mirror of
https://github.com/MariaDB/server.git
synced 2026-05-03 05:35:31 +02:00
881 lines
18 KiB
Text
881 lines
18 KiB
Text
#include "db_config.h"
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#ifndef NO_SYSTEM_INCLUDES
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#include <sys/types.h>
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#include <string.h>
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#endif
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#include "db_int.h"
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#include "db_page.h"
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#include "ham.h"
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#include "log.h"
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/*
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* __ham_insdel_recover --
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* Recovery function for insdel.
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*
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* PUBLIC: int __ham_insdel_recover
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* PUBLIC: __P((DB_ENV *, DBT *, DB_LSN *, db_recops, void *));
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*/
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int
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__ham_insdel_recover(dbenv, dbtp, lsnp, op, info)
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DB_ENV *dbenv;
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DBT *dbtp;
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DB_LSN *lsnp;
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db_recops op;
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void *info;
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{
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__ham_insdel_args *argp;
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DB *file_dbp;
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DBC *dbc;
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DB_MPOOLFILE *mpf;
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PAGE *pagep;
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int cmp_n, cmp_p, modified, ret;
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REC_PRINT(__ham_insdel_print);
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REC_INTRO(__ham_insdel_read);
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if ((ret = memp_fget(mpf, &argp->pgno, 0, &pagep)) != 0)
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if (DB_REDO(op)) {
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if ((ret = memp_fget(mpf,
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&argp->pgno, DB_MPOOL_CREATE, &pagep)) != 0)
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goto out;
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} else {
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*lsnp = argp->prev_lsn;
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ret = 0;
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goto out;
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}
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modified = 0;
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cmp_n = log_compare(lsnp, &LSN(pagep));
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/*
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* Use this when there is something like "pagelsn" in the argp
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* structure. Sometimes, you might need to compare meta-data
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* lsn's instead.
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*
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* cmp_p = log_compare(&LSN(pagep), argp->pagelsn);
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*/
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if (cmp_p == 0 && DB_REDO(op)) {
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/* Need to redo update described. */
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modified = 1;
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} else if (cmp_n == 0 && !DB_REDO(op)) {
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/* Need to undo update described. */
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modified = 1;
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}
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if (ret = memp_fput(mpf, pagep, modified ? DB_MPOOL_DIRTY : 0))
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goto out;
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*lsnp = argp->prev_lsn;
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ret = 0;
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out: REC_CLOSE;
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}
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/*
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* __ham_newpage_recover --
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* Recovery function for newpage.
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*
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* PUBLIC: int __ham_newpage_recover
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* PUBLIC: __P((DB_ENV *, DBT *, DB_LSN *, db_recops, void *));
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*/
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int
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__ham_newpage_recover(dbenv, dbtp, lsnp, op, info)
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DB_ENV *dbenv;
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DBT *dbtp;
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DB_LSN *lsnp;
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db_recops op;
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void *info;
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{
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__ham_newpage_args *argp;
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DB *file_dbp;
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DBC *dbc;
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DB_MPOOLFILE *mpf;
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PAGE *pagep;
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int cmp_n, cmp_p, modified, ret;
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REC_PRINT(__ham_newpage_print);
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REC_INTRO(__ham_newpage_read);
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if ((ret = memp_fget(mpf, &argp->pgno, 0, &pagep)) != 0)
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if (DB_REDO(op)) {
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if ((ret = memp_fget(mpf,
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&argp->pgno, DB_MPOOL_CREATE, &pagep)) != 0)
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goto out;
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} else {
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*lsnp = argp->prev_lsn;
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ret = 0;
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goto out;
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}
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modified = 0;
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cmp_n = log_compare(lsnp, &LSN(pagep));
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/*
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* Use this when there is something like "pagelsn" in the argp
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* structure. Sometimes, you might need to compare meta-data
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* lsn's instead.
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*
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* cmp_p = log_compare(&LSN(pagep), argp->pagelsn);
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*/
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if (cmp_p == 0 && DB_REDO(op)) {
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/* Need to redo update described. */
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modified = 1;
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} else if (cmp_n == 0 && !DB_REDO(op)) {
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/* Need to undo update described. */
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modified = 1;
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}
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if (ret = memp_fput(mpf, pagep, modified ? DB_MPOOL_DIRTY : 0))
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goto out;
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*lsnp = argp->prev_lsn;
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ret = 0;
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out: REC_CLOSE;
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}
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/*
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* __ham_splitmeta_recover --
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* Recovery function for splitmeta.
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*
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* PUBLIC: int __ham_splitmeta_recover
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* PUBLIC: __P((DB_ENV *, DBT *, DB_LSN *, db_recops, void *));
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*/
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int
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__ham_splitmeta_recover(dbenv, dbtp, lsnp, op, info)
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DB_ENV *dbenv;
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DBT *dbtp;
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DB_LSN *lsnp;
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db_recops op;
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void *info;
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{
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__ham_splitmeta_args *argp;
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DB *file_dbp;
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DBC *dbc;
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DB_MPOOLFILE *mpf;
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PAGE *pagep;
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int cmp_n, cmp_p, modified, ret;
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REC_PRINT(__ham_splitmeta_print);
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REC_INTRO(__ham_splitmeta_read);
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if ((ret = memp_fget(mpf, &argp->pgno, 0, &pagep)) != 0)
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if (DB_REDO(op)) {
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if ((ret = memp_fget(mpf,
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&argp->pgno, DB_MPOOL_CREATE, &pagep)) != 0)
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goto out;
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} else {
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*lsnp = argp->prev_lsn;
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ret = 0;
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goto out;
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}
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modified = 0;
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cmp_n = log_compare(lsnp, &LSN(pagep));
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/*
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* Use this when there is something like "pagelsn" in the argp
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* structure. Sometimes, you might need to compare meta-data
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* lsn's instead.
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*
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* cmp_p = log_compare(&LSN(pagep), argp->pagelsn);
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*/
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if (cmp_p == 0 && DB_REDO(op)) {
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/* Need to redo update described. */
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modified = 1;
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} else if (cmp_n == 0 && !DB_REDO(op)) {
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/* Need to undo update described. */
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modified = 1;
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}
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if (ret = memp_fput(mpf, pagep, modified ? DB_MPOOL_DIRTY : 0))
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goto out;
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*lsnp = argp->prev_lsn;
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ret = 0;
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out: REC_CLOSE;
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}
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/*
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* __ham_splitdata_recover --
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* Recovery function for splitdata.
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*
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* PUBLIC: int __ham_splitdata_recover
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* PUBLIC: __P((DB_ENV *, DBT *, DB_LSN *, db_recops, void *));
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*/
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int
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__ham_splitdata_recover(dbenv, dbtp, lsnp, op, info)
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DB_ENV *dbenv;
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DBT *dbtp;
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DB_LSN *lsnp;
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db_recops op;
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void *info;
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{
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__ham_splitdata_args *argp;
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DB *file_dbp;
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DBC *dbc;
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DB_MPOOLFILE *mpf;
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PAGE *pagep;
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int cmp_n, cmp_p, modified, ret;
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REC_PRINT(__ham_splitdata_print);
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REC_INTRO(__ham_splitdata_read);
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if ((ret = memp_fget(mpf, &argp->pgno, 0, &pagep)) != 0)
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if (DB_REDO(op)) {
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if ((ret = memp_fget(mpf,
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&argp->pgno, DB_MPOOL_CREATE, &pagep)) != 0)
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goto out;
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} else {
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*lsnp = argp->prev_lsn;
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ret = 0;
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goto out;
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}
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modified = 0;
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cmp_n = log_compare(lsnp, &LSN(pagep));
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/*
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* Use this when there is something like "pagelsn" in the argp
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* structure. Sometimes, you might need to compare meta-data
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* lsn's instead.
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*
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* cmp_p = log_compare(&LSN(pagep), argp->pagelsn);
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*/
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if (cmp_p == 0 && DB_REDO(op)) {
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/* Need to redo update described. */
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modified = 1;
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} else if (cmp_n == 0 && !DB_REDO(op)) {
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/* Need to undo update described. */
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modified = 1;
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}
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if (ret = memp_fput(mpf, pagep, modified ? DB_MPOOL_DIRTY : 0))
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goto out;
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*lsnp = argp->prev_lsn;
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ret = 0;
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out: REC_CLOSE;
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}
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/*
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* __ham_replace_recover --
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* Recovery function for replace.
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*
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* PUBLIC: int __ham_replace_recover
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* PUBLIC: __P((DB_ENV *, DBT *, DB_LSN *, db_recops, void *));
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*/
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int
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__ham_replace_recover(dbenv, dbtp, lsnp, op, info)
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DB_ENV *dbenv;
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DBT *dbtp;
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DB_LSN *lsnp;
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db_recops op;
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void *info;
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{
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__ham_replace_args *argp;
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DB *file_dbp;
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DBC *dbc;
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DB_MPOOLFILE *mpf;
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PAGE *pagep;
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int cmp_n, cmp_p, modified, ret;
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REC_PRINT(__ham_replace_print);
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REC_INTRO(__ham_replace_read);
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if ((ret = memp_fget(mpf, &argp->pgno, 0, &pagep)) != 0)
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if (DB_REDO(op)) {
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if ((ret = memp_fget(mpf,
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&argp->pgno, DB_MPOOL_CREATE, &pagep)) != 0)
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goto out;
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} else {
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*lsnp = argp->prev_lsn;
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ret = 0;
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goto out;
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}
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modified = 0;
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cmp_n = log_compare(lsnp, &LSN(pagep));
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/*
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* Use this when there is something like "pagelsn" in the argp
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* structure. Sometimes, you might need to compare meta-data
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* lsn's instead.
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*
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* cmp_p = log_compare(&LSN(pagep), argp->pagelsn);
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*/
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if (cmp_p == 0 && DB_REDO(op)) {
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/* Need to redo update described. */
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modified = 1;
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} else if (cmp_n == 0 && !DB_REDO(op)) {
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/* Need to undo update described. */
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modified = 1;
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}
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if (ret = memp_fput(mpf, pagep, modified ? DB_MPOOL_DIRTY : 0))
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goto out;
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*lsnp = argp->prev_lsn;
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ret = 0;
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out: REC_CLOSE;
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}
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/*
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* __ham_newpgno_recover --
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* Recovery function for newpgno.
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*
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* PUBLIC: int __ham_newpgno_recover
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* PUBLIC: __P((DB_ENV *, DBT *, DB_LSN *, db_recops, void *));
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*/
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int
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__ham_newpgno_recover(dbenv, dbtp, lsnp, op, info)
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DB_ENV *dbenv;
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DBT *dbtp;
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DB_LSN *lsnp;
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db_recops op;
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void *info;
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{
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__ham_newpgno_args *argp;
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DB *file_dbp;
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DBC *dbc;
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DB_MPOOLFILE *mpf;
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PAGE *pagep;
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int cmp_n, cmp_p, modified, ret;
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REC_PRINT(__ham_newpgno_print);
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REC_INTRO(__ham_newpgno_read);
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if ((ret = memp_fget(mpf, &argp->pgno, 0, &pagep)) != 0)
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if (DB_REDO(op)) {
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if ((ret = memp_fget(mpf,
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&argp->pgno, DB_MPOOL_CREATE, &pagep)) != 0)
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goto out;
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} else {
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*lsnp = argp->prev_lsn;
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ret = 0;
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goto out;
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}
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modified = 0;
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cmp_n = log_compare(lsnp, &LSN(pagep));
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/*
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* Use this when there is something like "pagelsn" in the argp
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* structure. Sometimes, you might need to compare meta-data
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* lsn's instead.
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*
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* cmp_p = log_compare(&LSN(pagep), argp->pagelsn);
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*/
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if (cmp_p == 0 && DB_REDO(op)) {
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/* Need to redo update described. */
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modified = 1;
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} else if (cmp_n == 0 && !DB_REDO(op)) {
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/* Need to undo update described. */
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modified = 1;
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}
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if (ret = memp_fput(mpf, pagep, modified ? DB_MPOOL_DIRTY : 0))
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goto out;
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*lsnp = argp->prev_lsn;
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ret = 0;
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out: REC_CLOSE;
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}
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/*
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* __ham_ovfl_recover --
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* Recovery function for ovfl.
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*
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* PUBLIC: int __ham_ovfl_recover
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* PUBLIC: __P((DB_ENV *, DBT *, DB_LSN *, db_recops, void *));
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*/
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int
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__ham_ovfl_recover(dbenv, dbtp, lsnp, op, info)
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DB_ENV *dbenv;
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DBT *dbtp;
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DB_LSN *lsnp;
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db_recops op;
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void *info;
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{
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__ham_ovfl_args *argp;
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DB *file_dbp;
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DBC *dbc;
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DB_MPOOLFILE *mpf;
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PAGE *pagep;
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int cmp_n, cmp_p, modified, ret;
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REC_PRINT(__ham_ovfl_print);
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REC_INTRO(__ham_ovfl_read);
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if ((ret = memp_fget(mpf, &argp->pgno, 0, &pagep)) != 0)
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if (DB_REDO(op)) {
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if ((ret = memp_fget(mpf,
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&argp->pgno, DB_MPOOL_CREATE, &pagep)) != 0)
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goto out;
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} else {
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*lsnp = argp->prev_lsn;
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ret = 0;
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goto out;
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}
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modified = 0;
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cmp_n = log_compare(lsnp, &LSN(pagep));
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/*
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* Use this when there is something like "pagelsn" in the argp
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* structure. Sometimes, you might need to compare meta-data
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* lsn's instead.
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*
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* cmp_p = log_compare(&LSN(pagep), argp->pagelsn);
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*/
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if (cmp_p == 0 && DB_REDO(op)) {
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/* Need to redo update described. */
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modified = 1;
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} else if (cmp_n == 0 && !DB_REDO(op)) {
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/* Need to undo update described. */
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modified = 1;
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}
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if (ret = memp_fput(mpf, pagep, modified ? DB_MPOOL_DIRTY : 0))
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goto out;
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*lsnp = argp->prev_lsn;
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ret = 0;
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out: REC_CLOSE;
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}
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/*
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* __ham_copypage_recover --
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* Recovery function for copypage.
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*
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* PUBLIC: int __ham_copypage_recover
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* PUBLIC: __P((DB_ENV *, DBT *, DB_LSN *, db_recops, void *));
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*/
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int
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__ham_copypage_recover(dbenv, dbtp, lsnp, op, info)
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DB_ENV *dbenv;
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DBT *dbtp;
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DB_LSN *lsnp;
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db_recops op;
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void *info;
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{
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__ham_copypage_args *argp;
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DB *file_dbp;
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DBC *dbc;
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DB_MPOOLFILE *mpf;
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PAGE *pagep;
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int cmp_n, cmp_p, modified, ret;
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REC_PRINT(__ham_copypage_print);
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REC_INTRO(__ham_copypage_read);
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if ((ret = memp_fget(mpf, &argp->pgno, 0, &pagep)) != 0)
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if (DB_REDO(op)) {
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if ((ret = memp_fget(mpf,
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&argp->pgno, DB_MPOOL_CREATE, &pagep)) != 0)
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goto out;
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} else {
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*lsnp = argp->prev_lsn;
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ret = 0;
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goto out;
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}
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modified = 0;
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cmp_n = log_compare(lsnp, &LSN(pagep));
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/*
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* Use this when there is something like "pagelsn" in the argp
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* structure. Sometimes, you might need to compare meta-data
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* lsn's instead.
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*
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* cmp_p = log_compare(&LSN(pagep), argp->pagelsn);
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*/
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if (cmp_p == 0 && DB_REDO(op)) {
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/* Need to redo update described. */
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modified = 1;
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} else if (cmp_n == 0 && !DB_REDO(op)) {
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/* Need to undo update described. */
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modified = 1;
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}
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if (ret = memp_fput(mpf, pagep, modified ? DB_MPOOL_DIRTY : 0))
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goto out;
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*lsnp = argp->prev_lsn;
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ret = 0;
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out: REC_CLOSE;
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}
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/*
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* __ham_metagroup_recover --
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* Recovery function for metagroup.
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*
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* PUBLIC: int __ham_metagroup_recover
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* PUBLIC: __P((DB_ENV *, DBT *, DB_LSN *, db_recops, void *));
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*/
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int
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__ham_metagroup_recover(dbenv, dbtp, lsnp, op, info)
|
|
DB_ENV *dbenv;
|
|
DBT *dbtp;
|
|
DB_LSN *lsnp;
|
|
db_recops op;
|
|
void *info;
|
|
{
|
|
__ham_metagroup_args *argp;
|
|
DB *file_dbp;
|
|
DBC *dbc;
|
|
DB_MPOOLFILE *mpf;
|
|
PAGE *pagep;
|
|
int cmp_n, cmp_p, modified, ret;
|
|
|
|
REC_PRINT(__ham_metagroup_print);
|
|
REC_INTRO(__ham_metagroup_read);
|
|
|
|
if ((ret = memp_fget(mpf, &argp->pgno, 0, &pagep)) != 0)
|
|
if (DB_REDO(op)) {
|
|
if ((ret = memp_fget(mpf,
|
|
&argp->pgno, DB_MPOOL_CREATE, &pagep)) != 0)
|
|
goto out;
|
|
} else {
|
|
*lsnp = argp->prev_lsn;
|
|
ret = 0;
|
|
goto out;
|
|
}
|
|
|
|
modified = 0;
|
|
cmp_n = log_compare(lsnp, &LSN(pagep));
|
|
|
|
/*
|
|
* Use this when there is something like "pagelsn" in the argp
|
|
* structure. Sometimes, you might need to compare meta-data
|
|
* lsn's instead.
|
|
*
|
|
* cmp_p = log_compare(&LSN(pagep), argp->pagelsn);
|
|
*/
|
|
if (cmp_p == 0 && DB_REDO(op)) {
|
|
/* Need to redo update described. */
|
|
modified = 1;
|
|
} else if (cmp_n == 0 && !DB_REDO(op)) {
|
|
/* Need to undo update described. */
|
|
modified = 1;
|
|
}
|
|
if (ret = memp_fput(mpf, pagep, modified ? DB_MPOOL_DIRTY : 0))
|
|
goto out;
|
|
|
|
*lsnp = argp->prev_lsn;
|
|
ret = 0;
|
|
|
|
out: REC_CLOSE;
|
|
}
|
|
|
|
/*
|
|
* __ham_groupalloc1_recover --
|
|
* Recovery function for groupalloc1.
|
|
*
|
|
* PUBLIC: int __ham_groupalloc1_recover
|
|
* PUBLIC: __P((DB_ENV *, DBT *, DB_LSN *, db_recops, void *));
|
|
*/
|
|
int
|
|
__ham_groupalloc1_recover(dbenv, dbtp, lsnp, op, info)
|
|
DB_ENV *dbenv;
|
|
DBT *dbtp;
|
|
DB_LSN *lsnp;
|
|
db_recops op;
|
|
void *info;
|
|
{
|
|
__ham_groupalloc1_args *argp;
|
|
DB *file_dbp;
|
|
DBC *dbc;
|
|
DB_MPOOLFILE *mpf;
|
|
PAGE *pagep;
|
|
int cmp_n, cmp_p, modified, ret;
|
|
|
|
REC_PRINT(__ham_groupalloc1_print);
|
|
REC_INTRO(__ham_groupalloc1_read);
|
|
|
|
if ((ret = memp_fget(mpf, &argp->pgno, 0, &pagep)) != 0)
|
|
if (DB_REDO(op)) {
|
|
if ((ret = memp_fget(mpf,
|
|
&argp->pgno, DB_MPOOL_CREATE, &pagep)) != 0)
|
|
goto out;
|
|
} else {
|
|
*lsnp = argp->prev_lsn;
|
|
ret = 0;
|
|
goto out;
|
|
}
|
|
|
|
modified = 0;
|
|
cmp_n = log_compare(lsnp, &LSN(pagep));
|
|
|
|
/*
|
|
* Use this when there is something like "pagelsn" in the argp
|
|
* structure. Sometimes, you might need to compare meta-data
|
|
* lsn's instead.
|
|
*
|
|
* cmp_p = log_compare(&LSN(pagep), argp->pagelsn);
|
|
*/
|
|
if (cmp_p == 0 && DB_REDO(op)) {
|
|
/* Need to redo update described. */
|
|
modified = 1;
|
|
} else if (cmp_n == 0 && !DB_REDO(op)) {
|
|
/* Need to undo update described. */
|
|
modified = 1;
|
|
}
|
|
if (ret = memp_fput(mpf, pagep, modified ? DB_MPOOL_DIRTY : 0))
|
|
goto out;
|
|
|
|
*lsnp = argp->prev_lsn;
|
|
ret = 0;
|
|
|
|
out: REC_CLOSE;
|
|
}
|
|
|
|
/*
|
|
* __ham_groupalloc2_recover --
|
|
* Recovery function for groupalloc2.
|
|
*
|
|
* PUBLIC: int __ham_groupalloc2_recover
|
|
* PUBLIC: __P((DB_ENV *, DBT *, DB_LSN *, db_recops, void *));
|
|
*/
|
|
int
|
|
__ham_groupalloc2_recover(dbenv, dbtp, lsnp, op, info)
|
|
DB_ENV *dbenv;
|
|
DBT *dbtp;
|
|
DB_LSN *lsnp;
|
|
db_recops op;
|
|
void *info;
|
|
{
|
|
__ham_groupalloc2_args *argp;
|
|
DB *file_dbp;
|
|
DBC *dbc;
|
|
DB_MPOOLFILE *mpf;
|
|
PAGE *pagep;
|
|
int cmp_n, cmp_p, modified, ret;
|
|
|
|
REC_PRINT(__ham_groupalloc2_print);
|
|
REC_INTRO(__ham_groupalloc2_read);
|
|
|
|
if ((ret = memp_fget(mpf, &argp->pgno, 0, &pagep)) != 0)
|
|
if (DB_REDO(op)) {
|
|
if ((ret = memp_fget(mpf,
|
|
&argp->pgno, DB_MPOOL_CREATE, &pagep)) != 0)
|
|
goto out;
|
|
} else {
|
|
*lsnp = argp->prev_lsn;
|
|
ret = 0;
|
|
goto out;
|
|
}
|
|
|
|
modified = 0;
|
|
cmp_n = log_compare(lsnp, &LSN(pagep));
|
|
|
|
/*
|
|
* Use this when there is something like "pagelsn" in the argp
|
|
* structure. Sometimes, you might need to compare meta-data
|
|
* lsn's instead.
|
|
*
|
|
* cmp_p = log_compare(&LSN(pagep), argp->pagelsn);
|
|
*/
|
|
if (cmp_p == 0 && DB_REDO(op)) {
|
|
/* Need to redo update described. */
|
|
modified = 1;
|
|
} else if (cmp_n == 0 && !DB_REDO(op)) {
|
|
/* Need to undo update described. */
|
|
modified = 1;
|
|
}
|
|
if (ret = memp_fput(mpf, pagep, modified ? DB_MPOOL_DIRTY : 0))
|
|
goto out;
|
|
|
|
*lsnp = argp->prev_lsn;
|
|
ret = 0;
|
|
|
|
out: REC_CLOSE;
|
|
}
|
|
|
|
/*
|
|
* __ham_groupalloc_recover --
|
|
* Recovery function for groupalloc.
|
|
*
|
|
* PUBLIC: int __ham_groupalloc_recover
|
|
* PUBLIC: __P((DB_ENV *, DBT *, DB_LSN *, db_recops, void *));
|
|
*/
|
|
int
|
|
__ham_groupalloc_recover(dbenv, dbtp, lsnp, op, info)
|
|
DB_ENV *dbenv;
|
|
DBT *dbtp;
|
|
DB_LSN *lsnp;
|
|
db_recops op;
|
|
void *info;
|
|
{
|
|
__ham_groupalloc_args *argp;
|
|
DB *file_dbp;
|
|
DBC *dbc;
|
|
DB_MPOOLFILE *mpf;
|
|
PAGE *pagep;
|
|
int cmp_n, cmp_p, modified, ret;
|
|
|
|
REC_PRINT(__ham_groupalloc_print);
|
|
REC_INTRO(__ham_groupalloc_read);
|
|
|
|
if ((ret = memp_fget(mpf, &argp->pgno, 0, &pagep)) != 0)
|
|
if (DB_REDO(op)) {
|
|
if ((ret = memp_fget(mpf,
|
|
&argp->pgno, DB_MPOOL_CREATE, &pagep)) != 0)
|
|
goto out;
|
|
} else {
|
|
*lsnp = argp->prev_lsn;
|
|
ret = 0;
|
|
goto out;
|
|
}
|
|
|
|
modified = 0;
|
|
cmp_n = log_compare(lsnp, &LSN(pagep));
|
|
|
|
/*
|
|
* Use this when there is something like "pagelsn" in the argp
|
|
* structure. Sometimes, you might need to compare meta-data
|
|
* lsn's instead.
|
|
*
|
|
* cmp_p = log_compare(&LSN(pagep), argp->pagelsn);
|
|
*/
|
|
if (cmp_p == 0 && DB_REDO(op)) {
|
|
/* Need to redo update described. */
|
|
modified = 1;
|
|
} else if (cmp_n == 0 && !DB_REDO(op)) {
|
|
/* Need to undo update described. */
|
|
modified = 1;
|
|
}
|
|
if (ret = memp_fput(mpf, pagep, modified ? DB_MPOOL_DIRTY : 0))
|
|
goto out;
|
|
|
|
*lsnp = argp->prev_lsn;
|
|
ret = 0;
|
|
|
|
out: REC_CLOSE;
|
|
}
|
|
|
|
/*
|
|
* __ham_curadj_recover --
|
|
* Recovery function for curadj.
|
|
*
|
|
* PUBLIC: int __ham_curadj_recover
|
|
* PUBLIC: __P((DB_ENV *, DBT *, DB_LSN *, db_recops, void *));
|
|
*/
|
|
int
|
|
__ham_curadj_recover(dbenv, dbtp, lsnp, op, info)
|
|
DB_ENV *dbenv;
|
|
DBT *dbtp;
|
|
DB_LSN *lsnp;
|
|
db_recops op;
|
|
void *info;
|
|
{
|
|
__ham_curadj_args *argp;
|
|
DB *file_dbp;
|
|
DBC *dbc;
|
|
DB_MPOOLFILE *mpf;
|
|
PAGE *pagep;
|
|
int cmp_n, cmp_p, modified, ret;
|
|
|
|
REC_PRINT(__ham_curadj_print);
|
|
REC_INTRO(__ham_curadj_read);
|
|
|
|
if ((ret = memp_fget(mpf, &argp->pgno, 0, &pagep)) != 0)
|
|
if (DB_REDO(op)) {
|
|
if ((ret = memp_fget(mpf,
|
|
&argp->pgno, DB_MPOOL_CREATE, &pagep)) != 0)
|
|
goto out;
|
|
} else {
|
|
*lsnp = argp->prev_lsn;
|
|
ret = 0;
|
|
goto out;
|
|
}
|
|
|
|
modified = 0;
|
|
cmp_n = log_compare(lsnp, &LSN(pagep));
|
|
|
|
/*
|
|
* Use this when there is something like "pagelsn" in the argp
|
|
* structure. Sometimes, you might need to compare meta-data
|
|
* lsn's instead.
|
|
*
|
|
* cmp_p = log_compare(&LSN(pagep), argp->pagelsn);
|
|
*/
|
|
if (cmp_p == 0 && DB_REDO(op)) {
|
|
/* Need to redo update described. */
|
|
modified = 1;
|
|
} else if (cmp_n == 0 && !DB_REDO(op)) {
|
|
/* Need to undo update described. */
|
|
modified = 1;
|
|
}
|
|
if (ret = memp_fput(mpf, pagep, modified ? DB_MPOOL_DIRTY : 0))
|
|
goto out;
|
|
|
|
*lsnp = argp->prev_lsn;
|
|
ret = 0;
|
|
|
|
out: REC_CLOSE;
|
|
}
|
|
|
|
/*
|
|
* __ham_chgpg_recover --
|
|
* Recovery function for chgpg.
|
|
*
|
|
* PUBLIC: int __ham_chgpg_recover
|
|
* PUBLIC: __P((DB_ENV *, DBT *, DB_LSN *, db_recops, void *));
|
|
*/
|
|
int
|
|
__ham_chgpg_recover(dbenv, dbtp, lsnp, op, info)
|
|
DB_ENV *dbenv;
|
|
DBT *dbtp;
|
|
DB_LSN *lsnp;
|
|
db_recops op;
|
|
void *info;
|
|
{
|
|
__ham_chgpg_args *argp;
|
|
DB *file_dbp;
|
|
DBC *dbc;
|
|
DB_MPOOLFILE *mpf;
|
|
PAGE *pagep;
|
|
int cmp_n, cmp_p, modified, ret;
|
|
|
|
REC_PRINT(__ham_chgpg_print);
|
|
REC_INTRO(__ham_chgpg_read);
|
|
|
|
if ((ret = memp_fget(mpf, &argp->pgno, 0, &pagep)) != 0)
|
|
if (DB_REDO(op)) {
|
|
if ((ret = memp_fget(mpf,
|
|
&argp->pgno, DB_MPOOL_CREATE, &pagep)) != 0)
|
|
goto out;
|
|
} else {
|
|
*lsnp = argp->prev_lsn;
|
|
ret = 0;
|
|
goto out;
|
|
}
|
|
|
|
modified = 0;
|
|
cmp_n = log_compare(lsnp, &LSN(pagep));
|
|
|
|
/*
|
|
* Use this when there is something like "pagelsn" in the argp
|
|
* structure. Sometimes, you might need to compare meta-data
|
|
* lsn's instead.
|
|
*
|
|
* cmp_p = log_compare(&LSN(pagep), argp->pagelsn);
|
|
*/
|
|
if (cmp_p == 0 && DB_REDO(op)) {
|
|
/* Need to redo update described. */
|
|
modified = 1;
|
|
} else if (cmp_n == 0 && !DB_REDO(op)) {
|
|
/* Need to undo update described. */
|
|
modified = 1;
|
|
}
|
|
if (ret = memp_fput(mpf, pagep, modified ? DB_MPOOL_DIRTY : 0))
|
|
goto out;
|
|
|
|
*lsnp = argp->prev_lsn;
|
|
ret = 0;
|
|
|
|
out: REC_CLOSE;
|
|
}
|
|
|