/*

 * 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 <stdio.h>

#include <string.h>

#include <jvmti.h>

#include "agent_common.h"

#include "nsk_tools.h"

#include "jni_tools.h"

#include "JVMTITools.h"

#include "jvmti_tools.h"

extern "C" {

#define EXP_OBJ_NUMBER 1

static JNIEnv *jni = NULL;

static jvmtiEnv *jvmti = NULL;

static jvmtiEventCallbacks callbacks;

static jvmtiCapabilities caps;

static jlong timeout = 0;

static jobject root = NULL;

static const char* DEBUGEE_SIGNATURE = "Lnsk/jvmti/scenarios/allocation/AP07/ap07t002;";

static const jlong IGNORE_TAG = (jlong)10l;

/* jvmtiHeapRootCallback */

jvmtiIterationControl JNICALL

    if (*tag_ptr > 0) {

        NSK_DISPLAY2("heapRootCallback: root kind=%s, tag=%d\n", TranslateRootKind(root_kind), (long)*tag_ptr);

    }

    return JVMTI_ITERATION_CONTINUE;

}

/* jvmtiStackReferenceCallback */

jvmtiIterationControl JNICALL

    if (*tag_ptr > 0) {

        NSK_DISPLAY2("stackReferenceCallback: root kind=%s, tag=%d\n", TranslateRootKind(root_kind), (long)*tag_ptr);

    }

    /* ignore referrees of right branch */

    if (*tag_ptr == IGNORE_TAG) {

        return JVMTI_ITERATION_IGNORE;

    }

    return JVMTI_ITERATION_CONTINUE;

}

/* jvmtiObjectReferenceCallback */

jvmtiIterationControl JNICALL

    if (*tag_ptr > 0) {

        NSK_DISPLAY2("objectReferenceCallback: reference kind=%s, tag=%d\n", TranslateObjectRefKind(reference_kind), (long)*tag_ptr);

    }

    if (*tag_ptr > IGNORE_TAG) {

        nsk_jvmti_setFailStatus();

        NSK_COMPLAIN1("objectReferenceCallback: the checked object was not ignored, tag=%d\n\n", (long)*tag_ptr);

    }

    return JVMTI_ITERATION_CONTINUE;

}

/************************/

JNIEXPORT void JNICALL

    if (!NSK_JVMTI_VERIFY(jvmti->SetTag(target, tag))) {

        nsk_jvmti_setFailStatus();

    }

}

static void JNICALL

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

    jclass debugeeClass = NULL;

    NSK_DISPLAY0("Wait for debugee start\n\n");

    if (!NSK_VERIFY(nsk_jvmti_waitForSync(timeout)))

        return;

    do {

        NSK_DISPLAY0("Calling IterateOverReachableObjects\n");

        if (!NSK_JVMTI_VERIFY(jvmti->IterateOverReachableObjects(heapRootCallback,

                                                                 stackReferenceCallback,

                                                                 objectReferenceCallback,

                                                                 NULL /*user_data*/))) {

            nsk_jvmti_setFailStatus();

            break;

        }

    } while (0);

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

    if (!NSK_VERIFY(nsk_jvmti_resumeSync()))

        return;

}

#ifdef STATIC_BUILD

JNIEXPORT jint JNICALL Agent_OnLoad_ap07t002(JavaVM *jvm, char *options, void *reserved) {

    return Agent_Initialize(jvm, options, reserved);

}

JNIEXPORT jint JNICALL Agent_OnAttach_ap07t002(JavaVM *jvm, char *options, void *reserved) {

    return Agent_Initialize(jvm, options, reserved);

}

JNIEXPORT jint JNI_OnLoad_ap07t002(JavaVM *jvm, char *options, void *reserved) {

    return JNI_VERSION_1_8;

}

#endif

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

    /* init framework and parse options */

    if (!NSK_VERIFY(nsk_jvmti_parseOptions(options)))

        return JNI_ERR;

    /* create JVMTI environment */

    if (!NSK_VERIFY((jvmti =

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

        return JNI_ERR;

    memset(&caps, 0, sizeof(jvmtiCapabilities));

    caps.can_tag_objects = 1;

    if (!NSK_JVMTI_VERIFY(jvmti->AddCapabilities(&caps)))

        return JNI_ERR;

    if (!NSK_JVMTI_VERIFY(jvmti->GetCapabilities(&caps)))

        return JNI_ERR;

    if (!caps.can_tag_objects)

        NSK_DISPLAY0("Warning: tagging objects is not implemented\n");

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

        return JNI_ERR;

    NSK_DISPLAY0("agentProc has been set\n\n");

    return JNI_OK;

}

}