зеркало из https://github.com/mozilla/gecko-dev.git
131 строка
3.7 KiB
C++
131 строка
3.7 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_DbLockTab.cpp 10.3 (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_DbLockTab.h"
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JNIEXPORT void JNICALL Java_com_sleepycat_db_DbLockTab_close
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(JNIEnv *jnienv, /*DbLocktab*/ jobject jthis)
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{
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int err;
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DB_LOCKTAB *dblocktab = get_DB_LOCKTAB(jnienv, jthis);
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if (!verify_non_null(jnienv, dblocktab))
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return;
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err = lock_close(dblocktab);
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if (verify_return(jnienv, err))
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{
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set_private_info(jnienv, name_DB_LOCKTAB, jthis, 0);
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}
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}
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JNIEXPORT void JNICALL Java_com_sleepycat_db_DbLockTab_detect
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(JNIEnv *jnienv, jobject jthis, jint atype, jint flags)
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{
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int err;
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DB_LOCKTAB *dblocktab = get_DB_LOCKTAB(jnienv, jthis);
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if (!verify_non_null(jnienv, dblocktab))
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return;
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err = lock_detect(dblocktab, atype, flags);
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verify_return(jnienv, err);
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}
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JNIEXPORT /*DbLock*/ jobject JNICALL Java_com_sleepycat_db_DbLockTab_get
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(JNIEnv *jnienv, jobject jthis, /*u_int32_t*/ jint locker,
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jint flags, /*const Dbt*/ jobject obj, /*db_lockmode_t*/ jint lock_mode)
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{
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int err;
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DB_LOCKTAB *dblocktab = get_DB_LOCKTAB(jnienv, jthis);
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DB_LOCK dblock;
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LockedDBT dbobj(jnienv, obj, 0);
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if (dbobj.has_error())
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return 0;
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/*DbLock*/ jobject retval = NULL;
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if (!verify_non_null(jnienv, dblocktab))
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return retval;
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err = lock_get(dblocktab, locker, flags, dbobj.dbt,
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(db_lockmode_t)lock_mode, &dblock);
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if (verify_return(jnienv, err)) {
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retval = create_default_object(jnienv, name_DB_LOCK);
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set_private_long_info(jnienv, name_DB_LOCK, retval, dblock);
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}
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return retval;
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}
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JNIEXPORT jint JNICALL Java_com_sleepycat_db_DbLockTab_id
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(JNIEnv *jnienv, jobject jthis)
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{
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int err;
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DB_LOCKTAB *dblocktab = get_DB_LOCKTAB(jnienv, jthis);
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if (!verify_non_null(jnienv, dblocktab))
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return -1;
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u_int32_t id;
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err = lock_id(dblocktab, &id);
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verify_return(jnienv, err);
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return id;
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}
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JNIEXPORT jobject JNICALL Java_com_sleepycat_db_DbLockTab_open
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(JNIEnv *jnienv, jclass jthis_class, jstring dir, jint flags,
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jint mode, /*DbEnv*/ jobject dbenv)
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{
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int err;
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jobject retval = NULL;
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DB_LOCKTAB *dblocktab;
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DB_ENV *db_dbenv = get_DB_ENV(jnienv, dbenv);
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LockedString dbdir(jnienv, dir);
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if (verify_non_null(jnienv, db_dbenv)) {
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err = lock_open(dbdir.string, flags, mode,
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db_dbenv, &dblocktab);
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if (verify_return(jnienv, err)) {
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retval = create_default_object(jnienv, name_DB_LOCKTAB);
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set_private_info(jnienv, name_DB_LOCKTAB, retval, dblocktab);
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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_DbLockTab_unlink
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(JNIEnv *jnienv, jclass jthis_class, jstring dir, jint force,
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/*DbEnv*/ jobject dbenv)
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{
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int err;
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DB_ENV *db_dbenv = get_DB_ENV(jnienv, dbenv);
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LockedString dbdir(jnienv, dir);
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if (verify_non_null(jnienv, db_dbenv)) {
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err = lock_unlink(dbdir.string, force, db_dbenv);
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verify_return(jnienv, err);
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}
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}
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JNIEXPORT void JNICALL Java_com_sleepycat_db_DbLockTab_finalize
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(JNIEnv *jnienv, jobject jthis)
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{
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DB_LOCKTAB *dblocktab = get_DB_LOCKTAB(jnienv, jthis);
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if (dblocktab) {
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// Free any data related to DB_LOCKTAB 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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