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* db2/Makefile (distribute): Remove files which do not exist
	anymore.
This commit is contained in:
Ulrich Drepper
1999-06-13 13:36:34 +00:00
parent fc37035216
commit ec239360d1
141 changed files with 12490 additions and 9987 deletions
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67
db2/common/db_apprec.c
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@ -11,7 +11,7 @@
static const char copyright[] =
"@(#) Copyright (c) 1996, 1997, 1998\n\
Sleepycat Software Inc. All rights reserved.\n";
static const char sccsid[] = "@(#)db_apprec.c 10.30 (Sleepycat) 5/3/98";
static const char sccsid[] = "@(#)db_apprec.c 10.33 (Sleepycat) 10/5/98";
#endif
#ifndef NO_SYSTEM_INCLUDES
@ -44,7 +44,8 @@ __db_apprec(dbenv, flags)
{
DBT data;
DB_LOG *lp;
DB_LSN ckp_lsn, first_lsn, lsn;
DB_LSN ckp_lsn, first_lsn, lsn, open_lsn;
__txn_ckp_args *ckp_args;
time_t now;
u_int32_t is_thread;
int ret;
@ -65,10 +66,16 @@ __db_apprec(dbenv, flags)
/*
* Recovery is done in three passes:
* Pass #0:
* We need to find the position from which we will open files
* We need to open files beginning with the last to next
* checkpoint because we might have crashed after writing the
* last checkpoint record, but before having written out all
* the open file information.
* Pass #1:
* Read forward through the log from the last checkpoint to the
* end of the log, opening and closing files so that at the end
* of the log we have the "current" set of files open.
* Read forward through the log from the second to last checkpoint
* opening and closing files so that at the end of the log we have
* the "current" set of files open.
* Pass #2:
* Read backward through the log undoing any uncompleted TXNs.
* If doing catastrophic recovery, we read to the beginning of
@ -84,33 +91,50 @@ __db_apprec(dbenv, flags)
*/
/*
* Find the last checkpoint in the log. This is the point from which
* we want to begin pass #1 (the TXN_OPENFILES pass).
* Find the second to last checkpoint in the log. This is the point
* from which we want to begin pass #1 (the TXN_OPENFILES pass).
*/
memset(&data, 0, sizeof(data));
ckp_args = NULL;
if ((ret = log_get(lp, &ckp_lsn, &data, DB_CHECKPOINT)) != 0) {
/*
* If we don't find a checkpoint, start from the beginning.
* If that fails, we're done. Note, we do not require that
* there be log records if we're performing recovery.
*/
if ((ret = log_get(lp, &ckp_lsn, &data, DB_FIRST)) != 0) {
first: if ((ret = log_get(lp, &ckp_lsn, &data, DB_FIRST)) != 0) {
if (ret == DB_NOTFOUND)
ret = 0;
else
__db_err(dbenv, "First log record not found");
goto out;
}
}
open_lsn = ckp_lsn;
} else if ((ret = __txn_ckp_read(data.data, &ckp_args)) != 0) {
__db_err(dbenv, "Invalid checkpoint record at [%ld][%ld]\n",
(u_long)ckp_lsn.file, (u_long)ckp_lsn.offset);
goto out;
} else if (IS_ZERO_LSN(ckp_args->last_ckp) ||
(ret = log_get(lp, &ckp_args->last_ckp, &data, DB_SET)) != 0)
goto first;
else
open_lsn = ckp_args->last_ckp;
/*
* Now, ckp_lsn is either the lsn of the last checkpoint or the lsn
* of the first record in the log. Begin the TXN_OPENFILES pass from
* that lsn, and proceed to the end of the log.
* of the first record in the log. Open_lsn is the second to last
* checkpoint or the beinning of the log; begin the TXN_OPENFILES
* pass from that lsn, and proceed to the end of the log.
*/
lsn = ckp_lsn;
lsn = open_lsn;
for (;;) {
ret = __db_dispatch(lp, &data, &lsn, TXN_OPENFILES, txninfo);
if (dbenv->tx_recover != NULL)
ret = dbenv->tx_recover(lp,
&data, &lsn, TXN_OPENFILES, txninfo);
else
ret = __db_dispatch(lp,
&data, &lsn, TXN_OPENFILES, txninfo);
if (ret != 0 && ret != DB_TXN_CKP)
goto msgerr;
if ((ret = log_get(lp, &lsn, &data, DB_NEXT)) != 0) {
@ -148,8 +172,12 @@ __db_apprec(dbenv, flags)
for (ret = log_get(lp, &lsn, &data, DB_LAST);
ret == 0 && log_compare(&lsn, &first_lsn) > 0;
ret = log_get(lp, &lsn, &data, DB_PREV)) {
ret = __db_dispatch(lp,
&data, &lsn, TXN_BACKWARD_ROLL, txninfo);
if (dbenv->tx_recover != NULL)
ret = dbenv->tx_recover(lp,
&data, &lsn, TXN_BACKWARD_ROLL, txninfo);
else
ret = __db_dispatch(lp,
&data, &lsn, TXN_BACKWARD_ROLL, txninfo);
if (ret != 0) {
if (ret != DB_TXN_CKP)
goto msgerr;
@ -165,7 +193,12 @@ __db_apprec(dbenv, flags)
*/
for (ret = log_get(lp, &lsn, &data, DB_NEXT);
ret == 0; ret = log_get(lp, &lsn, &data, DB_NEXT)) {
ret = __db_dispatch(lp, &data, &lsn, TXN_FORWARD_ROLL, txninfo);
if (dbenv->tx_recover != NULL)
ret = dbenv->tx_recover(lp,
&data, &lsn, TXN_FORWARD_ROLL, txninfo);
else
ret = __db_dispatch(lp,
&data, &lsn, TXN_FORWARD_ROLL, txninfo);
if (ret != 0) {
if (ret != DB_TXN_CKP)
goto msgerr;
@ -207,6 +240,8 @@ msgerr: __db_err(dbenv, "Recovery function for LSN %lu %lu failed",
out: F_SET(lp, is_thread);
__db_txnlist_end(txninfo);
if (ckp_args != NULL)
__os_free(ckp_args, sizeof(*ckp_args));
return (ret);
}