97 lines
3.0 KiB
C++
97 lines
3.0 KiB
C++
/*
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* Copyright (c) 2004, 2022, 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 <stdio.h>
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#include <string.h>
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#include "jvmti.h"
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#include "jvmti_common.h"
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extern "C" {
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#define WAIT_START 100
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static jvmtiEnv *jvmti = NULL;
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static jint wait_time = 0;
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static jint state[] = {
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0, /* JVMTI_THREAD_STATUS_NOT_STARTED, */
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JVMTI_THREAD_STATE_SLEEPING,
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JVMTI_THREAD_STATE_TERMINATED /* JVMTI_THREAD_STATUS_ZOMBIE */
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};
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JNIEXPORT void JNICALL
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Java_thrstat03_init(JNIEnv *env, jclass cls, jint waitTime) {
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wait_time = waitTime * 60000;
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}
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JNIEXPORT jint JNICALL
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Agent_OnLoad(JavaVM *jvm, char *options, void *reserved) {
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jint res = jvm->GetEnv((void **) &jvmti, JVMTI_VERSION_1_1);
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if (res != JNI_OK || jvmti == NULL) {
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LOG("Wrong result of a valid call to GetEnv!\n");
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return JNI_ERR;
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}
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return JNI_OK;
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}
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JNIEXPORT jboolean JNICALL
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Java_thrstat03_check(JNIEnv *jni, jclass cls, jthread thread, jint statInd) {
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jboolean result = JNI_TRUE;
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jrawMonitorID wait_lock;
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jint thr_state = 0;
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if (jvmti == NULL) {
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LOG("JVMTI client was not properly loaded!\n");
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return JNI_FALSE;
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}
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wait_lock = create_raw_monitor(jvmti, "_wait_lock");
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for (int i = WAIT_START; i < wait_time; i <<= 1) {
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thr_state = get_thread_state(jvmti, jni, thread);
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LOG(">>> thread state: %s (%d)\n", TranslateState(thr_state), thr_state);
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if ((thr_state & JVMTI_THREAD_STATE_RUNNABLE) == 0) {
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break;
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}
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RawMonitorLocker rml = RawMonitorLocker(jvmti, jni, wait_lock);
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rml.wait(i);
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}
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destroy_raw_monitor(jvmti, jni, wait_lock);
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/* We expect that thread is NOT_STARTED if statInd == 0 */
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if (statInd == 0 && thr_state != state[statInd]) {
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result = JNI_FALSE;
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} else if (statInd != 0 && (thr_state & state[statInd]) == 0) {
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result = JNI_FALSE;
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}
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if (result == JNI_FALSE) {
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LOG("Wrong state: %s (%d)\n", TranslateState(thr_state), thr_state);
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LOG(" expected: %s (%d)\n", TranslateState(state[statInd]), state[statInd]);
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}
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return result;
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}
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}
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