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67 lines
2.4 KiB
C
67 lines
2.4 KiB
C
/* ndbm.h - The include file for ndbm users. */
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/* This file is part of GDBM, the GNU data base manager, by Philip A. Nelson.
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Copyright (C) 1990-2011, 2017-2018 Free Software Foundation, Inc.
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GDBM is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GDBM is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GDBM. If not, see <http://www.gnu.org/licenses/>.
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You may contact the author by:
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e-mail: phil@cs.wwu.edu
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us-mail: Philip A. Nelson
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Computer Science Department
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Western Washington University
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Bellingham, WA 98226
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*************************************************************************/
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#include <gdbm.h>
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/* Parameters to dbm_store for simple insertion or replacement. */
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#define DBM_INSERT GDBM_INSERT
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#define DBM_REPLACE GDBM_REPLACE
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/* The file information header. */
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typedef struct
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{
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GDBM_FILE file; /* Actual gdbm file (held in the .pag file */
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int dirfd; /* Descriptor of the .dir file */
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datum _dbm_memory; /* Keeps the last returned key */
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char *_dbm_fetch_val; /* Keeps the dptr of the last fetched datum */
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gdbm_error _dbm_errno; /* Error code from the last failed call */
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} DBM;
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/* Used internally by the library */
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#define __gdbm_error_to_ndbm(dbm) \
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do \
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{ \
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if (gdbm_errno && gdbm_errno != GDBM_ITEM_NOT_FOUND) \
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(dbm)->_dbm_errno = gdbm_errno; \
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} \
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while (0)
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/* These are the routines */
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extern DBM *dbm_open (char *file, int flags, int mode);
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extern void dbm_close (DBM *dbf);
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extern datum dbm_fetch (DBM *dbf, datum key);
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extern int dbm_store (DBM *dbf, datum key, datum content, int flags);
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extern int dbm_delete (DBM *dbf, datum key);
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extern datum dbm_firstkey (DBM *dbf);
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extern datum dbm_nextkey (DBM *dbf);
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extern int dbm_error (DBM *dbf);
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extern void dbm_clearerr (DBM *dbf);
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extern int dbm_dirfno (DBM *dbf);
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extern int dbm_pagfno (DBM *dbf);
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extern int dbm_rdonly (DBM *dbf);
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