1 /*
   2  * Copyright (c) 2004, 2018, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 #include <stdlib.h>
  25 #include <string.h>
  26 #include "jni_tools.h"
  27 #include "agent_common.h"
  28 #include "jvmti_tools.h"
  29 
  30 #define PASSED 0
  31 #define STATUS_FAILED 2
  32 
  33 extern "C" {
  34 
  35 /* ========================================================================== */
  36 
  37 /* scaffold objects */
  38 static jlong timeout = 0;
  39 
  40 /* test objects */
  41 static jobject threadDeath = NULL;
  42 static jthread threadForStop = NULL;
  43 static jthread threadForInterrupt = NULL;
  44 
  45 /* ========================================================================== */
  46 
  47 static int prepare(jvmtiEnv* jvmti, JNIEnv* jni) {
  48     const char* STOP_THREAD_NAME = "DebuggeeThreadForStop";
  49     const char* INTERRUPT_THREAD_NAME = "DebuggeeThreadForInterrupt";
  50     const char* THREAD_DEATH_CLASS_NAME = "java/lang/ThreadDeath";
  51     const char* THREAD_DEATH_CTOR_NAME = "<init>";
  52     const char* THREAD_DEATH_CTOR_SIGNATURE = "()V";
  53     jvmtiThreadInfo info;
  54     jthread *threads = NULL;
  55     jint threads_count = 0;
  56     jclass cls = NULL;
  57     jmethodID ctor = NULL;
  58     int i;
  59 
  60     NSK_DISPLAY0("Prepare: find tested thread\n");
  61 
  62     /* get all live threads */
  63     if (!NSK_JVMTI_VERIFY(jvmti->GetAllThreads(&threads_count, &threads)))
  64         return NSK_FALSE;
  65 
  66     if (!NSK_VERIFY(threads_count > 0 && threads != NULL))
  67         return NSK_FALSE;
  68 
  69     /* find tested thread */
  70     for (i = 0; i < threads_count; i++) {
  71         if (!NSK_VERIFY(threads[i] != NULL))
  72             return NSK_FALSE;
  73 
  74         /* get thread information */
  75         if (!NSK_JVMTI_VERIFY(jvmti->GetThreadInfo(threads[i], &info)))
  76             return NSK_FALSE;
  77 
  78         NSK_DISPLAY3("    thread #%d (%s): %p\n", i, info.name, threads[i]);
  79 
  80         /* find by name */
  81         if (info.name != NULL) {
  82             if (strcmp(info.name, STOP_THREAD_NAME) == 0) {
  83                 threadForStop = threads[i];
  84             } else if (strcmp(info.name, INTERRUPT_THREAD_NAME) == 0) {
  85                 threadForInterrupt = threads[i];
  86             }
  87         }
  88     }
  89 
  90     /* deallocate threads list */
  91     if (!NSK_JVMTI_VERIFY(jvmti->Deallocate((unsigned char*)threads)))
  92         return NSK_FALSE;
  93 
  94     if (threadForStop == NULL) {
  95         NSK_COMPLAIN0("DebuggeeThreadForStop not found");
  96         return NSK_FALSE;
  97     }
  98 
  99     if (threadForInterrupt == NULL) {
 100         NSK_COMPLAIN0("DebuggeeThreadForInterrupt not found");
 101         return NSK_FALSE;
 102     }
 103 
 104     NSK_DISPLAY0("Prepare: create new instance of ThreadDeath exception\n");
 105 
 106     if (!NSK_JNI_VERIFY(jni, (cls = jni->FindClass(THREAD_DEATH_CLASS_NAME)) != NULL))
 107         return NSK_FALSE;
 108 
 109     if (!NSK_JNI_VERIFY(jni, (ctor =
 110             jni->GetMethodID(cls, THREAD_DEATH_CTOR_NAME, THREAD_DEATH_CTOR_SIGNATURE)) != NULL))
 111         return NSK_FALSE;
 112 
 113     if (!NSK_JNI_VERIFY(jni, (threadDeath = jni->NewObject(cls, ctor)) != NULL))
 114         return NSK_FALSE;
 115 
 116     return NSK_TRUE;
 117 }
 118 
 119 /* ========================================================================== */
 120 
 121 /** Agent algorithm. */
 122 static void JNICALL
 123 agentProc(jvmtiEnv* jvmti, JNIEnv* jni, void* arg) {
 124 
 125     if (!nsk_jvmti_waitForSync(timeout))
 126         return;
 127 
 128     if (!prepare(jvmti, jni)) {
 129         nsk_jvmti_setFailStatus();
 130         return;
 131     }
 132 
 133     NSK_DISPLAY0("Testcase #1: call StopThread\n");
 134     if (!NSK_VERIFY(threadForStop != NULL)) {
 135         nsk_jvmti_setFailStatus();
 136     } else {
 137         if (!NSK_JVMTI_VERIFY(jvmti->StopThread(threadForStop, threadDeath)))
 138             nsk_jvmti_setFailStatus();
 139     }
 140 
 141     NSK_DISPLAY0("Testcase #2: call InterruptThread\n");
 142     if (!NSK_VERIFY(threadForInterrupt != NULL)) {
 143         nsk_jvmti_setFailStatus();
 144     } else {
 145         if (!NSK_JVMTI_VERIFY(jvmti->InterruptThread(threadForInterrupt)))
 146             nsk_jvmti_setFailStatus();
 147     }
 148 
 149     /* resume debugee and wait for sync */
 150     if (!nsk_jvmti_resumeSync())
 151         return;
 152     if (!nsk_jvmti_waitForSync(timeout))
 153         return;
 154 
 155     if (!nsk_jvmti_resumeSync())
 156         return;
 157 }
 158 
 159 /* ========================================================================== */
 160 
 161 /** Agent library initialization. */
 162 #ifdef STATIC_BUILD
 163 JNIEXPORT jint JNICALL Agent_OnLoad_ma08t001(JavaVM *jvm, char *options, void *reserved) {
 164     return Agent_Initialize(jvm, options, reserved);
 165 }
 166 JNIEXPORT jint JNICALL Agent_OnAttach_ma08t001(JavaVM *jvm, char *options, void *reserved) {
 167     return Agent_Initialize(jvm, options, reserved);
 168 }
 169 JNIEXPORT jint JNI_OnLoad_ma08t001(JavaVM *jvm, char *options, void *reserved) {
 170     return JNI_VERSION_1_8;
 171 }
 172 #endif
 173 jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) {
 174     jvmtiEnv* jvmti = NULL;
 175     jvmtiCapabilities caps;
 176     jvmtiEventCallbacks callbacks;
 177 
 178     NSK_DISPLAY0("Agent_OnLoad\n");
 179 
 180     if (!NSK_VERIFY(nsk_jvmti_parseOptions(options)))
 181         return JNI_ERR;
 182 
 183     timeout = nsk_jvmti_getWaitTime() * 60 * 1000;
 184 
 185     if (!NSK_VERIFY((jvmti =
 186             nsk_jvmti_createJVMTIEnv(jvm, reserved)) != NULL))
 187         return JNI_ERR;
 188 
 189     if (!NSK_VERIFY(nsk_jvmti_setAgentProc(agentProc, NULL)))
 190         return JNI_ERR;
 191 
 192     memset(&caps, 0, sizeof(caps));
 193     caps.can_signal_thread = 1;
 194     if (!NSK_JVMTI_VERIFY(jvmti->AddCapabilities(&caps))) {
 195         return JNI_ERR;
 196     }
 197 
 198     memset(&callbacks, 0, sizeof(callbacks));
 199     if (!NSK_VERIFY(nsk_jvmti_init_MA(&callbacks)))
 200         return JNI_ERR;
 201 
 202     return JNI_OK;
 203 }
 204 
 205 /* ========================================================================== */
 206 
 207 }