rec_db
上传用户:tsgydb
上传日期:2007-04-14
资源大小:10674k
文件大小:10k
- #include "db_config.h"
- #ifndef NO_SYSTEM_INCLUDES
- #include <sys/types.h>
- #include <string.h>
- #endif
- #include "db_int.h"
- #include "db_page.h"
- #include "db.h"
- #include "log.h"
- /*
- * __db_addrem_recover --
- * Recovery function for addrem.
- *
- * PUBLIC: int __db_addrem_recover
- * PUBLIC: __P((DB_ENV *, DBT *, DB_LSN *, db_recops, void *));
- */
- int
- __db_addrem_recover(dbenv, dbtp, lsnp, op, info)
- DB_ENV *dbenv;
- DBT *dbtp;
- DB_LSN *lsnp;
- db_recops op;
- void *info;
- {
- __db_addrem_args *argp;
- DB *file_dbp;
- DBC *dbc;
- DB_MPOOLFILE *mpf;
- PAGE *pagep;
- int cmp_n, cmp_p, modified, ret;
- REC_PRINT(__db_addrem_print);
- REC_INTRO(__db_addrem_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;
- }
- /*
- * __db_split_recover --
- * Recovery function for split.
- *
- * PUBLIC: int __db_split_recover
- * PUBLIC: __P((DB_ENV *, DBT *, DB_LSN *, db_recops, void *));
- */
- int
- __db_split_recover(dbenv, dbtp, lsnp, op, info)
- DB_ENV *dbenv;
- DBT *dbtp;
- DB_LSN *lsnp;
- db_recops op;
- void *info;
- {
- __db_split_args *argp;
- DB *file_dbp;
- DBC *dbc;
- DB_MPOOLFILE *mpf;
- PAGE *pagep;
- int cmp_n, cmp_p, modified, ret;
- REC_PRINT(__db_split_print);
- REC_INTRO(__db_split_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;
- }
- /*
- * __db_big_recover --
- * Recovery function for big.
- *
- * PUBLIC: int __db_big_recover
- * PUBLIC: __P((DB_ENV *, DBT *, DB_LSN *, db_recops, void *));
- */
- int
- __db_big_recover(dbenv, dbtp, lsnp, op, info)
- DB_ENV *dbenv;
- DBT *dbtp;
- DB_LSN *lsnp;
- db_recops op;
- void *info;
- {
- __db_big_args *argp;
- DB *file_dbp;
- DBC *dbc;
- DB_MPOOLFILE *mpf;
- PAGE *pagep;
- int cmp_n, cmp_p, modified, ret;
- REC_PRINT(__db_big_print);
- REC_INTRO(__db_big_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;
- }
- /*
- * __db_ovref_recover --
- * Recovery function for ovref.
- *
- * PUBLIC: int __db_ovref_recover
- * PUBLIC: __P((DB_ENV *, DBT *, DB_LSN *, db_recops, void *));
- */
- int
- __db_ovref_recover(dbenv, dbtp, lsnp, op, info)
- DB_ENV *dbenv;
- DBT *dbtp;
- DB_LSN *lsnp;
- db_recops op;
- void *info;
- {
- __db_ovref_args *argp;
- DB *file_dbp;
- DBC *dbc;
- DB_MPOOLFILE *mpf;
- PAGE *pagep;
- int cmp_n, cmp_p, modified, ret;
- REC_PRINT(__db_ovref_print);
- REC_INTRO(__db_ovref_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;
- }
- /*
- * __db_relink_recover --
- * Recovery function for relink.
- *
- * PUBLIC: int __db_relink_recover
- * PUBLIC: __P((DB_ENV *, DBT *, DB_LSN *, db_recops, void *));
- */
- int
- __db_relink_recover(dbenv, dbtp, lsnp, op, info)
- DB_ENV *dbenv;
- DBT *dbtp;
- DB_LSN *lsnp;
- db_recops op;
- void *info;
- {
- __db_relink_args *argp;
- DB *file_dbp;
- DBC *dbc;
- DB_MPOOLFILE *mpf;
- PAGE *pagep;
- int cmp_n, cmp_p, modified, ret;
- REC_PRINT(__db_relink_print);
- REC_INTRO(__db_relink_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;
- }
- /*
- * __db_addpage_recover --
- * Recovery function for addpage.
- *
- * PUBLIC: int __db_addpage_recover
- * PUBLIC: __P((DB_ENV *, DBT *, DB_LSN *, db_recops, void *));
- */
- int
- __db_addpage_recover(dbenv, dbtp, lsnp, op, info)
- DB_ENV *dbenv;
- DBT *dbtp;
- DB_LSN *lsnp;
- db_recops op;
- void *info;
- {
- __db_addpage_args *argp;
- DB *file_dbp;
- DBC *dbc;
- DB_MPOOLFILE *mpf;
- PAGE *pagep;
- int cmp_n, cmp_p, modified, ret;
- REC_PRINT(__db_addpage_print);
- REC_INTRO(__db_addpage_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;
- }
- /*
- * __db_debug_recover --
- * Recovery function for debug.
- *
- * PUBLIC: int __db_debug_recover
- * PUBLIC: __P((DB_ENV *, DBT *, DB_LSN *, db_recops, void *));
- */
- int
- __db_debug_recover(dbenv, dbtp, lsnp, op, info)
- DB_ENV *dbenv;
- DBT *dbtp;
- DB_LSN *lsnp;
- db_recops op;
- void *info;
- {
- __db_debug_args *argp;
- DB *file_dbp;
- DBC *dbc;
- DB_MPOOLFILE *mpf;
- PAGE *pagep;
- int cmp_n, cmp_p, modified, ret;
- REC_PRINT(__db_debug_print);
- REC_INTRO(__db_debug_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;
- }
- /*
- * __db_noop_recover --
- * Recovery function for noop.
- *
- * PUBLIC: int __db_noop_recover
- * PUBLIC: __P((DB_ENV *, DBT *, DB_LSN *, db_recops, void *));
- */
- int
- __db_noop_recover(dbenv, dbtp, lsnp, op, info)
- DB_ENV *dbenv;
- DBT *dbtp;
- DB_LSN *lsnp;
- db_recops op;
- void *info;
- {
- __db_noop_args *argp;
- DB *file_dbp;
- DBC *dbc;
- DB_MPOOLFILE *mpf;
- PAGE *pagep;
- int cmp_n, cmp_p, modified, ret;
- REC_PRINT(__db_noop_print);
- REC_INTRO(__db_noop_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;
- }