| /* |
| * 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 <string.h> |
| #include "jvmti.h" |
| #include "agent_common.h" |
| #include "jni_tools.h" |
| #include "jvmti_tools.h" |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /* ============================================================================= */ |
| |
| /* scaffold objects */ |
| static jlong timeout = 0; |
| |
| /* This is how long we verify that the thread has really suspended (in ms) */ |
| static jlong verificationTime = 5 * 1000; |
| |
| /* constant names */ |
| #define THREAD_NAME "TestedThread" |
| |
| /* constants */ |
| #define EVENTS_COUNT 1 |
| |
| /* events list */ |
| static jvmtiEvent eventsList[EVENTS_COUNT] = { |
| JVMTI_EVENT_THREAD_END |
| }; |
| |
| static volatile int eventsReceived = 0; |
| static jthread testedThread = NULL; |
| |
| /* ============================================================================= */ |
| |
| /** Agent algorithm. */ |
| static void JNICALL |
| agentProc(jvmtiEnv* jvmti, JNIEnv* jni, void* arg) { |
| |
| NSK_DISPLAY0("Wait for thread to start\n"); |
| if (!nsk_jvmti_waitForSync(timeout)) |
| return; |
| |
| /* perform testing */ |
| { |
| NSK_DISPLAY1("Find thread: %s\n", THREAD_NAME); |
| if (!NSK_VERIFY((testedThread = |
| nsk_jvmti_threadByName(THREAD_NAME)) != NULL)) |
| return; |
| NSK_DISPLAY1(" ... found thread: %p\n", (void*)testedThread); |
| |
| eventsReceived = 0; |
| NSK_DISPLAY1("Enable event: %s\n", "THREAD_END"); |
| if (!nsk_jvmti_enableEvents(JVMTI_ENABLE, EVENTS_COUNT, eventsList, NULL)) |
| return; |
| |
| NSK_DISPLAY1("Suspend thread: %p\n", (void*)testedThread); |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB2(SuspendThread, jvmti, testedThread))) { |
| nsk_jvmti_setFailStatus(); |
| return; |
| } |
| |
| NSK_DISPLAY0("Let thread to run and finish\n"); |
| if (!nsk_jvmti_resumeSync()) |
| return; |
| |
| NSK_DISPLAY1("Check that THREAD_END event NOT received for timeout: %ld ms\n", (long)verificationTime); |
| { |
| jlong delta = 1000; |
| jlong time; |
| for (time = 0; time < verificationTime; time += delta) { |
| if (eventsReceived > 0) { |
| NSK_COMPLAIN0("Thread ran and finished after suspension\n"); |
| nsk_jvmti_setFailStatus(); |
| break; |
| } |
| nsk_jvmti_sleep(delta); |
| } |
| } |
| |
| NSK_DISPLAY1("Disable event: %s\n", "THREAD_END"); |
| if (!nsk_jvmti_enableEvents(JVMTI_DISABLE, EVENTS_COUNT, eventsList, NULL)) |
| return; |
| |
| NSK_DISPLAY1("Resume thread: %p\n", (void*)testedThread); |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB2(ResumeThread, jvmti, testedThread))) { |
| nsk_jvmti_setFailStatus(); |
| } |
| |
| NSK_DISPLAY0("Wait for thread to finish\n"); |
| if (!nsk_jvmti_waitForSync(timeout)) |
| return; |
| |
| NSK_DISPLAY0("Delete thread reference\n"); |
| NSK_TRACE(NSK_CPP_STUB2(DeleteGlobalRef, jni, testedThread)); |
| } |
| |
| NSK_DISPLAY0("Let debugee to finish\n"); |
| if (!nsk_jvmti_resumeSync()) |
| return; |
| } |
| |
| /* ============================================================================= */ |
| |
| /** THREAD_END callback. */ |
| JNIEXPORT void JNICALL |
| callbackThreadEnd(jvmtiEnv* jvmti, JNIEnv* jni, jthread thread) { |
| /* check if event is for tested thread */ |
| if (thread != NULL && |
| NSK_CPP_STUB3(IsSameObject, jni, testedThread, thread)) { |
| NSK_DISPLAY1(" ... received THREAD_END event for tested thread: %p\n", (void*)thread); |
| eventsReceived++; |
| } else { |
| NSK_DISPLAY1(" ... received THREAD_END event for unknown thread: %p\n", (void*)thread); |
| } |
| } |
| |
| /* ============================================================================= */ |
| |
| /** Agent library initialization. */ |
| #ifdef STATIC_BUILD |
| JNIEXPORT jint JNICALL Agent_OnLoad_suspendthrd002(JavaVM *jvm, char *options, void *reserved) { |
| return Agent_Initialize(jvm, options, reserved); |
| } |
| JNIEXPORT jint JNICALL Agent_OnAttach_suspendthrd002(JavaVM *jvm, char *options, void *reserved) { |
| return Agent_Initialize(jvm, options, reserved); |
| } |
| JNIEXPORT jint JNI_OnLoad_suspendthrd002(JavaVM *jvm, char *options, void *reserved) { |
| return JNI_VERSION_1_8; |
| } |
| #endif |
| jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) { |
| jvmtiEnv* jvmti = NULL; |
| |
| /* init framework and parse options */ |
| if (!NSK_VERIFY(nsk_jvmti_parseOptions(options))) |
| return JNI_ERR; |
| |
| timeout = nsk_jvmti_getWaitTime() * 60 * 1000; |
| |
| /* create JVMTI environment */ |
| if (!NSK_VERIFY((jvmti = |
| nsk_jvmti_createJVMTIEnv(jvm, reserved)) != NULL)) |
| return JNI_ERR; |
| |
| /* add specific capabilities for suspending thread */ |
| { |
| jvmtiCapabilities suspendCaps; |
| memset(&suspendCaps, 0, sizeof(suspendCaps)); |
| suspendCaps.can_suspend = 1; |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB2(AddCapabilities, jvmti, &suspendCaps))) |
| return JNI_ERR; |
| } |
| |
| /* set callbacks for THREAD_END event */ |
| { |
| jvmtiEventCallbacks callbacks; |
| memset(&callbacks, 0, sizeof(callbacks)); |
| callbacks.ThreadEnd = callbackThreadEnd; |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB3(SetEventCallbacks, jvmti, &callbacks, sizeof(callbacks)))) |
| return JNI_ERR; |
| } |
| |
| /* register agent proc and arg */ |
| if (!NSK_VERIFY(nsk_jvmti_setAgentProc(agentProc, NULL))) |
| return JNI_ERR; |
| |
| return JNI_OK; |
| } |
| |
| /* ============================================================================= */ |
| |
| #ifdef __cplusplus |
| } |
| #endif |
