--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test/hotspot/jtreg/vmTestbase/nsk/jvmti/scenarios/contention/TC02/tc02t001/tc02t001.cpp Tue Aug 28 14:37:34 2018 -0700
@@ -0,0 +1,391 @@
+/*
+ * 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 jthread thread = NULL;
+static jobject object_M = NULL;
+/* line numbers of "synchronized (M)" clauses in java part of the test */
+static jint lines[] = { 127, 132, 137 };
+static volatile int enterEventsCount = 0;
+static volatile int enteredEventsCount = 0;
+
+/* ========================================================================== */
+
+static jint findLineNumber(jvmtiEnv *jvmti, jthread thread) {
+ jmethodID method = NULL;
+ jlocation location;
+ jvmtiLineNumberEntry* table = NULL;
+ jint count = 0;
+ jint line = 0;
+ int i;
+
+ if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB5(
+ GetFrameLocation, jvmti, thread, 0, &method, &location)))
+ return 0;
+
+ if (!NSK_VERIFY(method != NULL))
+ return 0;
+
+ if (!NSK_VERIFY(location != -1))
+ return 0;
+
+ if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB4(
+ GetLineNumberTable, jvmti, method, &count, &table)))
+ return 0;
+
+ if (!NSK_VERIFY(table != NULL))
+ return 0;
+
+ if (!NSK_VERIFY(count > 0))
+ return 0;
+
+ for (i = 0; i < count; i++) {
+ if (location < table[i].start_location) {
+ break;
+ }
+ }
+
+ line = table[i-1].line_number;
+
+ if (table != NULL) {
+ if (!NSK_JVMTI_VERIFY(
+ NSK_CPP_STUB2(Deallocate, jvmti, (unsigned char*)table)))
+ return 0;
+ }
+
+ return line;
+}
+
+/* ========================================================================== */
+
+void JNICALL
+MonitorContendedEnter(jvmtiEnv *jvmti, JNIEnv* jni, jthread thr, jobject obj) {
+ jint line = 0;
+
+ if (!NSK_VERIFY(thr != NULL)) {
+ nsk_jvmti_setFailStatus();
+ NSK_COMPLAIN1("MonitorContendedEnter event: thread=%p\n", thr);
+ return;
+ }
+
+ if (!NSK_VERIFY(obj != NULL)) {
+ nsk_jvmti_setFailStatus();
+ NSK_COMPLAIN1("MonitorContendedEnter event: object=%p\n", obj);
+ return;
+ }
+
+ /* check if event is for tested thread and object */
+ if (NSK_CPP_STUB3(IsSameObject, jni, thread, thr) &&
+ NSK_CPP_STUB3(IsSameObject, jni, object_M, obj)) {
+
+ if (!(line = findLineNumber(jvmti, thread))) {
+ nsk_jvmti_setFailStatus();
+ NSK_COMPLAIN2("MonitorContendedEnter event: thread=%p, object=%p\n",
+ thr, obj);
+ return;
+ }
+
+ NSK_DISPLAY3("MonitorContendedEnter event: thread=%p, object=%p, line=%d\n",
+ thr, obj, line);
+
+ /* workaround of 4527285 bug: in -Xint mode GetFrameLocation
+ returns the location after the monitor enter.
+ */
+ if (!NSK_VERIFY(line == lines[enterEventsCount] ||
+ line == (lines[enterEventsCount] + 1))) {
+ nsk_jvmti_setFailStatus();
+ NSK_COMPLAIN3("MonitorContendedEnter event: thread=%p, object=%p, line=%d\n",
+ thr, obj, line);
+ }
+
+ enterEventsCount++;
+ }
+}
+
+void JNICALL
+MonitorContendedEntered(jvmtiEnv *jvmti, JNIEnv* jni, jthread thr, jobject obj) {
+ jint line = 0;
+
+ if (!NSK_VERIFY(thr != NULL)) {
+ nsk_jvmti_setFailStatus();
+ NSK_COMPLAIN1("MonitorContendedEntered event: thread=%p\n", thr);
+ return;
+ }
+
+ if (!NSK_VERIFY(obj != NULL)) {
+ nsk_jvmti_setFailStatus();
+ NSK_COMPLAIN1("MonitorContendedEntered event: object=%p\n", obj);
+ return;
+ }
+
+ /* check if event is for tested thread and object */
+ if (NSK_CPP_STUB3(IsSameObject, jni, thread, thr) &&
+ NSK_CPP_STUB3(IsSameObject, jni, object_M, obj)) {
+
+ if (!(line = findLineNumber(jvmti, thread))) {
+ nsk_jvmti_setFailStatus();
+ NSK_COMPLAIN2("MonitorContendedEntered event: thread=%p, object=%p\n",
+ thr, obj);
+ return;
+ }
+
+ NSK_DISPLAY3("MonitorContendedEntered event: thread=%p, object=%p, line=%d\n",
+ thr, obj, line);
+
+ /* workaround of 4527285 bug: in -Xint mode GetFrameLocation
+ returns the location after the monitor enter.
+ */
+ if (!NSK_VERIFY(line == lines[enteredEventsCount] ||
+ line == (lines[enteredEventsCount] + 1))) {
+ nsk_jvmti_setFailStatus();
+ NSK_COMPLAIN3("MonitorContendedEntered event: thread=%p, object=%p, line=%d\n",
+ thr, obj, line);
+ }
+
+ enteredEventsCount++;
+ }
+}
+
+/* ========================================================================== */
+
+static int prepare(jvmtiEnv* jvmti, JNIEnv* jni) {
+ const char* THREAD_NAME = "Debuggee Thread";
+ const char* FIELD_SIG = "Ljava/lang/Object;";
+ jvmtiThreadInfo info;
+ jthread *threads = NULL;
+ jint threads_count = 0;
+ jfieldID field = NULL;
+ jclass klass = NULL;
+ int i;
+
+ NSK_DISPLAY0("Prepare: find tested thread\n");
+
+ /* get all live threads */
+ if (!NSK_JVMTI_VERIFY(
+ NSK_CPP_STUB3(GetAllThreads, jvmti, &threads_count, &threads)))
+ return NSK_FALSE;
+
+ if (!NSK_VERIFY(threads_count > 0 && threads != NULL))
+ return NSK_FALSE;
+
+ /* find tested thread */
+ for (i = 0; i < threads_count; i++) {
+ if (!NSK_VERIFY(threads[i] != NULL))
+ return NSK_FALSE;
+
+ /* get thread information */
+ if (!NSK_JVMTI_VERIFY(
+ NSK_CPP_STUB3(GetThreadInfo, jvmti, threads[i], &info)))
+ return NSK_FALSE;
+
+ NSK_DISPLAY3(" thread #%d (%s): %p\n", i, info.name, threads[i]);
+
+ /* find by name */
+ if (info.name != NULL && (strcmp(info.name, THREAD_NAME) == 0)) {
+ thread = threads[i];
+ }
+
+ if (info.name != NULL) {
+ if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(
+ Deallocate, jvmti, (unsigned char*)info.name)))
+ return NSK_FALSE;
+ }
+ }
+
+ /* deallocate threads list */
+ if (!NSK_JVMTI_VERIFY(
+ NSK_CPP_STUB2(Deallocate, jvmti, (unsigned char*)threads)))
+ return NSK_FALSE;
+
+ if (thread == NULL) {
+ NSK_COMPLAIN0("Debuggee thread not found");
+ return NSK_FALSE;
+ }
+
+ /* make thread accessable for a long time */
+ if (!NSK_JNI_VERIFY(jni, (thread =
+ NSK_CPP_STUB2(NewGlobalRef, jni, thread)) != NULL))
+ return NSK_FALSE;
+
+ /* get tested thread class */
+ if (!NSK_JNI_VERIFY(jni, (klass =
+ NSK_CPP_STUB2(GetObjectClass, jni, thread)) != NULL))
+ return NSK_FALSE;
+
+ /* get tested thread field 'M' */
+ if (!NSK_JNI_VERIFY(jni, (field =
+ NSK_CPP_STUB4(GetFieldID, jni, klass, "M", FIELD_SIG)) != NULL))
+ return NSK_FALSE;
+
+ if (!NSK_JNI_VERIFY(jni, (object_M =
+ NSK_CPP_STUB3(GetObjectField, jni, thread, field)) != NULL))
+ return NSK_FALSE;
+
+ /* make object accessable for a long time */
+ if (!NSK_JNI_VERIFY(jni, (object_M =
+ NSK_CPP_STUB2(NewGlobalRef, jni, object_M)) != NULL))
+ return NSK_FALSE;
+
+ /* enable MonitorContendedEntered event */
+ if (!NSK_JVMTI_VERIFY(
+ NSK_CPP_STUB4(SetEventNotificationMode, jvmti, JVMTI_ENABLE,
+ JVMTI_EVENT_MONITOR_CONTENDED_ENTER, NULL)))
+ return NSK_FALSE;
+
+ /* enable MonitorContendedEntered event */
+ if (!NSK_JVMTI_VERIFY(
+ NSK_CPP_STUB4(SetEventNotificationMode, jvmti, JVMTI_ENABLE,
+ JVMTI_EVENT_MONITOR_CONTENDED_ENTERED, NULL)))
+ return NSK_FALSE;
+
+ return NSK_TRUE;
+}
+
+static int clean(jvmtiEnv* jvmti, JNIEnv* jni) {
+
+ /* disable MonitorContendedEntered event */
+ if (!NSK_JVMTI_VERIFY(
+ NSK_CPP_STUB4(SetEventNotificationMode, jvmti, JVMTI_DISABLE,
+ JVMTI_EVENT_MONITOR_CONTENDED_ENTERED, NULL)))
+ 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 to catch MonitorContendedEntered events */
+ if (!(NSK_VERIFY(nsk_jvmti_resumeSync()) &&
+ NSK_VERIFY(nsk_jvmti_waitForSync(timeout))))
+ return;
+
+ NSK_DISPLAY1("Number of MonitorContendedEnter events: %d\n",
+ enterEventsCount);
+
+ if (!(NSK_VERIFY(enterEventsCount == 3))) {
+ nsk_jvmti_setFailStatus();
+ }
+
+ NSK_DISPLAY1("Number of MonitorContendedEntered events: %d\n",
+ enteredEventsCount);
+
+ if (!(NSK_VERIFY(enteredEventsCount == 3))) {
+ nsk_jvmti_setFailStatus();
+ }
+
+ 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_tc02t001(JavaVM *jvm, char *options, void *reserved) {
+ return Agent_Initialize(jvm, options, reserved);
+}
+JNIEXPORT jint JNICALL Agent_OnAttach_tc02t001(JavaVM *jvm, char *options, void *reserved) {
+ return Agent_Initialize(jvm, options, reserved);
+}
+JNIEXPORT jint JNI_OnLoad_tc02t001(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_line_numbers = 1;
+ if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(AddCapabilities, jvmti, &caps)))
+ return JNI_ERR;
+
+ memset(&callbacks, 0, sizeof(callbacks));
+ 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