288 lines
13 KiB
C
288 lines
13 KiB
C
/*
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* Copyright 2003-2006 Sun Microsystems, Inc. All Rights Reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Sun designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Sun in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*/
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#ifndef _JAVA_JMM_H_
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#define _JAVA_JMM_H_
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/*
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* This is a private interface used by JDK for JVM monitoring
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* and management.
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*
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* Bump the version number when either of the following happens:
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*
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* 1. There is a change in functions in JmmInterface.
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*
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* 2. There is a change in the contract between VM and Java classes.
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*/
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#include "jni.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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enum {
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JMM_VERSION_1 = 0x20010000,
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JMM_VERSION_1_0 = 0x20010000,
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JMM_VERSION_1_1 = 0x20010100, // JDK 6
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JMM_VERSION_1_2 = 0x20010200, // JDK 7
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JMM_VERSION = 0x20010200
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};
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typedef struct {
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unsigned int isLowMemoryDetectionSupported : 1;
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unsigned int isCompilationTimeMonitoringSupported : 1;
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unsigned int isThreadContentionMonitoringSupported : 1;
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unsigned int isCurrentThreadCpuTimeSupported : 1;
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unsigned int isOtherThreadCpuTimeSupported : 1;
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unsigned int isBootClassPathSupported : 1;
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unsigned int isObjectMonitorUsageSupported : 1;
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unsigned int isSynchronizerUsageSupported : 1;
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unsigned int : 24;
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} jmmOptionalSupport;
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typedef enum {
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JMM_CLASS_LOADED_COUNT = 1, /* Total number of loaded classes */
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JMM_CLASS_UNLOADED_COUNT = 2, /* Total number of unloaded classes */
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JMM_THREAD_TOTAL_COUNT = 3, /* Total number of threads that have been started */
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JMM_THREAD_LIVE_COUNT = 4, /* Current number of live threads */
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JMM_THREAD_PEAK_COUNT = 5, /* Peak number of live threads */
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JMM_THREAD_DAEMON_COUNT = 6, /* Current number of daemon threads */
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JMM_JVM_INIT_DONE_TIME_MS = 7, /* Time when the JVM finished initialization */
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JMM_COMPILE_TOTAL_TIME_MS = 8, /* Total accumulated time spent in compilation */
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JMM_GC_TIME_MS = 9, /* Total accumulated time spent in collection */
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JMM_GC_COUNT = 10, /* Total number of collections */
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JMM_INTERNAL_ATTRIBUTE_INDEX = 100,
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JMM_CLASS_LOADED_BYTES = 101, /* Number of bytes loaded instance classes */
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JMM_CLASS_UNLOADED_BYTES = 102, /* Number of bytes unloaded instance classes */
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JMM_TOTAL_CLASSLOAD_TIME_MS = 103, /* Accumulated VM class loader time (TraceClassLoadingTime) */
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JMM_VM_GLOBAL_COUNT = 104, /* Number of VM internal flags */
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JMM_SAFEPOINT_COUNT = 105, /* Total number of safepoints */
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JMM_TOTAL_SAFEPOINTSYNC_TIME_MS = 106, /* Accumulated time spent getting to safepoints */
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JMM_TOTAL_STOPPED_TIME_MS = 107, /* Accumulated time spent at safepoints */
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JMM_TOTAL_APP_TIME_MS = 108, /* Accumulated time spent in Java application */
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JMM_VM_THREAD_COUNT = 109, /* Current number of VM internal threads */
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JMM_CLASS_INIT_TOTAL_COUNT = 110, /* Number of classes for which initializers were run */
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JMM_CLASS_INIT_TOTAL_TIME_MS = 111, /* Accumulated time spent in class initializers */
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JMM_METHOD_DATA_SIZE_BYTES = 112, /* Size of method data in memory */
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JMM_CLASS_VERIFY_TOTAL_TIME_MS = 113, /* Accumulated time spent in class verifier */
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JMM_SHARED_CLASS_LOADED_COUNT = 114, /* Number of shared classes loaded */
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JMM_SHARED_CLASS_UNLOADED_COUNT = 115, /* Number of shared classes unloaded */
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JMM_SHARED_CLASS_LOADED_BYTES = 116, /* Number of bytes loaded shared classes */
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JMM_SHARED_CLASS_UNLOADED_BYTES = 117, /* Number of bytes unloaded shared classes */
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JMM_OS_ATTRIBUTE_INDEX = 200,
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JMM_OS_PROCESS_ID = 201, /* Process id of the JVM */
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JMM_OS_MEM_TOTAL_PHYSICAL_BYTES = 202, /* Physical memory size */
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JMM_GC_EXT_ATTRIBUTE_INFO_SIZE = 401 /* the size of the GC specific attributes for a given GC memory manager */
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} jmmLongAttribute;
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typedef enum {
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JMM_VERBOSE_GC = 21,
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JMM_VERBOSE_CLASS = 22,
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JMM_THREAD_CONTENTION_MONITORING = 23,
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JMM_THREAD_CPU_TIME = 24
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} jmmBoolAttribute;
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enum {
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JMM_THREAD_STATE_FLAG_SUSPENDED = 0x00100000,
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JMM_THREAD_STATE_FLAG_NATIVE = 0x00400000
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};
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#define JMM_THREAD_STATE_FLAG_MASK 0xFFF00000
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typedef enum {
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JMM_STAT_PEAK_THREAD_COUNT = 801,
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JMM_STAT_THREAD_CONTENTION_COUNT = 802,
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JMM_STAT_THREAD_CONTENTION_TIME = 803,
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JMM_STAT_THREAD_CONTENTION_STAT = 804,
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JMM_STAT_PEAK_POOL_USAGE = 805,
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JMM_STAT_GC_STAT = 806
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} jmmStatisticType;
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typedef enum {
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JMM_USAGE_THRESHOLD_HIGH = 901,
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JMM_USAGE_THRESHOLD_LOW = 902,
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JMM_COLLECTION_USAGE_THRESHOLD_HIGH = 903,
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JMM_COLLECTION_USAGE_THRESHOLD_LOW = 904
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} jmmThresholdType;
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/* Should match what is allowed in globals.hpp */
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typedef enum {
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JMM_VMGLOBAL_TYPE_UNKNOWN = 0,
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JMM_VMGLOBAL_TYPE_JBOOLEAN = 1,
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JMM_VMGLOBAL_TYPE_JSTRING = 2,
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JMM_VMGLOBAL_TYPE_JLONG = 3
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} jmmVMGlobalType;
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typedef enum {
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JMM_VMGLOBAL_ORIGIN_DEFAULT = 1, /* Default value */
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JMM_VMGLOBAL_ORIGIN_COMMAND_LINE = 2, /* Set at command line (or JNI invocation) */
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JMM_VMGLOBAL_ORIGIN_MANAGEMENT = 3, /* Set via management interface */
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JMM_VMGLOBAL_ORIGIN_ENVIRON_VAR = 4, /* Set via environment variables */
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JMM_VMGLOBAL_ORIGIN_CONFIG_FILE = 5, /* Set via config file (such as .hotspotrc) */
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JMM_VMGLOBAL_ORIGIN_ERGONOMIC = 6, /* Set via ergonomic */
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JMM_VMGLOBAL_ORIGIN_OTHER = 99 /* Set via some other mechanism */
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} jmmVMGlobalOrigin;
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typedef struct {
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jstring name;
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jvalue value;
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jmmVMGlobalType type; /* Data type */
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jmmVMGlobalOrigin origin; /* Default or non-default value */
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unsigned int writeable : 1; /* dynamically writeable */
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unsigned int external : 1; /* external supported interface */
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unsigned int reserved : 30;
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void *reserved1;
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void *reserved2;
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} jmmVMGlobal;
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typedef struct {
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const char* name;
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char type;
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const char* description;
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} jmmExtAttributeInfo;
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/* Caller has to set the following fields before calling GetLastGCStat
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* o usage_before_gc - array of MemoryUsage objects
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* o usage_after_gc - array of MemoryUsage objects
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* o gc_ext_attribute_values_size - size of gc_ext_atttribute_values array
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* o gc_ext_attribtue_values - array of jvalues
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*/
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typedef struct {
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jlong gc_index; /* Index of the collections */
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jlong start_time; /* Start time of the GC */
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jlong end_time; /* End time of the GC */
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jobjectArray usage_before_gc; /* Memory usage array before GC */
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jobjectArray usage_after_gc; /* Memory usage array after GC */
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jint gc_ext_attribute_values_size; /* set by the caller of GetGCStat */
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jvalue* gc_ext_attribute_values; /* Array of jvalue for GC extension attributes */
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jint num_gc_ext_attributes; /* number of GC extension attribute values s are filled */
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/* -1 indicates gc_ext_attribute_values is not big enough */
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} jmmGCStat;
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typedef struct jmmInterface_1_ {
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void* reserved1;
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void* reserved2;
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jint (JNICALL *GetVersion) (JNIEnv *env);
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jint (JNICALL *GetOptionalSupport) (JNIEnv *env,
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jmmOptionalSupport* support_ptr);
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/* This is used by JDK 6 and earlier.
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* For JDK 7 and after, use GetInputArgumentArray.
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*/
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jobject (JNICALL *GetInputArguments) (JNIEnv *env);
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jint (JNICALL *GetThreadInfo) (JNIEnv *env,
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jlongArray ids,
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jint maxDepth,
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jobjectArray infoArray);
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jobjectArray (JNICALL *GetInputArgumentArray) (JNIEnv *env);
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jobjectArray (JNICALL *GetMemoryPools) (JNIEnv* env, jobject mgr);
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jobjectArray (JNICALL *GetMemoryManagers) (JNIEnv* env, jobject pool);
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jobject (JNICALL *GetMemoryPoolUsage) (JNIEnv* env, jobject pool);
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jobject (JNICALL *GetPeakMemoryPoolUsage) (JNIEnv* env, jobject pool);
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void* reserved4;
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jobject (JNICALL *GetMemoryUsage) (JNIEnv* env, jboolean heap);
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jlong (JNICALL *GetLongAttribute) (JNIEnv *env, jobject obj, jmmLongAttribute att);
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jboolean (JNICALL *GetBoolAttribute) (JNIEnv *env, jmmBoolAttribute att);
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jboolean (JNICALL *SetBoolAttribute) (JNIEnv *env, jmmBoolAttribute att, jboolean flag);
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jint (JNICALL *GetLongAttributes) (JNIEnv *env,
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jobject obj,
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jmmLongAttribute* atts,
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jint count,
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jlong* result);
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jobjectArray (JNICALL *FindCircularBlockedThreads) (JNIEnv *env);
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jlong (JNICALL *GetThreadCpuTime) (JNIEnv *env, jlong thread_id);
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jobjectArray (JNICALL *GetVMGlobalNames) (JNIEnv *env);
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jint (JNICALL *GetVMGlobals) (JNIEnv *env,
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jobjectArray names,
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jmmVMGlobal *globals,
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jint count);
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jint (JNICALL *GetInternalThreadTimes) (JNIEnv *env,
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jobjectArray names,
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jlongArray times);
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jboolean (JNICALL *ResetStatistic) (JNIEnv *env,
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jvalue obj,
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jmmStatisticType type);
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void (JNICALL *SetPoolSensor) (JNIEnv *env,
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jobject pool,
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jmmThresholdType type,
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jobject sensor);
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jlong (JNICALL *SetPoolThreshold) (JNIEnv *env,
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jobject pool,
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jmmThresholdType type,
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jlong threshold);
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jobject (JNICALL *GetPoolCollectionUsage) (JNIEnv* env, jobject pool);
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jint (JNICALL *GetGCExtAttributeInfo) (JNIEnv *env,
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jobject mgr,
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jmmExtAttributeInfo *ext_info,
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jint count);
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void (JNICALL *GetLastGCStat) (JNIEnv *env,
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jobject mgr,
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jmmGCStat *gc_stat);
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jlong (JNICALL *GetThreadCpuTimeWithKind) (JNIEnv *env,
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jlong thread_id,
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jboolean user_sys_cpu_time);
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void* reserved5;
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jint (JNICALL *DumpHeap0) (JNIEnv *env,
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jstring outputfile,
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jboolean live);
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jobjectArray (JNICALL *FindDeadlocks) (JNIEnv *env, jboolean object_monitors_only);
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void (JNICALL *SetVMGlobal) (JNIEnv *env,
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jstring flag_name,
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jvalue new_value);
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void* reserved6;
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jobjectArray (JNICALL *DumpThreads) (JNIEnv *env,
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jlongArray ids,
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jboolean lockedMonitors,
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jboolean lockedSynchronizers);
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} JmmInterface;
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#ifdef __cplusplus
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} /* extern "C" */
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#endif /* __cplusplus */
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#endif /* !_JAVA_JMM_H_ */
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