| /* |
| * 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 <stdlib.h> |
| #include <string.h> |
| #include "jni_tools.h" |
| #include "agent_common.h" |
| #include "jvmti_tools.h" |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /* ========================================================================== */ |
| |
| /* scaffold objects */ |
| static jlong timeout = 0; |
| |
| /* test objects */ |
| static jclass object_M = NULL; |
| static volatile int waitEventsCount = 0; |
| static volatile int waitedEventsCount = 0; |
| static volatile int enterEventsCount = 0; |
| static volatile int enteredEventsCount = 0; |
| static jrawMonitorID syncLock = NULL; |
| |
| |
| static jboolean lockSyncLock(jvmtiEnv* jvmti) { |
| jboolean status = NSK_JVMTI_VERIFY(NSK_CPP_STUB2(RawMonitorEnter, jvmti, syncLock)); |
| if (!status) |
| nsk_jvmti_setFailStatus(); |
| return status; |
| } |
| |
| static void unlockSyncLock(jvmtiEnv* jvmti) { |
| if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(RawMonitorExit, jvmti, syncLock))) |
| nsk_jvmti_setFailStatus(); |
| } |
| |
| |
| /* ========================================================================== */ |
| |
| void JNICALL |
| MonitorWait(jvmtiEnv *jvmti, JNIEnv* jni, |
| jthread thr, jobject obj, jlong tout) { |
| |
| if (!NSK_VERIFY(thr != NULL)) { |
| nsk_jvmti_setFailStatus(); |
| return; |
| } |
| |
| if (!NSK_VERIFY(obj != NULL)) { |
| nsk_jvmti_setFailStatus(); |
| return; |
| } |
| |
| /* check if event is for tested object */ |
| if (NSK_CPP_STUB3(IsInstanceOf, jni, obj, object_M)) { |
| if (lockSyncLock(jvmti)) { |
| waitEventsCount++; |
| unlockSyncLock(jvmti); |
| } |
| } |
| } |
| |
| void JNICALL |
| MonitorWaited(jvmtiEnv *jvmti, JNIEnv* jni, |
| jthread thr, jobject obj, jboolean timed_out) { |
| |
| if (!NSK_VERIFY(thr != NULL)) { |
| nsk_jvmti_setFailStatus(); |
| return; |
| } |
| |
| if (!NSK_VERIFY(obj != NULL)) { |
| nsk_jvmti_setFailStatus(); |
| return; |
| } |
| |
| /* check if event is for tested object */ |
| if (NSK_CPP_STUB3(IsInstanceOf, jni, obj, object_M)) { |
| if (lockSyncLock(jvmti)) { |
| waitedEventsCount++; |
| unlockSyncLock(jvmti); |
| } |
| } |
| } |
| |
| void JNICALL |
| MonitorContendedEnter(jvmtiEnv *jvmti, JNIEnv* jni, jthread thr, jobject obj) { |
| |
| if (!NSK_VERIFY(thr != NULL)) { |
| nsk_jvmti_setFailStatus(); |
| return; |
| } |
| |
| if (!NSK_VERIFY(obj != NULL)) { |
| nsk_jvmti_setFailStatus(); |
| return; |
| } |
| |
| /* check if event is for tested object */ |
| if (NSK_CPP_STUB3(IsSameObject, jni, object_M, obj)) { |
| jvmtiMonitorUsage usageInfo; |
| |
| if (lockSyncLock(jvmti)) { |
| enterEventsCount++; |
| unlockSyncLock(jvmti); |
| } |
| |
| if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB3(GetObjectMonitorUsage, |
| jvmti, obj, &usageInfo))) { |
| nsk_jvmti_setFailStatus(); |
| } else if (usageInfo.owner != NULL) { |
| if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2( |
| InterruptThread, jvmti, usageInfo.owner))) |
| nsk_jvmti_setFailStatus(); |
| } |
| } |
| } |
| |
| void JNICALL |
| MonitorContendedEntered(jvmtiEnv *jvmti, JNIEnv* jni, jthread thr, jobject obj) { |
| |
| if (!NSK_VERIFY(thr != NULL)) { |
| nsk_jvmti_setFailStatus(); |
| return; |
| } |
| |
| if (!NSK_VERIFY(obj != NULL)) { |
| nsk_jvmti_setFailStatus(); |
| return; |
| } |
| |
| /* check if event is for tested object */ |
| if (NSK_CPP_STUB3(IsSameObject, jni, object_M, obj)) { |
| if (lockSyncLock(jvmti)) { |
| enteredEventsCount++; |
| unlockSyncLock(jvmti); |
| } |
| } |
| } |
| |
| /* ========================================================================== */ |
| |
| static int prepare(jvmtiEnv* jvmti, JNIEnv* jni) { |
| const char* CLASS_NAME = "nsk/jvmti/scenarios/contention/TC04/tc04t001Thread"; |
| |
| NSK_DISPLAY0("Obtain tested object from debugee thread class\n"); |
| |
| if (!NSK_JNI_VERIFY(jni, (object_M = |
| NSK_CPP_STUB2(FindClass, jni, CLASS_NAME)) != NULL)) |
| return NSK_FALSE; |
| |
| if (!NSK_JNI_VERIFY(jni, (object_M = |
| NSK_CPP_STUB2(NewGlobalRef, jni, object_M)) != NULL)) |
| return NSK_FALSE; |
| |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB3(CreateRawMonitor, jvmti, "_syncLock", &syncLock))) |
| return NSK_FALSE; |
| |
| /* enable MonitorWait event */ |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB4(SetEventNotificationMode, jvmti, JVMTI_ENABLE, |
| JVMTI_EVENT_MONITOR_WAIT, NULL))) |
| nsk_jvmti_setFailStatus(); |
| |
| /* enable MonitorWaited event */ |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB4(SetEventNotificationMode, jvmti, JVMTI_ENABLE, |
| JVMTI_EVENT_MONITOR_WAITED, NULL))) |
| nsk_jvmti_setFailStatus(); |
| |
| /* enable MonitorContendedEnter event */ |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB4(SetEventNotificationMode, jvmti, JVMTI_ENABLE, |
| JVMTI_EVENT_MONITOR_CONTENDED_ENTER, NULL))) |
| nsk_jvmti_setFailStatus(); |
| |
| /* enable MonitorContendedEntered event */ |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB4(SetEventNotificationMode, jvmti, JVMTI_ENABLE, |
| JVMTI_EVENT_MONITOR_CONTENDED_ENTERED, NULL))) |
| nsk_jvmti_setFailStatus(); |
| |
| return NSK_TRUE; |
| } |
| |
| static int clean(jvmtiEnv* jvmti, JNIEnv* jni) { |
| |
| /* disable MonitorWait event */ |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB4(SetEventNotificationMode, jvmti, JVMTI_DISABLE, |
| JVMTI_EVENT_MONITOR_WAIT, NULL))) |
| nsk_jvmti_setFailStatus(); |
| |
| /* disable MonitorWaited event */ |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB4(SetEventNotificationMode, jvmti, JVMTI_DISABLE, |
| JVMTI_EVENT_MONITOR_WAITED, NULL))) |
| nsk_jvmti_setFailStatus(); |
| |
| /* disable MonitorContendedEnter event */ |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB4(SetEventNotificationMode, jvmti, JVMTI_DISABLE, |
| JVMTI_EVENT_MONITOR_CONTENDED_ENTER, NULL))) |
| nsk_jvmti_setFailStatus(); |
| |
| /* disable MonitorContendedEntered event */ |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB4(SetEventNotificationMode, jvmti, JVMTI_DISABLE, |
| JVMTI_EVENT_MONITOR_CONTENDED_ENTERED, NULL))) |
| nsk_jvmti_setFailStatus(); |
| |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB2(DestroyRawMonitor, jvmti, syncLock))) |
| nsk_jvmti_setFailStatus(); |
| |
| return NSK_TRUE; |
| } |
| |
| /* ========================================================================== */ |
| |
| /* agent algorithm */ |
| static void JNICALL |
| agentProc(jvmtiEnv* jvmti, JNIEnv* jni, void* arg) { |
| |
| /* wait for initial sync */ |
| if (!nsk_jvmti_waitForSync(timeout)) |
| return; |
| |
| if (!prepare(jvmti, jni)) { |
| nsk_jvmti_setFailStatus(); |
| return; |
| } |
| |
| /* resume debugee */ |
| if (!(NSK_VERIFY(nsk_jvmti_resumeSync()) && |
| NSK_VERIFY(nsk_jvmti_waitForSync(timeout)))) |
| return; |
| |
| // lock |
| if (lockSyncLock(jvmti)) { |
| NSK_DISPLAY1("Number of MonitorWait events: %d\n", waitEventsCount); |
| if (!NSK_VERIFY(waitEventsCount >= 200)) { |
| nsk_jvmti_setFailStatus(); |
| NSK_COMPLAIN1("Number of MonitorWait events: %d\n", waitEventsCount); |
| } |
| |
| NSK_DISPLAY1("Number of MonitorWaited events: %d\n", waitedEventsCount); |
| if (!NSK_VERIFY(waitedEventsCount >= 200)) { |
| nsk_jvmti_setFailStatus(); |
| NSK_COMPLAIN1("Number of MonitorWaited events: %d\n", waitedEventsCount); |
| } |
| |
| NSK_DISPLAY1("Number of MonitorContendedEnter events: %d\n", |
| enterEventsCount); |
| if (!NSK_VERIFY(enterEventsCount == 199)) { |
| nsk_jvmti_setFailStatus(); |
| NSK_COMPLAIN1("Number of MonitorContendedEnter events: %d\n", |
| enterEventsCount); |
| } |
| |
| NSK_DISPLAY1("Number of MonitorContendedEntered events: %d\n", |
| enteredEventsCount); |
| if (!NSK_VERIFY(enteredEventsCount == 199)) { |
| nsk_jvmti_setFailStatus(); |
| NSK_COMPLAIN1("Number of MonitorContendedEntered events: %d\n", |
| enteredEventsCount); |
| } |
| unlockSyncLock(jvmti); |
| } |
| |
| if (!clean(jvmti, jni)) { |
| nsk_jvmti_setFailStatus(); |
| return; |
| } |
| |
| /* resume debugee after last sync */ |
| if (!nsk_jvmti_resumeSync()) |
| return; |
| } |
| |
| /* ========================================================================== */ |
| |
| /* agent library initialization */ |
| #ifdef STATIC_BUILD |
| JNIEXPORT jint JNICALL Agent_OnLoad_tc04t001(JavaVM *jvm, char *options, void *reserved) { |
| return Agent_Initialize(jvm, options, reserved); |
| } |
| JNIEXPORT jint JNICALL Agent_OnAttach_tc04t001(JavaVM *jvm, char *options, void *reserved) { |
| return Agent_Initialize(jvm, options, reserved); |
| } |
| JNIEXPORT jint JNI_OnLoad_tc04t001(JavaVM *jvm, char *options, void *reserved) { |
| return JNI_VERSION_1_8; |
| } |
| #endif |
| jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) { |
| jvmtiEnv* jvmti = NULL; |
| jvmtiCapabilities caps; |
| jvmtiEventCallbacks callbacks; |
| |
| /* init framework and parse options */ |
| if (!NSK_VERIFY(nsk_jvmti_parseOptions(options))) |
| return JNI_ERR; |
| |
| timeout = nsk_jvmti_getWaitTime() * 60000; |
| NSK_DISPLAY1("Timeout: %d msc\n", (int)timeout); |
| |
| /* create JVMTI environment */ |
| if (!NSK_VERIFY((jvmti = |
| nsk_jvmti_createJVMTIEnv(jvm, reserved)) != NULL)) |
| return JNI_ERR; |
| |
| /* add capabilities */ |
| memset(&caps, 0, sizeof(caps)); |
| caps.can_generate_monitor_events = 1; |
| caps.can_get_monitor_info = 1; |
| caps.can_signal_thread = 1; |
| if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(AddCapabilities, jvmti, &caps))) |
| return JNI_ERR; |
| |
| memset(&callbacks, 0, sizeof(callbacks)); |
| callbacks.MonitorWait = &MonitorWait; |
| callbacks.MonitorWaited = &MonitorWaited; |
| callbacks.MonitorContendedEnter = &MonitorContendedEnter; |
| callbacks.MonitorContendedEntered = &MonitorContendedEntered; |
| 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 |
