author | phh |
Sat, 30 Nov 2019 14:33:05 -0800 | |
changeset 59330 | 5b96c12f909d |
parent 52081 | ca7ddf0a1d47 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2004, 2018, 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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|
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#include <stdlib.h> |
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#include <string.h> |
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#include "jni_tools.h" |
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#include "agent_common.h" |
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#include "jvmti_tools.h" |
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|
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extern "C" { |
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|
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typedef struct { |
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jthread thread; |
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char* name; |
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int dfn; |
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} threadDesc; |
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|
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/* ========================================================================== */ |
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|
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/* scaffold objects */ |
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static jlong timeout = 0; |
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/* test objects */ |
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static threadDesc *threadList = NULL; |
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static jint threads_count = 0; |
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static int numberOfDeadlocks = 0; |
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|
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/* ========================================================================== */ |
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|
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static int printDeadlock(jvmtiEnv* jvmti, JNIEnv* jni, int dThread) { |
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jobject monitor = NULL; |
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jclass klass = NULL; |
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jvmtiMonitorUsage usageInfo; |
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int pThread, cThread; |
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char* name; |
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|
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NSK_DISPLAY1("Found deadlock #%d:\n", numberOfDeadlocks); |
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for (pThread = dThread;;pThread = cThread) { |
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NSK_DISPLAY1(" \"%s\":\n", threadList[pThread].name); |
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if (!NSK_JVMTI_VERIFY( |
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jvmti->GetCurrentContendedMonitor(threadList[pThread].thread, &monitor))) |
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return NSK_FALSE; |
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if (monitor != NULL) { |
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if (!NSK_JNI_VERIFY(jni, (klass = jni->GetObjectClass(monitor)) != NULL)) |
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return NSK_FALSE; |
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if (!NSK_JVMTI_VERIFY(jvmti->GetClassSignature(klass, &name, NULL))) |
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return NSK_FALSE; |
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NSK_DISPLAY2(" waiting to lock %p (%s),\n", monitor, name); |
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jvmti->Deallocate((unsigned char*)name); |
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} else { |
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NSK_DISPLAY0(" (JVMTI raw monitor),\n"); |
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} |
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if (!NSK_JVMTI_VERIFY(jvmti->GetObjectMonitorUsage(monitor, &usageInfo))) |
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return NSK_FALSE; |
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if (usageInfo.owner == NULL) |
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break; |
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for (cThread = 0; cThread < threads_count; cThread++) { |
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if (jni->IsSameObject(threadList[cThread].thread, usageInfo.owner)) |
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break; |
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} |
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if (usageInfo.waiters != NULL) { |
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jvmti->Deallocate((unsigned char*)usageInfo.waiters); |
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} |
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if (usageInfo.notify_waiters != NULL) { |
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jvmti->Deallocate((unsigned char*)usageInfo.notify_waiters); |
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} |
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if (!NSK_VERIFY(cThread != threads_count)) |
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return NSK_FALSE; |
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NSK_DISPLAY1(" which is held by \"%s\"\n", |
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threadList[cThread].name); |
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if (cThread == dThread) |
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break; |
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} |
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|
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return NSK_TRUE; |
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} |
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|
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static int findDeadlockThreads(jvmtiEnv* jvmti, JNIEnv* jni) { |
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jvmtiThreadInfo info; |
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jthread *threads = NULL; |
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jobject monitor = NULL; |
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jvmtiMonitorUsage usageInfo; |
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int tDfn = 0, gDfn = 0; |
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int pThread, cThread; |
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int i; |
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NSK_DISPLAY0("Create threadList\n"); |
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/* get all live threads */ |
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if (!NSK_JVMTI_VERIFY(jvmti->GetAllThreads(&threads_count, &threads))) |
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return NSK_FALSE; |
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|
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if (!NSK_VERIFY(threads_count > 0 && threads != NULL)) |
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return NSK_FALSE; |
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|
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if (!NSK_JVMTI_VERIFY( |
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jvmti->Allocate(threads_count*sizeof(threadDesc), (unsigned char**)&threadList))) |
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118 |
return NSK_FALSE; |
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119 |
|
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120 |
for (i = 0; i < threads_count; i++) { |
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121 |
if (!NSK_VERIFY(threads[i] != NULL)) |
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122 |
return NSK_FALSE; |
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|
123 |
|
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124 |
/* get thread information */ |
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125 |
if (!NSK_JVMTI_VERIFY(jvmti->GetThreadInfo(threads[i], &info))) |
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126 |
return NSK_FALSE; |
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|
127 |
|
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128 |
NSK_DISPLAY3(" thread #%d (%s): %p\n", i, info.name, threads[i]); |
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129 |
|
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130 |
threadList[i].thread = threads[i]; |
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131 |
threadList[i].dfn = -1; |
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132 |
threadList[i].name = info.name; |
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133 |
} |
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134 |
|
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135 |
/* deallocate thread list */ |
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136 |
if (!NSK_JVMTI_VERIFY(jvmti->Deallocate((unsigned char*)threads))) |
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|
137 |
return NSK_FALSE; |
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|
138 |
|
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|
139 |
for (i = 0; i < threads_count; i++) { |
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|
140 |
if (threadList[i].dfn < 0) { |
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|
141 |
tDfn = gDfn; |
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142 |
threadList[i].dfn = gDfn++; |
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|
143 |
for (pThread = i;;pThread = cThread) { |
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144 |
if (!NSK_JVMTI_VERIFY( |
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145 |
jvmti->GetCurrentContendedMonitor(threadList[pThread].thread, &monitor))) |
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|
146 |
return NSK_FALSE; |
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|
147 |
if (monitor == NULL) |
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|
148 |
break; |
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149 |
if (!NSK_JVMTI_VERIFY(jvmti->GetObjectMonitorUsage(monitor, &usageInfo))) |
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|
150 |
return NSK_FALSE; |
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|
151 |
if (usageInfo.owner == NULL) |
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|
152 |
break; |
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|
153 |
for (cThread = 0; cThread < threads_count; cThread++) { |
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154 |
if (jni->IsSameObject(threadList[cThread].thread, usageInfo.owner)) |
50260
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|
155 |
break; |
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|
156 |
} |
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|
157 |
if (usageInfo.waiters != NULL) { |
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|
158 |
jvmti->Deallocate((unsigned char*)usageInfo.waiters); |
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|
159 |
} |
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|
160 |
if (usageInfo.notify_waiters != NULL) { |
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|
161 |
jvmti->Deallocate((unsigned char*)usageInfo.notify_waiters); |
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|
162 |
} |
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|
163 |
if (!NSK_VERIFY(cThread != threads_count)) |
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|
164 |
return NSK_FALSE; |
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|
165 |
if (threadList[cThread].dfn < 0) { |
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|
166 |
threadList[cThread].dfn = gDfn++; |
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|
167 |
} else if (cThread == pThread) { |
46c67f5e27c2
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|
168 |
break; |
46c67f5e27c2
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|
169 |
} else { |
46c67f5e27c2
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|
170 |
numberOfDeadlocks++; |
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|
171 |
if (nsk_getVerboseMode()) { |
46c67f5e27c2
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|
172 |
if (!printDeadlock(jvmti, jni, cThread)) |
46c67f5e27c2
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|
173 |
return NSK_FALSE; |
46c67f5e27c2
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|
174 |
} |
46c67f5e27c2
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|
175 |
break; |
46c67f5e27c2
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changeset
|
176 |
} |
46c67f5e27c2
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|
177 |
} |
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|
178 |
} |
46c67f5e27c2
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|
179 |
} |
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|
180 |
|
46c67f5e27c2
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|
181 |
/* deallocate thread names */ |
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|
182 |
for (i = 0; i < threads_count; i++) { |
46c67f5e27c2
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|
183 |
if (threadList[i].name != NULL) { |
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|
184 |
if (!NSK_JVMTI_VERIFY(jvmti->Deallocate((unsigned char*)threadList[i].name))) |
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|
185 |
return NSK_FALSE; |
46c67f5e27c2
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|
186 |
} |
46c67f5e27c2
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|
187 |
} |
46c67f5e27c2
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|
188 |
|
46c67f5e27c2
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|
189 |
return NSK_TRUE; |
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|
190 |
} |
46c67f5e27c2
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|
191 |
|
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|
192 |
/* ========================================================================== */ |
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|
193 |
|
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|
194 |
/* agent algorithm */ |
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|
195 |
static void JNICALL |
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|
196 |
agentProc(jvmtiEnv* jvmti, JNIEnv* jni, void* arg) { |
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|
197 |
|
46c67f5e27c2
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|
198 |
/* wait for initial sync */ |
46c67f5e27c2
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|
199 |
if (!nsk_jvmti_waitForSync(timeout)) |
46c67f5e27c2
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|
200 |
return; |
46c67f5e27c2
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changeset
|
201 |
|
46c67f5e27c2
8199383: [TESTBUG] Open source VM testbase JVMTI tests
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|
202 |
if (!findDeadlockThreads(jvmti, jni)) { |
46c67f5e27c2
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|
203 |
nsk_jvmti_setFailStatus(); |
46c67f5e27c2
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|
204 |
return; |
46c67f5e27c2
8199383: [TESTBUG] Open source VM testbase JVMTI tests
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changeset
|
205 |
} |
46c67f5e27c2
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changeset
|
206 |
|
46c67f5e27c2
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|
207 |
NSK_DISPLAY1("Total deadlocks found: %d\n", numberOfDeadlocks); |
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|
208 |
if (!NSK_VERIFY(numberOfDeadlocks > 0)) |
46c67f5e27c2
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|
209 |
nsk_jvmti_setFailStatus(); |
46c67f5e27c2
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|
210 |
|
46c67f5e27c2
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|
211 |
/* resume debugee after last sync */ |
46c67f5e27c2
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|
212 |
if (!nsk_jvmti_resumeSync()) |
46c67f5e27c2
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|
213 |
return; |
46c67f5e27c2
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changeset
|
214 |
} |
46c67f5e27c2
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changeset
|
215 |
|
46c67f5e27c2
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|
216 |
/* ========================================================================== */ |
46c67f5e27c2
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|
217 |
|
46c67f5e27c2
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|
218 |
/* agent library initialization */ |
46c67f5e27c2
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|
219 |
#ifdef STATIC_BUILD |
46c67f5e27c2
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|
220 |
JNIEXPORT jint JNICALL Agent_OnLoad_tc03t001(JavaVM *jvm, char *options, void *reserved) { |
46c67f5e27c2
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|
221 |
return Agent_Initialize(jvm, options, reserved); |
46c67f5e27c2
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|
222 |
} |
46c67f5e27c2
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|
223 |
JNIEXPORT jint JNICALL Agent_OnAttach_tc03t001(JavaVM *jvm, char *options, void *reserved) { |
46c67f5e27c2
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|
224 |
return Agent_Initialize(jvm, options, reserved); |
46c67f5e27c2
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|
225 |
} |
46c67f5e27c2
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|
226 |
JNIEXPORT jint JNI_OnLoad_tc03t001(JavaVM *jvm, char *options, void *reserved) { |
46c67f5e27c2
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|
227 |
return JNI_VERSION_1_8; |
46c67f5e27c2
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|
228 |
} |
46c67f5e27c2
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|
229 |
#endif |
46c67f5e27c2
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|
230 |
jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) { |
46c67f5e27c2
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|
231 |
jvmtiEnv* jvmti = NULL; |
46c67f5e27c2
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|
232 |
jvmtiCapabilities caps; |
46c67f5e27c2
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|
233 |
|
46c67f5e27c2
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|
234 |
/* init framework and parse options */ |
46c67f5e27c2
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|
235 |
if (!NSK_VERIFY(nsk_jvmti_parseOptions(options))) |
46c67f5e27c2
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|
236 |
return JNI_ERR; |
46c67f5e27c2
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237 |
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timeout = nsk_jvmti_getWaitTime() * 60000; |
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NSK_DISPLAY1("Timeout: %d msc\n", (int)timeout); |
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/* create JVMTI environment */ |
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if (!NSK_VERIFY((jvmti = |
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nsk_jvmti_createJVMTIEnv(jvm, reserved)) != NULL)) |
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return JNI_ERR; |
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|
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/* add capabilities */ |
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memset(&caps, 0, sizeof(caps)); |
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caps.can_get_current_contended_monitor = 1; |
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caps.can_get_monitor_info = 1; |
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if (!NSK_JVMTI_VERIFY(jvmti->AddCapabilities(&caps))) |
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return JNI_ERR; |
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|
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/* register agent proc and arg */ |
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if (!NSK_VERIFY(nsk_jvmti_setAgentProc(agentProc, NULL))) |
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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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/* ========================================================================== */ |
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|
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} |