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products/Sources/formale Sprachen/JAVA/Openjdk/src/java.base/share/native/libjava/ (Sun/Oracle ^©) Datei vom 13.11.2022 mit Größe 2 kB

Quelle TimeZone.c Sprache: C

/*
* Copyright (c) 1999, 2014, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.  Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/

#include <stdlib.h>
#include <string.h>

#include "jni.h"
#include "jni_util.h"
#include "jvm.h"
#include "TimeZone_md.h"

#include "java_util_TimeZone.h"

/*
* Gets the platform defined TimeZone ID
*/
JNIEXPORT jstring JNICALL
Java_java_util_TimeZone_getSystemTimeZoneID(JNIEnv *env, jclass ign,
                                            jstring java_home)
{
    const char *java_home_dir;
    char *javaTZ;
    jstring jstrJavaTZ = NULL;

    CHECK_NULL_RETURN(java_home, NULL);

    java_home_dir = JNU_GetStringPlatformChars(env, java_home, 0);
    CHECK_NULL_RETURN(java_home_dir, NULL);

    /*
     * Invoke platform dependent mapping function
     */
    javaTZ = findJavaTZ_md(java_home_dir);
    if (javaTZ != NULL) {
        jstrJavaTZ = JNU_NewStringPlatform(env, javaTZ);
        free((void *)javaTZ);
    }

    JNU_ReleaseStringPlatformChars(env, java_home, java_home_dir);
    return jstrJavaTZ;
}

/*
* Gets a GMT offset-based time zone ID (e.g., "GMT-08:00")
*/
JNIEXPORT jstring JNICALL
Java_java_util_TimeZone_getSystemGMTOffsetID(JNIEnv *env, jclass ign)
{
    char *id = getGMTOffsetID();
    jstring jstrID = NULL;

    if (id != NULL) {
        jstrID = JNU_NewStringPlatform(env, id);
        free((void *)id);
    }
    return jstrID;
}

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