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
34JNIEXPORT jstring JNICALL
35Java_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
52static 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
62JNIEXPORT void JNICALL
63Java_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
101JNIEXPORT jobjectArray JNICALL
102Java_sun_management_VMManagementImpl_getVmArguments0
103 (JNIEnv *env, jobject dummy)
104{
105 return JVM_GetVmArguments(env);
106}
107
108JNIEXPORT jlong JNICALL
109Java_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
118JNIEXPORT jlong JNICALL
119Java_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
128JNIEXPORT jboolean JNICALL
129Java_sun_management_VMManagementImpl_getVerboseGC
130 (JNIEnv *env, jobject dummy)
131{
132 return jmm_interface->GetBoolAttribute(env, JMM_VERBOSE_GC);
133}
134
135JNIEXPORT jboolean JNICALL
136Java_sun_management_VMManagementImpl_getVerboseClass
137 (JNIEnv *env, jobject dummy)
138{
139 return jmm_interface->GetBoolAttribute(env, JMM_VERBOSE_CLASS);
140}
141
142JNIEXPORT jlong JNICALL
143Java_sun_management_VMManagementImpl_getTotalThreadCount
144 (JNIEnv *env, jobject dummy)
145{
146 return jmm_interface->GetLongAttribute(env, NULL,
147 JMM_THREAD_TOTAL_COUNT);
148}
149
150JNIEXPORT jint JNICALL
151Java_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
159JNIEXPORT jint JNICALL
160Java_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
168JNIEXPORT jint JNICALL
169Java_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
177JNIEXPORT jlong JNICALL
178Java_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
185JNIEXPORT jlong JNICALL
186Java_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
193JNIEXPORT jlong JNICALL
194Java_sun_management_VMManagementImpl_getUptime0
195 (JNIEnv *env, jobject dummy)
196{
197 return jmm_interface->GetLongAttribute(env, NULL, JMM_JVM_UPTIME_MS);
198}
199
200JNIEXPORT jboolean JNICALL
201Java_sun_management_VMManagementImpl_isThreadContentionMonitoringEnabled
202 (JNIEnv *env, jobject dummy)
203{
204 return jmm_interface->GetBoolAttribute(env,
205 JMM_THREAD_CONTENTION_MONITORING);
206}
207
208JNIEXPORT jboolean JNICALL
209Java_sun_management_VMManagementImpl_isThreadCpuTimeEnabled
210 (JNIEnv *env, jobject dummy)
211{
212 return jmm_interface->GetBoolAttribute(env, JMM_THREAD_CPU_TIME);
213}
214
215JNIEXPORT jboolean JNICALL
216Java_sun_management_VMManagementImpl_isThreadAllocatedMemoryEnabled
217 (JNIEnv *env, jobject dummy)
218{
219 return jmm_interface->GetBoolAttribute(env, JMM_THREAD_ALLOCATED_MEMORY);
220}
221
222JNIEXPORT jint JNICALL
223Java_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
231JNIEXPORT jint JNICALL
232Java_sun_management_VMManagementImpl_getAvailableProcessors
233 (JNIEnv *env, jobject dummy)
234{
235 return JVM_ActiveProcessorCount();
236}
237
238JNIEXPORT jlong JNICALL
239Java_sun_management_VMManagementImpl_getSafepointCount
240 (JNIEnv *env, jobject dummy)
241{
242 return jmm_interface->GetLongAttribute(env, NULL,
243 JMM_SAFEPOINT_COUNT);
244}
245
246JNIEXPORT jlong JNICALL
247Java_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
254JNIEXPORT jlong JNICALL
255Java_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
262JNIEXPORT jlong JNICALL
263Java_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
270JNIEXPORT jlong JNICALL
271Java_sun_management_VMManagementImpl_getLoadedClassSize
272 (JNIEnv *env, jobject dummy)
273{
274 return jmm_interface->GetLongAttribute(env, NULL,
275 JMM_CLASS_LOADED_BYTES);
276}
277
278JNIEXPORT jlong JNICALL
279Java_sun_management_VMManagementImpl_getUnloadedClassSize
280 (JNIEnv *env, jobject dummy)
281{
282 return jmm_interface->GetLongAttribute(env, NULL,
283 JMM_CLASS_UNLOADED_BYTES);
284}
285JNIEXPORT jlong JNICALL
286Java_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
294JNIEXPORT jlong JNICALL
295Java_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
302JNIEXPORT jlong JNICALL
303Java_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
310JNIEXPORT jlong JNICALL
311Java_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
318JNIEXPORT jlong JNICALL
319Java_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