--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test/hotspot/jtreg/vmTestbase/nsk/jvmti/scenarios/contention/TC05/tc05t001/tc05t001.c Thu May 24 17:12:15 2018 -0700
@@ -0,0 +1,369 @@
+/*
+ * 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
+
+/* ========================================================================== */
+
+static const jlong EXPECTED_TIMEOUT = 1;
+/*
+ * The expected timeout accuracy was already increased from 100000 to 300000.
+ * Please, do not increase it anymore if the test still fails with the message:
+ * "(waitedTime - waitTime) >= (EXPECTED_TIMEOUT * 1000000) - EXPECTED_TIMEOUT_ACCURACY_NS"
+ */
+static const jlong EXPECTED_TIMEOUT_ACCURACY_NS = 300000;
+
+static const jlong EXPECTED_ACCURACY = 10;
+
+/* scaffold objects */
+static jlong timeout = 0;
+
+/* test objects */
+static jthread thread = NULL;
+static jobject object_M = NULL;
+static volatile int waitEventsCount = 0;
+static volatile int waitedEventsCount = 0;
+static jlong waitTime = 0;
+static jlong waitThreadCpuTime = 0;
+static jlong waitedTime = 0;
+static jlong waitedThreadCpuTime = 0;
+
+/* ========================================================================== */
+
+void JNICALL
+MonitorWait(jvmtiEnv *jvmti, JNIEnv* jni,
+ jthread thr, jobject obj, jlong tout) {
+ char buffer[32];
+
+ if (!NSK_VERIFY(thr != NULL)) {
+ nsk_jvmti_setFailStatus();
+ return;
+ }
+
+ if (!NSK_VERIFY(obj != NULL)) {
+ nsk_jvmti_setFailStatus();
+ 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 (!NSK_JVMTI_VERIFY(NSK_CPP_STUB3(
+ GetThreadCpuTime, jvmti, thr, &waitThreadCpuTime))) {
+ nsk_jvmti_setFailStatus();
+ }
+ if (!NSK_JVMTI_VERIFY(
+ NSK_CPP_STUB2(GetTime, jvmti, &waitTime))) {
+ nsk_jvmti_setFailStatus();
+ }
+ waitEventsCount++;
+ NSK_DISPLAY0("MonitorWait event:\n");
+ NSK_DISPLAY3("\tthread: %p, object: %p, timeout: %s\n",
+ thr, obj, jlong_to_string(tout, buffer));
+ NSK_DISPLAY1("\ttime: %s\n",
+ jlong_to_string(waitTime, buffer));
+ NSK_DISPLAY1("\tthread CPU time: %s\n",
+ jlong_to_string(waitThreadCpuTime, buffer));
+
+ if (!NSK_VERIFY(tout == EXPECTED_TIMEOUT)) {
+ nsk_jvmti_setFailStatus();
+ }
+ }
+}
+
+void JNICALL
+MonitorWaited(jvmtiEnv *jvmti, JNIEnv* jni,
+ jthread thr, jobject obj, jboolean timed_out) {
+ char buffer[32];
+
+ if (!NSK_VERIFY(thr != NULL)) {
+ nsk_jvmti_setFailStatus();
+ return;
+ }
+
+ if (!NSK_VERIFY(obj != NULL)) {
+ nsk_jvmti_setFailStatus();
+ 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 (!NSK_JVMTI_VERIFY(NSK_CPP_STUB3(
+ GetThreadCpuTime, jvmti, thr, &waitedThreadCpuTime))) {
+ nsk_jvmti_setFailStatus();
+ }
+ if (!NSK_JVMTI_VERIFY(
+ NSK_CPP_STUB2(GetTime, jvmti, &waitedTime))) {
+ nsk_jvmti_setFailStatus();
+ }
+ waitedEventsCount++;
+ NSK_DISPLAY0("MonitorWaited event:\n");
+ NSK_DISPLAY3("\tthread: %p, object: %p, timed_out: %s\n",
+ thr, obj, (timed_out==JNI_TRUE) ? "true" : "false");
+ NSK_DISPLAY1("\tGetTime: %s\n",
+ jlong_to_string(waitedTime, buffer));
+ NSK_DISPLAY1("\tthread CPU time: %s\n",
+ jlong_to_string(waitedThreadCpuTime, buffer));
+ }
+}
+
+/* ========================================================================== */
+
+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 MonitorWait event */
+ if (!NSK_JVMTI_VERIFY(
+ NSK_CPP_STUB4(SetEventNotificationMode, jvmti, JVMTI_ENABLE,
+ JVMTI_EVENT_MONITOR_WAIT, NULL)))
+ return NSK_FALSE;
+
+ /* enable MonitorWaited event */
+ if (!NSK_JVMTI_VERIFY(
+ NSK_CPP_STUB4(SetEventNotificationMode, jvmti, JVMTI_ENABLE,
+ JVMTI_EVENT_MONITOR_WAITED, NULL)))
+ return NSK_FALSE;
+
+ 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();
+
+ return NSK_TRUE;
+}
+
+/* ========================================================================== */
+
+/* agent algorithm */
+static void JNICALL
+agentProc(jvmtiEnv* jvmti, JNIEnv* jni, void* arg) {
+ char buffer[32];
+
+ /* 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 MonitorWait events: %d\n", waitEventsCount);
+ if (!(NSK_VERIFY(waitEventsCount == 1))) {
+ nsk_jvmti_setFailStatus();
+ }
+
+ NSK_DISPLAY1("Number of MonitorWaited events: %d\n", waitedEventsCount);
+ if (!(NSK_VERIFY(waitedEventsCount == 1))) {
+ nsk_jvmti_setFailStatus();
+ }
+
+ NSK_DISPLAY1("Time frame between the events: %s ns\n",
+ jlong_to_string(waitedTime - waitTime, buffer));
+ if (!(NSK_VERIFY((waitedTime - waitTime) >= (EXPECTED_TIMEOUT * 1000000) - EXPECTED_TIMEOUT_ACCURACY_NS))) {
+#if (defined(WIN32) || defined(_WIN32))
+ /* Do not fail on Windows as spurious wakeups are expected. The JDK-6313903 was closed as "Won't Fix". */
+#else
+ nsk_jvmti_setFailStatus();
+#endif
+ printf("waitedTime: %"LL"d, waitTime: %"LL"d, waitedTime - waitTime: %"LL"d\n",
+ waitedTime, waitTime, waitedTime - waitTime);
+ }
+
+ NSK_DISPLAY1("Thread CPU time between the events: %s ns\n",
+ jlong_to_string(waitedThreadCpuTime - waitThreadCpuTime, buffer));
+ if (!(NSK_VERIFY((waitedThreadCpuTime - waitThreadCpuTime)
+ < (EXPECTED_ACCURACY * 1000000)))) {
+ nsk_jvmti_setFailStatus();
+ printf("waitedThreadCpuTime: %"LL"d, waitThreadCpuTime: %"LL"d, waitedThreadCpuTime - waitThreadCpuTime: %"LL"d\n",
+ waitedThreadCpuTime, waitThreadCpuTime, waitedThreadCpuTime - waitThreadCpuTime);
+ }
+
+ 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_tc05t001(JavaVM *jvm, char *options, void *reserved) {
+ return Agent_Initialize(jvm, options, reserved);
+}
+JNIEXPORT jint JNICALL Agent_OnAttach_tc05t001(JavaVM *jvm, char *options, void *reserved) {
+ return Agent_Initialize(jvm, options, reserved);
+}
+JNIEXPORT jint JNI_OnLoad_tc05t001(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_thread_cpu_time = 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;
+ 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