| /* |
| * Copyright (c) 2003, 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 <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include "jvmti.h" |
| #include "agent_common.h" |
| #include "JVMTITools.h" |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| #ifndef JNI_ENV_ARG |
| |
| #ifdef __cplusplus |
| #define JNI_ENV_ARG(x, y) y |
| #define JNI_ENV_PTR(x) x |
| #else |
| #define JNI_ENV_ARG(x,y) x, y |
| #define JNI_ENV_PTR(x) (*x) |
| #endif |
| |
| #endif |
| |
| #define PASSED 0 |
| #define STATUS_FAILED 2 |
| |
| typedef struct { |
| int cnt; |
| char **thrNames; |
| } info; |
| |
| static jvmtiEnv *jvmti; |
| static jrawMonitorID lock1; |
| static jrawMonitorID lock2; |
| static jboolean printdump = JNI_FALSE; |
| static jint result = PASSED; |
| static jvmtiThreadInfo inf; |
| static int sys_cnt; |
| static char *names0[] = {"main"}; |
| static char *names1[] = {"main", "thread1"}; |
| static char *names2[] = {"main", "Thread-"}; |
| static info thrInfo[] = { |
| {1, names0}, {1, names0}, {2, names1}, {1, names0}, {2, names2} |
| }; |
| |
| jthread jthr(JNIEnv *env) { |
| jclass thrClass; |
| jmethodID cid; |
| jthread res; |
| thrClass = JNI_ENV_PTR(env)->FindClass(JNI_ENV_ARG(env, |
| "java/lang/Thread")); |
| cid = JNI_ENV_PTR(env)->GetMethodID(JNI_ENV_ARG(env, thrClass), |
| "<init>", "()V"); |
| res = JNI_ENV_PTR(env)->NewObject(JNI_ENV_ARG(env, thrClass), cid); |
| return res; |
| } |
| |
| static void JNICALL |
| sys_thread(jvmtiEnv* jvmti, JNIEnv* jni, void *p) { |
| jvmtiError err; |
| |
| err = (*jvmti)->RawMonitorEnter(jvmti, lock2); |
| if (err != JVMTI_ERROR_NONE) { |
| printf("Failed to enter raw monitor 2 (thread): %s (%d)\n", |
| TranslateError(err), err); |
| result = STATUS_FAILED; |
| } |
| |
| /* allows the main thread to wait until the child thread is running */ |
| err = (*jvmti)->RawMonitorEnter(jvmti, lock1); |
| if (err != JVMTI_ERROR_NONE) { |
| printf("Failed to enter raw monitor 1 (thread): %s (%d)\n", |
| TranslateError(err), err); |
| result = STATUS_FAILED; |
| } |
| err = (*jvmti)->RawMonitorNotify(jvmti, lock1); |
| if (err != JVMTI_ERROR_NONE) { |
| printf("Failed to notify raw monitor (thread): %s (%d)\n", |
| TranslateError(err), err); |
| result = STATUS_FAILED; |
| } |
| err = (*jvmti)->RawMonitorExit(jvmti, lock1); |
| if (err != JVMTI_ERROR_NONE) { |
| printf("Failed to exit raw monitor 1 (thread): %s (%d)\n", |
| TranslateError(err), err); |
| result = STATUS_FAILED; |
| } |
| |
| /* keeps the child thread from exiting */ |
| err = (*jvmti)->RawMonitorWait(jvmti, lock2, (jlong)0); |
| if (err != JVMTI_ERROR_NONE) { |
| printf("Failed to wait raw monitor (thread): %s (%d)\n", |
| TranslateError(err), err); |
| result = STATUS_FAILED; |
| } |
| err = (*jvmti)->RawMonitorExit(jvmti, lock2); |
| if (err != JVMTI_ERROR_NONE) { |
| printf("Failed to exit raw monitor 2 (thread): %s (%d)\n", |
| TranslateError(err), err); |
| result = STATUS_FAILED; |
| } |
| } |
| |
| #ifdef STATIC_BUILD |
| JNIEXPORT jint JNICALL Agent_OnLoad_allthr001(JavaVM *jvm, char *options, void *reserved) { |
| return Agent_Initialize(jvm, options, reserved); |
| } |
| JNIEXPORT jint JNICALL Agent_OnAttach_allthr001(JavaVM *jvm, char *options, void *reserved) { |
| return Agent_Initialize(jvm, options, reserved); |
| } |
| JNIEXPORT jint JNI_OnLoad_allthr001(JavaVM *jvm, char *options, void *reserved) { |
| return JNI_VERSION_1_8; |
| } |
| #endif |
| jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) { |
| jint res; |
| jvmtiError err; |
| |
| if (options != NULL && strcmp(options, "printdump") == 0) { |
| printdump = JNI_TRUE; |
| } |
| |
| res = JNI_ENV_PTR(jvm)->GetEnv(JNI_ENV_ARG(jvm, (void **) &jvmti), |
| JVMTI_VERSION_1_1); |
| if (res != JNI_OK || jvmti == NULL) { |
| printf("Wrong result of a valid call to GetEnv !\n"); |
| return JNI_ERR; |
| } |
| |
| err = (*jvmti)->CreateRawMonitor(jvmti, "_lock1", &lock1); |
| if (err != JVMTI_ERROR_NONE) { |
| printf("Failed to create raw monitor 1, err = %d\n", err); |
| return JNI_ERR; |
| } |
| |
| err = (*jvmti)->CreateRawMonitor(jvmti, "_lock2", &lock2); |
| if (err != JVMTI_ERROR_NONE) { |
| printf("Failed to create raw monitor 2, err = %d\n", err); |
| return JNI_ERR; |
| } |
| |
| return JNI_OK; |
| } |
| |
| JNIEXPORT void checkInfo(JNIEnv *env, int ind) { |
| jint threadsCount = -1; |
| jthread *threads; |
| int i, j, found; |
| jvmtiError err; |
| int num_unexpected = 0; |
| |
| if (printdump == JNI_TRUE) { |
| printf(" >>> Check: %d\n", ind); |
| } |
| |
| if (ind == 4) { |
| err = (*jvmti)->RawMonitorEnter(jvmti, lock1); |
| if (err != JVMTI_ERROR_NONE) { |
| printf("Failed to enter raw monitor (check): %s (%d)\n", |
| TranslateError(err), err); |
| result = STATUS_FAILED; |
| } |
| err = (*jvmti)->RunAgentThread(jvmti, jthr(env), sys_thread, NULL, |
| JVMTI_THREAD_NORM_PRIORITY); |
| if (err != JVMTI_ERROR_NONE) { |
| printf("Failed to start agent thread: %s (%d)\n", |
| TranslateError(err), err); |
| result = STATUS_FAILED; |
| } |
| err = (*jvmti)->RawMonitorWait(jvmti, lock1, (jlong)0); |
| if (err != JVMTI_ERROR_NONE) { |
| printf("Failed to wait raw monitor (check): %s (%d)\n", |
| TranslateError(err), err); |
| result = STATUS_FAILED; |
| } |
| err = (*jvmti)->RawMonitorExit(jvmti, lock1); |
| if (err != JVMTI_ERROR_NONE) { |
| printf("Failed to exit raw monitor (check): %s (%d)\n", |
| TranslateError(err), err); |
| result = STATUS_FAILED; |
| } |
| } |
| |
| err = (*jvmti)->GetAllThreads(jvmti, &threadsCount, &threads); |
| if (err != JVMTI_ERROR_NONE) { |
| printf("Failed to get all threads (check): %s (%d)\n", |
| TranslateError(err), err); |
| result = STATUS_FAILED; |
| } |
| |
| for (i = 0; i < threadsCount; i++) { |
| if (!isThreadExpected(jvmti, threads[i])) { |
| num_unexpected++; |
| } |
| } |
| |
| if (threadsCount - num_unexpected != thrInfo[ind].cnt + sys_cnt) { |
| printf("Point %d: number of threads expected: %d, got: %d\n", |
| ind, thrInfo[ind].cnt + sys_cnt, threadsCount - num_unexpected); |
| result = STATUS_FAILED; |
| } |
| |
| for (i = 0; i < thrInfo[ind].cnt; i++) { |
| for (j = 0, found = 0; j < threadsCount && !found; j++) { |
| err = (*jvmti)->GetThreadInfo(jvmti, threads[j], &inf); |
| if (err != JVMTI_ERROR_NONE) { |
| printf("Failed to get thread info: %s (%d)\n", |
| TranslateError(err), err); |
| result = STATUS_FAILED; |
| } |
| if (printdump == JNI_TRUE) { |
| printf(" >>> %s", inf.name); |
| } |
| found = (inf.name != NULL && |
| strstr(inf.name, thrInfo[ind].thrNames[i]) == inf.name && |
| (ind == 4 || strlen(inf.name) == |
| strlen(thrInfo[ind].thrNames[i]))); |
| } |
| if (printdump == JNI_TRUE) { |
| printf("\n"); |
| } |
| if (!found) { |
| printf("Point %d: thread %s not detected\n", |
| ind, thrInfo[ind].thrNames[i]); |
| result = STATUS_FAILED; |
| } |
| } |
| |
| err = (*jvmti)->Deallocate(jvmti, (unsigned char *)threads); |
| if (err != JVMTI_ERROR_NONE) { |
| printf("Failed to deallocate array: %s (%d)\n", |
| TranslateError(err), err); |
| result = STATUS_FAILED; |
| } |
| |
| if (ind == 4) { |
| err = (*jvmti)->RawMonitorEnter(jvmti, lock2); |
| if (err != JVMTI_ERROR_NONE) { |
| printf("Failed to enter raw monitor (check): %s (%d)\n", |
| TranslateError(err), err); |
| result = STATUS_FAILED; |
| } |
| err = (*jvmti)->RawMonitorNotify(jvmti, lock2); |
| if (err != JVMTI_ERROR_NONE) { |
| printf("Failed to notify raw monitor (check): %s (%d)\n", |
| TranslateError(err), err); |
| result = STATUS_FAILED; |
| } |
| err = (*jvmti)->RawMonitorExit(jvmti, lock2); |
| if (err != JVMTI_ERROR_NONE) { |
| printf("Failed to exit raw monitor (check): %s (%d)\n", |
| TranslateError(err), err); |
| result = STATUS_FAILED; |
| } |
| } |
| } |
| |
| JNIEXPORT void JNICALL Java_nsk_jvmti_GetAllThreads_allthr001_setSysCnt(JNIEnv *env, jclass cls) { |
| jint threadsCount = -1; |
| jthread *threads; |
| jvmtiError err; |
| int i; |
| |
| err = (*jvmti)->GetAllThreads(jvmti, &threadsCount, &threads); |
| if (err != JVMTI_ERROR_NONE) { |
| printf("Failed to get all threads (count): %s (%d)\n", |
| TranslateError(err), err); |
| result = STATUS_FAILED; |
| } |
| |
| sys_cnt = threadsCount - 1; |
| |
| for (i = 0; i < threadsCount; i++) { |
| if (!isThreadExpected(jvmti, threads[i])) { |
| sys_cnt--; |
| } |
| } |
| |
| if (printdump == JNI_TRUE) { |
| printf(" >>> number of system threads: %d\n", sys_cnt); |
| } |
| } |
| |
| JNIEXPORT void JNICALL |
| Java_nsk_jvmti_GetAllThreads_allthr001_checkInfo(JNIEnv *env, jclass cls, jint ind) { |
| checkInfo(env, ind); |
| } |
| |
| JNIEXPORT jint JNICALL Java_nsk_jvmti_GetAllThreads_allthr001_getRes(JNIEnv *env, jclass cls) { |
| return result; |
| } |
| |
| #ifdef __cplusplus |
| } |
| #endif |
