--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/include/jmm.h Mon Dec 04 23:55:52 2017 +0100
@@ -0,0 +1,345 @@
+/*
+ * Copyright (c) 2003, 2017, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation. Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+#ifndef _JAVA_JMM_H_
+#define _JAVA_JMM_H_
+
+/*
+ * This is a private interface used by JDK for JVM monitoring
+ * and management.
+ *
+ * Bump the version number when either of the following happens:
+ *
+ * 1. There is a change in functions in JmmInterface.
+ *
+ * 2. There is a change in the contract between VM and Java classes.
+ */
+
+#include "jni.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+enum {
+ JMM_VERSION_1 = 0x20010000,
+ JMM_VERSION_1_0 = 0x20010000,
+ JMM_VERSION_1_1 = 0x20010100, // JDK 6
+ JMM_VERSION_1_2 = 0x20010200, // JDK 7
+ JMM_VERSION_1_2_1 = 0x20010201, // JDK 7 GA
+ JMM_VERSION_1_2_2 = 0x20010202,
+ JMM_VERSION_2 = 0x20020000, // JDK 10
+ JMM_VERSION = 0x20020000
+};
+
+typedef struct {
+ unsigned int isLowMemoryDetectionSupported : 1;
+ unsigned int isCompilationTimeMonitoringSupported : 1;
+ unsigned int isThreadContentionMonitoringSupported : 1;
+ unsigned int isCurrentThreadCpuTimeSupported : 1;
+ unsigned int isOtherThreadCpuTimeSupported : 1;
+ unsigned int isObjectMonitorUsageSupported : 1;
+ unsigned int isSynchronizerUsageSupported : 1;
+ unsigned int isThreadAllocatedMemorySupported : 1;
+ unsigned int isRemoteDiagnosticCommandsSupported : 1;
+ unsigned int : 22;
+} jmmOptionalSupport;
+
+typedef enum {
+ JMM_CLASS_LOADED_COUNT = 1, /* Total number of loaded classes */
+ JMM_CLASS_UNLOADED_COUNT = 2, /* Total number of unloaded classes */
+ JMM_THREAD_TOTAL_COUNT = 3, /* Total number of threads that have been started */
+ JMM_THREAD_LIVE_COUNT = 4, /* Current number of live threads */
+ JMM_THREAD_PEAK_COUNT = 5, /* Peak number of live threads */
+ JMM_THREAD_DAEMON_COUNT = 6, /* Current number of daemon threads */
+ JMM_JVM_INIT_DONE_TIME_MS = 7, /* Time when the JVM finished initialization */
+ JMM_COMPILE_TOTAL_TIME_MS = 8, /* Total accumulated time spent in compilation */
+ JMM_GC_TIME_MS = 9, /* Total accumulated time spent in collection */
+ JMM_GC_COUNT = 10, /* Total number of collections */
+ JMM_JVM_UPTIME_MS = 11, /* The JVM uptime in milliseconds */
+
+ JMM_INTERNAL_ATTRIBUTE_INDEX = 100,
+ JMM_CLASS_LOADED_BYTES = 101, /* Number of bytes loaded instance classes */
+ JMM_CLASS_UNLOADED_BYTES = 102, /* Number of bytes unloaded instance classes */
+ JMM_TOTAL_CLASSLOAD_TIME_MS = 103, /* Accumulated VM class loader time (TraceClassLoadingTime) */
+ JMM_VM_GLOBAL_COUNT = 104, /* Number of VM internal flags */
+ JMM_SAFEPOINT_COUNT = 105, /* Total number of safepoints */
+ JMM_TOTAL_SAFEPOINTSYNC_TIME_MS = 106, /* Accumulated time spent getting to safepoints */
+ JMM_TOTAL_STOPPED_TIME_MS = 107, /* Accumulated time spent at safepoints */
+ JMM_TOTAL_APP_TIME_MS = 108, /* Accumulated time spent in Java application */
+ JMM_VM_THREAD_COUNT = 109, /* Current number of VM internal threads */
+ JMM_CLASS_INIT_TOTAL_COUNT = 110, /* Number of classes for which initializers were run */
+ JMM_CLASS_INIT_TOTAL_TIME_MS = 111, /* Accumulated time spent in class initializers */
+ JMM_METHOD_DATA_SIZE_BYTES = 112, /* Size of method data in memory */
+ JMM_CLASS_VERIFY_TOTAL_TIME_MS = 113, /* Accumulated time spent in class verifier */
+ JMM_SHARED_CLASS_LOADED_COUNT = 114, /* Number of shared classes loaded */
+ JMM_SHARED_CLASS_UNLOADED_COUNT = 115, /* Number of shared classes unloaded */
+ JMM_SHARED_CLASS_LOADED_BYTES = 116, /* Number of bytes loaded shared classes */
+ JMM_SHARED_CLASS_UNLOADED_BYTES = 117, /* Number of bytes unloaded shared classes */
+
+ JMM_OS_ATTRIBUTE_INDEX = 200,
+ JMM_OS_PROCESS_ID = 201, /* Process id of the JVM */
+ JMM_OS_MEM_TOTAL_PHYSICAL_BYTES = 202, /* Physical memory size */
+
+ JMM_GC_EXT_ATTRIBUTE_INFO_SIZE = 401 /* the size of the GC specific attributes for a given GC memory manager */
+} jmmLongAttribute;
+
+typedef enum {
+ JMM_VERBOSE_GC = 21,
+ JMM_VERBOSE_CLASS = 22,
+ JMM_THREAD_CONTENTION_MONITORING = 23,
+ JMM_THREAD_CPU_TIME = 24,
+ JMM_THREAD_ALLOCATED_MEMORY = 25
+} jmmBoolAttribute;
+
+
+enum {
+ JMM_THREAD_STATE_FLAG_SUSPENDED = 0x00100000,
+ JMM_THREAD_STATE_FLAG_NATIVE = 0x00400000
+};
+
+#define JMM_THREAD_STATE_FLAG_MASK 0xFFF00000
+
+typedef enum {
+ JMM_STAT_PEAK_THREAD_COUNT = 801,
+ JMM_STAT_THREAD_CONTENTION_COUNT = 802,
+ JMM_STAT_THREAD_CONTENTION_TIME = 803,
+ JMM_STAT_THREAD_CONTENTION_STAT = 804,
+ JMM_STAT_PEAK_POOL_USAGE = 805,
+ JMM_STAT_GC_STAT = 806
+} jmmStatisticType;
+
+typedef enum {
+ JMM_USAGE_THRESHOLD_HIGH = 901,
+ JMM_USAGE_THRESHOLD_LOW = 902,
+ JMM_COLLECTION_USAGE_THRESHOLD_HIGH = 903,
+ JMM_COLLECTION_USAGE_THRESHOLD_LOW = 904
+} jmmThresholdType;
+
+/* Should match what is allowed in globals.hpp */
+typedef enum {
+ JMM_VMGLOBAL_TYPE_UNKNOWN = 0,
+ JMM_VMGLOBAL_TYPE_JBOOLEAN = 1,
+ JMM_VMGLOBAL_TYPE_JSTRING = 2,
+ JMM_VMGLOBAL_TYPE_JLONG = 3,
+ JMM_VMGLOBAL_TYPE_JDOUBLE = 4
+} jmmVMGlobalType;
+
+typedef enum {
+ JMM_VMGLOBAL_ORIGIN_DEFAULT = 1, /* Default value */
+ JMM_VMGLOBAL_ORIGIN_COMMAND_LINE = 2, /* Set at command line (or JNI invocation) */
+ JMM_VMGLOBAL_ORIGIN_MANAGEMENT = 3, /* Set via management interface */
+ JMM_VMGLOBAL_ORIGIN_ENVIRON_VAR = 4, /* Set via environment variables */
+ JMM_VMGLOBAL_ORIGIN_CONFIG_FILE = 5, /* Set via config file (such as .hotspotrc) */
+ JMM_VMGLOBAL_ORIGIN_ERGONOMIC = 6, /* Set via ergonomic */
+ JMM_VMGLOBAL_ORIGIN_ATTACH_ON_DEMAND = 7, /* Set via attach */
+ JMM_VMGLOBAL_ORIGIN_OTHER = 99 /* Set via some other mechanism */
+} jmmVMGlobalOrigin;
+
+typedef struct {
+ jstring name;
+ jvalue value;
+ jmmVMGlobalType type; /* Data type */
+ jmmVMGlobalOrigin origin; /* Default or non-default value */
+ unsigned int writeable : 1; /* dynamically writeable */
+ unsigned int external : 1; /* external supported interface */
+ unsigned int reserved : 30;
+ void *reserved1;
+ void *reserved2;
+} jmmVMGlobal;
+
+typedef struct {
+ const char* name;
+ char type;
+ const char* description;
+} jmmExtAttributeInfo;
+
+/* Caller has to set the following fields before calling GetLastGCStat
+ * o usage_before_gc - array of MemoryUsage objects
+ * o usage_after_gc - array of MemoryUsage objects
+ * o gc_ext_attribute_values_size - size of gc_ext_atttribute_values array
+ * o gc_ext_attribtue_values - array of jvalues
+ */
+typedef struct {
+ jlong gc_index; /* Index of the collections */
+ jlong start_time; /* Start time of the GC */
+ jlong end_time; /* End time of the GC */
+ jobjectArray usage_before_gc; /* Memory usage array before GC */
+ jobjectArray usage_after_gc; /* Memory usage array after GC */
+ jint gc_ext_attribute_values_size; /* set by the caller of GetGCStat */
+ jvalue* gc_ext_attribute_values; /* Array of jvalue for GC extension attributes */
+ jint num_gc_ext_attributes; /* number of GC extension attribute values s are filled */
+ /* -1 indicates gc_ext_attribute_values is not big enough */
+} jmmGCStat;
+
+typedef struct {
+ const char* name; /* Name of the diagnostic command */
+ const char* description; /* Short description */
+ const char* impact; /* Impact on the JVM */
+ const char* permission_class; /* Class name of the required permission if any */
+ const char* permission_name; /* Permission name of the required permission if any */
+ const char* permission_action; /* Action name of the required permission if any*/
+ int num_arguments; /* Number of supported options or arguments */
+ jboolean enabled; /* True if the diagnostic command can be invoked, false otherwise*/
+} dcmdInfo;
+
+typedef struct {
+ const char* name; /* Option/Argument name*/
+ const char* description; /* Short description */
+ const char* type; /* Type: STRING, BOOLEAN, etc. */
+ const char* default_string; /* Default value in a parsable string */
+ jboolean mandatory; /* True if the option/argument is mandatory */
+ jboolean option; /* True if it is an option, false if it is an argument */
+ /* (see diagnosticFramework.hpp for option/argument definitions) */
+ jboolean multiple; /* True is the option can be specified several time */
+ int position; /* Expected position for this argument (this field is */
+ /* meaningless for options) */
+} dcmdArgInfo;
+
+typedef struct jmmInterface_1_ {
+ void* reserved1;
+ void* reserved2;
+
+ jint (JNICALL *GetVersion) (JNIEnv *env);
+
+ jint (JNICALL *GetOptionalSupport) (JNIEnv *env,
+ jmmOptionalSupport* support_ptr);
+
+ jint (JNICALL *GetThreadInfo) (JNIEnv *env,
+ jlongArray ids,
+ jint maxDepth,
+ jobjectArray infoArray);
+
+ jobjectArray (JNICALL *GetMemoryPools) (JNIEnv* env, jobject mgr);
+
+ jobjectArray (JNICALL *GetMemoryManagers) (JNIEnv* env, jobject pool);
+
+ jobject (JNICALL *GetMemoryPoolUsage) (JNIEnv* env, jobject pool);
+ jobject (JNICALL *GetPeakMemoryPoolUsage) (JNIEnv* env, jobject pool);
+
+ void (JNICALL *GetThreadAllocatedMemory)
+ (JNIEnv *env,
+ jlongArray ids,
+ jlongArray sizeArray);
+
+ jobject (JNICALL *GetMemoryUsage) (JNIEnv* env, jboolean heap);
+
+ jlong (JNICALL *GetLongAttribute) (JNIEnv *env, jobject obj, jmmLongAttribute att);
+ jboolean (JNICALL *GetBoolAttribute) (JNIEnv *env, jmmBoolAttribute att);
+ jboolean (JNICALL *SetBoolAttribute) (JNIEnv *env, jmmBoolAttribute att, jboolean flag);
+
+ jint (JNICALL *GetLongAttributes) (JNIEnv *env,
+ jobject obj,
+ jmmLongAttribute* atts,
+ jint count,
+ jlong* result);
+
+ jobjectArray (JNICALL *FindCircularBlockedThreads) (JNIEnv *env);
+
+ // Not used in JDK 6 or JDK 7
+ jlong (JNICALL *GetThreadCpuTime) (JNIEnv *env, jlong thread_id);
+
+ jobjectArray (JNICALL *GetVMGlobalNames) (JNIEnv *env);
+ jint (JNICALL *GetVMGlobals) (JNIEnv *env,
+ jobjectArray names,
+ jmmVMGlobal *globals,
+ jint count);
+
+ jint (JNICALL *GetInternalThreadTimes) (JNIEnv *env,
+ jobjectArray names,
+ jlongArray times);
+
+ jboolean (JNICALL *ResetStatistic) (JNIEnv *env,
+ jvalue obj,
+ jmmStatisticType type);
+
+ void (JNICALL *SetPoolSensor) (JNIEnv *env,
+ jobject pool,
+ jmmThresholdType type,
+ jobject sensor);
+
+ jlong (JNICALL *SetPoolThreshold) (JNIEnv *env,
+ jobject pool,
+ jmmThresholdType type,
+ jlong threshold);
+ jobject (JNICALL *GetPoolCollectionUsage) (JNIEnv* env, jobject pool);
+
+ jint (JNICALL *GetGCExtAttributeInfo) (JNIEnv *env,
+ jobject mgr,
+ jmmExtAttributeInfo *ext_info,
+ jint count);
+ void (JNICALL *GetLastGCStat) (JNIEnv *env,
+ jobject mgr,
+ jmmGCStat *gc_stat);
+
+ jlong (JNICALL *GetThreadCpuTimeWithKind)
+ (JNIEnv *env,
+ jlong thread_id,
+ jboolean user_sys_cpu_time);
+ void (JNICALL *GetThreadCpuTimesWithKind)
+ (JNIEnv *env,
+ jlongArray ids,
+ jlongArray timeArray,
+ jboolean user_sys_cpu_time);
+
+ jint (JNICALL *DumpHeap0) (JNIEnv *env,
+ jstring outputfile,
+ jboolean live);
+ jobjectArray (JNICALL *FindDeadlocks) (JNIEnv *env,
+ jboolean object_monitors_only);
+ void (JNICALL *SetVMGlobal) (JNIEnv *env,
+ jstring flag_name,
+ jvalue new_value);
+ void* reserved6;
+ jobjectArray (JNICALL *DumpThreads) (JNIEnv *env,
+ jlongArray ids,
+ jboolean lockedMonitors,
+ jboolean lockedSynchronizers,
+ jint maxDepth);
+ void (JNICALL *SetGCNotificationEnabled) (JNIEnv *env,
+ jobject mgr,
+ jboolean enabled);
+ jobjectArray (JNICALL *GetDiagnosticCommands) (JNIEnv *env);
+ void (JNICALL *GetDiagnosticCommandInfo)
+ (JNIEnv *env,
+ jobjectArray cmds,
+ dcmdInfo *infoArray);
+ void (JNICALL *GetDiagnosticCommandArgumentsInfo)
+ (JNIEnv *env,
+ jstring commandName,
+ dcmdArgInfo *infoArray);
+ jstring (JNICALL *ExecuteDiagnosticCommand)
+ (JNIEnv *env,
+ jstring command);
+ void (JNICALL *SetDiagnosticFrameworkNotificationEnabled)
+ (JNIEnv *env,
+ jboolean enabled);
+} JmmInterface;
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif /* __cplusplus */
+
+#endif /* !_JAVA_JMM_H_ */