Mercurial > jdk8-mips64-public > hotspot / file revision
src/share/vm/services/jmm.h@17c778814856
src/share/vm/services/jmm.h
Fri, 14 Jan 2011 13:47:53 -0500
- author
- coleenp
- date
- Fri, 14 Jan 2011 13:47:53 -0500
- changeset 2463
- 17c778814856
- parent 2423
- b1a2afa37ec4
- child 2888
- 78542e2b5e35
- permissions
- -rw-r--r--
6811367: Fix code in HeapDumper::dump_heap() to avoid buffer overrun
Summary: Check buffer size before using and use dynamic buffer sizes for subsequent calls.
Reviewed-by: kamg, dholmes
1 /*
2 * Copyright (c) 2003, 2011, 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 = 0x20010200
52 };
54 typedef struct {
55 unsigned int isLowMemoryDetectionSupported : 1;
56 unsigned int isCompilationTimeMonitoringSupported : 1;
57 unsigned int isThreadContentionMonitoringSupported : 1;
58 unsigned int isCurrentThreadCpuTimeSupported : 1;
59 unsigned int isOtherThreadCpuTimeSupported : 1;
60 unsigned int isBootClassPathSupported : 1;
61 unsigned int isObjectMonitorUsageSupported : 1;
62 unsigned int isSynchronizerUsageSupported : 1;
63 unsigned int isThreadAllocatedMemorySupported : 1;
64 unsigned int : 23;
65 } jmmOptionalSupport;
67 typedef enum {
68 JMM_CLASS_LOADED_COUNT = 1, /* Total number of loaded classes */
69 JMM_CLASS_UNLOADED_COUNT = 2, /* Total number of unloaded classes */
70 JMM_THREAD_TOTAL_COUNT = 3, /* Total number of threads that have been started */
71 JMM_THREAD_LIVE_COUNT = 4, /* Current number of live threads */
72 JMM_THREAD_PEAK_COUNT = 5, /* Peak number of live threads */
73 JMM_THREAD_DAEMON_COUNT = 6, /* Current number of daemon threads */
74 JMM_JVM_INIT_DONE_TIME_MS = 7, /* Time when the JVM finished initialization */
75 JMM_COMPILE_TOTAL_TIME_MS = 8, /* Total accumulated time spent in compilation */
76 JMM_GC_TIME_MS = 9, /* Total accumulated time spent in collection */
77 JMM_GC_COUNT = 10, /* Total number of collections */
79 JMM_INTERNAL_ATTRIBUTE_INDEX = 100,
80 JMM_CLASS_LOADED_BYTES = 101, /* Number of bytes loaded instance classes */
81 JMM_CLASS_UNLOADED_BYTES = 102, /* Number of bytes unloaded instance classes */
82 JMM_TOTAL_CLASSLOAD_TIME_MS = 103, /* Accumulated VM class loader time (TraceClassLoadingTime) */
83 JMM_VM_GLOBAL_COUNT = 104, /* Number of VM internal flags */
84 JMM_SAFEPOINT_COUNT = 105, /* Total number of safepoints */
85 JMM_TOTAL_SAFEPOINTSYNC_TIME_MS = 106, /* Accumulated time spent getting to safepoints */
86 JMM_TOTAL_STOPPED_TIME_MS = 107, /* Accumulated time spent at safepoints */
87 JMM_TOTAL_APP_TIME_MS = 108, /* Accumulated time spent in Java application */
88 JMM_VM_THREAD_COUNT = 109, /* Current number of VM internal threads */
89 JMM_CLASS_INIT_TOTAL_COUNT = 110, /* Number of classes for which initializers were run */
90 JMM_CLASS_INIT_TOTAL_TIME_MS = 111, /* Accumulated time spent in class initializers */
91 JMM_METHOD_DATA_SIZE_BYTES = 112, /* Size of method data in memory */
92 JMM_CLASS_VERIFY_TOTAL_TIME_MS = 113, /* Accumulated time spent in class verifier */
93 JMM_SHARED_CLASS_LOADED_COUNT = 114, /* Number of shared classes loaded */
94 JMM_SHARED_CLASS_UNLOADED_COUNT = 115, /* Number of shared classes unloaded */
95 JMM_SHARED_CLASS_LOADED_BYTES = 116, /* Number of bytes loaded shared classes */
96 JMM_SHARED_CLASS_UNLOADED_BYTES = 117, /* Number of bytes unloaded shared classes */
98 JMM_OS_ATTRIBUTE_INDEX = 200,
99 JMM_OS_PROCESS_ID = 201, /* Process id of the JVM */
100 JMM_OS_MEM_TOTAL_PHYSICAL_BYTES = 202, /* Physical memory size */
102 JMM_GC_EXT_ATTRIBUTE_INFO_SIZE = 401 /* the size of the GC specific attributes for a given GC memory manager */
103 } jmmLongAttribute;
105 typedef enum {
106 JMM_VERBOSE_GC = 21,
107 JMM_VERBOSE_CLASS = 22,
108 JMM_THREAD_CONTENTION_MONITORING = 23,
109 JMM_THREAD_CPU_TIME = 24,
110 JMM_THREAD_ALLOCATED_MEMORY = 25
111 } jmmBoolAttribute;
114 enum {
115 JMM_THREAD_STATE_FLAG_SUSPENDED = 0x00100000,
116 JMM_THREAD_STATE_FLAG_NATIVE = 0x00400000
117 };
119 #define JMM_THREAD_STATE_FLAG_MASK 0xFFF00000
121 typedef enum {
122 JMM_STAT_PEAK_THREAD_COUNT = 801,
123 JMM_STAT_THREAD_CONTENTION_COUNT = 802,
124 JMM_STAT_THREAD_CONTENTION_TIME = 803,
125 JMM_STAT_THREAD_CONTENTION_STAT = 804,
126 JMM_STAT_PEAK_POOL_USAGE = 805,
127 JMM_STAT_GC_STAT = 806
128 } jmmStatisticType;
130 typedef enum {
131 JMM_USAGE_THRESHOLD_HIGH = 901,
132 JMM_USAGE_THRESHOLD_LOW = 902,
133 JMM_COLLECTION_USAGE_THRESHOLD_HIGH = 903,
134 JMM_COLLECTION_USAGE_THRESHOLD_LOW = 904
135 } jmmThresholdType;
137 /* Should match what is allowed in globals.hpp */
138 typedef enum {
139 JMM_VMGLOBAL_TYPE_UNKNOWN = 0,
140 JMM_VMGLOBAL_TYPE_JBOOLEAN = 1,
141 JMM_VMGLOBAL_TYPE_JSTRING = 2,
142 JMM_VMGLOBAL_TYPE_JLONG = 3
143 } jmmVMGlobalType;
145 typedef enum {
146 JMM_VMGLOBAL_ORIGIN_DEFAULT = 1, /* Default value */
147 JMM_VMGLOBAL_ORIGIN_COMMAND_LINE = 2, /* Set at command line (or JNI invocation) */
148 JMM_VMGLOBAL_ORIGIN_MANAGEMENT = 3, /* Set via management interface */
149 JMM_VMGLOBAL_ORIGIN_ENVIRON_VAR = 4, /* Set via environment variables */
150 JMM_VMGLOBAL_ORIGIN_CONFIG_FILE = 5, /* Set via config file (such as .hotspotrc) */
151 JMM_VMGLOBAL_ORIGIN_ERGONOMIC = 6, /* Set via ergonomic */
152 JMM_VMGLOBAL_ORIGIN_OTHER = 99 /* Set via some other mechanism */
153 } jmmVMGlobalOrigin;
155 typedef struct {
156 jstring name;
157 jvalue value;
158 jmmVMGlobalType type; /* Data type */
159 jmmVMGlobalOrigin origin; /* Default or non-default value */
160 unsigned int writeable : 1; /* dynamically writeable */
161 unsigned int external : 1; /* external supported interface */
162 unsigned int reserved : 30;
163 void *reserved1;
164 void *reserved2;
165 } jmmVMGlobal;
167 typedef struct {
168 const char* name;
169 char type;
170 const char* description;
171 } jmmExtAttributeInfo;
173 /* Caller has to set the following fields before calling GetLastGCStat
174 * o usage_before_gc - array of MemoryUsage objects
175 * o usage_after_gc - array of MemoryUsage objects
176 * o gc_ext_attribute_values_size - size of gc_ext_atttribute_values array
177 * o gc_ext_attribtue_values - array of jvalues
178 */
179 typedef struct {
180 jlong gc_index; /* Index of the collections */
181 jlong start_time; /* Start time of the GC */
182 jlong end_time; /* End time of the GC */
183 jobjectArray usage_before_gc; /* Memory usage array before GC */
184 jobjectArray usage_after_gc; /* Memory usage array after GC */
185 jint gc_ext_attribute_values_size; /* set by the caller of GetGCStat */
186 jvalue* gc_ext_attribute_values; /* Array of jvalue for GC extension attributes */
187 jint num_gc_ext_attributes; /* number of GC extension attribute values s are filled */
188 /* -1 indicates gc_ext_attribute_values is not big enough */
189 } jmmGCStat;
191 typedef struct jmmInterface_1_ {
192 void* reserved1;
193 void* reserved2;
195 jint (JNICALL *GetVersion) (JNIEnv *env);
197 jint (JNICALL *GetOptionalSupport) (JNIEnv *env,
198 jmmOptionalSupport* support_ptr);
200 /* This is used by JDK 6 and earlier.
201 * For JDK 7 and after, use GetInputArgumentArray.
202 */
203 jobject (JNICALL *GetInputArguments) (JNIEnv *env);
205 jint (JNICALL *GetThreadInfo) (JNIEnv *env,
206 jlongArray ids,
207 jint maxDepth,
208 jobjectArray infoArray);
209 jobjectArray (JNICALL *GetInputArgumentArray) (JNIEnv *env);
211 jobjectArray (JNICALL *GetMemoryPools) (JNIEnv* env, jobject mgr);
213 jobjectArray (JNICALL *GetMemoryManagers) (JNIEnv* env, jobject pool);
215 jobject (JNICALL *GetMemoryPoolUsage) (JNIEnv* env, jobject pool);
216 jobject (JNICALL *GetPeakMemoryPoolUsage) (JNIEnv* env, jobject pool);
218 void (JNICALL *GetThreadAllocatedMemory)
219 (JNIEnv *env,
220 jlongArray ids,
221 jlongArray sizeArray);
223 jobject (JNICALL *GetMemoryUsage) (JNIEnv* env, jboolean heap);
225 jlong (JNICALL *GetLongAttribute) (JNIEnv *env, jobject obj, jmmLongAttribute att);
226 jboolean (JNICALL *GetBoolAttribute) (JNIEnv *env, jmmBoolAttribute att);
227 jboolean (JNICALL *SetBoolAttribute) (JNIEnv *env, jmmBoolAttribute att, jboolean flag);
229 jint (JNICALL *GetLongAttributes) (JNIEnv *env,
230 jobject obj,
231 jmmLongAttribute* atts,
232 jint count,
233 jlong* result);
235 jobjectArray (JNICALL *FindCircularBlockedThreads) (JNIEnv *env);
237 // Not used in JDK 6 or JDK 7
238 jlong (JNICALL *GetThreadCpuTime) (JNIEnv *env, jlong thread_id);
240 jobjectArray (JNICALL *GetVMGlobalNames) (JNIEnv *env);
241 jint (JNICALL *GetVMGlobals) (JNIEnv *env,
242 jobjectArray names,
243 jmmVMGlobal *globals,
244 jint count);
246 jint (JNICALL *GetInternalThreadTimes) (JNIEnv *env,
247 jobjectArray names,
248 jlongArray times);
250 jboolean (JNICALL *ResetStatistic) (JNIEnv *env,
251 jvalue obj,
252 jmmStatisticType type);
254 void (JNICALL *SetPoolSensor) (JNIEnv *env,
255 jobject pool,
256 jmmThresholdType type,
257 jobject sensor);
259 jlong (JNICALL *SetPoolThreshold) (JNIEnv *env,
260 jobject pool,
261 jmmThresholdType type,
262 jlong threshold);
263 jobject (JNICALL *GetPoolCollectionUsage) (JNIEnv* env, jobject pool);
265 jint (JNICALL *GetGCExtAttributeInfo) (JNIEnv *env,
266 jobject mgr,
267 jmmExtAttributeInfo *ext_info,
268 jint count);
269 void (JNICALL *GetLastGCStat) (JNIEnv *env,
270 jobject mgr,
271 jmmGCStat *gc_stat);
273 jlong (JNICALL *GetThreadCpuTimeWithKind)
274 (JNIEnv *env,
275 jlong thread_id,
276 jboolean user_sys_cpu_time);
277 void (JNICALL *GetThreadCpuTimesWithKind)
278 (JNIEnv *env,
279 jlongArray ids,
280 jlongArray timeArray,
281 jboolean user_sys_cpu_time);
283 jint (JNICALL *DumpHeap0) (JNIEnv *env,
284 jstring outputfile,
285 jboolean live);
286 jobjectArray (JNICALL *FindDeadlocks) (JNIEnv *env,
287 jboolean object_monitors_only);
288 void (JNICALL *SetVMGlobal) (JNIEnv *env,
289 jstring flag_name,
290 jvalue new_value);
291 void* reserved6;
292 jobjectArray (JNICALL *DumpThreads) (JNIEnv *env,
293 jlongArray ids,
294 jboolean lockedMonitors,
295 jboolean lockedSynchronizers);
296 } JmmInterface;
298 #ifdef __cplusplus
299 } /* extern "C" */
300 #endif /* __cplusplus */
302 #endif /* !_JAVA_JMM_H_ */
