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, 205 insertions, 0 deletions

diff --git a/db2/mp/mp_sync.c b/db2/mp/mp_sync.c
new file mode 100644
index 0000000000..4f1205661a
--- /dev/null
+++ b/db2/mp/mp_sync.c
@@ -0,0 +1,205 @@
+/*-
+ * See the file LICENSE for redistribution information.
+ *
+ * Copyright (c) 1996, 1997
+ *	Sleepycat Software.  All rights reserved.
+ */
+#include "config.h"
+
+#ifndef lint
+static const char sccsid[] = "@(#)mp_sync.c	10.8 (Sleepycat) 7/2/97";
+#endif /* not lint */
+
+#ifndef NO_SYSTEM_INCLUDES
+#include <sys/types.h>
+
+#include <errno.h>
+#include <string.h>
+#endif
+
+#include "db_int.h"
+#include "shqueue.h"
+#include "db_shash.h"
+#include "mp.h"
+#include "common_ext.h"
+
+/*
+ * memp_sync --
+ *	Mpool sync function.
+ */
+int
+memp_sync(dbmp, lsnp)
+	DB_MPOOL *dbmp;
+	DB_LSN *lsnp;
+{
+	BH *bhp;
+	DB_ENV *dbenv;
+	MPOOL *mp;
+	MPOOLFILE *mfp;
+	int can_write, wrote, lsn_cnt, restart, ret;
+
+	dbenv = dbmp->dbenv;
+
+	if (dbmp->dbenv->lg_info == NULL) {
+		__db_err(dbenv, "memp_sync requires logging");
+		return (EINVAL);
+	}
+
+	LOCKREGION(dbmp);
+
+	/*
+	 * If the application is asking about a previous call, and we haven't
+	 * found any buffers that the application holding the pin couldn't
+	 * write, return yes or no based on the current count.  Note, if the
+	 * application is asking about a LSN *smaller* than one we've already
+	 * handled, then we return based on the count for that LSN.
+	 */
+	mp = dbmp->mp;
+	if (!F_ISSET(mp, MP_LSN_RETRY) && log_compare(lsnp, &mp->lsn) <= 0) {
+		if (mp->lsn_cnt == 0) {
+			*lsnp = mp->lsn;
+			ret = 0;
+		} else
+			ret = DB_INCOMPLETE;
+
+		UNLOCKREGION(dbmp);
+		return (ret);
+	}
+
+	/* Else, it's a new checkpoint. */
+	F_CLR(mp, MP_LSN_RETRY);
+
+	/*
+	 * Save the LSN.  We know that it's a new LSN or larger than the one
+	 * for which we were already doing a checkpoint.  (BTW, I don't expect
+	 * to see multiple LSN's from the same or multiple processes, but You
+	 * Just Never Know.  Responding as if they all called with the largest
+	 * of the LSNs specified makes everything work.
+	 *
+	 * We don't currently use the LSN we save.  We could potentially save
+	 * the last-written LSN in each buffer header and use it to determine
+	 * what buffers need to be written.  The problem with this is that it's
+	 * sizeof(LSN) more bytes of buffer header.  We currently write all the
+	 * dirty buffers instead.
+	 *
+	 * Walk the list of shared memory segments clearing the count of
+	 * buffers waiting to be written.
+	 */
+	mp->lsn = *lsnp;
+	mp->lsn_cnt = 0;
+	for (mfp = SH_TAILQ_FIRST(&dbmp->mp->mpfq, __mpoolfile);
+	    mfp != NULL; mfp = SH_TAILQ_NEXT(mfp, q, __mpoolfile))
+		mfp->lsn_cnt = 0;
+
+	/*
+	 * Walk the list of buffers and mark all dirty buffers to be written
+	 * and all pinned buffers to be potentially written.  We do this in
+	 * single fell swoop while holding the region locked so that processes
+	 * can't make new buffers dirty, causing us to never finish.  Since
+	 * the application may have restarted the sync, clear any BH_WRITE
+	 * flags that appear to be left over.
+	 */
+	can_write = lsn_cnt = 0;
+	for (lsn_cnt = 0, bhp = SH_TAILQ_FIRST(&mp->bhq, __bh);
+	    bhp != NULL; bhp = SH_TAILQ_NEXT(bhp, q, __bh))
+		if (F_ISSET(bhp, BH_DIRTY) || bhp->ref != 0) {
+			F_SET(bhp, BH_WRITE);
+
+			if (bhp->ref == 0)
+				can_write = 1;
+
+			mfp = ADDR(dbmp, bhp->mf_offset);
+			++mfp->lsn_cnt;
+
+			++lsn_cnt;
+		} else
+			F_CLR(bhp, BH_WRITE);
+
+	mp->lsn_cnt = lsn_cnt;
+
+	/* If there no buffers we can write, we're done. */
+	if (!can_write) {
+		UNLOCKREGION(dbmp);
+		return (mp->lsn_cnt ? DB_INCOMPLETE : 0);
+	}
+
+	/*
+	 * Write any buffers that we can.  Restart the walk after each write,
+	 * __memp_pgwrite() discards and reacquires the region lock during I/O.
+	 */
+retry:	for (bhp = SH_TAILQ_FIRST(&mp->bhq, __bh);
+	    bhp != NULL; bhp = SH_TAILQ_NEXT(bhp, q, __bh)) {
+		/* Ignore pinned or locked buffers. */
+		if (!F_ISSET(bhp, BH_WRITE) ||
+		    bhp->ref != 0 || F_ISSET(bhp, BH_LOCKED))
+			continue;
+
+		mfp = ADDR(dbmp, bhp->mf_offset);
+		if ((ret =
+		    __memp_bhwrite(dbmp, mfp, bhp, &restart, &wrote)) != 0)
+			goto err;
+		if (wrote) {
+			if (restart)
+				goto retry;
+			continue;
+		}
+		__db_err(dbenv, "%s: unable to flush page: %lu",
+		    ADDR(dbmp, mfp->path_off), (u_long)bhp->pgno);
+		ret = EPERM;
+		goto err;
+	}
+	ret = mp->lsn_cnt ? DB_INCOMPLETE : 0;
+
+err:	UNLOCKREGION(dbmp);
+	return (ret);
+}
+
+/*
+ * memp_fsync --
+ *	Mpool file sync function.
+ */
+int
+memp_fsync(dbmfp)
+	DB_MPOOLFILE *dbmfp;
+{
+	BH *bhp;
+	DB_MPOOL *dbmp;
+	size_t mf_offset;
+	int pincnt, restart, ret, wrote;
+
+	/* We don't sync temporary files -- what's the use? */
+	if (F_ISSET(dbmfp, MP_PATH_TEMP))
+		return (0);
+
+	dbmp = dbmfp->dbmp;
+	ret = 0;
+
+	mf_offset = OFFSET(dbmp, dbmfp->mfp);
+
+	LOCKREGION(dbmp);
+
+	/*
+	 * Walk the list of buffer headers for the MPOOLFILE, and write out any
+	 * dirty buffers that we can.
+	 */
+retry:	pincnt = 0;
+	for (bhp = SH_TAILQ_FIRST(&dbmp->mp->bhq, __bh);
+	    bhp != NULL; bhp = SH_TAILQ_NEXT(bhp, q, __bh))
+		if (F_ISSET(bhp, BH_DIRTY) && bhp->mf_offset == mf_offset) {
+			if (bhp->ref != 0 || F_ISSET(bhp, BH_LOCKED)) {
+				++pincnt;
+				continue;
+			}
+			if ((ret =
+			    __memp_pgwrite(dbmfp, bhp, &restart, &wrote)) != 0)
+				goto err;
+			if (!wrote)
+				++pincnt;
+			if (restart)
+				goto retry;
+		}
+
+	UNLOCKREGION(dbmp);
+
+err:	return (ret == 0 ? (pincnt ? DB_INCOMPLETE : 0) : ret);
+}