */
 	dbt.size = mfp->pgcookie_len;
 	dbt.data = ADDR(dbmp, mfp->pgcookie_off);
@@ -435,3 +447,42 @@ __memp_bhfree(dbmp, mfp, bhp, free_mem)
 	if (free_mem)
 		__db_shalloc_free(dbmp->addr, bhp);
 }
+
+/*
+ * __memp_upgrade --
+ *	Upgrade a file descriptor from readonly to readwrite.
+ */
+static int
+__memp_upgrade(dbmp, dbmfp, mfp)
+	DB_MPOOL *dbmp;
+	DB_MPOOLFILE *dbmfp;
+	MPOOLFILE *mfp;
+{
+	int fd;
+
+	/*
+	 * !!!
+	 * We expect the handle to already be locked.
+	 */
+
+	/* Check to see if we've already upgraded. */
+	if (F_ISSET(dbmfp, MP_UPGRADE))
+		return (0);
+
+	/* Check to see if we've already failed. */
+	if (F_ISSET(dbmfp, MP_UPGRADE_FAIL))
+		return (1);
+
+	/* Try the open. */
+	if (__db_fdopen(ADDR(dbmp, mfp->path_off), 0, 0, 0, &fd) != 0) {
+		F_SET(dbmfp, MP_UPGRADE_FAIL);
+		return (1);
+	}
+
+	/* Swap the descriptors and set the upgrade flag. */
+	(void)close(dbmfp->fd);
+	dbmfp->fd = fd;
+	F_SET(dbmfp, MP_UPGRADE);
+
+	return (0);
+}