/*
 * 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"
#include "JVMTITools.h"

#ifdef __cplusplus
extern "C" {
#endif

#ifndef JNI_ENV_ARG

#ifdef __cplusplus
#define JNI_ENV_ARG(x, y) y
#define JNI_ENV_PTR(x) x
#else
#define JNI_ENV_ARG(x,y) x, y
#define JNI_ENV_PTR(x) (*x)
#endif

#endif

#define STATUS_FAILED 2
#define PASSED 0

#define DEBUGXSTR "An expected attribute string"

jvmtiEnv *jvmti;
static jvmtiCapabilities caps;
static int result = PASSED;

#ifdef STATIC_BUILD
JNIEXPORT jint JNICALL Agent_OnLoad_srcdebugex003(JavaVM *jvm, char *options, void *reserved) {
    return Agent_Initialize(jvm, options, reserved);
}
JNIEXPORT jint JNICALL Agent_OnAttach_srcdebugex003(JavaVM *jvm, char *options, void *reserved) {
    return Agent_Initialize(jvm, options, reserved);
}
JNIEXPORT jint JNI_OnLoad_srcdebugex003(JavaVM *jvm, char *options, void *reserved) {
    return JNI_VERSION_1_8;
}
#endif
jint  Agent_Initialize(JavaVM *jvm, char *options, void *reserved) {
    jvmtiError err;
    jint res;

    res = JNI_ENV_PTR(jvm)->GetEnv(JNI_ENV_ARG(jvm, (void **) &jvmti),
        JVMTI_VERSION_1_1);
    if (res != JNI_OK || jvmti == NULL) {
        printf("Wrong result of a valid call to GetEnv !\n");
        return JNI_ERR;
    }

    err = (*jvmti)->GetPotentialCapabilities(jvmti, &caps);
    if (err != JVMTI_ERROR_NONE) {
        printf("(GetPotentialCapabilities) unexpected error: %s (%d)\n",
               TranslateError(err), err);
        return JNI_ERR;
    }

    err = (*jvmti)->AddCapabilities(jvmti, &caps);
    if (err != JVMTI_ERROR_NONE) {
        printf("(AddCapabilities) unexpected error: %s (%d)\n",
               TranslateError(err), err);
        return JNI_ERR;
    }

    err = (*jvmti)->GetCapabilities(jvmti, &caps);
    if (err != JVMTI_ERROR_NONE) {
        printf("(GetCapabilities) unexpected error: %s (%d)\n",
               TranslateError(err), err);
        return JNI_ERR;
    }

    if (!caps.can_get_source_debug_extension) {
        printf("Warning: GetSourceDebugExtension is not implemented\n");
    }

    return JNI_OK;
}

JNIEXPORT jint JNICALL
Java_nsk_jvmti_GetSourceDebugExtension_srcdebugex003_getSrcDebugX(JNIEnv *env,
        jclass cls, jboolean vrb) {
    jvmtiError err;
    char *srcDebugX = NULL;

    if (!caps.can_get_source_debug_extension) return result;

    if (vrb == JNI_TRUE)
        printf(">>>>>>>> Invoking GetSourceDebugExtension()...\n");
    err = (*jvmti)->GetSourceDebugExtension(jvmti, cls, &srcDebugX);
    if (err != JVMTI_ERROR_NONE) {
        printf("%s: Failed to call GetSourceDebugExtension():\n", __FILE__);
        printf("\tthe function returned the error: %s (%d)\n",
               TranslateError(err), err);
        printf("\tFor more info about this error please refer to the JVMTI spec.\n");
        return STATUS_FAILED;
    }
    if (vrb == JNI_TRUE)
        printf("<<<<<<<< GetSourceDebugExtension() is successfully done\n");

    if (strcmp(srcDebugX, DEBUGXSTR) != 0) {
        printf("TEST FAILED: obtained SourceDebugExtension attribute is \"%s\"\n",
               srcDebugX);
        printf("\texpected: \"%s\"\n\n", DEBUGXSTR);
        result = STATUS_FAILED;
    } else {
        if (vrb == JNI_TRUE)
            printf("TEST PASSED: got the expected SourceDebugExtension attribute: \"%s\"\n\n",
                   srcDebugX);
        result = PASSED;
    }

    err = (*jvmti)->Deallocate(jvmti, (unsigned char*) srcDebugX);
    if (err != JVMTI_ERROR_NONE) {
        printf("TEST FAILED: the function Deallocate() returned the error: %s (%d)\n",
               TranslateError(err), err);
        result = STATUS_FAILED;
    }
    return (result);
}

#ifdef __cplusplus
}
#endif