gecko-dev/db/libdb_java/java_DbLockTab.cpp
1998-10-15 03:56:37 +00:00

131 lines
3.7 KiB
C++

/*-
* See the file LICENSE for redistribution information.
*
* Copyright (c) 1997, 1998
* Sleepycat Software. All rights reserved.
*/
#include "config.h"
#ifndef lint
static const char sccsid[] = "@(#)java_DbLockTab.cpp 10.3 (Sleepycat) 4/10/98";
#endif /* not lint */
#include <jni.h>
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include "db.h"
#include "java_util.h"
#include "com_sleepycat_db_DbLockTab.h"
JNIEXPORT void JNICALL Java_com_sleepycat_db_DbLockTab_close
(JNIEnv *jnienv, /*DbLocktab*/ jobject jthis)
{
int err;
DB_LOCKTAB *dblocktab = get_DB_LOCKTAB(jnienv, jthis);
if (!verify_non_null(jnienv, dblocktab))
return;
err = lock_close(dblocktab);
if (verify_return(jnienv, err))
{
set_private_info(jnienv, name_DB_LOCKTAB, jthis, 0);
}
}
JNIEXPORT void JNICALL Java_com_sleepycat_db_DbLockTab_detect
(JNIEnv *jnienv, jobject jthis, jint atype, jint flags)
{
int err;
DB_LOCKTAB *dblocktab = get_DB_LOCKTAB(jnienv, jthis);
if (!verify_non_null(jnienv, dblocktab))
return;
err = lock_detect(dblocktab, atype, flags);
verify_return(jnienv, err);
}
JNIEXPORT /*DbLock*/ jobject JNICALL Java_com_sleepycat_db_DbLockTab_get
(JNIEnv *jnienv, jobject jthis, /*u_int32_t*/ jint locker,
jint flags, /*const Dbt*/ jobject obj, /*db_lockmode_t*/ jint lock_mode)
{
int err;
DB_LOCKTAB *dblocktab = get_DB_LOCKTAB(jnienv, jthis);
DB_LOCK dblock;
LockedDBT dbobj(jnienv, obj, 0);
if (dbobj.has_error())
return 0;
/*DbLock*/ jobject retval = NULL;
if (!verify_non_null(jnienv, dblocktab))
return retval;
err = lock_get(dblocktab, locker, flags, dbobj.dbt,
(db_lockmode_t)lock_mode, &dblock);
if (verify_return(jnienv, err)) {
retval = create_default_object(jnienv, name_DB_LOCK);
set_private_long_info(jnienv, name_DB_LOCK, retval, dblock);
}
return retval;
}
JNIEXPORT jint JNICALL Java_com_sleepycat_db_DbLockTab_id
(JNIEnv *jnienv, jobject jthis)
{
int err;
DB_LOCKTAB *dblocktab = get_DB_LOCKTAB(jnienv, jthis);
if (!verify_non_null(jnienv, dblocktab))
return -1;
u_int32_t id;
err = lock_id(dblocktab, &id);
verify_return(jnienv, err);
return id;
}
JNIEXPORT jobject JNICALL Java_com_sleepycat_db_DbLockTab_open
(JNIEnv *jnienv, jclass jthis_class, jstring dir, jint flags,
jint mode, /*DbEnv*/ jobject dbenv)
{
int err;
jobject retval = NULL;
DB_LOCKTAB *dblocktab;
DB_ENV *db_dbenv = get_DB_ENV(jnienv, dbenv);
LockedString dbdir(jnienv, dir);
if (verify_non_null(jnienv, db_dbenv)) {
err = lock_open(dbdir.string, flags, mode,
db_dbenv, &dblocktab);
if (verify_return(jnienv, err)) {
retval = create_default_object(jnienv, name_DB_LOCKTAB);
set_private_info(jnienv, name_DB_LOCKTAB, retval, dblocktab);
}
}
return retval;
}
JNIEXPORT void JNICALL Java_com_sleepycat_db_DbLockTab_unlink
(JNIEnv *jnienv, jclass jthis_class, jstring dir, jint force,
/*DbEnv*/ jobject dbenv)
{
int err;
DB_ENV *db_dbenv = get_DB_ENV(jnienv, dbenv);
LockedString dbdir(jnienv, dir);
if (verify_non_null(jnienv, db_dbenv)) {
err = lock_unlink(dbdir.string, force, db_dbenv);
verify_return(jnienv, err);
}
}
JNIEXPORT void JNICALL Java_com_sleepycat_db_DbLockTab_finalize
(JNIEnv *jnienv, jobject jthis)
{
DB_LOCKTAB *dblocktab = get_DB_LOCKTAB(jnienv, jthis);
if (dblocktab) {
// Free any data related to DB_LOCKTAB here.
// Unfortunately, we cannot really autoclose because
// finalize is not called in any particular order
}
}