/*

 * Copyright (c) 2004, 2018, 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.

 *

 * 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_tools.h"

#include "agent_common.h"

#include "jvmti_tools.h"

#define PASSED 0

#define STATUS_FAILED 2

extern "C" {

/* ========================================================================== */

/* scaffold objects */

static jlong timeout = 0;

/* test objects */

static int VMInitEventsCount = 0;

static int VMInitEventsExpected = 1;

static int VMDeathEventsCount = 0;

static int VMDeathEventsExpected = 1;

/* ========================================================================== */

/** callback functions **/

void JNICALL VMInit(jvmtiEnv *jvmti_env, JNIEnv *env, jthread thr) {

    NSK_DISPLAY0("VMInit event\n");

    VMInitEventsCount++;

}

void JNICALL

VMDeath(jvmtiEnv *jvmti_env, JNIEnv *env) {

    NSK_DISPLAY0("VMDeath event\n");

    VMDeathEventsCount++;

}

/* ========================================================================== */

/** Agent algorithm. */

static void JNICALL

agentProc(jvmtiEnv* jvmti, JNIEnv* jni, void* arg) {

    if (!nsk_jvmti_waitForSync(timeout))

        return;

    if (VMInitEventsCount != VMInitEventsExpected) {

        NSK_COMPLAIN2("Wrong number of VM init events: %d, expected: %d\n",

            VMInitEventsCount, VMInitEventsExpected);

        nsk_jvmti_setFailStatus();

    }

    if (!nsk_jvmti_resumeSync())

        return;

}

/* ========================================================================== */

/** Agent library initialization. */

#ifdef STATIC_BUILD

JNIEXPORT jint JNICALL Agent_OnLoad_ma02t001(JavaVM *jvm, char *options, void *reserved) {

    return Agent_Initialize(jvm, options, reserved);

}

JNIEXPORT jint JNICALL Agent_OnAttach_ma02t001(JavaVM *jvm, char *options, void *reserved) {

    return Agent_Initialize(jvm, options, reserved);

}

JNIEXPORT jint JNI_OnLoad_ma02t001(JavaVM *jvm, char *options, void *reserved) {

    return JNI_VERSION_1_8;

}

#endif

jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) {

    jvmtiEnv* jvmti = NULL;

    jvmtiEventCallbacks callbacks;

    NSK_DISPLAY0("Agent_OnLoad\n");

    if (!NSK_VERIFY(nsk_jvmti_parseOptions(options)))

        return JNI_ERR;

    timeout = nsk_jvmti_getWaitTime() * 60 * 1000;

    if (!NSK_VERIFY((jvmti =

            nsk_jvmti_createJVMTIEnv(jvm, reserved)) != NULL))

        return JNI_ERR;

    if (!NSK_VERIFY(nsk_jvmti_setAgentProc(agentProc, NULL)))

        return JNI_ERR;

    memset(&callbacks, 0, sizeof(callbacks));

    callbacks.VMInit = &VMInit;

    callbacks.VMDeath = &VMDeath;

    if (!NSK_VERIFY(nsk_jvmti_init_MA(&callbacks)))

        return JNI_ERR;

    if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB4(SetEventNotificationMode,

            jvmti, JVMTI_ENABLE, JVMTI_EVENT_VM_INIT, NULL)))

        return JNI_ERR;

    if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB4(SetEventNotificationMode,

            jvmti, JVMTI_ENABLE, JVMTI_EVENT_VM_DEATH, NULL)))

        return JNI_ERR;

    return JNI_OK;

}

/* ========================================================================== */

/* agent library shutdown */

JNIEXPORT void JNICALL

#ifdef STATIC_BUILD

Agent_OnUnload_ma02t001(JavaVM *jvm)

#else

Agent_OnUnload(JavaVM *jvm)

#endif

{

    const char* KEY_PHRASE = "Agent_OnUnload() of the 1st agent";

    fprintf(stdout, "%s\n", KEY_PHRASE);

    fflush(stdout);

    if (VMDeathEventsCount != VMDeathEventsExpected) {

        NSK_COMPLAIN2("Wrong number of VM death events: %d, expected: %d\n",

            VMDeathEventsCount, VMDeathEventsExpected);

        exit(97);

    }

}

/* ========================================================================== */

}