test

/**********************************************************************
 * Copyright (c) 2000, 2005 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *    IBM Corporation - Initial API and implementation
 **********************************************************************/
 
/* bug 82520 : need to include stdlib.h */
# include <stdlib.h>
# include <sys/types.h>
# include <sys/statfs.h>
# include <update.h>
 
/*
 * Class:     org_eclipse_update_configuration_LocalSystemInfo
 * Method:    nativeGetFreeSpace
 * Signature: (Ljava/io/File;)J
 */
JNIEXPORT jlong JNICALL Java_org_eclipse_update_configuration_LocalSystemInfo_nativeGetFreeSpace(
    JNIEnv * jnienv,
    jclass javaClass,
    jobject file) {
 
    // to retrive the String
    jclass cls;
    jmethodID id;
    jobject obj;
 
    // java.io.File.getAbsolutePath()
    const char * lpDirectoryName;
 
    // Linux Parameters
    struct statfs buffer;
 
    // the result
    jlong result = org_eclipse_update_configuration_LocalSystemInfo_SIZE_UNKNOWN;
 
    cls = (*jnienv) -> GetObjectClass(jnienv, file);
    id = (*jnienv) -> GetMethodID(jnienv, cls, "getAbsolutePath", "()Ljava/lang/String;");
    obj = (*jnienv) -> CallObjectMethod(jnienv, file, id);
    lpDirectoryName = (*jnienv) -> GetStringUTFChars(jnienv, (jstring) obj, 0);
 
    // cast one argument as jlong to have a jlong result
    int err = statfs(lpDirectoryName,&buffer);
    if (err==0){
        long size = buffer.f_bsize;
        jlong free = buffer.f_bfree;
        result = size*free;
    }
 
    return result;
}
 
/*
 * Class:     org_eclipse_update_configuration_LocalSystemInfo
 * Method:    nativeGetLabel
 * Signature: (Ljava/io/File;)Ljava/lang/String;
 */
JNIEXPORT jstring JNICALL Java_org_eclipse_update_configuration_LocalSystemInfo_nativeGetLabel(
    JNIEnv * jnienv,
    jclass javaClass,
    jobject file) {
 
    // to retrive the String
    jclass cls;
    jmethodID id;
    jobject obj;
 
    // java.io.File.getAbsolutePath()
    const char * lpDirectoryName;
 
    // obtain the String from the parameter
    cls = (*jnienv) -> GetObjectClass(jnienv, file);
    id = (*jnienv) -> GetMethodID(jnienv, cls, "getAbsolutePath", "()Ljava/lang/String;");
    obj = (*jnienv) -> CallObjectMethod(jnienv, file, id);
    lpDirectoryName = (*jnienv) -> GetStringUTFChars(jnienv, (jstring) obj, 0);
 
    jstring result = NULL;
 
    // Linux implementation following
 
    return result;
}
 
/*
 * Class:     org_eclipse_update_configuration_LocalSystemInfo
 * Method:    nativeGetType
 * Signature: (Ljava/io/File;)I
 */
JNIEXPORT jint JNICALL Java_org_eclipse_update_configuration_LocalSystemInfo_nativeGetType(
    JNIEnv * jnienv,
    jclass javaClass,
    jobject file) {
 
    // to retrive the String
    jclass cls;
    jmethodID id;
    jobject obj;
 
    // java.io.File.getAbsolutePath()
    const char * lpDirectoryName;
 
    // obtain the String from the parameter
    cls = (*jnienv) -> GetObjectClass(jnienv, file);
    id = (*jnienv) -> GetMethodID(jnienv, cls, "getAbsolutePath", "()Ljava/lang/String;");
    obj = (*jnienv) -> CallObjectMethod(jnienv, file, id);
    lpDirectoryName = (*jnienv) -> GetStringUTFChars(jnienv, (jstring) obj, 0);
 
    int result;
    
    // Linux implemantation
 
    result = org_eclipse_update_configuration_LocalSystemInfo_VOLUME_INVALID_PATH;
    return result;
}
 
/*
 * Class:     org_eclipse_update_configuration_LocalSystemInfo
 * Method:    nativeListMountPoints
 * Signature: ()[Ljava/lang/String;
 */
JNIEXPORT jobjectArray JNICALL Java_org_eclipse_update_configuration_LocalSystemInfo_nativeListMountPoints(
    JNIEnv * jnienv,
    jclass javaClass) {
 
    //
    int drive;
    char driveName[100];
    jobjectArray returnArray;
    int nDrive = 0;
 
    //  
    jclass stringClass;
    jobject empty;
    int index = 0;
    jobject str;
 
    // Linux implementation
    // find mount points
 
    drive = 0;
    stringClass = (*jnienv) -> FindClass(jnienv, "java/lang/String");
    empty = (*jnienv) -> NewStringUTF(jnienv, "");
    //returnArray = (*jnienv) -> NewObjectArray(jnienv, nDrive, stringClass, empty);
 
    // for now return null as method is not implemented
    returnArray = NULL;
 
    int i;
    for (i = 0; i < drive; i++) {
        // Linux implementation, create String for each mount point
 
        str = (*jnienv) -> NewStringUTF(jnienv, driveName);
        (*jnienv) -> SetObjectArrayElement(jnienv, returnArray, index, str);
 
        index++;
    }
 
    return returnArray;
}