106 lines
3.7 KiB
C++
106 lines
3.7 KiB
C++
/*
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* Copyright (c) 2008, 2024, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include "jvmti_tools.hpp"
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#include "agent_common.hpp"
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#define PASSED 0
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#define STATUS_FAILED 2
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extern "C" {
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static jvmtiEnv* gJvmti = nullptr;
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static volatile jint gEventFlags = 0;
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void JNICALL
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resourceExhausted(jvmtiEnv *jvmti_env,
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JNIEnv* jni_env,
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jint flags,
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const void* reserved,
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const char* description)
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{
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NSK_DISPLAY1("Agent: ResourceExhausted detected: %s\n", description);
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if (flags & JVMTI_RESOURCE_EXHAUSTED_OOM_ERROR) NSK_DISPLAY0("Agent: JVMTI_RESOURCE_EXHAUSTED_OOM_ERROR\n");
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if (flags & JVMTI_RESOURCE_EXHAUSTED_JAVA_HEAP) NSK_DISPLAY0("Agent: JVMTI_RESOURCE_EXHAUSTED_JAVA_HEAP\n");
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if (flags & JVMTI_RESOURCE_EXHAUSTED_THREADS) NSK_DISPLAY0("Agent: JVMTI_RESOURCE_EXHAUSTED_THREADS\n");
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gEventFlags = flags;
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}
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JNIEXPORT jint JNICALL
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Java_nsk_jvmti_ResourceExhausted_Helper_getExhaustedEventFlags(JNIEnv* env, jclass cls)
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{
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return gEventFlags;
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}
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JNIEXPORT void JNICALL
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Java_nsk_jvmti_ResourceExhausted_Helper_resetExhaustedEvent(JNIEnv* env, jclass cls)
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{
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gEventFlags = 0;
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}
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#ifdef STATIC_BUILD
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JNIEXPORT jint JNICALL Agent_OnLoad_resexhausted(JavaVM *jvm, char *options, void *reserved) {
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return Agent_Initialize(jvm, options, reserved);
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}
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JNIEXPORT jint JNICALL Agent_OnAttach_resexhausted(JavaVM *jvm, char *options, void *reserved) {
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return Agent_Initialize(jvm, options, reserved);
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}
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JNIEXPORT jint JNI_OnLoad_resexhausted(JavaVM *jvm, char *options, void *reserved) {
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return JNI_VERSION_1_8;
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}
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#endif
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jint Agent_Initialize(JavaVM *vm, char *options, void *reserved)
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{
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jvmtiEventCallbacks callbacks;
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jvmtiCapabilities capabilities;
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if (!NSK_VERIFY(nsk_jvmti_parseOptions(options)))
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return JNI_ERR;
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if (!NSK_VERIFY((gJvmti = nsk_jvmti_createJVMTIEnv(vm, reserved)) != nullptr))
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return JNI_ERR;
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memset(&capabilities, 0, sizeof(jvmtiCapabilities));
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capabilities.can_generate_resource_exhaustion_heap_events = 1;
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capabilities.can_generate_resource_exhaustion_threads_events = 1;
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if (!NSK_JVMTI_VERIFY(gJvmti->AddCapabilities(&capabilities)))
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return JNI_ERR;
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memset((void *)&callbacks, 0, sizeof(jvmtiEventCallbacks));
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callbacks.ResourceExhausted = resourceExhausted;
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if (!NSK_JVMTI_VERIFY(gJvmti->SetEventCallbacks(&callbacks, sizeof(callbacks))))
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return JNI_ERR;
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if (!NSK_JVMTI_VERIFY(gJvmti->SetEventNotificationMode(JVMTI_ENABLE,
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JVMTI_EVENT_RESOURCE_EXHAUSTED,
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nullptr)))
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return JNI_ERR;
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return JNI_OK;
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}
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}
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