998d0baab0
Reviewed-by: jwaters, gli, coleenp, lmesnik
109 lines
3.5 KiB
C++
109 lines
3.5 KiB
C++
/*
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* Copyright (c) 2003, 2024, 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.hpp"
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extern "C" {
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typedef struct {
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const char *name;
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jboolean is_name_exact;
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jint priority;
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jboolean is_daemon;
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} info;
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static jvmtiEnv *jvmti_env = nullptr;
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static info expected_info_array[] = {
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{"main", JNI_TRUE,JVMTI_THREAD_NORM_PRIORITY, JNI_FALSE},
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{"thread1",JNI_TRUE,JVMTI_THREAD_MIN_PRIORITY + 2, JNI_TRUE},
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{"Thread-", JNI_FALSE,JVMTI_THREAD_MIN_PRIORITY, JNI_TRUE},
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{"vthread", JNI_FALSE,JVMTI_THREAD_NORM_PRIORITY, JNI_TRUE}
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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;
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jvmtiCapabilities caps;
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res = jvm->GetEnv((void **) &jvmti_env, JVMTI_VERSION_1_1);
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if (res != JNI_OK || jvmti_env == nullptr) {
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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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memset(&caps, 0, sizeof(caps));
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caps.can_support_virtual_threads = 1;
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res = jvmti_env->AddCapabilities(&caps);
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if (res != JVMTI_ERROR_NONE) {
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LOG("error in JVMTI AddCapabilities: %d\n", res);
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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_thrinfo01_checkInfo0(JNIEnv *jni, jclass cls, jthread thread, jthreadGroup thread_group, jint expected_idx) {
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jboolean result = JNI_TRUE;
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jvmtiThreadInfo inf;
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LOG("Checking thread info for\n");
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print_thread_info(jvmti_env, jni, thread);
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info expected_info = expected_info_array[expected_idx];
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check_jvmti_status(jni, jvmti_env->GetThreadInfo(thread, &inf), "Error in GetThreadInfo.");
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if (inf.name == nullptr) {
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LOG("Thread %s: incorrect name in null\n", expected_info.name);
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result = JNI_FALSE;
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}
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if (strstr(inf.name, expected_info.name) != inf.name ||
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(expected_info.is_name_exact && strlen(inf.name) != strlen(expected_info.name))) {
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LOG("Thread %s: incorrect name: %s\n", expected_info.name, inf.name);
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result = JNI_FALSE;
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}
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if (inf.priority != expected_info.priority) {
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LOG("Thread %s: priority expected: %d, got: %d\n", expected_info.name, expected_info.priority, inf.priority);
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result = JNI_FALSE;
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}
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if (inf.is_daemon != expected_info.is_daemon) {
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LOG("Thread %s: is_daemon expected: %d, got: %d\n", expected_info.name, expected_info.is_daemon, inf.is_daemon);
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result = JNI_FALSE;
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}
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if (!jni->IsSameObject(thread_group, inf.thread_group)) {
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LOG("Thread %s: invalid thread thread_group\n", expected_info.name);
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result = JNI_FALSE;
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}
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LOG("Check completed.\n");
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return result;
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}
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}
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