Mercurial > jdk8-mips64-public > hotspot / file revision
src/share/vm/services/jmm.h@eef07cd490d4
src/share/vm/services/jmm.h
Wed, 03 Jul 2019 20:42:37 +0800
- author
- aoqi
- date
- Wed, 03 Jul 2019 20:42:37 +0800
- changeset 9637
- eef07cd490d4
- parent 6876
- 710a3c8b516e
- child 10015
- eb7ce841ccec
- permissions
- -rw-r--r--
Merge
1 /*
2 * Copyright (c) 2003, 2013, 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 */
26 #ifndef _JAVA_JMM_H_
27 #define _JAVA_JMM_H_
29 /*
30 * This is a private interface used by JDK for JVM monitoring
31 * and management.
32 *
33 * Bump the version number when either of the following happens:
34 *
35 * 1. There is a change in functions in JmmInterface.
36 *
37 * 2. There is a change in the contract between VM and Java classes.
38 */
40 #include "jni.h"
42 #ifdef __cplusplus
43 extern "C" {
44 #endif
46 enum {
47 JMM_VERSION_1 = 0x20010000,
48 JMM_VERSION_1_0 = 0x20010000,
49 JMM_VERSION_1_1 = 0x20010100, // JDK 6
50 JMM_VERSION_1_2 = 0x20010200, // JDK 7
51 JMM_VERSION_1_2_1 = 0x20010201, // JDK 7 GA
52 JMM_VERSION_1_2_2 = 0x20010202,
53 JMM_VERSION = 0x20010203
54 };
56 typedef struct {
57 unsigned int isLowMemoryDetectionSupported : 1;
58 unsigned int isCompilationTimeMonitoringSupported : 1;
59 unsigned int isThreadContentionMonitoringSupported : 1;
60 unsigned int isCurrentThreadCpuTimeSupported : 1;
61 unsigned int isOtherThreadCpuTimeSupported : 1;
62 unsigned int isBootClassPathSupported : 1;
63 unsigned int isObjectMonitorUsageSupported : 1;
64 unsigned int isSynchronizerUsageSupported : 1;
65 unsigned int isThreadAllocatedMemorySupported : 1;
66 unsigned int isRemoteDiagnosticCommandsSupported : 1;
67 unsigned int : 22;
68 } jmmOptionalSupport;
70 typedef enum {
71 JMM_CLASS_LOADED_COUNT = 1, /* Total number of loaded classes */
72 JMM_CLASS_UNLOADED_COUNT = 2, /* Total number of unloaded classes */
73 JMM_THREAD_TOTAL_COUNT = 3, /* Total number of threads that have been started */
74 JMM_THREAD_LIVE_COUNT = 4, /* Current number of live threads */
75 JMM_THREAD_PEAK_COUNT = 5, /* Peak number of live threads */
76 JMM_THREAD_DAEMON_COUNT = 6, /* Current number of daemon threads */
77 JMM_JVM_INIT_DONE_TIME_MS = 7, /* Time when the JVM finished initialization */
78 JMM_COMPILE_TOTAL_TIME_MS = 8, /* Total accumulated time spent in compilation */
79 JMM_GC_TIME_MS = 9, /* Total accumulated time spent in collection */
80 JMM_GC_COUNT = 10, /* Total number of collections */
81 JMM_JVM_UPTIME_MS = 11, /* The JVM uptime in milliseconds */
83 JMM_INTERNAL_ATTRIBUTE_INDEX = 100,
84 JMM_CLASS_LOADED_BYTES = 101, /* Number of bytes loaded instance classes */
85 JMM_CLASS_UNLOADED_BYTES = 102, /* Number of bytes unloaded instance classes */
86 JMM_TOTAL_CLASSLOAD_TIME_MS = 103, /* Accumulated VM class loader time (TraceClassLoadingTime) */
87 JMM_VM_GLOBAL_COUNT = 104, /* Number of VM internal flags */
88 JMM_SAFEPOINT_COUNT = 105, /* Total number of safepoints */
89 JMM_TOTAL_SAFEPOINTSYNC_TIME_MS = 106, /* Accumulated time spent getting to safepoints */
90 JMM_TOTAL_STOPPED_TIME_MS = 107, /* Accumulated time spent at safepoints */
91 JMM_TOTAL_APP_TIME_MS = 108, /* Accumulated time spent in Java application */
92 JMM_VM_THREAD_COUNT = 109, /* Current number of VM internal threads */
93 JMM_CLASS_INIT_TOTAL_COUNT = 110, /* Number of classes for which initializers were run */
94 JMM_CLASS_INIT_TOTAL_TIME_MS = 111, /* Accumulated time spent in class initializers */
95 JMM_METHOD_DATA_SIZE_BYTES = 112, /* Size of method data in memory */
96 JMM_CLASS_VERIFY_TOTAL_TIME_MS = 113, /* Accumulated time spent in class verifier */
97 JMM_SHARED_CLASS_LOADED_COUNT = 114, /* Number of shared classes loaded */
98 JMM_SHARED_CLASS_UNLOADED_COUNT = 115, /* Number of shared classes unloaded */
99 JMM_SHARED_CLASS_LOADED_BYTES = 116, /* Number of bytes loaded shared classes */
100 JMM_SHARED_CLASS_UNLOADED_BYTES = 117, /* Number of bytes unloaded shared classes */
102 JMM_OS_ATTRIBUTE_INDEX = 200,
103 JMM_OS_PROCESS_ID = 201, /* Process id of the JVM */
104 JMM_OS_MEM_TOTAL_PHYSICAL_BYTES = 202, /* Physical memory size */
106 JMM_GC_EXT_ATTRIBUTE_INFO_SIZE = 401 /* the size of the GC specific attributes for a given GC memory manager */
107 } jmmLongAttribute;
109 typedef enum {
110 JMM_VERBOSE_GC = 21,
111 JMM_VERBOSE_CLASS = 22,
112 JMM_THREAD_CONTENTION_MONITORING = 23,
113 JMM_THREAD_CPU_TIME = 24,
114 JMM_THREAD_ALLOCATED_MEMORY = 25
115 } jmmBoolAttribute;
118 enum {
119 JMM_THREAD_STATE_FLAG_SUSPENDED = 0x00100000,
120 JMM_THREAD_STATE_FLAG_NATIVE = 0x00400000
121 };
123 #define JMM_THREAD_STATE_FLAG_MASK 0xFFF00000
125 typedef enum {
126 JMM_STAT_PEAK_THREAD_COUNT = 801,
127 JMM_STAT_THREAD_CONTENTION_COUNT = 802,
128 JMM_STAT_THREAD_CONTENTION_TIME = 803,
129 JMM_STAT_THREAD_CONTENTION_STAT = 804,
130 JMM_STAT_PEAK_POOL_USAGE = 805,
131 JMM_STAT_GC_STAT = 806
132 } jmmStatisticType;
134 typedef enum {
135 JMM_USAGE_THRESHOLD_HIGH = 901,
136 JMM_USAGE_THRESHOLD_LOW = 902,
137 JMM_COLLECTION_USAGE_THRESHOLD_HIGH = 903,
138 JMM_COLLECTION_USAGE_THRESHOLD_LOW = 904
139 } jmmThresholdType;
141 /* Should match what is allowed in globals.hpp */
142 typedef enum {
143 JMM_VMGLOBAL_TYPE_UNKNOWN = 0,
144 JMM_VMGLOBAL_TYPE_JBOOLEAN = 1,
145 JMM_VMGLOBAL_TYPE_JSTRING = 2,
146 JMM_VMGLOBAL_TYPE_JLONG = 3
147 } jmmVMGlobalType;
149 typedef enum {
150 JMM_VMGLOBAL_ORIGIN_DEFAULT = 1, /* Default value */
151 JMM_VMGLOBAL_ORIGIN_COMMAND_LINE = 2, /* Set at command line (or JNI invocation) */
152 JMM_VMGLOBAL_ORIGIN_MANAGEMENT = 3, /* Set via management interface */
153 JMM_VMGLOBAL_ORIGIN_ENVIRON_VAR = 4, /* Set via environment variables */
154 JMM_VMGLOBAL_ORIGIN_CONFIG_FILE = 5, /* Set via config file (such as .hotspotrc) */
155 JMM_VMGLOBAL_ORIGIN_ERGONOMIC = 6, /* Set via ergonomic */
156 JMM_VMGLOBAL_ORIGIN_OTHER = 99 /* Set via some other mechanism */
157 } jmmVMGlobalOrigin;
159 typedef struct {
160 jstring name;
161 jvalue value;
162 jmmVMGlobalType type; /* Data type */
163 jmmVMGlobalOrigin origin; /* Default or non-default value */
164 unsigned int writeable : 1; /* dynamically writeable */
165 unsigned int external : 1; /* external supported interface */
166 unsigned int reserved : 30;
167 void *reserved1;
168 void *reserved2;
169 } jmmVMGlobal;
171 typedef struct {
172 const char* name;
173 char type;
174 const char* description;
175 } jmmExtAttributeInfo;
177 /* Caller has to set the following fields before calling GetLastGCStat
178 * o usage_before_gc - array of MemoryUsage objects
179 * o usage_after_gc - array of MemoryUsage objects
180 * o gc_ext_attribute_values_size - size of gc_ext_atttribute_values array
181 * o gc_ext_attribtue_values - array of jvalues
182 */
183 typedef struct {
184 jlong gc_index; /* Index of the collections */
185 jlong start_time; /* Start time of the GC */
186 jlong end_time; /* End time of the GC */
187 jobjectArray usage_before_gc; /* Memory usage array before GC */
188 jobjectArray usage_after_gc; /* Memory usage array after GC */
189 jint gc_ext_attribute_values_size; /* set by the caller of GetGCStat */
190 jvalue* gc_ext_attribute_values; /* Array of jvalue for GC extension attributes */
191 jint num_gc_ext_attributes; /* number of GC extension attribute values s are filled */
192 /* -1 indicates gc_ext_attribute_values is not big enough */
193 } jmmGCStat;
195 typedef struct {
196 const char* name; /* Name of the diagnostic command */
197 const char* description; /* Short description */
198 const char* impact; /* Impact on the JVM */
199 const char* permission_class; /* Class name of the required permission if any */
200 const char* permission_name; /* Permission name of the required permission if any */
201 const char* permission_action; /* Action name of the required permission if any*/
202 int num_arguments; /* Number of supported options or arguments */
203 jboolean enabled; /* True if the diagnostic command can be invoked, false otherwise */
204 } dcmdInfo;
206 typedef struct {
207 const char* name; /* Option/Argument name*/
208 const char* description; /* Short description */
209 const char* type; /* Type: STRING, BOOLEAN, etc. */
210 const char* default_string; /* Default value in a parsable string */
211 jboolean mandatory; /* True if the option/argument is mandatory */
212 jboolean option; /* True if it is an option, false if it is an argument */
213 /* (see diagnosticFramework.hpp for option/argument definitions) */
214 jboolean multiple; /* True if the option can be specified several time */
215 int position; /* Expected position for this argument (this field is */
216 /* meaningless for options) */
217 } dcmdArgInfo;
219 typedef struct jmmInterface_1_ {
220 void* reserved1;
221 void* reserved2;
223 jint (JNICALL *GetVersion) (JNIEnv *env);
225 jint (JNICALL *GetOptionalSupport) (JNIEnv *env,
226 jmmOptionalSupport* support_ptr);
228 /* This is used by JDK 6 and earlier.
229 * For JDK 7 and after, use GetInputArgumentArray.
230 */
231 jobject (JNICALL *GetInputArguments) (JNIEnv *env);
233 jint (JNICALL *GetThreadInfo) (JNIEnv *env,
234 jlongArray ids,
235 jint maxDepth,
236 jobjectArray infoArray);
237 jobjectArray (JNICALL *GetInputArgumentArray) (JNIEnv *env);
239 jobjectArray (JNICALL *GetMemoryPools) (JNIEnv* env, jobject mgr);
241 jobjectArray (JNICALL *GetMemoryManagers) (JNIEnv* env, jobject pool);
243 jobject (JNICALL *GetMemoryPoolUsage) (JNIEnv* env, jobject pool);
244 jobject (JNICALL *GetPeakMemoryPoolUsage) (JNIEnv* env, jobject pool);
246 void (JNICALL *GetThreadAllocatedMemory)
247 (JNIEnv *env,
248 jlongArray ids,
249 jlongArray sizeArray);
251 jobject (JNICALL *GetMemoryUsage) (JNIEnv* env, jboolean heap);
253 jlong (JNICALL *GetLongAttribute) (JNIEnv *env, jobject obj, jmmLongAttribute att);
254 jboolean (JNICALL *GetBoolAttribute) (JNIEnv *env, jmmBoolAttribute att);
255 jboolean (JNICALL *SetBoolAttribute) (JNIEnv *env, jmmBoolAttribute att, jboolean flag);
257 jint (JNICALL *GetLongAttributes) (JNIEnv *env,
258 jobject obj,
259 jmmLongAttribute* atts,
260 jint count,
261 jlong* result);
263 jobjectArray (JNICALL *FindCircularBlockedThreads) (JNIEnv *env);
265 // Not used in JDK 6 or JDK 7
266 jlong (JNICALL *GetThreadCpuTime) (JNIEnv *env, jlong thread_id);
268 jobjectArray (JNICALL *GetVMGlobalNames) (JNIEnv *env);
269 jint (JNICALL *GetVMGlobals) (JNIEnv *env,
270 jobjectArray names,
271 jmmVMGlobal *globals,
272 jint count);
274 jint (JNICALL *GetInternalThreadTimes) (JNIEnv *env,
275 jobjectArray names,
276 jlongArray times);
278 jboolean (JNICALL *ResetStatistic) (JNIEnv *env,
279 jvalue obj,
280 jmmStatisticType type);
282 void (JNICALL *SetPoolSensor) (JNIEnv *env,
283 jobject pool,
284 jmmThresholdType type,
285 jobject sensor);
287 jlong (JNICALL *SetPoolThreshold) (JNIEnv *env,
288 jobject pool,
289 jmmThresholdType type,
290 jlong threshold);
291 jobject (JNICALL *GetPoolCollectionUsage) (JNIEnv* env, jobject pool);
293 jint (JNICALL *GetGCExtAttributeInfo) (JNIEnv *env,
294 jobject mgr,
295 jmmExtAttributeInfo *ext_info,
296 jint count);
297 void (JNICALL *GetLastGCStat) (JNIEnv *env,
298 jobject mgr,
299 jmmGCStat *gc_stat);
301 jlong (JNICALL *GetThreadCpuTimeWithKind)
302 (JNIEnv *env,
303 jlong thread_id,
304 jboolean user_sys_cpu_time);
305 void (JNICALL *GetThreadCpuTimesWithKind)
306 (JNIEnv *env,
307 jlongArray ids,
308 jlongArray timeArray,
309 jboolean user_sys_cpu_time);
311 jint (JNICALL *DumpHeap0) (JNIEnv *env,
312 jstring outputfile,
313 jboolean live);
314 jobjectArray (JNICALL *FindDeadlocks) (JNIEnv *env,
315 jboolean object_monitors_only);
316 void (JNICALL *SetVMGlobal) (JNIEnv *env,
317 jstring flag_name,
318 jvalue new_value);
319 void* reserved6;
320 jobjectArray (JNICALL *DumpThreads) (JNIEnv *env,
321 jlongArray ids,
322 jboolean lockedMonitors,
323 jboolean lockedSynchronizers);
324 void (JNICALL *SetGCNotificationEnabled) (JNIEnv *env,
325 jobject mgr,
326 jboolean enabled);
327 jobjectArray (JNICALL *GetDiagnosticCommands) (JNIEnv *env);
328 void (JNICALL *GetDiagnosticCommandInfo)
329 (JNIEnv *env,
330 jobjectArray cmds,
331 dcmdInfo *infoArray);
332 void (JNICALL *GetDiagnosticCommandArgumentsInfo)
333 (JNIEnv *env,
334 jstring commandName,
335 dcmdArgInfo *infoArray);
336 jstring (JNICALL *ExecuteDiagnosticCommand)
337 (JNIEnv *env,
338 jstring command);
339 void (JNICALL *SetDiagnosticFrameworkNotificationEnabled)
340 (JNIEnv *env,
341 jboolean enabled);
342 } JmmInterface;
344 #ifdef __cplusplus
345 } /* extern "C" */
346 #endif /* __cplusplus */
348 #endif /* !_JAVA_JMM_H_ */
