#include "db_config.h" #include "db_int.h" #include "dbinc/db_page.h" #include "dbinc/__fop.h" #include "dbinc/log.h" /* * __fop_create_recover -- * Recovery function for create. * * PUBLIC: int __fop_create_recover * PUBLIC: __P((env *, DBT *, DB_LSN *, db_recops, void *)); */ int __fop_create_recover(env, dbtp, lsnp, op, info) env *env; DBT *dbtp; DB_LSN *lsnp; db_recops op; void *info; { __fop_create_args *argp; DB *file_dbp; DBC *dbc; DB_MPOOLFILE *mpf; DB_THREAD_INFO *ip; PAGE *pagep; int cmp_n, cmp_p, modified, ret; ip = ((DB_TXNHEAD *)info)->thread_info; REC_PRINT(__fop_create_print); REC_INTRO(__fop_create_read, ip, 0); if ((ret = mpf->get(mpf, &argp->pgno, 0, &pagep)) != 0) if (DB_REDO(op)) { if ((ret = mpf->get(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 = mpf->put(mpf, pagep, modified ? DB_MPOOL_DIRTY : 0)) goto out; *lsnp = argp->prev_lsn; ret = 0; out: REC_CLOSE; } /* * __fop_create_recover -- * Recovery function for create. * * PUBLIC: int __fop_create_recover * PUBLIC: __P((env *, DBT *, DB_LSN *, db_recops, void *)); */ int __fop_create_recover(env, dbtp, lsnp, op, info) env *env; DBT *dbtp; DB_LSN *lsnp; db_recops op; void *info; { __fop_create_args *argp; DB *file_dbp; DBC *dbc; DB_MPOOLFILE *mpf; DB_THREAD_INFO *ip; PAGE *pagep; int cmp_n, cmp_p, modified, ret; ip = ((DB_TXNHEAD *)info)->thread_info; REC_PRINT(__fop_create_print); REC_INTRO(__fop_create_read, ip, 0); if ((ret = mpf->get(mpf, &argp->pgno, 0, &pagep)) != 0) if (DB_REDO(op)) { if ((ret = mpf->get(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 = mpf->put(mpf, pagep, modified ? DB_MPOOL_DIRTY : 0)) goto out; *lsnp = argp->prev_lsn; ret = 0; out: REC_CLOSE; } /* * __fop_create_recover -- * Recovery function for create. * * PUBLIC: int __fop_create_recover * PUBLIC: __P((env *, DBT *, DB_LSN *, db_recops, void *)); */ int __fop_create_recover(env, dbtp, lsnp, op, info) env *env; DBT *dbtp; DB_LSN *lsnp; db_recops op; void *info; { __fop_create_args *argp; DB *file_dbp; DBC *dbc; DB_MPOOLFILE *mpf; DB_THREAD_INFO *ip; PAGE *pagep; int cmp_n, cmp_p, modified, ret; ip = ((DB_TXNHEAD *)info)->thread_info; REC_PRINT(__fop_create_print); REC_INTRO(__fop_create_read, ip, 0); if ((ret = mpf->get(mpf, &argp->pgno, 0, &pagep)) != 0) if (DB_REDO(op)) { if ((ret = mpf->get(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 = mpf->put(mpf, pagep, modified ? DB_MPOOL_DIRTY : 0)) goto out; *lsnp = argp->prev_lsn; ret = 0; out: REC_CLOSE; } /* * __fop_remove_recover -- * Recovery function for remove. * * PUBLIC: int __fop_remove_recover * PUBLIC: __P((env *, DBT *, DB_LSN *, db_recops, void *)); */ int __fop_remove_recover(env, dbtp, lsnp, op, info) env *env; DBT *dbtp; DB_LSN *lsnp; db_recops op; void *info; { __fop_remove_args *argp; DB *file_dbp; DBC *dbc; DB_MPOOLFILE *mpf; DB_THREAD_INFO *ip; PAGE *pagep; int cmp_n, cmp_p, modified, ret; ip = ((DB_TXNHEAD *)info)->thread_info; REC_PRINT(__fop_remove_print); REC_INTRO(__fop_remove_read, ip, 0); if ((ret = mpf->get(mpf, &argp->pgno, 0, &pagep)) != 0) if (DB_REDO(op)) { if ((ret = mpf->get(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 = mpf->put(mpf, pagep, modified ? DB_MPOOL_DIRTY : 0)) goto out; *lsnp = argp->prev_lsn; ret = 0; out: REC_CLOSE; } /* * __fop_remove_recover -- * Recovery function for remove. * * PUBLIC: int __fop_remove_recover * PUBLIC: __P((env *, DBT *, DB_LSN *, db_recops, void *)); */ int __fop_remove_recover(env, dbtp, lsnp, op, info) env *env; DBT *dbtp; DB_LSN *lsnp; db_recops op; void *info; { __fop_remove_args *argp; DB *file_dbp; DBC *dbc; DB_MPOOLFILE *mpf; DB_THREAD_INFO *ip; PAGE *pagep; int cmp_n, cmp_p, modified, ret; ip = ((DB_TXNHEAD *)info)->thread_info; REC_PRINT(__fop_remove_print); REC_INTRO(__fop_remove_read, ip, 0); if ((ret = mpf->get(mpf, &argp->pgno, 0, &pagep)) != 0) if (DB_REDO(op)) { if ((ret = mpf->get(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 = mpf->put(mpf, pagep, modified ? DB_MPOOL_DIRTY : 0)) goto out; *lsnp = argp->prev_lsn; ret = 0; out: REC_CLOSE; } /* * __fop_write_recover -- * Recovery function for write. * * PUBLIC: int __fop_write_recover * PUBLIC: __P((env *, DBT *, DB_LSN *, db_recops, void *)); */ int __fop_write_recover(env, dbtp, lsnp, op, info) env *env; DBT *dbtp; DB_LSN *lsnp; db_recops op; void *info; { __fop_write_args *argp; DB *file_dbp; DBC *dbc; DB_MPOOLFILE *mpf; DB_THREAD_INFO *ip; PAGE *pagep; int cmp_n, cmp_p, modified, ret; ip = ((DB_TXNHEAD *)info)->thread_info; REC_PRINT(__fop_write_print); REC_INTRO(__fop_write_read, ip, 0); if ((ret = mpf->get(mpf, &argp->pgno, 0, &pagep)) != 0) if (DB_REDO(op)) { if ((ret = mpf->get(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 = mpf->put(mpf, pagep, modified ? DB_MPOOL_DIRTY : 0)) goto out; *lsnp = argp->prev_lsn; ret = 0; out: REC_CLOSE; } /* * __fop_write_recover -- * Recovery function for write. * * PUBLIC: int __fop_write_recover * PUBLIC: __P((env *, DBT *, DB_LSN *, db_recops, void *)); */ int __fop_write_recover(env, dbtp, lsnp, op, info) env *env; DBT *dbtp; DB_LSN *lsnp; db_recops op; void *info; { __fop_write_args *argp; DB *file_dbp; DBC *dbc; DB_MPOOLFILE *mpf; DB_THREAD_INFO *ip; PAGE *pagep; int cmp_n, cmp_p, modified, ret; ip = ((DB_TXNHEAD *)info)->thread_info; REC_PRINT(__fop_write_print); REC_INTRO(__fop_write_read, ip, 0); if ((ret = mpf->get(mpf, &argp->pgno, 0, &pagep)) != 0) if (DB_REDO(op)) { if ((ret = mpf->get(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 = mpf->put(mpf, pagep, modified ? DB_MPOOL_DIRTY : 0)) goto out; *lsnp = argp->prev_lsn; ret = 0; out: REC_CLOSE; } /* * __fop_write_recover -- * Recovery function for write. * * PUBLIC: int __fop_write_recover * PUBLIC: __P((env *, DBT *, DB_LSN *, db_recops, void *)); */ int __fop_write_recover(env, dbtp, lsnp, op, info) env *env; DBT *dbtp; DB_LSN *lsnp; db_recops op; void *info; { __fop_write_args *argp; DB *file_dbp; DBC *dbc; DB_MPOOLFILE *mpf; DB_THREAD_INFO *ip; PAGE *pagep; int cmp_n, cmp_p, modified, ret; ip = ((DB_TXNHEAD *)info)->thread_info; REC_PRINT(__fop_write_print); REC_INTRO(__fop_write_read, ip, 0); if ((ret = mpf->get(mpf, &argp->pgno, 0, &pagep)) != 0) if (DB_REDO(op)) { if ((ret = mpf->get(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 = mpf->put(mpf, pagep, modified ? DB_MPOOL_DIRTY : 0)) goto out; *lsnp = argp->prev_lsn; ret = 0; out: REC_CLOSE; } /* * __fop_write_file_recover -- * Recovery function for write_file. * * PUBLIC: int __fop_write_file_recover * PUBLIC: __P((env *, DBT *, DB_LSN *, db_recops, void *)); */ int __fop_write_file_recover(env, dbtp, lsnp, op, info) env *env; DBT *dbtp; DB_LSN *lsnp; db_recops op; void *info; { __fop_write_file_args *argp; DB *file_dbp; DBC *dbc; DB_MPOOLFILE *mpf; DB_THREAD_INFO *ip; PAGE *pagep; int cmp_n, cmp_p, modified, ret; ip = ((DB_TXNHEAD *)info)->thread_info; REC_PRINT(__fop_write_file_print); REC_INTRO(__fop_write_file_read, ip, 0); if ((ret = mpf->get(mpf, &argp->pgno, 0, &pagep)) != 0) if (DB_REDO(op)) { if ((ret = mpf->get(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 = mpf->put(mpf, pagep, modified ? DB_MPOOL_DIRTY : 0)) goto out; *lsnp = argp->prev_lsn; ret = 0; out: REC_CLOSE; } /* * __fop_write_file_recover -- * Recovery function for write_file. * * PUBLIC: int __fop_write_file_recover * PUBLIC: __P((env *, DBT *, DB_LSN *, db_recops, void *)); */ int __fop_write_file_recover(env, dbtp, lsnp, op, info) env *env; DBT *dbtp; DB_LSN *lsnp; db_recops op; void *info; { __fop_write_file_args *argp; DB *file_dbp; DBC *dbc; DB_MPOOLFILE *mpf; DB_THREAD_INFO *ip; PAGE *pagep; int cmp_n, cmp_p, modified, ret; ip = ((DB_TXNHEAD *)info)->thread_info; REC_PRINT(__fop_write_file_print); REC_INTRO(__fop_write_file_read, ip, 0); if ((ret = mpf->get(mpf, &argp->pgno, 0, &pagep)) != 0) if (DB_REDO(op)) { if ((ret = mpf->get(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 = mpf->put(mpf, pagep, modified ? DB_MPOOL_DIRTY : 0)) goto out; *lsnp = argp->prev_lsn; ret = 0; out: REC_CLOSE; } /* * __fop_rename_recover -- * Recovery function for rename. * * PUBLIC: int __fop_rename_recover * PUBLIC: __P((env *, DBT *, DB_LSN *, db_recops, void *)); */ int __fop_rename_recover(env, dbtp, lsnp, op, info) env *env; DBT *dbtp; DB_LSN *lsnp; db_recops op; void *info; { __fop_rename_noundo_args *argp; DB *file_dbp; DBC *dbc; DB_MPOOLFILE *mpf; DB_THREAD_INFO *ip; PAGE *pagep; int cmp_n, cmp_p, modified, ret; ip = ((DB_TXNHEAD *)info)->thread_info; REC_PRINT(__fop_rename_noundo_print); REC_INTRO(__fop_rename_noundo_read, ip, 0); if ((ret = mpf->get(mpf, &argp->pgno, 0, &pagep)) != 0) if (DB_REDO(op)) { if ((ret = mpf->get(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 = mpf->put(mpf, pagep, modified ? DB_MPOOL_DIRTY : 0)) goto out; *lsnp = argp->prev_lsn; ret = 0; out: REC_CLOSE; } /* * __fop_rename_recover -- * Recovery function for rename. * * PUBLIC: int __fop_rename_recover * PUBLIC: __P((env *, DBT *, DB_LSN *, db_recops, void *)); */ int __fop_rename_recover(env, dbtp, lsnp, op, info) env *env; DBT *dbtp; DB_LSN *lsnp; db_recops op; void *info; { __fop_rename_noundo_args *argp; DB *file_dbp; DBC *dbc; DB_MPOOLFILE *mpf; DB_THREAD_INFO *ip; PAGE *pagep; int cmp_n, cmp_p, modified, ret; ip = ((DB_TXNHEAD *)info)->thread_info; REC_PRINT(__fop_rename_noundo_print); REC_INTRO(__fop_rename_noundo_read, ip, 0); if ((ret = mpf->get(mpf, &argp->pgno, 0, &pagep)) != 0) if (DB_REDO(op)) { if ((ret = mpf->get(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 = mpf->put(mpf, pagep, modified ? DB_MPOOL_DIRTY : 0)) goto out; *lsnp = argp->prev_lsn; ret = 0; out: REC_CLOSE; } /* * __fop_rename_recover -- * Recovery function for rename. * * PUBLIC: int __fop_rename_recover * PUBLIC: __P((env *, DBT *, DB_LSN *, db_recops, void *)); */ int __fop_rename_recover(env, dbtp, lsnp, op, info) env *env; DBT *dbtp; DB_LSN *lsnp; db_recops op; void *info; { __fop_rename_noundo_args *argp; DB *file_dbp; DBC *dbc; DB_MPOOLFILE *mpf; DB_THREAD_INFO *ip; PAGE *pagep; int cmp_n, cmp_p, modified, ret; ip = ((DB_TXNHEAD *)info)->thread_info; REC_PRINT(__fop_rename_noundo_print); REC_INTRO(__fop_rename_noundo_read, ip, 0); if ((ret = mpf->get(mpf, &argp->pgno, 0, &pagep)) != 0) if (DB_REDO(op)) { if ((ret = mpf->get(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 = mpf->put(mpf, pagep, modified ? DB_MPOOL_DIRTY : 0)) goto out; *lsnp = argp->prev_lsn; ret = 0; out: REC_CLOSE; } /* * __fop_file_remove_recover -- * Recovery function for file_remove. * * PUBLIC: int __fop_file_remove_recover * PUBLIC: __P((env *, DBT *, DB_LSN *, db_recops, void *)); */ int __fop_file_remove_recover(env, dbtp, lsnp, op, info) env *env; DBT *dbtp; DB_LSN *lsnp; db_recops op; void *info; { __fop_file_remove_args *argp; DB *file_dbp; DBC *dbc; DB_MPOOLFILE *mpf; DB_THREAD_INFO *ip; PAGE *pagep; int cmp_n, cmp_p, modified, ret; ip = ((DB_TXNHEAD *)info)->thread_info; REC_PRINT(__fop_file_remove_print); REC_INTRO(__fop_file_remove_read, ip, 0); if ((ret = mpf->get(mpf, &argp->pgno, 0, &pagep)) != 0) if (DB_REDO(op)) { if ((ret = mpf->get(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 = mpf->put(mpf, pagep, modified ? DB_MPOOL_DIRTY : 0)) goto out; *lsnp = argp->prev_lsn; ret = 0; out: REC_CLOSE; } /* * __fop_file_remove_recover -- * Recovery function for file_remove. * * PUBLIC: int __fop_file_remove_recover * PUBLIC: __P((env *, DBT *, DB_LSN *, db_recops, void *)); */ int __fop_file_remove_recover(env, dbtp, lsnp, op, info) env *env; DBT *dbtp; DB_LSN *lsnp; db_recops op; void *info; { __fop_file_remove_args *argp; DB *file_dbp; DBC *dbc; DB_MPOOLFILE *mpf; DB_THREAD_INFO *ip; PAGE *pagep; int cmp_n, cmp_p, modified, ret; ip = ((DB_TXNHEAD *)info)->thread_info; REC_PRINT(__fop_file_remove_print); REC_INTRO(__fop_file_remove_read, ip, 0); if ((ret = mpf->get(mpf, &argp->pgno, 0, &pagep)) != 0) if (DB_REDO(op)) { if ((ret = mpf->get(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 = mpf->put(mpf, pagep, modified ? DB_MPOOL_DIRTY : 0)) goto out; *lsnp = argp->prev_lsn; ret = 0; out: REC_CLOSE; }