diff options
author | Ulrich Drepper <drepper@redhat.com> | 1998-06-09 15:16:55 +0000 |
---|---|---|
committer | Ulrich Drepper <drepper@redhat.com> | 1998-06-09 15:16:55 +0000 |
commit | bf7997b65c7887d2acda95f5201d818a19d81711 (patch) | |
tree | da3583de3a0b5892f90a4b1eb773a87b554ae37e /db2/mp/mp_fput.c | |
parent | 7646e67e6cc4c738a7b402c60fed39d52db0433b (diff) | |
download | glibc-bf7997b65c7887d2acda95f5201d818a19d81711.zip glibc-bf7997b65c7887d2acda95f5201d818a19d81711.tar.gz glibc-bf7997b65c7887d2acda95f5201d818a19d81711.tar.bz2 |
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.c | 64 |
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); } |