/*

 * Copyright (c) 2003, 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 "jvmti.h"

#include "agent_common.h"

#include "jni_tools.h"

#include "jvmti_tools.h"

extern "C" {

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

static jlong timeout = 0;

#define STATUS_FAIL     97

#define EVENTS_COUNT    2

static jvmtiEvent events[EVENTS_COUNT] = {

    JVMTI_EVENT_VM_INIT,

    JVMTI_EVENT_VM_DEATH

};

static julong prevTime;

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

/**

 * Get time and optionally compare it with previous one.

 */

    char buf[32], buf2[32], buf3[32];

    NSK_DISPLAY0("GetTime() for current JVMTI env\n");

    if (!NSK_JVMTI_VERIFY(

            jvmti->GetTime((jlong *)time))) {

    }

    NSK_DISPLAY1("  ... got time: %s\n", julong_to_string(*time, buf));

    if (prevTime != NULL) {

        julong diff = *time - *prevTime;

        NSK_DISPLAY1("Compare with previous time: %s\n",

                            julong_to_string(*prevTime, buf));

        NSK_DISPLAY1("  ... difference: %s\n",

                            julong_to_string(diff, buf));

        if (*time < *prevTime) {

            NSK_COMPLAIN4("In %s GetTime() returned value less than previous:\n"

                          "#   got value:  %s\n"

                          "#   previous:   %s\n"

                          "#   difference: %s\n",

                            where,

                            julong_to_string(*time, buf),

                            julong_to_string(*prevTime, buf2),

                            julong_to_string(diff, buf3));

        }

        *prevTime = *time;

    }

    return success;

}

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

/** Agent algorithm. */

static void JNICALL

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

    NSK_DISPLAY0("Wait for debugee to become ready\n");

    if (!nsk_jvmti_waitForSync(timeout))

        return;

    NSK_DISPLAY0(">>> Testcase #3: Check time in agent thread\n");

    {

        julong time;

        if (!checkTime(jvmti, &time, &prevTime, "agent thread")) {

            nsk_jvmti_setFailStatus();

        }

    }

    NSK_DISPLAY0("Let debugee to finish\n");

    if (!nsk_jvmti_resumeSync())

        return;

}

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

/**

 * Callback for VM_INIT event.

 */

JNIEXPORT void JNICALL

callbackVMInit(jvmtiEnv* jvmti, JNIEnv* jni, jthread thread) {

    NSK_DISPLAY0(">>> Testcase #2: Check time in VM_INIT callback\n");

    {

        julong time;

        if (!checkTime(jvmti, &time, &prevTime, "VM_INIT callback")) {

            nsk_jvmti_setFailStatus();

        }

    }

}

/**

 * Callback for VM_DEATH event.

 */

JNIEXPORT void JNICALL

callbackVMDeath(jvmtiEnv* jvmti, JNIEnv* jni) {

    NSK_DISPLAY0(">>> Testcase #4: Check time in VM_DEATH callback\n");

    {

        julong time;

        success = checkTime(jvmti, &time, &prevTime, "VM_DEATH callback");

    }

    NSK_DISPLAY1("Disable events: %d events\n", EVENTS_COUNT);

    if (!nsk_jvmti_enableEvents(JVMTI_DISABLE, EVENTS_COUNT, events, NULL)) {

    } else {

        NSK_DISPLAY0("  ... disabled\n");

    }

        NSK_DISPLAY1("Exit with FAIL exit status: %d\n", STATUS_FAIL);

        NSK_BEFORE_TRACE(exit(STATUS_FAIL));

    }

}

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

/** Agent library initialization. */

#ifdef STATIC_BUILD

JNIEXPORT jint JNICALL Agent_OnLoad_gettime001(JavaVM *jvm, char *options, void *reserved) {

    return Agent_Initialize(jvm, options, reserved);

}

JNIEXPORT jint JNICALL Agent_OnAttach_gettime001(JavaVM *jvm, char *options, void *reserved) {

    return Agent_Initialize(jvm, options, reserved);

}

JNIEXPORT jint JNI_OnLoad_gettime001(JavaVM *jvm, char *options, void *reserved) {

    return JNI_VERSION_1_8;

}

#endif

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

    jvmtiEnv* jvmti = NULL;

    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;

    {

        jvmtiEventCallbacks eventCallbacks;

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

        eventCallbacks.VMInit = callbackVMInit;

        eventCallbacks.VMDeath = callbackVMDeath;

        if (!NSK_JVMTI_VERIFY(

                jvmti->SetEventCallbacks(&eventCallbacks, sizeof(eventCallbacks)))) {

            return JNI_ERR;

        }

    }

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

        return JNI_ERR;

    NSK_DISPLAY0(">>> Testcase #1: Check initial time in Agent_OnLoad()\n");

    {

        if (!checkTime(jvmti, &prevTime, NULL, "Agent_OnLoad()")) {

            nsk_jvmti_setFailStatus();

        }

    }

    NSK_DISPLAY1("Enable events: %d events\n", EVENTS_COUNT);

    if (nsk_jvmti_enableEvents(JVMTI_ENABLE, EVENTS_COUNT, events, NULL)) {

        NSK_DISPLAY0("  ... enabled\n");

    }

    return JNI_OK;

}

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

}