194 lines
6.3 KiB
C++
194 lines
6.3 KiB
C++
/*
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* Copyright (c) 2003, 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 <string.h>
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#include "jvmti.h"
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#include "agent_common.hpp"
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#include "jni_tools.hpp"
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#include "jvmti_tools.hpp"
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extern "C" {
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/* ============================================================================= */
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/* scaffold objects */
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static jlong timeout = 0;
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/* This is how long we verify that the thread has really suspended (in ms) */
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static jlong verificationTime = 5 * 1000;
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/* constant names */
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#define THREAD_NAME "TestedThread"
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/* constants */
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#define EVENTS_COUNT 1
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/* events list */
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static jvmtiEvent eventsList[EVENTS_COUNT] = {
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JVMTI_EVENT_THREAD_END
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};
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static volatile int eventsReceived = 0;
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static jthread testedThread = nullptr;
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/* ============================================================================= */
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/** Agent algorithm. */
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static void JNICALL
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agentProc(jvmtiEnv* jvmti, JNIEnv* jni, void* arg) {
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NSK_DISPLAY0("Wait for thread to start\n");
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if (!nsk_jvmti_waitForSync(timeout))
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return;
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/* perform testing */
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{
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NSK_DISPLAY1("Find thread: %s\n", THREAD_NAME);
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if (!NSK_VERIFY((testedThread =
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nsk_jvmti_threadByName(THREAD_NAME)) != nullptr))
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return;
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NSK_DISPLAY1(" ... found thread: %p\n", (void*)testedThread);
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eventsReceived = 0;
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NSK_DISPLAY1("Enable event: %s\n", "THREAD_END");
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if (!nsk_jvmti_enableEvents(JVMTI_ENABLE, EVENTS_COUNT, eventsList, nullptr))
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return;
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NSK_DISPLAY1("Suspend thread: %p\n", (void*)testedThread);
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if (!NSK_JVMTI_VERIFY(jvmti->SuspendThread(testedThread))) {
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nsk_jvmti_setFailStatus();
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return;
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}
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NSK_DISPLAY0("Let thread to run and finish\n");
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if (!nsk_jvmti_resumeSync())
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return;
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NSK_DISPLAY1("Check that THREAD_END event NOT received for timeout: %ld ms\n", (long)verificationTime);
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{
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jlong delta = 1000;
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jlong time;
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for (time = 0; time < verificationTime; time += delta) {
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if (eventsReceived > 0) {
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NSK_COMPLAIN0("Thread ran and finished after suspension\n");
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nsk_jvmti_setFailStatus();
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break;
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}
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nsk_jvmti_sleep(delta);
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}
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}
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NSK_DISPLAY1("Disable event: %s\n", "THREAD_END");
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if (!nsk_jvmti_enableEvents(JVMTI_DISABLE, EVENTS_COUNT, eventsList, nullptr))
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return;
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NSK_DISPLAY1("Resume thread: %p\n", (void*)testedThread);
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if (!NSK_JVMTI_VERIFY(jvmti->ResumeThread(testedThread))) {
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nsk_jvmti_setFailStatus();
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}
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NSK_DISPLAY0("Wait for thread to finish\n");
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if (!nsk_jvmti_waitForSync(timeout))
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return;
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NSK_DISPLAY0("Delete thread reference\n");
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NSK_TRACE(jni->DeleteGlobalRef(testedThread));
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}
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NSK_DISPLAY0("Let debugee to finish\n");
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if (!nsk_jvmti_resumeSync())
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return;
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}
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/* ============================================================================= */
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/** THREAD_END callback. */
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JNIEXPORT void JNICALL
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callbackThreadEnd(jvmtiEnv* jvmti, JNIEnv* jni, jthread thread) {
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/* check if event is for tested thread */
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if (thread != nullptr &&
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jni->IsSameObject(testedThread, thread)) {
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NSK_DISPLAY1(" ... received THREAD_END event for tested thread: %p\n", (void*)thread);
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eventsReceived++;
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} else {
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NSK_DISPLAY1(" ... received THREAD_END event for unknown thread: %p\n", (void*)thread);
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}
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}
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/* ============================================================================= */
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/** Agent library initialization. */
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#ifdef STATIC_BUILD
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JNIEXPORT jint JNICALL Agent_OnLoad_suspendthrd002(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_suspendthrd002(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_suspendthrd002(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 *jvm, char *options, void *reserved) {
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jvmtiEnv* jvmti = nullptr;
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/* init framework and parse options */
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if (!NSK_VERIFY(nsk_jvmti_parseOptions(options)))
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return JNI_ERR;
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timeout = nsk_jvmti_getWaitTime() * 60 * 1000;
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/* create JVMTI environment */
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if (!NSK_VERIFY((jvmti =
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nsk_jvmti_createJVMTIEnv(jvm, reserved)) != nullptr))
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return JNI_ERR;
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/* add specific capabilities for suspending thread */
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{
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jvmtiCapabilities suspendCaps;
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memset(&suspendCaps, 0, sizeof(suspendCaps));
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suspendCaps.can_suspend = 1;
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if (!NSK_JVMTI_VERIFY(jvmti->AddCapabilities(&suspendCaps)))
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return JNI_ERR;
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}
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/* set callbacks for THREAD_END event */
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{
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jvmtiEventCallbacks callbacks;
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memset(&callbacks, 0, sizeof(callbacks));
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callbacks.ThreadEnd = callbackThreadEnd;
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if (!NSK_JVMTI_VERIFY(jvmti->SetEventCallbacks(&callbacks, sizeof(callbacks))))
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return JNI_ERR;
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}
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/* register agent proc and arg */
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if (!NSK_VERIFY(nsk_jvmti_setAgentProc(agentProc, 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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}
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