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authorUlrich Drepper <drepper@redhat.com>1998-06-09 15:16:55 +0000
committerUlrich Drepper <drepper@redhat.com>1998-06-09 15:16:55 +0000
commitbf7997b65c7887d2acda95f5201d818a19d81711 (patch)
treeda3583de3a0b5892f90a4b1eb773a87b554ae37e /db2/mp/mp_fput.c
parent7646e67e6cc4c738a7b402c60fed39d52db0433b (diff)
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Update.
1998-06-09 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/sysv/linux/netinet/ip.h (struct ip_options): Define __data member only for gcc. Reported by ak@muc.de. * misc/mntent.h: Undo last patch. * sysdeps/unix/sysv/linux/fstatvfs.c (fstatvfs): Undo last patch. * misc/tst/mntent.c: Adjust code for this change. * io/fts.c: Updated from a slightly more recent BSD version. * io/fts.h: Likewise. * libc.map: Add __libc_stack_end. * db2/Makefile (routines): Add lock_region. * db2/config.h: Update from db-2.4.14. * db2/db.h: Likewise. * db2/db_185.h: Likewise. * db2/db_int.h: Likewise. * db2/bt_close.c: Likewise. * db2/bt_compare.c: Likewise. * db2/bt_conv.c: Likewise. * db2/bt_cursor.c: Likewise. * db2/bt_delete.c: Likewise. * db2/bt_open.c: Likewise. * db2/bt_page.c: Likewise. * db2/bt_put.c: Likewise. * db2/bt_rec.c: Likewise. * db2/bt_recno.c: Likewise. * db2/bt_rsearch.c: Likewise. * db2/bt_search.c: Likewise. * db2/bt_split.c: Likewise. * db2/bt_stat.c: Likewise. * db2/btree.src: Likewise. * db2/btree_auto.c: Likewise. * db2/getlong.c: Likewise. * db2/db_appinit.c: Likewise. * db2/db_apprec.c: Likewise. * db2/db_byteorder.c: Likewise. * db2/db_err.c: Likewise. * db2/db_log2.c: Likewise. * db2/db_region.c: Likewise. * db2/db_salloc.c: Likewise. * db2/db_shash.c: Likewise. * db2/db.c: Likewise. * db2/db.src: Likewise. * db2/db_auto.c: Likewise. * db2/db_conv.c: Likewise. * db2/db_dispatch.c: Likewise. * db2/db_dup.c: Likewise. * db2/db_overflow.c: Likewise. * db2/db_pr.c: Likewise. * db2/db_rec.c: Likewise. * db2/db_ret.c: Likewise. * db2/db_thread.c: Likewise. * db2/db185.c: Likewise. * db2/db185_int.h: Likewise. * db2/dbm.c: Likewise. * db2/hash.c: Likewise. * db2/hash.src: Likewise. * db2/hash_auto.c: Likewise. * db2/hash_conv.c: Likewise. * db2/hash_debug.c: Likewise. * db2/hash_dup.c: Likewise. * db2/hash_func.c: Likewise. * db2/hash_page.c: Likewise. * db2/hash_rec.c: Likewise. * db2/hash_stat.c: Likewise. * db2/btree.h: Likewise. * db2/btree_ext.h: Likewise. * db2/clib_ext.h: Likewise. * db2/common_ext.h: Likewise. * db2/cxx_int.h: Likewise. * db2/db.h.src: Likewise. * db2/db_185.h.src: Likewise. * db2/db_am.h: Likewise. * db2/db_auto.h: Likewise. * db2/db_cxx.h: Likewise. * db2/db_dispatch.h: Likewise. * db2/db_ext.h: Likewise. * db2/db_int.h.src: Likewise. * db2/db_page.h: Likewise. * db2/db_shash.h: Likewise. * db2/db_swap.h: Likewise. * db2/hash.h: Likewise. * db2/hash_ext.h: Likewise. * db2/lock.h: Likewise. * db2/lock_ext.h: Likewise. * db2/log.h: Likewise. * db2/log_ext.h: Likewise. * db2/mp.h: Likewise. * db2/mp_ext.h: Likewise. * db2/mutex_ext.h: Likewise. * db2/os_ext.h: Likewise. * db2/os_func.h: Likewise. * db2/queue.h: Likewise. * db2/shqueue.h: Likewise. * db2/txn.h: Likewise. * db2/lock.c: Likewise. * db2/lock_conflict.c: Likewise. * db2/lock_deadlock.c: Likewise. * db2/lock_region.c: Likewise. * db2/lock_util.c: Likewise. * db2/log.c: Likewise. * db2/log.src: Likewise. * db2/log_archive.c: Likewise. * db2/log_auto.c: Likewise. * db2/log_compare.c: Likewise. * db2/log_findckp.c: Likewise. * db2/log_get.c: Likewise. * db2/log_put.c: Likewise. * db2/log_rec.c: Likewise. * db2/log_register.c: Likewise. * db2/mp_bh.c: Likewise. * db2/mp_fget.c: Likewise. * db2/mp_fopen.c: Likewise. * db2/mp_fput.c: Likewise. * db2/mp_fset.c: Likewise. * db2/mp_open.c: Likewise. * db2/mp_pr.c: Likewise. * db2/mp_region.c: Likewise. * db2/mp_sync.c: Likewise. * db2/68020.gcc: Likewise. * db2/mutex.c: Likewise. * db2/parisc.gcc: Likewise. * db2/parisc.hp: Likewise. * db2/sco.cc: Likewise. * db2/os_abs.c: Likewise. * db2/os_alloc.c: Likewise. * db2/os_config.c: Likewise. * db2/os_dir.c: Likewise. * db2/os_fid.c: Likewise. * db2/os_fsync.c: Likewise. * db2/os_map.c: Likewise. * db2/os_oflags.c: Likewise. * db2/os_open.c: Likewise. * db2/os_rpath.c: Likewise. * db2/os_rw.c: Likewise. * db2/os_seek.c: Likewise. * db2/os_sleep.c: Likewise. * db2/os_spin.c: Likewise. * db2/os_stat.c: Likewise. * db2/os_unlink.c: Likewise. * db2/db_archive.c: Likewise. * db2/db_checkpoint.c: Likewise. * db2/db_deadlock.c: Likewise. * db2/db_dump.c: Likewise. * db2/db_dump185.c: Likewise. * db2/db_load.c: Likewise. * db2/db_printlog.c: Likewise. * db2/db_recover.c: Likewise. * db2/db_stat.c: Likewise. * db2/txn.c: Likewise. * db2/txn.src: Likewise. * db2/txn_auto.c: Likewise. * db2/txn_rec.c: Likewise. * elf/rtld.c: Move definition of __libc_stack_end to ... * sysdeps/generic/dl-sysdep.h: ...here. * sysdeps/unix/sysv/linux/fstatvfs.c: Handle nodiratime option. * sysdeps/unix/sysv/linux/bits/statvfs.h: Define ST_NODIRATIME. * sysdeps/unix/sysv/linux/sys/mount.h: Define MS_NODIRATIME. 1998-06-08 21:44 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/sysv/linux/fstatvfs.c: Handle constant option string from mntent correctly. 1998-06-06 Andreas Jaeger <aj@arthur.rhein-neckar.de> * sunrpc/Makefile (generated): Correct typo. 1998-06-04 Philip Blundell <philb@gnu.org> * elf/elf.h (EM_ARM, et al.): New definitions. * sysdeps/arm/dl-machine.h: Update for new draft ARM ELF ABI.
Diffstat (limited to 'db2/mp/mp_fput.c')
-rw-r--r--db2/mp/mp_fput.c64
1 files changed, 33 insertions, 31 deletions
diff --git a/db2/mp/mp_fput.c b/db2/mp/mp_fput.c
index 335ee9f..5675493 100644
--- a/db2/mp/mp_fput.c
+++ b/db2/mp/mp_fput.c
@@ -1,20 +1,19 @@
/*-
* See the file LICENSE for redistribution information.
*
- * Copyright (c) 1996, 1997
+ * Copyright (c) 1996, 1997, 1998
* Sleepycat Software. All rights reserved.
*/
#include "config.h"
#ifndef lint
-static const char sccsid[] = "@(#)mp_fput.c 10.17 (Sleepycat) 12/20/97";
+static const char sccsid[] = "@(#)mp_fput.c 10.22 (Sleepycat) 4/26/98";
#endif /* not lint */
#ifndef NO_SYSTEM_INCLUDES
#include <sys/types.h>
#include <errno.h>
-#include <stdlib.h>
#endif
#include "db_int.h"
@@ -31,12 +30,11 @@ int
memp_fput(dbmfp, pgaddr, flags)
DB_MPOOLFILE *dbmfp;
void *pgaddr;
- int flags;
+ u_int32_t flags;
{
BH *bhp;
DB_MPOOL *dbmp;
MPOOL *mp;
- MPOOLFILE *mfp;
int wrote, ret;
dbmp = dbmfp->dbmp;
@@ -71,8 +69,9 @@ memp_fput(dbmfp, pgaddr, flags)
/*
* If we're mapping the file, there's nothing to do. Because we can
- * quit mapping at any time, we have to check on each buffer to see
- * if it's in the map region.
+ * stop mapping the file at any time, we have to check on each buffer
+ * to see if the address we gave the application was part of the map
+ * region.
*/
if (dbmfp->addr != NULL && pgaddr >= dbmfp->addr &&
(u_int8_t *)pgaddr <= (u_int8_t *)dbmfp->addr + dbmfp->len)
@@ -98,36 +97,33 @@ memp_fput(dbmfp, pgaddr, flags)
F_SET(bhp, BH_DISCARD);
/*
- * If more than one reference to the page, we're done. Ignore discard
- * flags (for now) and leave it at its position in the LRU chain. The
- * rest gets done at last reference close.
+ * Check for a reference count going to zero. This can happen if the
+ * application returns a page twice.
*/
-#ifdef DEBUG
if (bhp->ref == 0) {
- __db_err(dbmp->dbenv,
- "Unpinned page returned: reference count on page %lu went negative.",
- (u_long)bhp->pgno);
- abort();
+ __db_err(dbmp->dbenv, "%s: page %lu: unpinned page returned",
+ __memp_fn(dbmfp), (u_long)bhp->pgno);
+ UNLOCKREGION(dbmp);
+ return (EINVAL);
}
-#endif
+
+ /*
+ * If more than one reference to the page, we're done. Ignore the
+ * discard flags (for now) and leave it at its position in the LRU
+ * chain. The rest gets done at last reference close.
+ */
if (--bhp->ref > 0) {
UNLOCKREGION(dbmp);
return (0);
}
- /* Move the buffer to the head/tail of the LRU chain. */
- SH_TAILQ_REMOVE(&mp->bhq, bhp, q, __bh);
- if (F_ISSET(bhp, BH_DISCARD))
- SH_TAILQ_INSERT_HEAD(&mp->bhq, bhp, q, __bh);
- else
- SH_TAILQ_INSERT_TAIL(&mp->bhq, bhp, q);
-
/*
- * If this buffer is scheduled for writing because of a checkpoint,
- * write it now. If we can't write it, set a flag so that the next
- * time the memp_sync function is called we try writing it there,
- * as the checkpoint application better be able to write all of the
- * files.
+ * If this buffer is scheduled for writing because of a checkpoint, we
+ * need to write it (if we marked it dirty), or update the checkpoint
+ * counters (if we didn't mark it dirty). If we try to write it and
+ * can't, that's not necessarily an error, but set a flag so that the
+ * next time the memp_sync function runs we try writing it there, as
+ * the checkpoint application better be able to write all of the files.
*/
if (F_ISSET(bhp, BH_WRITE))
if (F_ISSET(bhp, BH_DIRTY)) {
@@ -137,12 +133,18 @@ memp_fput(dbmfp, pgaddr, flags)
} else {
F_CLR(bhp, BH_WRITE);
- mfp = R_ADDR(dbmp, bhp->mf_offset);
- --mfp->lsn_cnt;
-
+ --dbmfp->mfp->lsn_cnt;
--mp->lsn_cnt;
}
+ /* Move the buffer to the head/tail of the LRU chain. */
+ SH_TAILQ_REMOVE(&mp->bhq, bhp, q, __bh);
+ if (F_ISSET(bhp, BH_DISCARD))
+ SH_TAILQ_INSERT_HEAD(&mp->bhq, bhp, q, __bh);
+ else
+ SH_TAILQ_INSERT_TAIL(&mp->bhq, bhp, q);
+
+
UNLOCKREGION(dbmp);
return (0);
}