cxx_dbc.cpp
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上传日期:2022-05-23
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文件大小:3k
- /*-
- * See the file LICENSE for redistribution information.
- *
- * Copyright (c) 1997-2002
- * Sleepycat Software. All rights reserved.
- */
- #include "db_config.h"
- #ifndef lint
- static const char revid[] = "$Id: cxx_dbc.cpp,v 11.55 2002/07/03 21:03:52 bostic Exp $";
- #endif /* not lint */
- #include <errno.h>
- #include <string.h>
- #include "db_cxx.h"
- #include "dbinc/cxx_int.h"
- #include "db_int.h"
- #include "dbinc/db_page.h"
- #include "dbinc_auto/db_auto.h"
- #include "dbinc_auto/crdel_auto.h"
- #include "dbinc/db_dispatch.h"
- #include "dbinc_auto/db_ext.h"
- #include "dbinc_auto/common_ext.h"
- // Helper macro for simple methods that pass through to the
- // underlying C method. It may return an error or raise an exception.
- // Note this macro expects that input _argspec is an argument
- // list element (e.g., "char *arg") and that _arglist is the arguments
- // that should be passed through to the C method (e.g., "(db, arg)")
- //
- #define DBC_METHOD(_name, _argspec, _arglist, _retok)
- int Dbc::_name _argspec
- {
- int ret;
- DBC *dbc = this;
-
- ret = dbc->c_##_name _arglist;
- if (!_retok(ret))
- DB_ERROR("Dbc::" # _name, ret, ON_ERROR_UNKNOWN);
- return (ret);
- }
- // It's private, and should never be called, but VC4.0 needs it resolved
- //
- Dbc::~Dbc()
- {
- }
- DBC_METHOD(close, (void), (dbc), DB_RETOK_STD)
- DBC_METHOD(count, (db_recno_t *countp, u_int32_t _flags),
- (dbc, countp, _flags), DB_RETOK_STD)
- DBC_METHOD(del, (u_int32_t _flags),
- (dbc, _flags), DB_RETOK_DBCDEL)
- int Dbc::dup(Dbc** cursorp, u_int32_t _flags)
- {
- int ret;
- DBC *dbc = this;
- DBC *new_cursor = 0;
- ret = dbc->c_dup(dbc, &new_cursor, _flags);
- if (DB_RETOK_STD(ret))
- // The following cast implies that Dbc can be no larger than DBC
- *cursorp = (Dbc*)new_cursor;
- else
- DB_ERROR("Dbc::dup", ret, ON_ERROR_UNKNOWN);
- return (ret);
- }
- int Dbc::get(Dbt* key, Dbt *data, u_int32_t _flags)
- {
- int ret;
- DBC *dbc = this;
- ret = dbc->c_get(dbc, key, data, _flags);
- if (!DB_RETOK_DBCGET(ret)) {
- if (ret == ENOMEM && DB_OVERFLOWED_DBT(key))
- DB_ERROR_DBT("Dbc::get", key, ON_ERROR_UNKNOWN);
- else if (ret == ENOMEM && DB_OVERFLOWED_DBT(data))
- DB_ERROR_DBT("Dbc::get", data, ON_ERROR_UNKNOWN);
- else
- DB_ERROR("Dbc::get", ret, ON_ERROR_UNKNOWN);
- }
- return (ret);
- }
- int Dbc::pget(Dbt* key, Dbt *pkey, Dbt *data, u_int32_t _flags)
- {
- int ret;
- DBC *dbc = this;
- ret = dbc->c_pget(dbc, key, pkey, data, _flags);
- /* Logic is the same as for Dbc::get - reusing macro. */
- if (!DB_RETOK_DBCGET(ret)) {
- if (ret == ENOMEM && DB_OVERFLOWED_DBT(key))
- DB_ERROR_DBT("Dbc::pget", key, ON_ERROR_UNKNOWN);
- else if (ret == ENOMEM && DB_OVERFLOWED_DBT(data))
- DB_ERROR_DBT("Dbc::pget", data, ON_ERROR_UNKNOWN);
- else
- DB_ERROR("Dbc::pget", ret, ON_ERROR_UNKNOWN);
- }
- return (ret);
- }
- DBC_METHOD(put, (Dbt* key, Dbt *data, u_int32_t _flags),
- (dbc, key, data, _flags), DB_RETOK_DBCPUT)