author | ysuenaga |
Mon, 07 Aug 2017 12:34:21 -0700 | |
changeset 46765 | 07298ebd9367 |
permissions | -rw-r--r-- |
46765
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/* |
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* Copyright (c) 2017, 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 "jni.h" |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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#ifndef JNI_ENV_ARG |
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#ifdef __cplusplus |
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#define JNI_ENV_ARG(x, y) y |
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#define JNI_ENV_PTR(x) x |
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#else |
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#define JNI_ENV_ARG(x,y) x, y |
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#define JNI_ENV_PTR(x) (*x) |
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#endif |
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#endif |
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#define PASSED 0 |
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#define FAILED 2 |
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#define TEST_CLASS "GetOwnedMonitorInfoTest" |
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static volatile jboolean event_has_posted = JNI_FALSE; |
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static volatile jint status = PASSED; |
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static jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved); |
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static void ShowErrorMessage(jvmtiEnv *jvmti, jvmtiError errCode, const char *message) { |
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char *errMsg; |
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jvmtiError result; |
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result = (*jvmti)->GetErrorName(jvmti, errCode, &errMsg); |
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if (result == JVMTI_ERROR_NONE) { |
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fprintf(stderr, "%s: %s (%d)\n", message, errMsg, errCode); |
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(*jvmti)->Deallocate(jvmti, (unsigned char *)errMsg); |
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} else { |
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fprintf(stderr, "%s (%d)\n", message, errCode); |
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} |
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} |
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static jboolean CheckLockObject(JNIEnv *env, jobject monitor) { |
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jclass testClass; |
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testClass = (*env)->FindClass(env, TEST_CLASS); |
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if (testClass == NULL) { |
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fprintf(stderr, "MonitorContendedEnter: " TEST_CLASS " not found\n"); |
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status = FAILED; |
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event_has_posted = JNI_TRUE; |
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return JNI_FALSE; |
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} |
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return (*env)->IsInstanceOf(env, monitor, testClass); |
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} |
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JNIEXPORT void JNICALL |
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MonitorContendedEnter(jvmtiEnv *jvmti, JNIEnv *env, jthread thread, jobject monitor) { |
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jvmtiError err; |
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jvmtiThreadInfo threadInfo; |
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jint monitorCount; |
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jobject *ownedMonitors; |
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if (CheckLockObject(env, monitor) == JNI_FALSE) { |
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return; |
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} |
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err = (*jvmti)->GetThreadInfo(jvmti, thread, &threadInfo); |
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if (err != JVMTI_ERROR_NONE) { |
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ShowErrorMessage(jvmti, err, |
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"MonitorContendedEnter: error in JVMTI GetThreadInfo"); |
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status = FAILED; |
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event_has_posted = JNI_TRUE; |
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return; |
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} |
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err = (*jvmti)->GetOwnedMonitorInfo(jvmti, thread, &monitorCount, &ownedMonitors); |
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if (err != JVMTI_ERROR_NONE) { |
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ShowErrorMessage(jvmti, err, |
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"MonitorContendedEnter: error in JVMTI GetOwnedMonitorInfo"); |
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status = FAILED; |
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event_has_posted = JNI_TRUE; |
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return; |
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} |
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|
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printf("MonitorContendedEnter: %s owns %d monitor(s)\n", |
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threadInfo.name, monitorCount); |
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(*jvmti)->Deallocate(jvmti, (unsigned char *)ownedMonitors); |
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(*jvmti)->Deallocate(jvmti, (unsigned char *)threadInfo.name); |
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|
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if (monitorCount != 0) { |
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fprintf(stderr, "MonitorContendedEnter: FAIL: monitorCount should be zero.\n"); |
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status = FAILED; |
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} |
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event_has_posted = JNI_TRUE; |
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} |
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JNIEXPORT void JNICALL |
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MonitorContendedEntered(jvmtiEnv *jvmti, JNIEnv *env, jthread thread, jobject monitor) { |
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jvmtiError err; |
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jvmtiThreadInfo threadInfo; |
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jint monitorCount; |
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jobject *ownedMonitors; |
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if (CheckLockObject(env, monitor) == JNI_FALSE) { |
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return; |
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} |
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err = (*jvmti)->GetThreadInfo(jvmti, thread, &threadInfo); |
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if (err != JVMTI_ERROR_NONE) { |
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ShowErrorMessage(jvmti, err, |
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"MonitorContendedEntered: error in JVMTI GetThreadInfo"); |
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139 |
status = FAILED; |
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|
140 |
return; |
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|
141 |
} |
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142 |
err = (*jvmti)->GetOwnedMonitorInfo(jvmti, thread, &monitorCount, &ownedMonitors); |
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|
143 |
if (err != JVMTI_ERROR_NONE) { |
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|
144 |
ShowErrorMessage(jvmti, err, |
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|
145 |
"MonitorContendedEntered: error in JVMTI GetOwnedMonitorInfo"); |
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|
146 |
status = FAILED; |
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|
147 |
return; |
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|
148 |
} |
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|
149 |
|
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|
150 |
printf("MonitorContendedEntered: %s owns %d monitor(s)\n", |
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|
151 |
threadInfo.name, monitorCount); |
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|
152 |
|
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|
153 |
(*jvmti)->Deallocate(jvmti, (unsigned char *)ownedMonitors); |
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|
154 |
(*jvmti)->Deallocate(jvmti, (unsigned char *)threadInfo.name); |
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|
155 |
|
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|
156 |
if (monitorCount != 1) { |
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|
157 |
fprintf(stderr, "MonitorContendedEnter: FAIL: monitorCount should be one.\n"); |
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|
158 |
status = FAILED; |
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|
159 |
} |
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|
160 |
} |
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|
161 |
|
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|
162 |
JNIEXPORT jint JNICALL |
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|
163 |
Agent_OnLoad(JavaVM *jvm, char *options, void *reserved) { |
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|
164 |
return Agent_Initialize(jvm, options, reserved); |
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|
165 |
} |
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|
166 |
|
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|
167 |
JNIEXPORT jint JNICALL |
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|
168 |
Agent_OnAttach(JavaVM *jvm, char *options, void *reserved) { |
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|
169 |
return Agent_Initialize(jvm, options, reserved); |
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|
170 |
} |
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|
171 |
|
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|
172 |
JNIEXPORT jint JNICALL |
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|
173 |
JNI_OnLoad(JavaVM *jvm, void *reserved) { |
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|
174 |
return JNI_VERSION_1_8; |
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|
175 |
} |
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|
176 |
|
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|
177 |
static |
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|
178 |
jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) { |
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|
179 |
jint res; |
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|
180 |
jvmtiError err; |
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|
181 |
jvmtiEnv *jvmti; |
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|
182 |
jvmtiCapabilities caps; |
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|
183 |
jvmtiEventCallbacks callbacks; |
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|
184 |
|
07298ebd9367
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diff
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|
185 |
printf("Agent_OnLoad started\n"); |
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|
186 |
|
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|
187 |
res = JNI_ENV_PTR(jvm)->GetEnv(JNI_ENV_ARG(jvm, (void **) &jvmti), |
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|
188 |
JVMTI_VERSION_1); |
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|
189 |
if (res != JNI_OK || jvmti == NULL) { |
07298ebd9367
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|
190 |
fprintf(stderr, "Error: wrong result of a valid call to GetEnv!\n"); |
07298ebd9367
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diff
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|
191 |
return JNI_ERR; |
07298ebd9367
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parents:
diff
changeset
|
192 |
} |
07298ebd9367
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parents:
diff
changeset
|
193 |
|
07298ebd9367
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|
194 |
err = (*jvmti)->GetPotentialCapabilities(jvmti, &caps); |
07298ebd9367
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|
195 |
if (err != JVMTI_ERROR_NONE) { |
07298ebd9367
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diff
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|
196 |
ShowErrorMessage(jvmti, err, |
07298ebd9367
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parents:
diff
changeset
|
197 |
"Agent_OnLoad: error in JVMTI GetPotentialCapabilities"); |
07298ebd9367
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|
198 |
return JNI_ERR; |
07298ebd9367
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parents:
diff
changeset
|
199 |
} |
07298ebd9367
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diff
changeset
|
200 |
|
07298ebd9367
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|
201 |
err = (*jvmti)->AddCapabilities(jvmti, &caps); |
07298ebd9367
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diff
changeset
|
202 |
if (err != JVMTI_ERROR_NONE) { |
07298ebd9367
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ysuenaga
parents:
diff
changeset
|
203 |
ShowErrorMessage(jvmti, err, |
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
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parents:
diff
changeset
|
204 |
"Agent_OnLoad: error in JVMTI AddCapabilities"); |
07298ebd9367
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diff
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|
205 |
return JNI_ERR; |
07298ebd9367
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parents:
diff
changeset
|
206 |
} |
07298ebd9367
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diff
changeset
|
207 |
|
07298ebd9367
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diff
changeset
|
208 |
err = (*jvmti)->GetCapabilities(jvmti, &caps); |
07298ebd9367
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diff
changeset
|
209 |
if (err != JVMTI_ERROR_NONE) { |
07298ebd9367
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parents:
diff
changeset
|
210 |
ShowErrorMessage(jvmti, err, |
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
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parents:
diff
changeset
|
211 |
"Agent_OnLoad: error in JVMTI GetCapabilities"); |
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
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parents:
diff
changeset
|
212 |
return JNI_ERR; |
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
ysuenaga
parents:
diff
changeset
|
213 |
} |
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
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diff
changeset
|
214 |
|
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
ysuenaga
parents:
diff
changeset
|
215 |
if (!caps.can_generate_monitor_events) { |
07298ebd9367
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ysuenaga
parents:
diff
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|
216 |
fprintf(stderr, "Warning: Monitor events are not implemented\n"); |
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
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parents:
diff
changeset
|
217 |
return JNI_ERR; |
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
ysuenaga
parents:
diff
changeset
|
218 |
} |
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
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diff
changeset
|
219 |
if (!caps.can_get_owned_monitor_info) { |
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
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diff
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|
220 |
fprintf(stderr, "Warning: GetOwnedMonitorInfo is not implemented\n"); |
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
ysuenaga
parents:
diff
changeset
|
221 |
return JNI_ERR; |
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
ysuenaga
parents:
diff
changeset
|
222 |
} |
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
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parents:
diff
changeset
|
223 |
|
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
ysuenaga
parents:
diff
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|
224 |
callbacks.MonitorContendedEnter = &MonitorContendedEnter; |
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
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|
225 |
callbacks.MonitorContendedEntered = &MonitorContendedEntered; |
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
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|
226 |
|
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
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diff
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|
227 |
err = (*jvmti)->SetEventCallbacks(jvmti, &callbacks, sizeof(jvmtiEventCallbacks)); |
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
ysuenaga
parents:
diff
changeset
|
228 |
if (err != JVMTI_ERROR_NONE) { |
07298ebd9367
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ysuenaga
parents:
diff
changeset
|
229 |
ShowErrorMessage(jvmti, err, |
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
ysuenaga
parents:
diff
changeset
|
230 |
"Agent_OnLoad: error in JVMTI SetEventCallbacks"); |
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
ysuenaga
parents:
diff
changeset
|
231 |
return JNI_ERR; |
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
ysuenaga
parents:
diff
changeset
|
232 |
} |
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
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parents:
diff
changeset
|
233 |
|
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
ysuenaga
parents:
diff
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|
234 |
err = (*jvmti)->SetEventNotificationMode(jvmti, JVMTI_ENABLE, |
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
ysuenaga
parents:
diff
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|
235 |
JVMTI_EVENT_MONITOR_CONTENDED_ENTER, NULL); |
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
ysuenaga
parents:
diff
changeset
|
236 |
if (err != JVMTI_ERROR_NONE) { |
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
ysuenaga
parents:
diff
changeset
|
237 |
ShowErrorMessage(jvmti, err, |
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
ysuenaga
parents:
diff
changeset
|
238 |
"Agent_OnLoad: error in JVMTI SetEventNotificationMode #1"); |
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
ysuenaga
parents:
diff
changeset
|
239 |
return JNI_ERR; |
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
ysuenaga
parents:
diff
changeset
|
240 |
} |
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
ysuenaga
parents:
diff
changeset
|
241 |
err = (*jvmti)->SetEventNotificationMode(jvmti, JVMTI_ENABLE, |
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
ysuenaga
parents:
diff
changeset
|
242 |
JVMTI_EVENT_MONITOR_CONTENDED_ENTERED, NULL); |
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
ysuenaga
parents:
diff
changeset
|
243 |
if (err != JVMTI_ERROR_NONE) { |
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
ysuenaga
parents:
diff
changeset
|
244 |
ShowErrorMessage(jvmti, err, |
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
ysuenaga
parents:
diff
changeset
|
245 |
"Agent_OnLoad: error in JVMTI SetEventNotificationMode #2"); |
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
ysuenaga
parents:
diff
changeset
|
246 |
return JNI_ERR; |
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
ysuenaga
parents:
diff
changeset
|
247 |
} |
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
ysuenaga
parents:
diff
changeset
|
248 |
printf("Agent_OnLoad finished\n"); |
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
ysuenaga
parents:
diff
changeset
|
249 |
return JNI_OK; |
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
ysuenaga
parents:
diff
changeset
|
250 |
} |
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
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diff
changeset
|
251 |
|
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
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diff
changeset
|
252 |
JNIEXPORT jint JNICALL |
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
ysuenaga
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diff
changeset
|
253 |
Java_GetOwnedMonitorInfoTest_check(JNIEnv *env, jclass cls) { |
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
ysuenaga
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diff
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|
254 |
return status; |
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
ysuenaga
parents:
diff
changeset
|
255 |
} |
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
ysuenaga
parents:
diff
changeset
|
256 |
|
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
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diff
changeset
|
257 |
JNIEXPORT jboolean JNICALL |
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
ysuenaga
parents:
diff
changeset
|
258 |
Java_GetOwnedMonitorInfoTest_hasEventPosted(JNIEnv *env, jclass cls) { |
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
ysuenaga
parents:
diff
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|
259 |
return event_has_posted; |
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
ysuenaga
parents:
diff
changeset
|
260 |
} |
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
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diff
changeset
|
261 |
|
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
ysuenaga
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diff
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|
262 |
#ifdef __cplusplus |
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
ysuenaga
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diff
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|
263 |
} |
07298ebd9367
8185164: GetOwnedMonitorInfo() returns incorrect owned monitor
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|
264 |
#endif |