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201 lines
5.2 KiB
C++
201 lines
5.2 KiB
C++
/*-
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* See the file LICENSE for redistribution information.
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*
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* Copyright (c) 1997, 1998
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* Sleepycat Software. All rights reserved.
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*/
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#include "config.h"
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#ifndef lint
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static const char sccsid[] = "@(#)java_Db.cpp 10.4 (Sleepycat) 4/10/98";
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#endif /* not lint */
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#include <jni.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <string.h>
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#include "db.h"
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#include "java_util.h"
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#include "com_sleepycat_db_Db.h"
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JNIEXPORT void JNICALL Java_com_sleepycat_db_Db_close
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(JNIEnv *jnienv, /*Db*/ jobject jthis, jint flags)
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{
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int err;
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DB *db = get_DB(jnienv, jthis);
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if (!verify_non_null(jnienv, db))
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return;
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err = db->close(db, flags);
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if (verify_return(jnienv, err))
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{
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set_private_info(jnienv, name_DB, jthis, 0);
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}
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}
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JNIEXPORT jobject JNICALL Java_com_sleepycat_db_Db_cursor
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(JNIEnv *jnienv, /*Db*/ jobject jthis, /*DbTxn*/ jobject txnid)
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{
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int err;
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DB *db = get_DB(jnienv, jthis);
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DB_TXN *dbtxnid = get_DB_TXN(jnienv, txnid);
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if (!verify_non_null(jnienv, db))
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return NULL;
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DBC *dbc;
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err = db->cursor(db, dbtxnid, &dbc);
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verify_return(jnienv, err);
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return get_Dbc(jnienv, dbc);
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}
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JNIEXPORT void JNICALL Java_com_sleepycat_db_Db_del
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(JNIEnv *jnienv, /*Db*/ jobject jthis, /*DbTxn*/ jobject txnid,
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/*Dbt*/ jobject key, jint dbflags)
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{
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int err;
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DB *db = get_DB(jnienv, jthis);
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if (!verify_non_null(jnienv, db))
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return;
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DB_TXN *dbtxnid = get_DB_TXN(jnienv, txnid);
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LockedDBT dbkey(jnienv, key, 0);
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if (dbkey.has_error())
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return;
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err = db->del(db, dbtxnid, dbkey.dbt, dbflags);
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verify_return(jnienv, err);
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}
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JNIEXPORT jint JNICALL Java_com_sleepycat_db_Db_fd
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(JNIEnv *jnienv, /*Db*/ jobject jthis)
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{
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int err;
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int return_value = 0;
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DB *db = get_DB(jnienv, jthis);
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if (!verify_non_null(jnienv, db))
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return 0;
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err = db->fd(db, &return_value);
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verify_return(jnienv, err);
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return return_value;
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}
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JNIEXPORT jint JNICALL Java_com_sleepycat_db_Db_get
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(JNIEnv *jnienv, /*Db*/ jobject jthis, /*DbTxn*/ jobject txnid,
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/*Dbt*/ jobject key, /*Dbt*/ jobject data, jint flags)
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{
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int err;
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DB *db = get_DB(jnienv, jthis);
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DB_TXN *dbtxnid = get_DB_TXN(jnienv, txnid);
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LockedDBT dbkey(jnienv, key, 0);
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if (dbkey.has_error())
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return 0;
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LockedDBT dbdata(jnienv, data, 1);
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if (dbdata.has_error())
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return 0;
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if (!verify_non_null(jnienv, db))
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return 0;
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err = db->get(db, dbtxnid, dbkey.dbt, dbdata.dbt, flags);
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if (err != 0 && err != DB_NOTFOUND) {
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verify_return(jnienv, err);
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}
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return err;
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}
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JNIEXPORT jint JNICALL Java_com_sleepycat_db_Db_put
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(JNIEnv *jnienv, /*Db*/ jobject jthis, /*DbTxn*/ jobject txnid,
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/*Dbt*/ jobject key, /*Dbt*/ jobject data, jint flags)
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{
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int err;
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DB *db = get_DB(jnienv, jthis);
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DB_TXN *dbtxnid = get_DB_TXN(jnienv, txnid);
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LockedDBT dbkey(jnienv, key, 0);
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if (dbkey.has_error())
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return 0;
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LockedDBT dbdata(jnienv, data, 0);
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if (dbdata.has_error())
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return 0;
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if (!verify_non_null(jnienv, db))
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return 0;
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err = db->put(db, dbtxnid, dbkey.dbt, dbdata.dbt, flags);
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if (err != 0 && err != DB_KEYEXIST) {
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verify_return(jnienv, err);
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}
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return err;
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}
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JNIEXPORT jobject JNICALL Java_com_sleepycat_db_Db_stat
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(JNIEnv *jnienv, jobject jthis, jint flags)
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{
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int err;
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DB *db = get_DB(jnienv, jthis);
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DB_BTREE_STAT *statp = 0;
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if (!verify_non_null(jnienv, db))
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return 0;
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err = db->stat(db, &statp, 0, flags);
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verify_return(jnienv, err);
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return get_DbBtreeStat(jnienv, statp);
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}
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JNIEXPORT void JNICALL Java_com_sleepycat_db_Db_sync
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(JNIEnv *jnienv, /*Db*/ jobject jthis, jint flags)
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{
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int err;
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DB *db = get_DB(jnienv, jthis);
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if (!verify_non_null(jnienv, db))
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return;
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err = db->sync(db, flags);
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verify_return(jnienv, err);
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}
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JNIEXPORT jint JNICALL Java_com_sleepycat_db_Db_get_1type
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(JNIEnv *jnienv, /*Db*/ jobject jthis)
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{
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DB *db = get_DB(jnienv, jthis);
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if (!verify_non_null(jnienv, db))
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return 0;
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return (jint)db->type;
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}
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JNIEXPORT jobject JNICALL Java_com_sleepycat_db_Db_open
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(JNIEnv *jnienv, /*static Db*/ jclass /*jthis_class*/,
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jstring fname, jint type, jint flags, jint mode,
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/*DbEnv*/ jobject dbenv, /*DbInfo*/ jobject info)
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{
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int err;
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jobject retval = NULL;
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DB *db;
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DB_ENV *db_dbenv = get_DB_ENV(jnienv, dbenv);
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DB_INFO *dbinfo = get_DB_INFO(jnienv, info);
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LockedString dbfname(jnienv, fname);
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if (verify_non_null(jnienv, db_dbenv)) {
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flags |= DB_THREAD;
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err = db_open(dbfname.string, (DBTYPE)type, flags, mode,
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db_dbenv, dbinfo, &db);
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if (verify_return(jnienv, err)) {
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db->db_malloc = java_db_malloc;
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retval = create_default_object(jnienv, name_DB);
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set_private_info(jnienv, name_DB, retval, db);
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}
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}
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return retval;
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}
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JNIEXPORT void JNICALL Java_com_sleepycat_db_Db_finalize
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(JNIEnv *jnienv, jobject jthis)
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{
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DB *db = get_DB(jnienv, jthis);
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if (db) {
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// Free any info related to DB here.
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// Unfortunately, we cannot really autoclose because
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// finalize is not called in any particular order
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}
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}
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