view test/hotspot/jtreg/vmTestbase/nsk/jvmti/scenarios/allocation/AP03/ap03t001/ap03t001.cpp @ 51870:cdfabab3413f

8210689: Remove the multi-line old C style for string literals Summary: Remove the multi-line old C style and prefer C++ multi-line Reviewed-by: amenkov, cjplummer
author jcbeyler
date Tue, 25 Sep 2018 09:34:51 -0700
parents 79dc492c00ab
children a986ec4ff214
line wrap: on
line source
/*
 * 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 volatile int obj_free = 0;
static volatile long obj_count = 0;

static jlong timeout = 0;
static int user_data = 0;
static const char* DEBUGEE_SIGNATURE = "Lnsk/jvmti/scenarios/allocation/AP03/ap03t001;";
static const jlong DEBUGEE_CLASS_TAG = (jlong)1024;

void JNICALL
ObjectFree(jvmtiEnv *jvmti_env, jlong tag) {
    NSK_COMPLAIN1("Received unexpected ObjectFree event for an object with tag %ld\n\n", (long)tag);
    nsk_jvmti_setFailStatus();
    obj_free++;
}

jvmtiIterationControl JNICALL
heapObjectCallback(jlong class_tag,
                   jlong size,
                   jlong* tag_ptr,
                   void* user_data) {

    if (class_tag == DEBUGEE_CLASS_TAG) {
        obj_count++;
    }

    return JVMTI_ITERATION_CONTINUE;
}

jvmtiIterationControl JNICALL
objectReferenceCallback( jvmtiObjectReferenceKind reference_kind,
                         jlong  class_tag,
                         jlong  size,
                         jlong* tag_ptr,
                         jlong  referrer_tag,
                         jint   referrer_index,
                         void*  user_data) {

    if (class_tag == DEBUGEE_CLASS_TAG && *tag_ptr != 0) {
        obj_count++;
    }

    return JVMTI_ITERATION_CONTINUE;
}


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

JNIEXPORT void JNICALL
Java_nsk_jvmti_scenarios_allocation_AP03_ap03t001_setTag( JNIEnv* jni, jobject obj, jlong tag) {

    if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB3(SetTag,
         jvmti, obj, 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 {
        jobject catcher;
        jfieldID fid;

        NSK_DISPLAY1("Find debugee class: %s\n", DEBUGEE_SIGNATURE);
        debugeeClass = nsk_jvmti_classBySignature(DEBUGEE_SIGNATURE);
        if (debugeeClass == NULL) {
            nsk_jvmti_setFailStatus();
            break;
        }

        NSK_DISPLAY0("Set tag for debugee class\n\n");
        if (!NSK_JVMTI_VERIFY(
                NSK_CPP_STUB3(SetTag, jvmti,
                                      debugeeClass,
                                      DEBUGEE_CLASS_TAG ))) {
            nsk_jvmti_setFailStatus();
            break;
        }

        NSK_DISPLAY0("Calling IterateOverInstancesOfClass with filter JVMTI_HEAP_OBJECT_TAGGED\n");
        obj_count = 0;
        if (!NSK_JVMTI_VERIFY(
                NSK_CPP_STUB5(IterateOverInstancesOfClass,
                                  jvmti,
                                  debugeeClass,
                                  JVMTI_HEAP_OBJECT_TAGGED,
                                  heapObjectCallback,
                                  &user_data))) {
            nsk_jvmti_setFailStatus();
            break;
        }

        if (obj_count != EXP_OBJ_NUMBER) {
            nsk_jvmti_setFailStatus();
            NSK_COMPLAIN2(
                "IterateOverInstancesOfClass found unexpected number of objects: %d\n"
                "\texpected number: %d\n\n",
                obj_count, EXP_OBJ_NUMBER);
        } else {
            NSK_DISPLAY1("Number of objects IterateOverInstancesOfClass has found: %d\n\n", obj_count);
        }

        NSK_DISPLAY0("Calling IterateOverHeap with filter JVMTI_HEAP_OBJECT_TAGGED\n");
        obj_count = 0;
        if (!NSK_JVMTI_VERIFY(
                NSK_CPP_STUB4(IterateOverHeap,
                                  jvmti,
                                  JVMTI_HEAP_OBJECT_TAGGED,
                                  heapObjectCallback,
                                  &user_data))) {
            nsk_jvmti_setFailStatus();
            break;
        }

        if (obj_count != EXP_OBJ_NUMBER) {
            nsk_jvmti_setFailStatus();
            NSK_COMPLAIN2(
                "IterateOverHeap found unexpected number of objects: %d\n"
                "\texpected number: %d\n\n",
                obj_count, EXP_OBJ_NUMBER);
        } else {
            NSK_DISPLAY1("Number of objects IterateOverHeap has found: %d\n\n", obj_count);
        }

        if (!NSK_JNI_VERIFY(jni, (fid =
                NSK_CPP_STUB4(GetStaticFieldID, jni,
                                                debugeeClass,
                                                "catcher",
                                                DEBUGEE_SIGNATURE)) != NULL )) {
            nsk_jvmti_setFailStatus();
            break;
        }

        if (!NSK_JNI_VERIFY(jni, (catcher =
                NSK_CPP_STUB3(GetStaticObjectField, jni,
                                                    debugeeClass,
                                                    fid )) != NULL )) {
            NSK_COMPLAIN0("GetStaticObjectField returned NULL for 'catcher' field value\n\n");
            nsk_jvmti_setFailStatus();
            break;
        }

        NSK_DISPLAY0("Calling IterateOverObjectsReachableFromObject\n");
        obj_count = 0;
        if (!NSK_JVMTI_VERIFY(
                NSK_CPP_STUB4(IterateOverObjectsReachableFromObject, jvmti,
                                                                     catcher,
                                                                     objectReferenceCallback,
                                                                     &user_data))) {
            nsk_jvmti_setFailStatus();
            break;
        }

        if (obj_count != EXP_OBJ_NUMBER) {
            nsk_jvmti_setFailStatus();
            NSK_COMPLAIN2(
                "IterateOverObjectsReachableFromObject found unexpected number of objects: %d\n"
                "\texpected number: %d\n\n",
                obj_count, EXP_OBJ_NUMBER);
        } else {
            NSK_DISPLAY1("Number of objects IterateOverObjectsReachableFromObject has found: %d\n\n", obj_count);
        }
    } while (0);

    NSK_DISPLAY0("Let debugee to finish\n");
    if (!NSK_VERIFY(nsk_jvmti_resumeSync()))
        return;
}

#ifdef STATIC_BUILD
JNIEXPORT jint JNICALL Agent_OnLoad_ap03t001(JavaVM *jvm, char *options, void *reserved) {
    return Agent_Initialize(jvm, options, reserved);
}
JNIEXPORT jint JNICALL Agent_OnAttach_ap03t001(JavaVM *jvm, char *options, void *reserved) {
    return Agent_Initialize(jvm, options, reserved);
}
JNIEXPORT jint JNI_OnLoad_ap03t001(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_generate_object_free_events = 1;
    caps.can_tag_objects = 1;
    if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(AddCapabilities,
            jvmti, &caps)))
        return JNI_ERR;

    if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(GetCapabilities,
            jvmti, &caps)))
        return JNI_ERR;

    if (!caps.can_generate_object_free_events)
        NSK_DISPLAY0("Warning: generation of object free events is not implemented\n");
    if (!caps.can_tag_objects)
        NSK_DISPLAY0("Warning: tagging objects is not implemented\n");

    /* set event callback */
    NSK_DISPLAY0("setting event callbacks ...\n");
    (void) memset(&callbacks, 0, sizeof(callbacks));

    callbacks.ObjectFree = &ObjectFree;

    if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB3(SetEventCallbacks,
            jvmti, &callbacks, sizeof(callbacks))))
        return JNI_ERR;

    NSK_DISPLAY0("setting event callbacks done\nenabling JVMTI events ...\n");
    if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB4(SetEventNotificationMode,
            jvmti, JVMTI_ENABLE, JVMTI_EVENT_OBJECT_FREE, NULL)))
        return JNI_ERR;
    NSK_DISPLAY0("enabling the events done\n\n");

    if (!NSK_VERIFY(nsk_jvmti_setAgentProc(agentProc, NULL)))
        return JNI_ERR;
    NSK_DISPLAY0("agentProc has been set\n\n");

    return JNI_OK;
}

}