#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; }