/*

 * Copyright (c) 2003, 2016, 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 <jni.h>

#include <stdlib.h>

#include "jvm.h"

#include "management.h"

#include "sun_management_VMManagementImpl.h"

#define MAX_VERSION_LEN   20

JNIEXPORT jstring JNICALL

Java_sun_management_VMManagementImpl_getVersion0

  (JNIEnv *env, jclass dummy)

{

    char buf[MAX_VERSION_LEN];

    jstring version_string = NULL;

    unsigned int major = ((unsigned int) jmm_version & 0x0FFF0000) >> 16;

    unsigned int minor = ((unsigned int) jmm_version & 0xFF00) >> 8;

    // for internal use

    unsigned int micro = (unsigned int) jmm_version & 0xFF;

    sprintf(buf, "%d.%d", major, minor);

    version_string = (*env)->NewStringUTF(env, buf);

    return version_string;

}

static void setStaticBooleanField

   (JNIEnv* env, jclass cls, const char* name, jboolean value)

{

    jfieldID fid;

    fid = (*env)->GetStaticFieldID(env, cls, name, "Z");

    if (fid != 0) {

        (*env)->SetStaticBooleanField(env, cls, fid, value);

    }

}

JNIEXPORT void JNICALL

Java_sun_management_VMManagementImpl_initOptionalSupportFields

  (JNIEnv *env, jclass cls)

{

    jmmOptionalSupport mos;

    jint ret = jmm_interface->GetOptionalSupport(env, &mos);

    jboolean value;

    value = mos.isCompilationTimeMonitoringSupported;

    setStaticBooleanField(env, cls, "compTimeMonitoringSupport", value);

    value = mos.isThreadContentionMonitoringSupported;

    setStaticBooleanField(env, cls, "threadContentionMonitoringSupport", value);

    value = mos.isCurrentThreadCpuTimeSupported;

    setStaticBooleanField(env, cls, "currentThreadCpuTimeSupport", value);

    value = mos.isOtherThreadCpuTimeSupported;

    setStaticBooleanField(env, cls, "otherThreadCpuTimeSupport", value);

    if (jmm_version >= JMM_VERSION_1_1) {

        value = mos.isObjectMonitorUsageSupported;

        setStaticBooleanField(env, cls, "objectMonitorUsageSupport", value);

        value = mos.isSynchronizerUsageSupported;

        setStaticBooleanField(env, cls, "synchronizerUsageSupport", value);

    } else {

        setStaticBooleanField(env, cls, "objectMonitorUsageSupport", JNI_FALSE);

        setStaticBooleanField(env, cls, "synchronizerUsageSupport", JNI_FALSE);

    }

    value = mos.isThreadAllocatedMemorySupported;

    setStaticBooleanField(env, cls, "threadAllocatedMemorySupport", value);

    value = mos.isRemoteDiagnosticCommandsSupported;

    setStaticBooleanField(env, cls, "remoteDiagnosticCommandsSupport", value);

}

JNIEXPORT jobjectArray JNICALL

Java_sun_management_VMManagementImpl_getVmArguments0

  (JNIEnv *env, jobject dummy)

{

    return JVM_GetVmArguments(env);

}

JNIEXPORT jlong JNICALL

Java_sun_management_VMManagementImpl_getTotalClassCount

  (JNIEnv *env, jobject dummy)

{

    /* JMM_CLASS_LOADED_COUNT is the total number of classes loaded */

    jlong count = jmm_interface->GetLongAttribute(env, NULL,

                                                  JMM_CLASS_LOADED_COUNT);

    return count;

}

JNIEXPORT jlong JNICALL

Java_sun_management_VMManagementImpl_getUnloadedClassCount

  (JNIEnv *env, jobject dummy)

{

    /* JMM_CLASS_UNLOADED_COUNT is the total number of classes unloaded */

    jlong count = jmm_interface->GetLongAttribute(env, NULL,

                                                  JMM_CLASS_UNLOADED_COUNT);

    return count;

}

JNIEXPORT jboolean JNICALL

Java_sun_management_VMManagementImpl_getVerboseGC

  (JNIEnv *env, jobject dummy)

{

    return jmm_interface->GetBoolAttribute(env, JMM_VERBOSE_GC);

}

JNIEXPORT jboolean JNICALL

Java_sun_management_VMManagementImpl_getVerboseClass

  (JNIEnv *env, jobject dummy)

{

    return jmm_interface->GetBoolAttribute(env, JMM_VERBOSE_CLASS);

}

JNIEXPORT jlong JNICALL

Java_sun_management_VMManagementImpl_getTotalThreadCount

  (JNIEnv *env, jobject dummy)

{

    return jmm_interface->GetLongAttribute(env, NULL,

                                           JMM_THREAD_TOTAL_COUNT);

}

JNIEXPORT jint JNICALL

Java_sun_management_VMManagementImpl_getLiveThreadCount

  (JNIEnv *env, jobject dummy)

{

    jlong count = jmm_interface->GetLongAttribute(env, NULL,

                                                  JMM_THREAD_LIVE_COUNT);

    return (jint) count;

}

JNIEXPORT jint JNICALL

Java_sun_management_VMManagementImpl_getPeakThreadCount

  (JNIEnv *env, jobject dummy)

{

    jlong count = jmm_interface->GetLongAttribute(env, NULL,

                                                  JMM_THREAD_PEAK_COUNT);

    return (jint) count;

}

JNIEXPORT jint JNICALL

Java_sun_management_VMManagementImpl_getDaemonThreadCount

  (JNIEnv *env, jobject dummy)

{

    jlong count = jmm_interface->GetLongAttribute(env, NULL,

                                                  JMM_THREAD_DAEMON_COUNT);

    return (jint) count;

}

JNIEXPORT jlong JNICALL

Java_sun_management_VMManagementImpl_getTotalCompileTime

  (JNIEnv *env, jobject dummy)

{

    return jmm_interface->GetLongAttribute(env, NULL,

                                           JMM_COMPILE_TOTAL_TIME_MS);

}

JNIEXPORT jlong JNICALL

Java_sun_management_VMManagementImpl_getStartupTime

  (JNIEnv *env, jobject dummy)

{

    return jmm_interface->GetLongAttribute(env, NULL,

                                           JMM_JVM_INIT_DONE_TIME_MS);

}

JNIEXPORT jlong JNICALL

Java_sun_management_VMManagementImpl_getUptime0

  (JNIEnv *env, jobject dummy)

{

    return jmm_interface->GetLongAttribute(env, NULL, JMM_JVM_UPTIME_MS);

}

JNIEXPORT jboolean JNICALL

Java_sun_management_VMManagementImpl_isThreadContentionMonitoringEnabled

  (JNIEnv *env, jobject dummy)

{

    return jmm_interface->GetBoolAttribute(env,

                                           JMM_THREAD_CONTENTION_MONITORING);

}

JNIEXPORT jboolean JNICALL

Java_sun_management_VMManagementImpl_isThreadCpuTimeEnabled

  (JNIEnv *env, jobject dummy)

{

    return jmm_interface->GetBoolAttribute(env, JMM_THREAD_CPU_TIME);

}

JNIEXPORT jboolean JNICALL

Java_sun_management_VMManagementImpl_isThreadAllocatedMemoryEnabled

  (JNIEnv *env, jobject dummy)

{

    return jmm_interface->GetBoolAttribute(env, JMM_THREAD_ALLOCATED_MEMORY);

}

JNIEXPORT jint JNICALL

Java_sun_management_VMManagementImpl_getProcessId

  (JNIEnv *env, jobject dummy)

{

    jlong pid = jmm_interface->GetLongAttribute(env, NULL,

                                                JMM_OS_PROCESS_ID);

    return (jint) pid;

}

JNIEXPORT jint JNICALL

Java_sun_management_VMManagementImpl_getAvailableProcessors

  (JNIEnv *env, jobject dummy)

{

    return JVM_ActiveProcessorCount();

}

JNIEXPORT jlong JNICALL

Java_sun_management_VMManagementImpl_getSafepointCount

  (JNIEnv *env, jobject dummy)

{

    return jmm_interface->GetLongAttribute(env, NULL,

                                           JMM_SAFEPOINT_COUNT);

}

JNIEXPORT jlong JNICALL

Java_sun_management_VMManagementImpl_getTotalSafepointTime

  (JNIEnv *env, jobject dummy)

{

    return jmm_interface->GetLongAttribute(env, NULL,

                                           JMM_TOTAL_STOPPED_TIME_MS);

}

JNIEXPORT jlong JNICALL

Java_sun_management_VMManagementImpl_getSafepointSyncTime

  (JNIEnv *env, jobject dummy)

{

    return jmm_interface->GetLongAttribute(env, NULL,

                                           JMM_TOTAL_SAFEPOINTSYNC_TIME_MS);

}

JNIEXPORT jlong JNICALL

Java_sun_management_VMManagementImpl_getTotalApplicationNonStoppedTime

  (JNIEnv *env, jobject dummy)

{

    return jmm_interface->GetLongAttribute(env, NULL,

                                           JMM_TOTAL_APP_TIME_MS);

}

JNIEXPORT jlong JNICALL

Java_sun_management_VMManagementImpl_getLoadedClassSize

  (JNIEnv *env, jobject dummy)

{

    return jmm_interface->GetLongAttribute(env, NULL,

                                           JMM_CLASS_LOADED_BYTES);

}

JNIEXPORT jlong JNICALL

Java_sun_management_VMManagementImpl_getUnloadedClassSize

  (JNIEnv *env, jobject dummy)

{

    return jmm_interface->GetLongAttribute(env, NULL,

                                           JMM_CLASS_UNLOADED_BYTES);

}

JNIEXPORT jlong JNICALL

Java_sun_management_VMManagementImpl_getClassLoadingTime

  (JNIEnv *env, jobject dummy)

{

    return jmm_interface->GetLongAttribute(env, NULL,

                                           JMM_TOTAL_CLASSLOAD_TIME_MS);

}

JNIEXPORT jlong JNICALL

Java_sun_management_VMManagementImpl_getMethodDataSize

  (JNIEnv *env, jobject dummy)

{

    return jmm_interface->GetLongAttribute(env, NULL,

                                           JMM_METHOD_DATA_SIZE_BYTES);

}

JNIEXPORT jlong JNICALL

Java_sun_management_VMManagementImpl_getInitializedClassCount

  (JNIEnv *env, jobject dummy)

{

    return jmm_interface->GetLongAttribute(env, NULL,

                                           JMM_CLASS_INIT_TOTAL_COUNT);

}

JNIEXPORT jlong JNICALL

Java_sun_management_VMManagementImpl_getClassInitializationTime

  (JNIEnv *env, jobject dummy)

{

    return jmm_interface->GetLongAttribute(env, NULL,

                                           JMM_CLASS_INIT_TOTAL_TIME_MS);

}

JNIEXPORT jlong JNICALL

Java_sun_management_VMManagementImpl_getClassVerificationTime

  (JNIEnv *env, jobject dummy)

{

    return jmm_interface->GetLongAttribute(env, NULL,

                                           JMM_CLASS_VERIFY_TOTAL_TIME_MS);

}