1 /*
2 * Copyright (c) 2003, 2016, 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. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 #include <jni.h>
27 #include <stdlib.h>
28 #include "jvm.h"
29 #include "management.h"
30 #include "sun_management_VMManagementImpl.h"
31
32 #define MAX_VERSION_LEN 20
33
34 JNIEXPORT jstring JNICALL
Java_sun_management_VMManagementImpl_getVersion0(JNIEnv * env,jclass dummy)35 Java_sun_management_VMManagementImpl_getVersion0
36 (JNIEnv *env, jclass dummy)
37 {
38 char buf[MAX_VERSION_LEN];
39 jstring version_string = NULL;
40
41 unsigned int major = ((unsigned int) jmm_version & 0x0FFF0000) >> 16;
42 unsigned int minor = ((unsigned int) jmm_version & 0xFF00) >> 8;
43
44 // for internal use
45 unsigned int micro = (unsigned int) jmm_version & 0xFF;
46
47 sprintf(buf, "%d.%d", major, minor);
48 version_string = (*env)->NewStringUTF(env, buf);
49 return version_string;
50 }
51
setStaticBooleanField(JNIEnv * env,jclass cls,const char * name,jboolean value)52 static void setStaticBooleanField
53 (JNIEnv* env, jclass cls, const char* name, jboolean value)
54 {
55 jfieldID fid;
56 fid = (*env)->GetStaticFieldID(env, cls, name, "Z");
57 if (fid != 0) {
58 (*env)->SetStaticBooleanField(env, cls, fid, value);
59 }
60 }
61
62 JNIEXPORT void JNICALL
Java_sun_management_VMManagementImpl_initOptionalSupportFields(JNIEnv * env,jclass cls)63 Java_sun_management_VMManagementImpl_initOptionalSupportFields
64 (JNIEnv *env, jclass cls)
65 {
66 jmmOptionalSupport mos;
67 jint ret = jmm_interface->GetOptionalSupport(env, &mos);
68
69 jboolean value;
70
71 value = mos.isCompilationTimeMonitoringSupported;
72 setStaticBooleanField(env, cls, "compTimeMonitoringSupport", value);
73
74 value = mos.isThreadContentionMonitoringSupported;
75 setStaticBooleanField(env, cls, "threadContentionMonitoringSupport", value);
76
77 value = mos.isCurrentThreadCpuTimeSupported;
78 setStaticBooleanField(env, cls, "currentThreadCpuTimeSupport", value);
79
80 value = mos.isOtherThreadCpuTimeSupported;
81 setStaticBooleanField(env, cls, "otherThreadCpuTimeSupport", value);
82
83 if (jmm_version >= JMM_VERSION_1_1) {
84 value = mos.isObjectMonitorUsageSupported;
85 setStaticBooleanField(env, cls, "objectMonitorUsageSupport", value);
86
87 value = mos.isSynchronizerUsageSupported;
88 setStaticBooleanField(env, cls, "synchronizerUsageSupport", value);
89 } else {
90 setStaticBooleanField(env, cls, "objectMonitorUsageSupport", JNI_FALSE);
91 setStaticBooleanField(env, cls, "synchronizerUsageSupport", JNI_FALSE);
92 }
93
94 value = mos.isThreadAllocatedMemorySupported;
95 setStaticBooleanField(env, cls, "threadAllocatedMemorySupport", value);
96
97 value = mos.isRemoteDiagnosticCommandsSupported;
98 setStaticBooleanField(env, cls, "remoteDiagnosticCommandsSupport", value);
99 }
100
101 JNIEXPORT jobjectArray JNICALL
Java_sun_management_VMManagementImpl_getVmArguments0(JNIEnv * env,jobject dummy)102 Java_sun_management_VMManagementImpl_getVmArguments0
103 (JNIEnv *env, jobject dummy)
104 {
105 return JVM_GetVmArguments(env);
106 }
107
108 JNIEXPORT jlong JNICALL
Java_sun_management_VMManagementImpl_getTotalClassCount(JNIEnv * env,jobject dummy)109 Java_sun_management_VMManagementImpl_getTotalClassCount
110 (JNIEnv *env, jobject dummy)
111 {
112 /* JMM_CLASS_LOADED_COUNT is the total number of classes loaded */
113 jlong count = jmm_interface->GetLongAttribute(env, NULL,
114 JMM_CLASS_LOADED_COUNT);
115 return count;
116 }
117
118 JNIEXPORT jlong JNICALL
Java_sun_management_VMManagementImpl_getUnloadedClassCount(JNIEnv * env,jobject dummy)119 Java_sun_management_VMManagementImpl_getUnloadedClassCount
120 (JNIEnv *env, jobject dummy)
121 {
122 /* JMM_CLASS_UNLOADED_COUNT is the total number of classes unloaded */
123 jlong count = jmm_interface->GetLongAttribute(env, NULL,
124 JMM_CLASS_UNLOADED_COUNT);
125 return count;
126 }
127
128 JNIEXPORT jboolean JNICALL
Java_sun_management_VMManagementImpl_getVerboseGC(JNIEnv * env,jobject dummy)129 Java_sun_management_VMManagementImpl_getVerboseGC
130 (JNIEnv *env, jobject dummy)
131 {
132 return jmm_interface->GetBoolAttribute(env, JMM_VERBOSE_GC);
133 }
134
135 JNIEXPORT jboolean JNICALL
Java_sun_management_VMManagementImpl_getVerboseClass(JNIEnv * env,jobject dummy)136 Java_sun_management_VMManagementImpl_getVerboseClass
137 (JNIEnv *env, jobject dummy)
138 {
139 return jmm_interface->GetBoolAttribute(env, JMM_VERBOSE_CLASS);
140 }
141
142 JNIEXPORT jlong JNICALL
Java_sun_management_VMManagementImpl_getTotalThreadCount(JNIEnv * env,jobject dummy)143 Java_sun_management_VMManagementImpl_getTotalThreadCount
144 (JNIEnv *env, jobject dummy)
145 {
146 return jmm_interface->GetLongAttribute(env, NULL,
147 JMM_THREAD_TOTAL_COUNT);
148 }
149
150 JNIEXPORT jint JNICALL
Java_sun_management_VMManagementImpl_getLiveThreadCount(JNIEnv * env,jobject dummy)151 Java_sun_management_VMManagementImpl_getLiveThreadCount
152 (JNIEnv *env, jobject dummy)
153 {
154 jlong count = jmm_interface->GetLongAttribute(env, NULL,
155 JMM_THREAD_LIVE_COUNT);
156 return (jint) count;
157 }
158
159 JNIEXPORT jint JNICALL
Java_sun_management_VMManagementImpl_getPeakThreadCount(JNIEnv * env,jobject dummy)160 Java_sun_management_VMManagementImpl_getPeakThreadCount
161 (JNIEnv *env, jobject dummy)
162 {
163 jlong count = jmm_interface->GetLongAttribute(env, NULL,
164 JMM_THREAD_PEAK_COUNT);
165 return (jint) count;
166 }
167
168 JNIEXPORT jint JNICALL
Java_sun_management_VMManagementImpl_getDaemonThreadCount(JNIEnv * env,jobject dummy)169 Java_sun_management_VMManagementImpl_getDaemonThreadCount
170 (JNIEnv *env, jobject dummy)
171 {
172 jlong count = jmm_interface->GetLongAttribute(env, NULL,
173 JMM_THREAD_DAEMON_COUNT);
174 return (jint) count;
175 }
176
177 JNIEXPORT jlong JNICALL
Java_sun_management_VMManagementImpl_getTotalCompileTime(JNIEnv * env,jobject dummy)178 Java_sun_management_VMManagementImpl_getTotalCompileTime
179 (JNIEnv *env, jobject dummy)
180 {
181 return jmm_interface->GetLongAttribute(env, NULL,
182 JMM_COMPILE_TOTAL_TIME_MS);
183 }
184
185 JNIEXPORT jlong JNICALL
Java_sun_management_VMManagementImpl_getStartupTime(JNIEnv * env,jobject dummy)186 Java_sun_management_VMManagementImpl_getStartupTime
187 (JNIEnv *env, jobject dummy)
188 {
189 return jmm_interface->GetLongAttribute(env, NULL,
190 JMM_JVM_INIT_DONE_TIME_MS);
191 }
192
193 JNIEXPORT jlong JNICALL
Java_sun_management_VMManagementImpl_getUptime0(JNIEnv * env,jobject dummy)194 Java_sun_management_VMManagementImpl_getUptime0
195 (JNIEnv *env, jobject dummy)
196 {
197 return jmm_interface->GetLongAttribute(env, NULL, JMM_JVM_UPTIME_MS);
198 }
199
200 JNIEXPORT jboolean JNICALL
Java_sun_management_VMManagementImpl_isThreadContentionMonitoringEnabled(JNIEnv * env,jobject dummy)201 Java_sun_management_VMManagementImpl_isThreadContentionMonitoringEnabled
202 (JNIEnv *env, jobject dummy)
203 {
204 return jmm_interface->GetBoolAttribute(env,
205 JMM_THREAD_CONTENTION_MONITORING);
206 }
207
208 JNIEXPORT jboolean JNICALL
Java_sun_management_VMManagementImpl_isThreadCpuTimeEnabled(JNIEnv * env,jobject dummy)209 Java_sun_management_VMManagementImpl_isThreadCpuTimeEnabled
210 (JNIEnv *env, jobject dummy)
211 {
212 return jmm_interface->GetBoolAttribute(env, JMM_THREAD_CPU_TIME);
213 }
214
215 JNIEXPORT jboolean JNICALL
Java_sun_management_VMManagementImpl_isThreadAllocatedMemoryEnabled(JNIEnv * env,jobject dummy)216 Java_sun_management_VMManagementImpl_isThreadAllocatedMemoryEnabled
217 (JNIEnv *env, jobject dummy)
218 {
219 return jmm_interface->GetBoolAttribute(env, JMM_THREAD_ALLOCATED_MEMORY);
220 }
221
222 JNIEXPORT jint JNICALL
Java_sun_management_VMManagementImpl_getProcessId(JNIEnv * env,jobject dummy)223 Java_sun_management_VMManagementImpl_getProcessId
224 (JNIEnv *env, jobject dummy)
225 {
226 jlong pid = jmm_interface->GetLongAttribute(env, NULL,
227 JMM_OS_PROCESS_ID);
228 return (jint) pid;
229 }
230
231 JNIEXPORT jint JNICALL
Java_sun_management_VMManagementImpl_getAvailableProcessors(JNIEnv * env,jobject dummy)232 Java_sun_management_VMManagementImpl_getAvailableProcessors
233 (JNIEnv *env, jobject dummy)
234 {
235 return JVM_ActiveProcessorCount();
236 }
237
238 JNIEXPORT jlong JNICALL
Java_sun_management_VMManagementImpl_getSafepointCount(JNIEnv * env,jobject dummy)239 Java_sun_management_VMManagementImpl_getSafepointCount
240 (JNIEnv *env, jobject dummy)
241 {
242 return jmm_interface->GetLongAttribute(env, NULL,
243 JMM_SAFEPOINT_COUNT);
244 }
245
246 JNIEXPORT jlong JNICALL
Java_sun_management_VMManagementImpl_getTotalSafepointTime(JNIEnv * env,jobject dummy)247 Java_sun_management_VMManagementImpl_getTotalSafepointTime
248 (JNIEnv *env, jobject dummy)
249 {
250 return jmm_interface->GetLongAttribute(env, NULL,
251 JMM_TOTAL_STOPPED_TIME_MS);
252 }
253
254 JNIEXPORT jlong JNICALL
Java_sun_management_VMManagementImpl_getSafepointSyncTime(JNIEnv * env,jobject dummy)255 Java_sun_management_VMManagementImpl_getSafepointSyncTime
256 (JNIEnv *env, jobject dummy)
257 {
258 return jmm_interface->GetLongAttribute(env, NULL,
259 JMM_TOTAL_SAFEPOINTSYNC_TIME_MS);
260 }
261
262 JNIEXPORT jlong JNICALL
Java_sun_management_VMManagementImpl_getTotalApplicationNonStoppedTime(JNIEnv * env,jobject dummy)263 Java_sun_management_VMManagementImpl_getTotalApplicationNonStoppedTime
264 (JNIEnv *env, jobject dummy)
265 {
266 return jmm_interface->GetLongAttribute(env, NULL,
267 JMM_TOTAL_APP_TIME_MS);
268 }
269
270 JNIEXPORT jlong JNICALL
Java_sun_management_VMManagementImpl_getLoadedClassSize(JNIEnv * env,jobject dummy)271 Java_sun_management_VMManagementImpl_getLoadedClassSize
272 (JNIEnv *env, jobject dummy)
273 {
274 return jmm_interface->GetLongAttribute(env, NULL,
275 JMM_CLASS_LOADED_BYTES);
276 }
277
278 JNIEXPORT jlong JNICALL
Java_sun_management_VMManagementImpl_getUnloadedClassSize(JNIEnv * env,jobject dummy)279 Java_sun_management_VMManagementImpl_getUnloadedClassSize
280 (JNIEnv *env, jobject dummy)
281 {
282 return jmm_interface->GetLongAttribute(env, NULL,
283 JMM_CLASS_UNLOADED_BYTES);
284 }
285 JNIEXPORT jlong JNICALL
Java_sun_management_VMManagementImpl_getClassLoadingTime(JNIEnv * env,jobject dummy)286 Java_sun_management_VMManagementImpl_getClassLoadingTime
287 (JNIEnv *env, jobject dummy)
288 {
289 return jmm_interface->GetLongAttribute(env, NULL,
290 JMM_TOTAL_CLASSLOAD_TIME_MS);
291 }
292
293
294 JNIEXPORT jlong JNICALL
Java_sun_management_VMManagementImpl_getMethodDataSize(JNIEnv * env,jobject dummy)295 Java_sun_management_VMManagementImpl_getMethodDataSize
296 (JNIEnv *env, jobject dummy)
297 {
298 return jmm_interface->GetLongAttribute(env, NULL,
299 JMM_METHOD_DATA_SIZE_BYTES);
300 }
301
302 JNIEXPORT jlong JNICALL
Java_sun_management_VMManagementImpl_getInitializedClassCount(JNIEnv * env,jobject dummy)303 Java_sun_management_VMManagementImpl_getInitializedClassCount
304 (JNIEnv *env, jobject dummy)
305 {
306 return jmm_interface->GetLongAttribute(env, NULL,
307 JMM_CLASS_INIT_TOTAL_COUNT);
308 }
309
310 JNIEXPORT jlong JNICALL
Java_sun_management_VMManagementImpl_getClassInitializationTime(JNIEnv * env,jobject dummy)311 Java_sun_management_VMManagementImpl_getClassInitializationTime
312 (JNIEnv *env, jobject dummy)
313 {
314 return jmm_interface->GetLongAttribute(env, NULL,
315 JMM_CLASS_INIT_TOTAL_TIME_MS);
316 }
317
318 JNIEXPORT jlong JNICALL
Java_sun_management_VMManagementImpl_getClassVerificationTime(JNIEnv * env,jobject dummy)319 Java_sun_management_VMManagementImpl_getClassVerificationTime
320 (JNIEnv *env, jobject dummy)
321 {
322 return jmm_interface->GetLongAttribute(env, NULL,
323 JMM_CLASS_VERIFY_TOTAL_TIME_MS);
324 }
325