#include "db_config.h"
#ifndef lint
static const char revid[] = "$Id: qam_rec.c,v 1.2 2004/03/30 01:23:55 jtownsen Exp $";
#endif
#ifndef NO_SYSTEM_INCLUDES
#include <sys/types.h>
#include <string.h>
#endif
#include "db_int.h"
#include "dbinc/db_page.h"
#include "dbinc/db_shash.h"
#include "dbinc/db_am.h"
#include "dbinc/lock.h"
#include "dbinc/log.h"
#include "dbinc/mp.h"
#include "dbinc/qam.h"
int
__qam_incfirst_recover(dbenv, dbtp, lsnp, op, info)
DB_ENV *dbenv;
DBT *dbtp;
DB_LSN *lsnp;
db_recops op;
void *info;
{
__qam_incfirst_args *argp;
DB *file_dbp;
DBC *dbc;
DB_LOCK lock;
DB_LSN trunc_lsn;
DB_MPOOLFILE *mpf;
QMETA *meta;
QUEUE_CURSOR *cp;
db_pgno_t metapg;
int exact, modified, ret, rec_ext;
REC_PRINT(__qam_incfirst_print);
REC_INTRO(__qam_incfirst_read, 1);
metapg = ((QUEUE *)file_dbp->q_internal)->q_meta;
if ((ret = __db_lget(dbc,
LCK_ROLLBACK, metapg, DB_LOCK_WRITE, 0, &lock)) != 0)
goto done;
if ((ret = __memp_fget(mpf, &metapg, 0, &meta)) != 0) {
if (DB_REDO(op)) {
if ((ret = __memp_fget(mpf,
&metapg, DB_MPOOL_CREATE, &meta)) != 0) {
(void)__LPUT(dbc, lock);
goto out;
}
meta->dbmeta.pgno = metapg;
meta->dbmeta.type = P_QAMMETA;
} else {
*lsnp = argp->prev_lsn;
ret = 0;
(void)__LPUT(dbc, lock);
goto out;
}
}
modified = 0;
if (DB_UNDO(op)) {
if (QAM_BEFORE_FIRST(meta, argp->recno)) {
meta->first_recno = argp->recno;
modified = 1;
}
trunc_lsn = ((DB_TXNHEAD *)info)->trunc_lsn;
if (!IS_ZERO_LSN(trunc_lsn) &&
log_compare(&LSN(meta), &trunc_lsn) > 0) {
LSN(meta) = trunc_lsn;
modified = 1;
}
} else {
if (log_compare(&LSN(meta), lsnp) < 0) {
LSN(meta) = *lsnp;
modified = 1;
}
rec_ext = 0;
if (meta->page_ext != 0)
rec_ext = meta->page_ext * meta->rec_page;
cp = (QUEUE_CURSOR *)dbc->internal;
if (meta->first_recno == RECNO_OOB)
meta->first_recno++;
while (meta->first_recno != meta->cur_recno &&
!QAM_BEFORE_FIRST(meta, argp->recno + 1)) {
if ((ret = __qam_position(dbc,
&meta->first_recno, QAM_READ, &exact)) != 0)
goto err;
if (cp->page != NULL)
__qam_fput(file_dbp, cp->pgno, cp->page, 0);
if (exact == 1)
break;
if (cp->page != NULL &&
rec_ext != 0 && meta->first_recno % rec_ext == 0)
if ((ret =
__qam_fremove(file_dbp, cp->pgno)) != 0)
goto err;
meta->first_recno++;
if (meta->first_recno == RECNO_OOB)
meta->first_recno++;
modified = 1;
}
}
if ((ret = __memp_fput(mpf, meta, modified ? DB_MPOOL_DIRTY : 0)) != 0)
goto err1;
(void)__LPUT(dbc, lock);
done: *lsnp = argp->prev_lsn;
ret = 0;
if (0) {
err: (void)__memp_fput(mpf, meta, 0);
err1: (void)__LPUT(dbc, lock);
}
out: REC_CLOSE;
}
int
__qam_mvptr_recover(dbenv, dbtp, lsnp, op, info)
DB_ENV *dbenv;
DBT *dbtp;
DB_LSN *lsnp;
db_recops op;
void *info;
{
__qam_mvptr_args *argp;
DB *file_dbp;
DBC *dbc;
DB_LSN trunc_lsn;
DB_LOCK lock;
DB_MPOOLFILE *mpf;
QMETA *meta;
db_pgno_t metapg;
int cmp_n, cmp_p, modified, ret;
REC_PRINT(__qam_mvptr_print);
REC_INTRO(__qam_mvptr_read, 1);
metapg = ((QUEUE *)file_dbp->q_internal)->q_meta;
if ((ret = __db_lget(dbc,
LCK_ROLLBACK, metapg, DB_LOCK_WRITE, 0, &lock)) != 0)
goto done;
if ((ret = __memp_fget(mpf, &metapg, 0, &meta)) != 0) {
if (DB_REDO(op)) {
if ((ret = __memp_fget(mpf,
&metapg, DB_MPOOL_CREATE, &meta)) != 0) {
(void)__LPUT(dbc, lock);
goto out;
}
meta->dbmeta.pgno = metapg;
meta->dbmeta.type = P_QAMMETA;
} else {
*lsnp = argp->prev_lsn;
ret = 0;
(void)__LPUT(dbc, lock);
goto out;
}
}
modified = 0;
cmp_n = log_compare(lsnp, &LSN(meta));
cmp_p = log_compare(&LSN(meta), &argp->metalsn);
if (DB_UNDO(op)) {
if ((argp->opcode & QAM_TRUNCATE) && cmp_n <= 0) {
meta->first_recno = argp->old_first;
meta->cur_recno = argp->old_cur;
LSN(meta) = argp->metalsn;
modified = 1;
}
trunc_lsn = ((DB_TXNHEAD *)info)->trunc_lsn;
if (!IS_ZERO_LSN(trunc_lsn) &&
log_compare(&trunc_lsn, &LSN(meta)) < 0) {
LSN(meta) = argp->metalsn;
modified = 1;
}
} else if (op == DB_TXN_APPLY || cmp_p == 0) {
if (argp->opcode & QAM_SETFIRST)
meta->first_recno = argp->new_first;
if (argp->opcode & QAM_SETCUR)
meta->cur_recno = argp->new_cur;
modified = 1;
meta->dbmeta.lsn = *lsnp;
}
if ((ret = __memp_fput(mpf, meta, modified ? DB_MPOOL_DIRTY : 0)) != 0)
goto out;
(void)__LPUT(dbc, lock);
done: *lsnp = argp->prev_lsn;
ret = 0;
out: REC_CLOSE;
}
int
__qam_del_recover(dbenv, dbtp, lsnp, op, info)
DB_ENV *dbenv;
DBT *dbtp;
DB_LSN *lsnp;
db_recops op;
void *info;
{
__qam_del_args *argp;
DB *file_dbp;
DBC *dbc;
DB_LOCK lock;
DB_MPOOLFILE *mpf;
QAMDATA *qp;
QMETA *meta;
QPAGE *pagep;
db_pgno_t metapg;
int cmp_n, modified, ret;
COMPQUIET(info, NULL);
REC_PRINT(__qam_del_print);
REC_INTRO(__qam_del_read, 1);
if ((ret = __qam_fget(file_dbp,
&argp->pgno, DB_MPOOL_CREATE, &pagep)) != 0)
goto out;
modified = 0;
if (pagep->pgno == PGNO_INVALID) {
pagep->pgno = argp->pgno;
pagep->type = P_QAMDATA;
modified = 1;
}
cmp_n = log_compare(lsnp, &LSN(pagep));
if (DB_UNDO(op)) {
metapg = ((QUEUE *)file_dbp->q_internal)->q_meta;
if ((ret = __db_lget(dbc,
LCK_ROLLBACK, metapg, DB_LOCK_WRITE, 0, &lock)) != 0)
goto err;
if ((ret = __memp_fget(mpf, &metapg, 0, &meta)) != 0) {
(void)__LPUT(dbc, lock);
goto err;
}
if (meta->first_recno == RECNO_OOB ||
(QAM_BEFORE_FIRST(meta, argp->recno) &&
(meta->first_recno <= meta->cur_recno ||
meta->first_recno -
argp->recno < argp->recno - meta->cur_recno))) {
meta->first_recno = argp->recno;
(void)__memp_fput(mpf, meta, DB_MPOOL_DIRTY);
} else
(void)__memp_fput(mpf, meta, 0);
(void)__LPUT(dbc, lock);
qp = QAM_GET_RECORD(file_dbp, pagep, argp->indx);
F_SET(qp, QAM_VALID);
if (op == DB_TXN_BACKWARD_ROLL && cmp_n <= 0)
LSN(pagep) = argp->lsn;
modified = 1;
} else if (op == DB_TXN_APPLY || (cmp_n > 0 && DB_REDO(op))) {
qp = QAM_GET_RECORD(file_dbp, pagep, argp->indx);
F_CLR(qp, QAM_VALID);
LSN(pagep) = *lsnp;
modified = 1;
}
if ((ret = __qam_fput(file_dbp,
argp->pgno, pagep, modified ? DB_MPOOL_DIRTY : 0)) != 0)
goto out;
done: *lsnp = argp->prev_lsn;
ret = 0;
if (0) {
err: (void)__qam_fput(file_dbp, argp->pgno, pagep, 0);
}
out: REC_CLOSE;
}
int
__qam_delext_recover(dbenv, dbtp, lsnp, op, info)
DB_ENV *dbenv;
DBT *dbtp;
DB_LSN *lsnp;
db_recops op;
void *info;
{
__qam_delext_args *argp;
DB *file_dbp;
DBC *dbc;
DB_LOCK lock;
DB_MPOOLFILE *mpf;
QAMDATA *qp;
QMETA *meta;
QPAGE *pagep;
db_pgno_t metapg;
int cmp_n, modified, ret;
COMPQUIET(info, NULL);
REC_PRINT(__qam_delext_print);
REC_INTRO(__qam_delext_read, 1);
if ((ret = __qam_fget(file_dbp, &argp->pgno, 0, &pagep)) != 0) {
if (ret != DB_PAGE_NOTFOUND && ret != ENOENT)
goto out;
if (DB_REDO(op))
goto done;
if ((ret = __qam_fget(file_dbp,
&argp->pgno, DB_MPOOL_CREATE, &pagep)) != 0)
goto out;
}
modified = 0;
if (pagep->pgno == PGNO_INVALID) {
pagep->pgno = argp->pgno;
pagep->type = P_QAMDATA;
modified = 1;
}
cmp_n = log_compare(lsnp, &LSN(pagep));
if (DB_UNDO(op)) {
metapg = ((QUEUE *)file_dbp->q_internal)->q_meta;
if ((ret = __db_lget(dbc,
LCK_ROLLBACK, metapg, DB_LOCK_WRITE, 0, &lock)) != 0)
goto err;
if ((ret = __memp_fget(mpf, &metapg, 0, &meta)) != 0) {
(void)__LPUT(dbc, lock);
goto err;
}
if (meta->first_recno == RECNO_OOB ||
(QAM_BEFORE_FIRST(meta, argp->recno) &&
(meta->first_recno <= meta->cur_recno ||
meta->first_recno -
argp->recno < argp->recno - meta->cur_recno))) {
meta->first_recno = argp->recno;
(void)__memp_fput(mpf, meta, DB_MPOOL_DIRTY);
} else
(void)__memp_fput(mpf, meta, 0);
(void)__LPUT(dbc, lock);
if ((ret = __qam_pitem(dbc, pagep,
argp->indx, argp->recno, &argp->data)) != 0)
goto err;
if (op == DB_TXN_BACKWARD_ROLL && cmp_n <= 0)
LSN(pagep) = argp->lsn;
modified = 1;
} else if (op == DB_TXN_APPLY || (cmp_n > 0 && DB_REDO(op))) {
qp = QAM_GET_RECORD(file_dbp, pagep, argp->indx);
F_CLR(qp, QAM_VALID);
LSN(pagep) = *lsnp;
modified = 1;
}
if ((ret = __qam_fput(file_dbp,
argp->pgno, pagep, modified ? DB_MPOOL_DIRTY : 0)) != 0)
goto out;
done: *lsnp = argp->prev_lsn;
ret = 0;
if (0) {
err: (void)__qam_fput(file_dbp, argp->pgno, pagep, 0);
}
out: REC_CLOSE;
}
int
__qam_add_recover(dbenv, dbtp, lsnp, op, info)
DB_ENV *dbenv;
DBT *dbtp;
DB_LSN *lsnp;
db_recops op;
void *info;
{
__qam_add_args *argp;
DB *file_dbp;
DBC *dbc;
DB_MPOOLFILE *mpf;
QAMDATA *qp;
QMETA *meta;
QPAGE *pagep;
db_pgno_t metapg;
int cmp_n, meta_dirty, modified, ret;
COMPQUIET(info, NULL);
REC_PRINT(__qam_add_print);
REC_INTRO(__qam_add_read, 1);
modified = 0;
if ((ret = __qam_fget(file_dbp, &argp->pgno, 0, &pagep)) != 0) {
if (ret != DB_PAGE_NOTFOUND && ret != ENOENT)
goto out;
if (DB_UNDO(op))
goto done;
if ((ret = __qam_fget(file_dbp,
&argp->pgno, DB_MPOOL_CREATE, &pagep)) != 0)
goto out;
}
if (pagep->pgno == PGNO_INVALID) {
pagep->pgno = argp->pgno;
pagep->type = P_QAMDATA;
modified = 1;
}
cmp_n = log_compare(lsnp, &LSN(pagep));
if (DB_REDO(op)) {
metapg = ((QUEUE *)file_dbp->q_internal)->q_meta;
if ((ret = __memp_fget(mpf, &metapg, 0, &meta)) != 0)
goto err;
meta_dirty = 0;
if (QAM_BEFORE_FIRST(meta, argp->recno)) {
meta->first_recno = argp->recno;
meta_dirty = 1;
}
if (argp->recno == meta->cur_recno ||
QAM_AFTER_CURRENT(meta, argp->recno)) {
meta->cur_recno = argp->recno + 1;
meta_dirty = 1;
}
if ((ret = __memp_fput(mpf,
meta, meta_dirty? DB_MPOOL_DIRTY : 0)) != 0)
goto err;
if (op == DB_TXN_APPLY || cmp_n > 0) {
if ((ret = __qam_pitem(dbc,
pagep, argp->indx, argp->recno, &argp->data)) != 0)
goto err;
LSN(pagep) = *lsnp;
modified = 1;
}
} else if (DB_UNDO(op)) {
if (argp->olddata.size != 0) {
if ((ret = __qam_pitem(dbc, pagep,
argp->indx, argp->recno, &argp->olddata)) != 0)
goto err;
if (!(argp->vflag & QAM_VALID)) {
qp = QAM_GET_RECORD(
file_dbp, pagep, argp->indx);
F_CLR(qp, QAM_VALID);
}
modified = 1;
} else {
qp = QAM_GET_RECORD(file_dbp, pagep, argp->indx);
qp->flags = 0;
modified = 1;
}
if (op == DB_TXN_BACKWARD_ROLL && cmp_n <= 0)
LSN(pagep) = argp->lsn;
}
if ((ret = __qam_fput(file_dbp,
argp->pgno, pagep, modified ? DB_MPOOL_DIRTY : 0)) != 0)
goto out;
done: *lsnp = argp->prev_lsn;
ret = 0;
if (0) {
err: (void)__qam_fput(file_dbp, argp->pgno, pagep, 0);
}
out: REC_CLOSE;
}