1/*- 2 * See the file LICENSE for redistribution information. 3 * 4 * Copyright (c) 1997,2008 Oracle. All rights reserved. 5 * 6 * $Id: cxx_dbc.cpp,v 12.12 2008/01/08 20:58:09 bostic Exp $ 7 */ 8 9#include "db_config.h" 10 11#include "db_int.h" 12 13#include "db_cxx.h" 14#include "dbinc/cxx_int.h" 15 16#include "dbinc/db_page.h" 17#include "dbinc_auto/db_auto.h" 18#include "dbinc_auto/crdel_auto.h" 19#include "dbinc/db_dispatch.h" 20#include "dbinc_auto/db_ext.h" 21#include "dbinc_auto/common_ext.h" 22 23// Helper macro for simple methods that pass through to the 24// underlying C method. It may return an error or raise an exception. 25// Note this macro expects that input _argspec is an argument 26// list element (e.g., "char *arg") and that _arglist is the arguments 27// that should be passed through to the C method (e.g., "(db, arg)") 28// 29#define DBC_METHOD(_name, _argspec, _arglist, _retok) \ 30int Dbc::_name _argspec \ 31{ \ 32 int ret; \ 33 DBC *dbc = this; \ 34 \ 35 ret = dbc->_name _arglist; \ 36 if (!_retok(ret)) \ 37 DB_ERROR(DbEnv::get_DbEnv(dbc->dbenv), \ 38 "Dbc::" # _name, ret, ON_ERROR_UNKNOWN); \ 39 return (ret); \ 40} 41 42// It's private, and should never be called, but VC4.0 needs it resolved 43// 44Dbc::~Dbc() 45{ 46} 47 48DBC_METHOD(close, (void), (dbc), DB_RETOK_STD) 49DBC_METHOD(count, (db_recno_t *countp, u_int32_t _flags), 50 (dbc, countp, _flags), DB_RETOK_STD) 51DBC_METHOD(del, (u_int32_t _flags), 52 (dbc, _flags), DB_RETOK_DBCDEL) 53 54int Dbc::dup(Dbc** cursorp, u_int32_t _flags) 55{ 56 int ret; 57 DBC *dbc = this; 58 DBC *new_cursor = 0; 59 60 ret = dbc->dup(dbc, &new_cursor, _flags); 61 62 if (DB_RETOK_STD(ret)) 63 // The following cast implies that Dbc can be no larger than DBC 64 *cursorp = (Dbc*)new_cursor; 65 else 66 DB_ERROR(DbEnv::get_DbEnv(dbc->dbenv), 67 "Dbc::dup", ret, ON_ERROR_UNKNOWN); 68 69 return (ret); 70} 71 72int Dbc::get(Dbt* key, Dbt *data, u_int32_t _flags) 73{ 74 int ret; 75 DBC *dbc = this; 76 77 ret = dbc->get(dbc, key, data, _flags); 78 79 if (!DB_RETOK_DBCGET(ret)) { 80 if (ret == DB_BUFFER_SMALL && DB_OVERFLOWED_DBT(key)) 81 DB_ERROR_DBT(DbEnv::get_DbEnv(dbc->dbenv), 82 "Dbc::get", key, ON_ERROR_UNKNOWN); 83 else if (ret == DB_BUFFER_SMALL && DB_OVERFLOWED_DBT(data)) 84 DB_ERROR_DBT(DbEnv::get_DbEnv(dbc->dbenv), 85 "Dbc::get", data, ON_ERROR_UNKNOWN); 86 else 87 DB_ERROR(DbEnv::get_DbEnv(dbc->dbenv), 88 "Dbc::get", ret, ON_ERROR_UNKNOWN); 89 } 90 91 return (ret); 92} 93 94int Dbc::pget(Dbt* key, Dbt *pkey, Dbt *data, u_int32_t _flags) 95{ 96 int ret; 97 DBC *dbc = this; 98 99 ret = dbc->pget(dbc, key, pkey, data, _flags); 100 101 /* Logic is the same as for Dbc::get - reusing macro. */ 102 if (!DB_RETOK_DBCGET(ret)) { 103 if (ret == DB_BUFFER_SMALL && DB_OVERFLOWED_DBT(key)) 104 DB_ERROR_DBT(DbEnv::get_DbEnv(dbc->dbenv), 105 "Dbc::pget", key, ON_ERROR_UNKNOWN); 106 else if (ret == DB_BUFFER_SMALL && DB_OVERFLOWED_DBT(data)) 107 DB_ERROR_DBT(DbEnv::get_DbEnv(dbc->dbenv), 108 "Dbc::pget", data, ON_ERROR_UNKNOWN); 109 else 110 DB_ERROR(DbEnv::get_DbEnv(dbc->dbenv), 111 "Dbc::pget", ret, ON_ERROR_UNKNOWN); 112 } 113 114 return (ret); 115} 116 117DBC_METHOD(put, (Dbt* key, Dbt *data, u_int32_t _flags), 118 (dbc, key, data, _flags), DB_RETOK_DBCPUT) 119DBC_METHOD(get_priority, (DB_CACHE_PRIORITY *priorityp), 120 (dbc, priorityp), DB_RETOK_STD) 121DBC_METHOD(set_priority, (DB_CACHE_PRIORITY pri), (dbc, pri), DB_RETOK_STD) 122