/*

 * 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 <stdio.h>

#include <string.h>

#include "jvmti.h"

#include "agent_common.h"

extern "C" {

#define JVMTI_ERROR_CHECK(str,res) if ( res != JVMTI_ERROR_NONE) { printf(str); printf(" %d\n",res); return res;}

#define JVMTI_ERROR_CHECK_EXPECTED_ERROR(str,res,err) if ( res != err) { printf(str); printf("unexpected error %d\n",res); return res;}

#define JVMTI_ERROR_CHECK_VOID(str,res) if ( res != JVMTI_ERROR_NONE) { printf(str); printf(" %d\n",res); iGlobalStatus = 2; }

#define JVMTI_ERROR_CHECK_EXPECTED_ERROR_VOID(str,res,err) if ( res != err) { printf(str); printf(" unexpected error %d\n",res); iGlobalStatus = 2; }

jvmtiEnv *jvmti;

jint iGlobalStatus = 0;

static jvmtiCapabilities jvmti_caps;

static jvmtiEventCallbacks callbacks;

int printdump = 0;

void debug_printf(const char *fmt, ...) {

    va_list args;

    va_start(args, fmt);

    if (printdump) {

        vprintf(fmt, args);

    }

    va_end(args);

}

void JNICALL vmInit(jvmtiEnv *jvmti_env, JNIEnv *env, jthread thread) {

    jvmtiError res;

    debug_printf("VMInit event received\n");

    JVMTI_ERROR_CHECK_VOID("DisposeEnvironment returned error", res);

}

void init_callbacks() {

    callbacks.VMInit = vmInit;

}

#ifdef STATIC_BUILD

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

    return Agent_Initialize(jvm, options, reserved);

}

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

    return Agent_Initialize(jvm, options, reserved);

}

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

    return JNI_VERSION_1_8;

}

#endif

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

    jint res;

    jint count;

    char **properties;

    int i;

    if (options && strlen(options) > 0) {

        if (strstr(options, "printdump")) {

            printdump = 1;

        }

    }

    if (res < 0) {

        printf("Wrong result of a valid call to GetEnv!\n");

        return JNI_ERR;

    }

    /* Enable event call backs. */

    init_callbacks();

    JVMTI_ERROR_CHECK("SetEventCallbacks returned error", res);

    /* Add capabilities */

    JVMTI_ERROR_CHECK("GetPotentialCapabilities returned error", res);

    JVMTI_ERROR_CHECK("GetAddCapabilities returned error", res);

    JVMTI_ERROR_CHECK("SetEventNotificationMode for VM_INIT returned error", res);

    JVMTI_ERROR_CHECK("GetSystemProperties returned error", res);

    for (i=0; i< count; i++) {

        char *value;

        JVMTI_ERROR_CHECK("GetSystemProperty returned error", res);

        debug_printf(" %s    %s \n", properties[i], value);

        debug_printf("SetSystemProperty returned error %d\n", res);

     }

    return JNI_OK;

}

JNIEXPORT jint JNICALL

Java_nsk_jvmti_unit_functions_Dispose_JvmtiTest_GetResult(JNIEnv * env, jclass cls) {

    return iGlobalStatus;

}

}