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 */
39
40 #include "jni.h"
41
42 #ifdef __cplusplus
43 extern "C" {
44 #endif
45
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 = 0x20010201
52 };
53
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;
66
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 */
171 } jmmExtAttributeInfo;
172
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;
190
191 typedef struct jmmInterface_1_ {
192 void* reserved1;
193 void* reserved2;
194
195 jint (JNICALL *GetVersion) (JNIEnv *env);
196
197 jint (JNICALL *GetOptionalSupport) (JNIEnv *env,
198 jmmOptionalSupport* support_ptr);
199
200 /* This is used by JDK 6 and earlier.
201 * For JDK 7 and after, use GetInputArgumentArray.
202 */
203 jobject (JNICALL *GetInputArguments) (JNIEnv *env);
204
205 jint (JNICALL *GetThreadInfo) (JNIEnv *env,
206 jlongArray ids,
207 jint maxDepth,
208 jobjectArray infoArray);
209 jobjectArray (JNICALL *GetInputArgumentArray) (JNIEnv *env);
210
279 jlongArray ids,
280 jlongArray timeArray,
281 jboolean user_sys_cpu_time);
282
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 void (JNICALL *SetGCNotificationEnabled) (JNIEnv *env,
297 jobject mgr,
298 jboolean enabled);
299 } JmmInterface;
300
301 #ifdef __cplusplus
302 } /* extern "C" */
303 #endif /* __cplusplus */
304
305 #endif /* !_JAVA_JMM_H_ */
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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 */
39
40 #include "jni.h"
41
42 #ifdef __cplusplus
43 extern "C" {
44 #endif
45
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 = 0x20010202
53 };
54
55 typedef struct {
56 unsigned int isLowMemoryDetectionSupported : 1;
57 unsigned int isCompilationTimeMonitoringSupported : 1;
58 unsigned int isThreadContentionMonitoringSupported : 1;
59 unsigned int isCurrentThreadCpuTimeSupported : 1;
60 unsigned int isOtherThreadCpuTimeSupported : 1;
61 unsigned int isBootClassPathSupported : 1;
62 unsigned int isObjectMonitorUsageSupported : 1;
63 unsigned int isSynchronizerUsageSupported : 1;
64 unsigned int isThreadAllocatedMemorySupported : 1;
65 unsigned int : 23;
66 } jmmOptionalSupport;
67
68 typedef enum {
69 JMM_CLASS_LOADED_COUNT = 1, /* Total number of loaded classes */
70 JMM_CLASS_UNLOADED_COUNT = 2, /* Total number of unloaded classes */
71 JMM_THREAD_TOTAL_COUNT = 3, /* Total number of threads that have been started */
72 JMM_THREAD_LIVE_COUNT = 4, /* Current number of live threads */
172 } jmmExtAttributeInfo;
173
174 /* Caller has to set the following fields before calling GetLastGCStat
175 * o usage_before_gc - array of MemoryUsage objects
176 * o usage_after_gc - array of MemoryUsage objects
177 * o gc_ext_attribute_values_size - size of gc_ext_atttribute_values array
178 * o gc_ext_attribtue_values - array of jvalues
179 */
180 typedef struct {
181 jlong gc_index; /* Index of the collections */
182 jlong start_time; /* Start time of the GC */
183 jlong end_time; /* End time of the GC */
184 jobjectArray usage_before_gc; /* Memory usage array before GC */
185 jobjectArray usage_after_gc; /* Memory usage array after GC */
186 jint gc_ext_attribute_values_size; /* set by the caller of GetGCStat */
187 jvalue* gc_ext_attribute_values; /* Array of jvalue for GC extension attributes */
188 jint num_gc_ext_attributes; /* number of GC extension attribute values s are filled */
189 /* -1 indicates gc_ext_attribute_values is not big enough */
190 } jmmGCStat;
191
192 typedef struct {
193 const char *name;
194 const char *description;
195 const char *impact;
196 int num_arguments;
197 jboolean enabled;
198 } dcmdInfo;
199
200 typedef struct {
201 const char *name;
202 const char *description;
203 const char *type;
204 const char *default_string;
205 jboolean mandatory;
206 jboolean option;
207 int position;
208 } dcmdArgInfo;
209
210 typedef struct jmmInterface_1_ {
211 void* reserved1;
212 void* reserved2;
213
214 jint (JNICALL *GetVersion) (JNIEnv *env);
215
216 jint (JNICALL *GetOptionalSupport) (JNIEnv *env,
217 jmmOptionalSupport* support_ptr);
218
219 /* This is used by JDK 6 and earlier.
220 * For JDK 7 and after, use GetInputArgumentArray.
221 */
222 jobject (JNICALL *GetInputArguments) (JNIEnv *env);
223
224 jint (JNICALL *GetThreadInfo) (JNIEnv *env,
225 jlongArray ids,
226 jint maxDepth,
227 jobjectArray infoArray);
228 jobjectArray (JNICALL *GetInputArgumentArray) (JNIEnv *env);
229
298 jlongArray ids,
299 jlongArray timeArray,
300 jboolean user_sys_cpu_time);
301
302 jint (JNICALL *DumpHeap0) (JNIEnv *env,
303 jstring outputfile,
304 jboolean live);
305 jobjectArray (JNICALL *FindDeadlocks) (JNIEnv *env,
306 jboolean object_monitors_only);
307 void (JNICALL *SetVMGlobal) (JNIEnv *env,
308 jstring flag_name,
309 jvalue new_value);
310 void* reserved6;
311 jobjectArray (JNICALL *DumpThreads) (JNIEnv *env,
312 jlongArray ids,
313 jboolean lockedMonitors,
314 jboolean lockedSynchronizers);
315 void (JNICALL *SetGCNotificationEnabled) (JNIEnv *env,
316 jobject mgr,
317 jboolean enabled);
318 jobjectArray (JNICALL *GetDiagnosticCommands) (JNIEnv *env);
319 void (JNICALL *GetDiagnosticCommandInfo) (JNIEnv *env,
320 jobjectArray cmds,
321 dcmdInfo *infoArray);
322 void (JNICALL *GetDiagnosticCommandArgumentsInfo) (JNIEnv *env,
323 jstring commandName,
324 dcmdArgInfo *infoArray);
325 jstring (JNICALL *ExecuteDiagnosticCommand) (JNIEnv *env,
326 jstring command);
327 } JmmInterface;
328
329 #ifdef __cplusplus
330 } /* extern "C" */
331 #endif /* __cplusplus */
332
333 #endif /* !_JAVA_JMM_H_ */
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