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authorunknown <ram@mysql.r18.ru>2002-10-30 15:57:05 +0400
committerunknown <ram@mysql.r18.ru>2002-10-30 15:57:05 +0400
commit155e78f014de1a2e259ae5119f4621fbb210a784 (patch)
tree6881a3cca88bea0bb9eeffd5aae34be437152786 /bdb/db/db_rec.c
parentb8798d25ab71436bf690ee8ae48285a655c5487e (diff)
downloadmariadb-git-155e78f014de1a2e259ae5119f4621fbb210a784.tar.gz
BDB 4.1.24
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bdb/lock/lock_conflict.c BitKeeper/deleted/.del-log.src~53ac9e7b5cb023f2: Delete: bdb/log/log.src BitKeeper/deleted/.del-log_findckp.c~24287f008916e81f: Delete: bdb/log/log_findckp.c BitKeeper/deleted/.del-log_rec.c~d51711f2cac09297: Delete: bdb/log/log_rec.c BitKeeper/deleted/.del-log_register.c~b40bb4efac75ca15: Delete: bdb/log/log_register.c BitKeeper/deleted/.del-Design~b3d0f179f2767b: Delete: bdb/mp/Design BitKeeper/deleted/.del-os_finit.c~95dbefc6fe79b26c: Delete: bdb/os/os_finit.c BitKeeper/deleted/.del-os_abs.c~df95d1e7db81924: Delete: bdb/os_vxworks/os_abs.c BitKeeper/deleted/.del-os_finit.c~803b484bdb9d0122: Delete: bdb/os_vxworks/os_finit.c BitKeeper/deleted/.del-os_map.c~3a6d7926398b76d3: Delete: bdb/os_vxworks/os_map.c BitKeeper/deleted/.del-os_finit.c~19a227c6d3c78ad: Delete: bdb/os_win32/os_finit.c BitKeeper/deleted/.del-log-corruption.patch~1cf2ecc7c6408d5d: Delete: bdb/patches/log-corruption.patch BitKeeper/deleted/.del-Btree.pm~af6d0c5eaed4a98e: Delete: 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bdb/perl.BerkeleyDB/t/queue.t BitKeeper/deleted/.del-recno.t~d4ddbd3743add63e: Delete: bdb/perl.BerkeleyDB/t/recno.t BitKeeper/deleted/.del-strict.t~6885cdd2ea71ca2d: Delete: bdb/perl.BerkeleyDB/t/strict.t BitKeeper/deleted/.del-subdb.t~aab62a5d5864c603: Delete: bdb/perl.BerkeleyDB/t/subdb.t BitKeeper/deleted/.del-txn.t~65033b8558ae1216: Delete: bdb/perl.BerkeleyDB/t/txn.t BitKeeper/deleted/.del-unknown.t~f3710458682665e1: Delete: bdb/perl.BerkeleyDB/t/unknown.t BitKeeper/deleted/.del-Changes~436f74a5c414c65b: Delete: bdb/perl.DB_File/Changes BitKeeper/deleted/.del-DB_File.pm~ae0951c6c7665a82: Delete: bdb/perl.DB_File/DB_File.pm BitKeeper/deleted/.del-DB_File.xs~89e49a0b5556f1d8: Delete: bdb/perl.DB_File/DB_File.xs BitKeeper/deleted/.del-DB_File_BS~290fad5dbbb87069: Delete: bdb/perl.DB_File/DB_File_BS BitKeeper/deleted/.del-MANIFEST~90ee581572bdd4ac: Delete: bdb/perl.DB_File/MANIFEST BitKeeper/deleted/.del-Makefile.PL~ac0567bb5a377e38: Delete: bdb/perl.DB_File/Makefile.PL BitKeeper/deleted/.del-README~77e924a5a9bae6b3: Delete: bdb/perl.DB_File/README BitKeeper/deleted/.del-config.in~ab4c2792b86a810b: Delete: bdb/perl.DB_File/config.in BitKeeper/deleted/.del-dbinfo~461c43b30fab2cb: Delete: bdb/perl.DB_File/dbinfo BitKeeper/deleted/.del-dynixptx.pl~50dcddfae25d17e9: Delete: bdb/perl.DB_File/hints/dynixptx.pl BitKeeper/deleted/.del-typemap~55cffb3288a9e587: Delete: bdb/perl.DB_File/typemap BitKeeper/deleted/.del-version.c~a4df0e646f8b3975: Delete: bdb/perl.DB_File/version.c BitKeeper/deleted/.del-5.004_01~d6830d0082702af7: Delete: bdb/perl.DB_File/patches/5.004_01 BitKeeper/deleted/.del-5.004_02~78b082dc80c91031: Delete: bdb/perl.DB_File/patches/5.004_02 BitKeeper/deleted/.del-5.004~4411ec2e3c9e008b: Delete: bdb/perl.DB_File/patches/5.004 BitKeeper/deleted/.del-sco.pl~1e795fe14fe4dcfe: Delete: bdb/perl.DB_File/hints/sco.pl BitKeeper/deleted/.del-5.004_03~33f274648b160d95: Delete: bdb/perl.DB_File/patches/5.004_03 BitKeeper/deleted/.del-5.004_04~8f3d1b3cf18bb20a: Delete: bdb/perl.DB_File/patches/5.004_04 BitKeeper/deleted/.del-5.004_05~9c0f02e7331e142: Delete: bdb/perl.DB_File/patches/5.004_05 BitKeeper/deleted/.del-5.005~c2108cb2e3c8d951: Delete: bdb/perl.DB_File/patches/5.005 BitKeeper/deleted/.del-5.005_01~3b45e9673afc4cfa: Delete: bdb/perl.DB_File/patches/5.005_01 BitKeeper/deleted/.del-5.005_02~9fe5766bb02a4522: Delete: bdb/perl.DB_File/patches/5.005_02 BitKeeper/deleted/.del-5.005_03~ffa1c38c19ae72ea: Delete: bdb/perl.DB_File/patches/5.005_03 BitKeeper/deleted/.del-5.6.0~373be3a5ce47be85: Delete: bdb/perl.DB_File/patches/5.6.0 BitKeeper/deleted/.del-db-btree.t~3231595a1c241eb3: Delete: bdb/perl.DB_File/t/db-btree.t BitKeeper/deleted/.del-db-hash.t~7c4ad0c795c7fad2: Delete: bdb/perl.DB_File/t/db-hash.t BitKeeper/deleted/.del-db-recno.t~6c2d3d80b9ba4a50: Delete: bdb/perl.DB_File/t/db-recno.t BitKeeper/deleted/.del-db_server.sed~cdb00ebcd48a64e2: Delete: bdb/rpc_server/db_server.sed BitKeeper/deleted/.del-db_server_proc.c~d46c8f409c3747f4: Delete: bdb/rpc_server/db_server_proc.c BitKeeper/deleted/.del-db_server_svc.sed~3f5e59f334fa4607: Delete: bdb/rpc_server/db_server_svc.sed BitKeeper/deleted/.del-db_server_util.c~a809f3a4629acda: Delete: bdb/rpc_server/db_server_util.c BitKeeper/deleted/.del-log.tcl~ff1b41f1355b97d7: Delete: bdb/test/log.tcl BitKeeper/deleted/.del-mpool.tcl~b0df4dc1b04db26c: Delete: bdb/test/mpool.tcl BitKeeper/deleted/.del-mutex.tcl~52fd5c73a150565: Delete: bdb/test/mutex.tcl BitKeeper/deleted/.del-txn.tcl~c4ff071550b5446e: Delete: bdb/test/txn.tcl BitKeeper/deleted/.del-README~e800a12a5392010a: Delete: bdb/test/upgrade/README BitKeeper/deleted/.del-pack-2.6.6.pl~89d5076d758d3e98: Delete: bdb/test/upgrade/generate-2.X/pack-2.6.6.pl BitKeeper/deleted/.del-test-2.6.patch~4a52dc83d447547b: Delete: bdb/test/upgrade/generate-2.X/test-2.6.patch
Diffstat (limited to 'bdb/db/db_rec.c')
-rw-r--r--bdb/db/db_rec.c456
1 files changed, 412 insertions, 44 deletions
diff --git a/bdb/db/db_rec.c b/bdb/db/db_rec.c
index 998d074290d..303ab2fe1d4 100644
--- a/bdb/db/db_rec.c
+++ b/bdb/db/db_rec.c
@@ -1,14 +1,14 @@
/*-
* See the file LICENSE for redistribution information.
*
- * Copyright (c) 1996, 1997, 1998, 1999, 2000
+ * Copyright (c) 1996-2002
* Sleepycat Software. All rights reserved.
*/
#include "db_config.h"
#ifndef lint
-static const char revid[] = "$Id: db_rec.c,v 11.10 2000/08/03 15:32:19 ubell Exp $";
+static const char revid[] = "$Id: db_rec.c,v 11.35 2002/08/08 03:57:49 bostic Exp $";
#endif /* not lint */
#ifndef NO_SYSTEM_INCLUDES
@@ -18,9 +18,9 @@ static const char revid[] = "$Id: db_rec.c,v 11.10 2000/08/03 15:32:19 ubell Exp
#endif
#include "db_int.h"
-#include "db_page.h"
-#include "log.h"
-#include "hash.h"
+#include "dbinc/db_page.h"
+#include "dbinc/log.h"
+#include "dbinc/hash.h"
/*
* PUBLIC: int __db_addrem_recover
@@ -45,11 +45,12 @@ __db_addrem_recover(dbenv, dbtp, lsnp, op, info)
u_int32_t change;
int cmp_n, cmp_p, ret;
+ pagep = NULL;
COMPQUIET(info, NULL);
REC_PRINT(__db_addrem_print);
REC_INTRO(__db_addrem_read, 1);
- if ((ret = memp_fget(mpf, &argp->pgno, 0, &pagep)) != 0) {
+ if ((ret = mpf->get(mpf, &argp->pgno, 0, &pagep)) != 0) {
if (DB_UNDO(op)) {
/*
* We are undoing and the page doesn't exist. That
@@ -59,7 +60,7 @@ __db_addrem_recover(dbenv, dbtp, lsnp, op, info)
*/
goto done;
} else
- if ((ret = memp_fget(mpf,
+ if ((ret = mpf->get(mpf,
&argp->pgno, DB_MPOOL_CREATE, &pagep)) != 0)
goto out;
}
@@ -95,13 +96,16 @@ __db_addrem_recover(dbenv, dbtp, lsnp, op, info)
LSN(pagep) = argp->pagelsn;
}
- if ((ret = memp_fput(mpf, pagep, change)) != 0)
+ if ((ret = mpf->put(mpf, pagep, change)) != 0)
goto out;
+ pagep = NULL;
done: *lsnp = argp->prev_lsn;
ret = 0;
-out: REC_CLOSE;
+out: if (pagep != NULL)
+ (void)mpf->put(mpf, pagep, 0);
+ REC_CLOSE;
}
/*
@@ -124,11 +128,12 @@ __db_big_recover(dbenv, dbtp, lsnp, op, info)
u_int32_t change;
int cmp_n, cmp_p, ret;
+ pagep = NULL;
COMPQUIET(info, NULL);
REC_PRINT(__db_big_print);
REC_INTRO(__db_big_read, 1);
- if ((ret = memp_fget(mpf, &argp->pgno, 0, &pagep)) != 0) {
+ if ((ret = mpf->get(mpf, &argp->pgno, 0, &pagep)) != 0) {
if (DB_UNDO(op)) {
/*
* We are undoing and the page doesn't exist. That
@@ -139,7 +144,7 @@ __db_big_recover(dbenv, dbtp, lsnp, op, info)
ret = 0;
goto ppage;
} else
- if ((ret = memp_fget(mpf,
+ if ((ret = mpf->get(mpf,
&argp->pgno, DB_MPOOL_CREATE, &pagep)) != 0)
goto out;
}
@@ -161,7 +166,7 @@ __db_big_recover(dbenv, dbtp, lsnp, op, info)
argp->next_pgno, 0, P_OVERFLOW);
OV_LEN(pagep) = argp->dbt.size;
OV_REF(pagep) = 1;
- memcpy((u_int8_t *)pagep + P_OVERHEAD, argp->dbt.data,
+ memcpy((u_int8_t *)pagep + P_OVERHEAD(file_dbp), argp->dbt.data,
argp->dbt.size);
PREV_PGNO(pagep) = argp->prev_pgno;
change = DB_MPOOL_DIRTY;
@@ -177,13 +182,21 @@ __db_big_recover(dbenv, dbtp, lsnp, op, info)
if (change)
LSN(pagep) = DB_REDO(op) ? *lsnp : argp->pagelsn;
- if ((ret = memp_fput(mpf, pagep, change)) != 0)
+ if ((ret = mpf->put(mpf, pagep, change)) != 0)
goto out;
+ pagep = NULL;
+
+ /*
+ * We only delete a whole chain of overflow.
+ * Each page is handled individually
+ */
+ if (argp->opcode == DB_REM_BIG)
+ goto done;
/* Now check the previous page. */
ppage: if (argp->prev_pgno != PGNO_INVALID) {
change = 0;
- if ((ret = memp_fget(mpf, &argp->prev_pgno, 0, &pagep)) != 0) {
+ if ((ret = mpf->get(mpf, &argp->prev_pgno, 0, &pagep)) != 0) {
if (DB_UNDO(op)) {
/*
* We are undoing and the page doesn't exist.
@@ -195,7 +208,7 @@ ppage: if (argp->prev_pgno != PGNO_INVALID) {
ret = 0;
goto npage;
} else
- if ((ret = memp_fget(mpf, &argp->prev_pgno,
+ if ((ret = mpf->get(mpf, &argp->prev_pgno,
DB_MPOOL_CREATE, &pagep)) != 0)
goto out;
}
@@ -204,28 +217,27 @@ ppage: if (argp->prev_pgno != PGNO_INVALID) {
cmp_p = log_compare(&LSN(pagep), &argp->prevlsn);
CHECK_LSN(op, cmp_p, &LSN(pagep), &argp->prevlsn);
- if ((cmp_p == 0 && DB_REDO(op) && argp->opcode == DB_ADD_BIG) ||
- (cmp_n == 0 && DB_UNDO(op) && argp->opcode == DB_REM_BIG)) {
+ if (cmp_p == 0 && DB_REDO(op) && argp->opcode == DB_ADD_BIG) {
/* Redo add, undo delete. */
NEXT_PGNO(pagep) = argp->pgno;
change = DB_MPOOL_DIRTY;
- } else if ((cmp_n == 0 &&
- DB_UNDO(op) && argp->opcode == DB_ADD_BIG) ||
- (cmp_p == 0 && DB_REDO(op) && argp->opcode == DB_REM_BIG)) {
+ } else if (cmp_n == 0 &&
+ DB_UNDO(op) && argp->opcode == DB_ADD_BIG) {
/* Redo delete, undo add. */
NEXT_PGNO(pagep) = argp->next_pgno;
change = DB_MPOOL_DIRTY;
}
if (change)
LSN(pagep) = DB_REDO(op) ? *lsnp : argp->prevlsn;
- if ((ret = memp_fput(mpf, pagep, change)) != 0)
+ if ((ret = mpf->put(mpf, pagep, change)) != 0)
goto out;
}
+ pagep = NULL;
/* Now check the next page. Can only be set on a delete. */
npage: if (argp->next_pgno != PGNO_INVALID) {
change = 0;
- if ((ret = memp_fget(mpf, &argp->next_pgno, 0, &pagep)) != 0) {
+ if ((ret = mpf->get(mpf, &argp->next_pgno, 0, &pagep)) != 0) {
if (DB_UNDO(op)) {
/*
* We are undoing and the page doesn't exist.
@@ -235,7 +247,7 @@ npage: if (argp->next_pgno != PGNO_INVALID) {
*/
goto done;
} else
- if ((ret = memp_fget(mpf, &argp->next_pgno,
+ if ((ret = mpf->get(mpf, &argp->next_pgno,
DB_MPOOL_CREATE, &pagep)) != 0)
goto out;
}
@@ -252,21 +264,25 @@ npage: if (argp->next_pgno != PGNO_INVALID) {
}
if (change)
LSN(pagep) = DB_REDO(op) ? *lsnp : argp->nextlsn;
- if ((ret = memp_fput(mpf, pagep, change)) != 0)
+ if ((ret = mpf->put(mpf, pagep, change)) != 0)
goto out;
}
+ pagep = NULL;
done: *lsnp = argp->prev_lsn;
ret = 0;
-out: REC_CLOSE;
+out: if (pagep != NULL)
+ (void)mpf->put(mpf, pagep, 0);
+ REC_CLOSE;
}
/*
* __db_ovref_recover --
* Recovery function for __db_ovref().
*
- * PUBLIC: int __db_ovref_recover __P((DB_ENV *, DBT *, DB_LSN *, db_recops, void *));
+ * PUBLIC: int __db_ovref_recover
+ * PUBLIC: __P((DB_ENV *, DBT *, DB_LSN *, db_recops, void *));
*/
int
__db_ovref_recover(dbenv, dbtp, lsnp, op, info)
@@ -283,14 +299,15 @@ __db_ovref_recover(dbenv, dbtp, lsnp, op, info)
PAGE *pagep;
int cmp, modified, ret;
+ pagep = NULL;
COMPQUIET(info, NULL);
REC_PRINT(__db_ovref_print);
REC_INTRO(__db_ovref_read, 1);
- if ((ret = memp_fget(mpf, &argp->pgno, 0, &pagep)) != 0) {
+ if ((ret = mpf->get(mpf, &argp->pgno, 0, &pagep)) != 0) {
if (DB_UNDO(op))
goto done;
- (void)__db_pgerr(file_dbp, argp->pgno);
+ __db_pgerr(file_dbp, argp->pgno, ret);
goto out;
}
@@ -310,13 +327,16 @@ __db_ovref_recover(dbenv, dbtp, lsnp, op, info)
pagep->lsn = argp->lsn;
modified = 1;
}
- if ((ret = memp_fput(mpf, pagep, modified ? DB_MPOOL_DIRTY : 0)) != 0)
+ if ((ret = mpf->put(mpf, pagep, modified ? DB_MPOOL_DIRTY : 0)) != 0)
goto out;
+ pagep = NULL;
done: *lsnp = argp->prev_lsn;
ret = 0;
-out: REC_CLOSE;
+out: if (pagep != NULL)
+ (void)mpf->put(mpf, pagep, 0);
+ REC_CLOSE;
}
/*
@@ -341,6 +361,7 @@ __db_relink_recover(dbenv, dbtp, lsnp, op, info)
PAGE *pagep;
int cmp_n, cmp_p, modified, ret;
+ pagep = NULL;
COMPQUIET(info, NULL);
REC_PRINT(__db_relink_print);
REC_INTRO(__db_relink_read, 1);
@@ -351,9 +372,9 @@ __db_relink_recover(dbenv, dbtp, lsnp, op, info)
* the current page is the result of a split and is being recovered
* elsewhere, so all we need do is recover the next page.
*/
- if ((ret = memp_fget(mpf, &argp->pgno, 0, &pagep)) != 0) {
+ if ((ret = mpf->get(mpf, &argp->pgno, 0, &pagep)) != 0) {
if (DB_REDO(op)) {
- (void)__db_pgerr(file_dbp, argp->pgno);
+ __db_pgerr(file_dbp, argp->pgno, ret);
goto out;
}
goto next2;
@@ -376,12 +397,13 @@ __db_relink_recover(dbenv, dbtp, lsnp, op, info)
pagep->lsn = argp->lsn;
modified = 1;
}
-next1: if ((ret = memp_fput(mpf, pagep, modified ? DB_MPOOL_DIRTY : 0)) != 0)
+next1: if ((ret = mpf->put(mpf, pagep, modified ? DB_MPOOL_DIRTY : 0)) != 0)
goto out;
+ pagep = NULL;
-next2: if ((ret = memp_fget(mpf, &argp->next, 0, &pagep)) != 0) {
+next2: if ((ret = mpf->get(mpf, &argp->next, 0, &pagep)) != 0) {
if (DB_REDO(op)) {
- (void)__db_pgerr(file_dbp, argp->next);
+ __db_pgerr(file_dbp, argp->next, ret);
goto out;
}
goto prev;
@@ -409,14 +431,15 @@ next2: if ((ret = memp_fget(mpf, &argp->next, 0, &pagep)) != 0) {
else
pagep->lsn = *lsnp;
}
- if ((ret = memp_fput(mpf, pagep, modified ? DB_MPOOL_DIRTY : 0)) != 0)
+ if ((ret = mpf->put(mpf, pagep, modified ? DB_MPOOL_DIRTY : 0)) != 0)
goto out;
+ pagep = NULL;
if (argp->opcode == DB_ADD_PAGE)
goto done;
-prev: if ((ret = memp_fget(mpf, &argp->prev, 0, &pagep)) != 0) {
+prev: if ((ret = mpf->get(mpf, &argp->prev, 0, &pagep)) != 0) {
if (DB_REDO(op)) {
- (void)__db_pgerr(file_dbp, argp->prev);
+ __db_pgerr(file_dbp, argp->prev, ret);
goto out;
}
goto done;
@@ -441,13 +464,16 @@ prev: if ((ret = memp_fget(mpf, &argp->prev, 0, &pagep)) != 0) {
else
pagep->lsn = *lsnp;
}
- if ((ret = memp_fput(mpf, pagep, modified ? DB_MPOOL_DIRTY : 0)) != 0)
+ if ((ret = mpf->put(mpf, pagep, modified ? DB_MPOOL_DIRTY : 0)) != 0)
goto out;
+ pagep = NULL;
done: *lsnp = argp->prev_lsn;
ret = 0;
-out: REC_CLOSE;
+out: if (pagep != NULL)
+ (void)mpf->put(mpf, pagep, 0);
+ REC_CLOSE;
}
/*
@@ -468,8 +494,8 @@ __db_debug_recover(dbenv, dbtp, lsnp, op, info)
__db_debug_args *argp;
int ret;
- COMPQUIET(op, 0);
COMPQUIET(dbenv, NULL);
+ COMPQUIET(op, DB_TXN_ABORT);
COMPQUIET(info, NULL);
REC_PRINT(__db_debug_print);
@@ -504,11 +530,12 @@ __db_noop_recover(dbenv, dbtp, lsnp, op, info)
u_int32_t change;
int cmp_n, cmp_p, ret;
+ pagep = NULL;
COMPQUIET(info, NULL);
REC_PRINT(__db_noop_print);
REC_INTRO(__db_noop_read, 0);
- if ((ret = memp_fget(mpf, &argp->pgno, 0, &pagep)) != 0)
+ if ((ret = mpf->get(mpf, &argp->pgno, 0, &pagep)) != 0)
goto out;
cmp_n = log_compare(lsnp, &LSN(pagep));
@@ -522,8 +549,349 @@ __db_noop_recover(dbenv, dbtp, lsnp, op, info)
LSN(pagep) = argp->prevlsn;
change = DB_MPOOL_DIRTY;
}
- ret = memp_fput(mpf, pagep, change);
+ ret = mpf->put(mpf, pagep, change);
+ pagep = NULL;
done: *lsnp = argp->prev_lsn;
-out: REC_CLOSE;
+out: if (pagep != NULL)
+ (void)mpf->put(mpf, pagep, 0);
+ REC_CLOSE;
+}
+
+/*
+ * __db_pg_alloc_recover --
+ * Recovery function for pg_alloc.
+ *
+ * PUBLIC: int __db_pg_alloc_recover
+ * PUBLIC: __P((DB_ENV *, DBT *, DB_LSN *, db_recops, void *));
+ */
+int
+__db_pg_alloc_recover(dbenv, dbtp, lsnp, op, info)
+ DB_ENV *dbenv;
+ DBT *dbtp;
+ DB_LSN *lsnp;
+ db_recops op;
+ void *info;
+{
+ __db_pg_alloc_args *argp;
+ DB *file_dbp;
+ DBC *dbc;
+ DBMETA *meta;
+ DB_MPOOLFILE *mpf;
+ PAGE *pagep;
+ db_pgno_t pgno;
+ int cmp_n, cmp_p, created, level, modified, ret;
+
+ meta = NULL;
+ pagep = NULL;
+ REC_PRINT(__db_pg_alloc_print);
+ REC_INTRO(__db_pg_alloc_read, 0);
+
+ /*
+ * Fix up the allocated page. If we're redoing the operation, we have
+ * to get the page (creating it if it doesn't exist), and update its
+ * LSN. If we're undoing the operation, we have to reset the page's
+ * LSN and put it on the free list.
+ *
+ * Fix up the metadata page. If we're redoing the operation, we have
+ * to get the metadata page and update its LSN and its free pointer.
+ * If we're undoing the operation and the page was ever created, we put
+ * it on the freelist.
+ */
+ pgno = PGNO_BASE_MD;
+ if ((ret = mpf->get(mpf, &pgno, 0, &meta)) != 0) {
+ /* The metadata page must always exist on redo. */
+ if (DB_REDO(op)) {
+ __db_pgerr(file_dbp, pgno, ret);
+ goto out;
+ } else
+ goto done;
+ }
+ created = modified = 0;
+ if ((ret = mpf->get(mpf, &argp->pgno, 0, &pagep)) != 0) {
+ /*
+ * We have to be able to identify if a page was newly
+ * created so we can recover it properly. We cannot simply
+ * look for an empty header, because hash uses a pgin
+ * function that will set the header. Instead, we explicitly
+ * try for the page without CREATE and if that fails, then
+ * create it.
+ */
+ if ((ret =
+ mpf->get(mpf, &argp->pgno, DB_MPOOL_CREATE, &pagep)) != 0) {
+ __db_pgerr(file_dbp, argp->pgno, ret);
+ goto out;
+ }
+ created = modified = 1;
+ }
+
+ /* Fix up the allocated page. */
+ cmp_n = log_compare(lsnp, &LSN(pagep));
+ cmp_p = log_compare(&LSN(pagep), &argp->page_lsn);
+
+ /*
+ * If an inital allocation is aborted and then reallocated
+ * during an archival restore the log record will have
+ * an LSN for the page but the page will be empty.
+ */
+ if (IS_ZERO_LSN(LSN(pagep)))
+ cmp_p = 0;
+ CHECK_LSN(op, cmp_p, &LSN(pagep), &argp->page_lsn);
+ /*
+ * If we we rolled back this allocation previously during an
+ * archive restore, the page may have the LSN of the meta page
+ * at the point of the roll back. This will be no more
+ * than the LSN of the metadata page at the time of this allocation.
+ * Another special case we have to handle is if we ended up with a
+ * page of all 0's which can happen if we abort between allocating a
+ * page in mpool and initializing it. In that case, even if we're
+ * undoing, we need to re-initialize the page.
+ */
+ if (DB_REDO(op) &&
+ (cmp_p == 0 ||
+ (IS_ZERO_LSN(argp->page_lsn) &&
+ log_compare(&LSN(pagep), &argp->meta_lsn) <= 0))) {
+ /* Need to redo update described. */
+ switch (argp->ptype) {
+ case P_LBTREE:
+ case P_LRECNO:
+ case P_LDUP:
+ level = LEAFLEVEL;
+ break;
+ default:
+ level = 0;
+ break;
+ }
+ P_INIT(pagep, file_dbp->pgsize,
+ argp->pgno, PGNO_INVALID, PGNO_INVALID, level, argp->ptype);
+
+ pagep->lsn = *lsnp;
+ modified = 1;
+ } else if (DB_UNDO(op) && (cmp_n == 0 || created)) {
+ /*
+ * This is where we handle the case of a 0'd page (pagep->pgno
+ * is equal to PGNO_INVALID).
+ * Undo the allocation, reinitialize the page and
+ * link its next pointer to the free list.
+ */
+ P_INIT(pagep, file_dbp->pgsize,
+ argp->pgno, PGNO_INVALID, argp->next, 0, P_INVALID);
+
+ pagep->lsn = argp->page_lsn;
+ modified = 1;
+ }
+
+ /*
+ * If the page was newly created, put it on the limbo list.
+ */
+ if (IS_ZERO_LSN(LSN(pagep)) &&
+ IS_ZERO_LSN(argp->page_lsn) && DB_UNDO(op)) {
+ /* Put the page in limbo.*/
+ if ((ret = __db_add_limbo(dbenv,
+ info, argp->fileid, argp->pgno, 1)) != 0)
+ goto out;
+ }
+
+ if ((ret = mpf->put(mpf, pagep, modified ? DB_MPOOL_DIRTY : 0)) != 0)
+ goto out;
+ pagep = NULL;
+
+ /* Fix up the metadata page. */
+ modified = 0;
+ cmp_n = log_compare(lsnp, &LSN(meta));
+ cmp_p = log_compare(&LSN(meta), &argp->meta_lsn);
+ CHECK_LSN(op, cmp_p, &LSN(meta), &argp->meta_lsn);
+ if (cmp_p == 0 && DB_REDO(op)) {
+ /* Need to redo update described. */
+ LSN(meta) = *lsnp;
+ meta->free = argp->next;
+ modified = 1;
+ } else if (cmp_n == 0 && DB_UNDO(op)) {
+ /* Need to undo update described. */
+ LSN(meta) = argp->meta_lsn;
+
+ /*
+ * If the page has a zero LSN then its newly created
+ * and will go into limbo rather than directly on the
+ * free list.
+ */
+ if (!IS_ZERO_LSN(argp->page_lsn))
+ meta->free = argp->pgno;
+ modified = 1;
+ }
+ if ((ret = mpf->put(mpf, meta, modified ? DB_MPOOL_DIRTY : 0)) != 0)
+ goto out;
+ meta = NULL;
+ /*
+ * This could be the metapage from a subdb which is read from disk
+ * to recover its creation.
+ */
+ if (F_ISSET(file_dbp, DB_AM_SUBDB))
+ switch (argp->type) {
+ case P_BTREEMETA:
+ case P_HASHMETA:
+ case P_QAMMETA:
+ file_dbp->sync(file_dbp, 0);
+ break;
+ }
+
+done: *lsnp = argp->prev_lsn;
+ ret = 0;
+
+out: if (pagep != NULL)
+ (void)mpf->put(mpf, pagep, 0);
+ if (meta != NULL)
+ (void)mpf->put(mpf, meta, 0);
+ if (ret == ENOENT && op == DB_TXN_BACKWARD_ALLOC)
+ ret = 0;
+ REC_CLOSE;
+}
+
+/*
+ * __db_pg_free_recover --
+ * Recovery function for pg_free.
+ *
+ * PUBLIC: int __db_pg_free_recover
+ * PUBLIC: __P((DB_ENV *, DBT *, DB_LSN *, db_recops, void *));
+ */
+int
+__db_pg_free_recover(dbenv, dbtp, lsnp, op, info)
+ DB_ENV *dbenv;
+ DBT *dbtp;
+ DB_LSN *lsnp;
+ db_recops op;
+ void *info;
+{
+ __db_pg_free_args *argp;
+ DB *file_dbp;
+ DBC *dbc;
+ DBMETA *meta;
+ DB_LSN copy_lsn;
+ DB_MPOOLFILE *mpf;
+ PAGE *pagep;
+ db_pgno_t pgno;
+ int cmp_n, cmp_p, modified, ret;
+
+ COMPQUIET(info, NULL);
+ meta = NULL;
+ pagep = NULL;
+ REC_PRINT(__db_pg_free_print);
+ REC_INTRO(__db_pg_free_read, 1);
+
+ /*
+ * Fix up the freed page. If we're redoing the operation we get the
+ * page and explicitly discard its contents, then update its LSN. If
+ * we're undoing the operation, we get the page and restore its header.
+ * Create the page if necessary, we may be freeing an aborted
+ * create.
+ */
+ if ((ret = mpf->get(mpf, &argp->pgno, DB_MPOOL_CREATE, &pagep)) != 0)
+ goto out;
+ modified = 0;
+ (void)__ua_memcpy(&copy_lsn, &LSN(argp->header.data), sizeof(DB_LSN));
+ cmp_n = log_compare(lsnp, &LSN(pagep));
+ cmp_p = log_compare(&LSN(pagep), &copy_lsn);
+ CHECK_LSN(op, cmp_p, &LSN(pagep), &copy_lsn);
+ if (DB_REDO(op) &&
+ (cmp_p == 0 ||
+ (IS_ZERO_LSN(copy_lsn) &&
+ log_compare(&LSN(pagep), &argp->meta_lsn) <= 0))) {
+ /* Need to redo update described. */
+ P_INIT(pagep, file_dbp->pgsize,
+ argp->pgno, PGNO_INVALID, argp->next, 0, P_INVALID);
+ pagep->lsn = *lsnp;
+
+ modified = 1;
+ } else if (cmp_n == 0 && DB_UNDO(op)) {
+ /* Need to undo update described. */
+ memcpy(pagep, argp->header.data, argp->header.size);
+
+ modified = 1;
+ }
+ if ((ret = mpf->put(mpf, pagep, modified ? DB_MPOOL_DIRTY : 0)) != 0)
+ goto out;
+ pagep = NULL;
+
+ /*
+ * Fix up the metadata page. If we're redoing or undoing the operation
+ * we get the page and update its LSN and free pointer.
+ */
+ pgno = PGNO_BASE_MD;
+ if ((ret = mpf->get(mpf, &pgno, 0, &meta)) != 0) {
+ /* The metadata page must always exist. */
+ __db_pgerr(file_dbp, pgno, ret);
+ goto out;
+ }
+
+ modified = 0;
+ cmp_n = log_compare(lsnp, &LSN(meta));
+ cmp_p = log_compare(&LSN(meta), &argp->meta_lsn);
+ CHECK_LSN(op, cmp_p, &LSN(meta), &argp->meta_lsn);
+ if (cmp_p == 0 && DB_REDO(op)) {
+ /* Need to redo the deallocation. */
+ meta->free = argp->pgno;
+ LSN(meta) = *lsnp;
+ modified = 1;
+ } else if (cmp_n == 0 && DB_UNDO(op)) {
+ /* Need to undo the deallocation. */
+ meta->free = argp->next;
+ LSN(meta) = argp->meta_lsn;
+ modified = 1;
+ }
+ if ((ret = mpf->put(mpf, meta, modified ? DB_MPOOL_DIRTY : 0)) != 0)
+ goto out;
+ meta = NULL;
+
+done: *lsnp = argp->prev_lsn;
+ ret = 0;
+
+out: if (pagep != NULL)
+ (void)mpf->put(mpf, pagep, 0);
+ if (meta != NULL)
+ (void)mpf->put(mpf, meta, 0);
+ REC_CLOSE;
+}
+
+/*
+ * __db_cksum_recover --
+ * Recovery function for checksum failure log record.
+ *
+ * PUBLIC: int __db_cksum_recover __P((DB_ENV *,
+ * PUBLIC: DBT *, DB_LSN *, db_recops, void *));
+ */
+int
+__db_cksum_recover(dbenv, dbtp, lsnp, op, info)
+ DB_ENV *dbenv;
+ DBT *dbtp;
+ DB_LSN *lsnp;
+ db_recops op;
+ void *info;
+{
+ __db_cksum_args *argp;
+
+ int ret;
+
+ COMPQUIET(info, NULL);
+ COMPQUIET(lsnp, NULL);
+ COMPQUIET(op, DB_TXN_ABORT);
+
+ REC_PRINT(__db_cksum_print);
+
+ if ((ret = __db_cksum_read(dbenv, dbtp->data, &argp)) != 0)
+ return (ret);
+
+ /*
+ * We had a checksum failure -- the only option is to run catastrophic
+ * recovery.
+ */
+ if (F_ISSET(dbenv, DB_ENV_FATAL))
+ ret = 0;
+ else {
+ __db_err(dbenv,
+ "Checksum failure requires catastrophic recovery");
+ ret = __db_panic(dbenv, DB_RUNRECOVERY);
+ }
+
+ __os_free(dbenv, argp);
+ return (ret);
}