rec_qam
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 "qam.h"
- #include "log.h"
- /*
- * __qam_inc_recover --
- * Recovery function for inc.
- *
- * PUBLIC: int __qam_inc_recover
- * PUBLIC: __P((DB_ENV *, DBT *, DB_LSN *, db_recops, void *));
- */
- int
- __qam_inc_recover(dbenv, dbtp, lsnp, op, info)
- DB_ENV *dbenv;
- DBT *dbtp;
- DB_LSN *lsnp;
- db_recops op;
- void *info;
- {
- __qam_inc_args *argp;
- DB *file_dbp;
- DBC *dbc;
- DB_MPOOLFILE *mpf;
- PAGE *pagep;
- int cmp_n, cmp_p, modified, ret;
- REC_PRINT(__qam_inc_print);
- REC_INTRO(__qam_inc_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;
- }
- /*
- * __qam_incfirst_recover --
- * Recovery function for incfirst.
- *
- * PUBLIC: int __qam_incfirst_recover
- * PUBLIC: __P((DB_ENV *, DBT *, DB_LSN *, db_recops, void *));
- */
- 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_MPOOLFILE *mpf;
- PAGE *pagep;
- int cmp_n, cmp_p, modified, ret;
- REC_PRINT(__qam_incfirst_print);
- REC_INTRO(__qam_incfirst_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;
- }
- /*
- * __qam_mvptr_recover --
- * Recovery function for mvptr.
- *
- * PUBLIC: int __qam_mvptr_recover
- * PUBLIC: __P((DB_ENV *, DBT *, DB_LSN *, db_recops, void *));
- */
- 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_MPOOLFILE *mpf;
- PAGE *pagep;
- int cmp_n, cmp_p, modified, ret;
- REC_PRINT(__qam_mvptr_print);
- REC_INTRO(__qam_mvptr_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;
- }
- /*
- * __qam_del_recover --
- * Recovery function for del.
- *
- * PUBLIC: int __qam_del_recover
- * PUBLIC: __P((DB_ENV *, DBT *, DB_LSN *, db_recops, void *));
- */
- 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_MPOOLFILE *mpf;
- PAGE *pagep;
- int cmp_n, cmp_p, modified, ret;
- REC_PRINT(__qam_del_print);
- REC_INTRO(__qam_del_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;
- }
- /*
- * __qam_add_recover --
- * Recovery function for add.
- *
- * PUBLIC: int __qam_add_recover
- * PUBLIC: __P((DB_ENV *, DBT *, DB_LSN *, db_recops, void *));
- */
- 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;
- PAGE *pagep;
- int cmp_n, cmp_p, modified, ret;
- REC_PRINT(__qam_add_print);
- REC_INTRO(__qam_add_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;
- }
- /*
- * __qam_delete_recover --
- * Recovery function for delete.
- *
- * PUBLIC: int __qam_delete_recover
- * PUBLIC: __P((DB_ENV *, DBT *, DB_LSN *, db_recops, void *));
- */
- int
- __qam_delete_recover(dbenv, dbtp, lsnp, op, info)
- DB_ENV *dbenv;
- DBT *dbtp;
- DB_LSN *lsnp;
- db_recops op;
- void *info;
- {
- __qam_delete_args *argp;
- DB *file_dbp;
- DBC *dbc;
- DB_MPOOLFILE *mpf;
- PAGE *pagep;
- int cmp_n, cmp_p, modified, ret;
- REC_PRINT(__qam_delete_print);
- REC_INTRO(__qam_delete_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;
- }
- /*
- * __qam_rename_recover --
- * Recovery function for rename.
- *
- * PUBLIC: int __qam_rename_recover
- * PUBLIC: __P((DB_ENV *, DBT *, DB_LSN *, db_recops, void *));
- */
- int
- __qam_rename_recover(dbenv, dbtp, lsnp, op, info)
- DB_ENV *dbenv;
- DBT *dbtp;
- DB_LSN *lsnp;
- db_recops op;
- void *info;
- {
- __qam_rename_args *argp;
- DB *file_dbp;
- DBC *dbc;
- DB_MPOOLFILE *mpf;
- PAGE *pagep;
- int cmp_n, cmp_p, modified, ret;
- REC_PRINT(__qam_rename_print);
- REC_INTRO(__qam_rename_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;
- }
- /*
- * __qam_delext_recover --
- * Recovery function for delext.
- *
- * PUBLIC: int __qam_delext_recover
- * PUBLIC: __P((DB_ENV *, DBT *, DB_LSN *, db_recops, void *));
- */
- 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_MPOOLFILE *mpf;
- PAGE *pagep;
- int cmp_n, cmp_p, modified, ret;
- REC_PRINT(__qam_delext_print);
- REC_INTRO(__qam_delext_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;
- }