/*
* Copyright ( c ) 1997 , 2022 , 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 _JAVASOFT_JVM_H_
#define _JAVASOFT_JVM_H_
#include <sys/stat.h>
#include "jni.h"
#include "jvm_md.h"
#include "jvm_constants.h"
#include "jvm_io.h"
#ifdef __cplusplus
extern "C" {
#endif
/*
* This file contains additional functions exported from the VM .
* These functions are complementary to the standard JNI support .
* There are three parts to this file :
*
* First , this file contains the VM - related functions needed by native
* libraries in the standard Java API . For example , the java . lang . Object
* class needs VM - level functions that wait for and notify monitors .
*
* Second , ( included from jvm_constants . h ) constant definitions
* needed by the byte code verifier and class file format checker .
* These definitions allow the verifier and format checker to be written
* in a VM - independent way .
*
* Third , this file contains various I / O and network operations needed
* by the standard Java I / O and network APIs . A part of these APIs ,
* namely the jio_xxxprintf functions , are included from jvm_io . h .
*/
/*************************************************************************
PART 1 : Functions for Native Libraries
************************************************************************/
/*
* java . lang . Object
*/
JNIEXPORT jint JNICALL
JVM_IHashCode(JNIEnv *env, jobject obj);
JNIEXPORT void JNICALL
JVM_MonitorWait(JNIEnv *env, jobject obj, jlong ms);
JNIEXPORT void JNICALL
JVM_MonitorNotify(JNIEnv *env, jobject obj);
JNIEXPORT void JNICALL
JVM_MonitorNotifyAll(JNIEnv *env, jobject obj);
JNIEXPORT jobject JNICALL
JVM_Clone(JNIEnv *env, jobject obj);
/*
* java . lang . String
*/
JNIEXPORT jstring JNICALL
JVM_InternString(JNIEnv *env, jstring str);
/*
* java . lang . System
*/
JNIEXPORT jlong JNICALL
JVM_CurrentTimeMillis(JNIEnv *env, jclass ignored);
JNIEXPORT jlong JNICALL
JVM_NanoTime(JNIEnv *env, jclass ignored);
JNIEXPORT jlong JNICALL
JVM_GetNanoTimeAdjustment(JNIEnv *env, jclass ignored, jlong offset_secs);
JNIEXPORT void JNICALL
JVM_ArrayCopy(JNIEnv *env, jclass ignored, jobject src, jint src_pos,
jobject dst, jint dst_pos, jint length);
/*
* Return an array of all properties as alternating name and value pairs .
*/
JNIEXPORT jobjectArray JNICALL
JVM_GetProperties(JNIEnv *env);
/*
* java . lang . Runtime
*/
JNIEXPORT void JNICALL
JVM_BeforeHalt();
JNIEXPORT void JNICALL
JVM_Halt(jint code);
JNIEXPORT void JNICALL
JVM_GC(void );
/* Returns the number of real-time milliseconds that have elapsed since the
* least - recently - inspected heap object was last inspected by the garbage
* collector .
*
* For simple stop - the - world collectors this value is just the time
* since the most recent collection . For generational collectors it is the
* time since the oldest generation was most recently collected . Other
* collectors are free to return a pessimistic estimate of the elapsed time , or
* simply the time since the last full collection was performed .
*
* Note that in the presence of reference objects , a given object that is no
* longer strongly reachable may have to be inspected multiple times before it
* can be reclaimed .
*/
JNIEXPORT jlong JNICALL
JVM_MaxObjectInspectionAge(void );
JNIEXPORT jlong JNICALL
JVM_TotalMemory(void );
JNIEXPORT jlong JNICALL
JVM_FreeMemory(void );
JNIEXPORT jlong JNICALL
JVM_MaxMemory(void );
JNIEXPORT jint JNICALL
JVM_ActiveProcessorCount(void );
JNIEXPORT jboolean JNICALL
JVM_IsUseContainerSupport(void );
JNIEXPORT void * JNICALL
JVM_LoadZipLibrary();
JNIEXPORT void * JNICALL
JVM_LoadLibrary(const char *name, jboolean throwException);
JNIEXPORT void JNICALL
JVM_UnloadLibrary(void * handle);
JNIEXPORT void * JNICALL
JVM_FindLibraryEntry(void *handle, const char *name);
JNIEXPORT jboolean JNICALL
JVM_IsSupportedJNIVersion(jint version);
JNIEXPORT jobjectArray JNICALL
JVM_GetVmArguments(JNIEnv *env);
JNIEXPORT jboolean JNICALL
JVM_IsPreviewEnabled(void );
JNIEXPORT jboolean JNICALL
JVM_IsContinuationsSupported(void );
JNIEXPORT void JNICALL
JVM_InitializeFromArchive(JNIEnv* env, jclass cls);
JNIEXPORT void JNICALL
JVM_RegisterLambdaProxyClassForArchiving(JNIEnv* env, jclass caller,
jstring interfaceMethodName,
jobject factoryType,
jobject interfaceMethodType,
jobject implementationMember,
jobject dynamicMethodType,
jclass lambdaProxyClass);
JNIEXPORT jclass JNICALL
JVM_LookupLambdaProxyClassFromArchive(JNIEnv* env, jclass caller,
jstring interfaceMethodName,
jobject factoryType,
jobject interfaceMethodType,
jobject implementationMember,
jobject dynamicMethodType);
JNIEXPORT jboolean JNICALL
JVM_IsCDSDumpingEnabled(JNIEnv* env);
JNIEXPORT jboolean JNICALL
JVM_IsSharingEnabled(JNIEnv* env);
JNIEXPORT jboolean JNICALL
JVM_IsDumpingClassList(JNIEnv* env);
JNIEXPORT jlong JNICALL
JVM_GetRandomSeedForDumping();
JNIEXPORT void JNICALL
JVM_LogLambdaFormInvoker(JNIEnv* env, jstring line);
JNIEXPORT void JNICALL
JVM_DumpClassListToFile(JNIEnv* env, jstring fileName);
JNIEXPORT void JNICALL
JVM_DumpDynamicArchive(JNIEnv* env, jstring archiveName);
/*
* java . lang . Throwable
*/
JNIEXPORT void JNICALL
JVM_FillInStackTrace(JNIEnv *env, jobject throwable);
/*
* java . lang . StackTraceElement
*/
JNIEXPORT void JNICALL
JVM_InitStackTraceElementArray(JNIEnv *env, jobjectArray elements, jobject backtrace, jint depth);
JNIEXPORT void JNICALL
JVM_InitStackTraceElement(JNIEnv* env, jobject element, jobject stackFrameInfo);
/*
* java . lang . NullPointerException
*/
JNIEXPORT jstring JNICALL
JVM_GetExtendedNPEMessage(JNIEnv *env, jthrowable throwable);
/*
* java . lang . StackWalker
*/
enum {
JVM_STACKWALK_FILL_CLASS_REFS_ONLY = 0 x2,
JVM_STACKWALK_GET_CALLER_CLASS = 0 x04,
JVM_STACKWALK_SHOW_HIDDEN_FRAMES = 0 x20,
JVM_STACKWALK_FILL_LIVE_STACK_FRAMES = 0 x100
};
JNIEXPORT jobject JNICALL
JVM_CallStackWalk(JNIEnv *env, jobject stackStream, jlong mode,
jint skip_frames, jobject contScope, jobject cont,
jint frame_count, jint start_index, jobjectArray frames);
JNIEXPORT jint JNICALL
JVM_MoreStackWalk(JNIEnv *env, jobject stackStream, jlong mode, jlong anchor,
jint frame_count, jint start_index,
jobjectArray frames);
JNIEXPORT void JNICALL
JVM_SetStackWalkContinuation(JNIEnv *env, jobject stackStream, jlong anchor, jobjectArray frames, jobject cont);
/*
* java . lang . Thread
*/
JNIEXPORT void JNICALL
JVM_StartThread(JNIEnv *env, jobject thread);
JNIEXPORT jboolean JNICALL
JVM_IsThreadAlive(JNIEnv *env, jobject thread);
JNIEXPORT void JNICALL
JVM_SetThreadPriority(JNIEnv *env, jobject thread, jint prio);
JNIEXPORT void JNICALL
JVM_Yield(JNIEnv *env, jclass threadClass);
JNIEXPORT void JNICALL
JVM_Sleep(JNIEnv *env, jclass threadClass, jlong millis);
JNIEXPORT jobject JNICALL
JVM_CurrentCarrierThread(JNIEnv *env, jclass threadClass);
JNIEXPORT jobject JNICALL
JVM_CurrentThread(JNIEnv *env, jclass threadClass);
JNIEXPORT void JNICALL
JVM_SetCurrentThread(JNIEnv *env, jobject thisThread, jobject theThread);
JNIEXPORT void JNICALL
JVM_Interrupt(JNIEnv *env, jobject thread);
JNIEXPORT jboolean JNICALL
JVM_HoldsLock(JNIEnv *env, jclass threadClass, jobject obj);
JNIEXPORT jobject JNICALL
JVM_GetStackTrace(JNIEnv *env, jobject thread);
JNIEXPORT void JNICALL
JVM_DumpAllStacks(JNIEnv *env, jclass unused);
JNIEXPORT jobjectArray JNICALL
JVM_GetAllThreads(JNIEnv *env, jclass dummy);
JNIEXPORT void JNICALL
JVM_SetNativeThreadName(JNIEnv *env, jobject jthread, jstring name);
/* getStackTrace() and getAllStackTraces() method */
JNIEXPORT jobjectArray JNICALL
JVM_DumpThreads(JNIEnv *env, jclass threadClass, jobjectArray threads);
JNIEXPORT jobject JNICALL
JVM_ScopedValueCache(JNIEnv *env, jclass threadClass);
JNIEXPORT void JNICALL
JVM_SetScopedValueCache(JNIEnv *env, jclass threadClass, jobject theCache);
JNIEXPORT jobject JNICALL
JVM_FindScopedValueBindings(JNIEnv *env, jclass threadClass);
JNIEXPORT jlong JNICALL
JVM_GetNextThreadIdOffset(JNIEnv *env, jclass threadClass);
/*
* jdk . internal . vm . Continuation
*/
JNIEXPORT void JNICALL
JVM_RegisterContinuationMethods(JNIEnv *env, jclass cls);
/*
* java . lang . SecurityManager
*/
JNIEXPORT jobjectArray JNICALL
JVM_GetClassContext(JNIEnv *env);
/*
* java . lang . Package
*/
JNIEXPORT jstring JNICALL
JVM_GetSystemPackage(JNIEnv *env, jstring name);
JNIEXPORT jobjectArray JNICALL
JVM_GetSystemPackages(JNIEnv *env);
/*
* java . lang . ref . Reference
*/
JNIEXPORT jobject JNICALL
JVM_GetAndClearReferencePendingList(JNIEnv *env);
JNIEXPORT jboolean JNICALL
JVM_HasReferencePendingList(JNIEnv *env);
JNIEXPORT void JNICALL
JVM_WaitForReferencePendingList(JNIEnv *env);
JNIEXPORT jboolean JNICALL
JVM_ReferenceRefersTo(JNIEnv *env, jobject ref, jobject o);
JNIEXPORT void JNICALL
JVM_ReferenceClear(JNIEnv *env, jobject ref);
/*
* java . lang . ref . PhantomReference
*/
JNIEXPORT jboolean JNICALL
JVM_PhantomReferenceRefersTo(JNIEnv *env, jobject ref, jobject o);
/*
* java . io . ObjectInputStream
*/
JNIEXPORT jobject JNICALL
JVM_LatestUserDefinedLoader(JNIEnv *env);
/*
* java . lang . reflect . Array
*/
JNIEXPORT jint JNICALL
JVM_GetArrayLength(JNIEnv *env, jobject arr);
JNIEXPORT jobject JNICALL
JVM_GetArrayElement(JNIEnv *env, jobject arr, jint index);
JNIEXPORT jvalue JNICALL
JVM_GetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jint wCode);
JNIEXPORT void JNICALL
JVM_SetArrayElement(JNIEnv *env, jobject arr, jint index, jobject val);
JNIEXPORT void JNICALL
JVM_SetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jvalue v,
unsigned char vCode);
JNIEXPORT jobject JNICALL
JVM_NewArray(JNIEnv *env, jclass eltClass, jint length);
JNIEXPORT jobject JNICALL
JVM_NewMultiArray(JNIEnv *env, jclass eltClass, jintArray dim);
/*
* Returns the immediate caller class of the native method invoking
* JVM_GetCallerClass . The Method . invoke and other frames due to
* reflection machinery are skipped .
*
* The caller is expected to be marked with
* jdk . internal . reflect . CallerSensitive . The JVM will throw an
* error if it is not marked properly .
*/
JNIEXPORT jclass JNICALL
JVM_GetCallerClass(JNIEnv *env);
/*
* Find primitive classes
* utf : class name
*/
JNIEXPORT jclass JNICALL
JVM_FindPrimitiveClass(JNIEnv *env, const char *utf);
/*
* Find a class from a boot class loader . Returns NULL if class not found .
*/
JNIEXPORT jclass JNICALL
JVM_FindClassFromBootLoader(JNIEnv *env, const char *name);
/*
* Find a class from a given class loader . Throws ClassNotFoundException .
* name : name of class
* init : whether initialization is done
* loader : class loader to look up the class . This may not be the same as the caller ' s
* class loader .
* caller : initiating class . The initiating class may be null when a security
* manager is not installed .
*/
JNIEXPORT jclass JNICALL
JVM_FindClassFromCaller(JNIEnv *env, const char *name, jboolean init,
jobject loader, jclass caller);
/*
* Find a class from a given class .
*/
JNIEXPORT jclass JNICALL
JVM_FindClassFromClass(JNIEnv *env, const char *name, jboolean init,
jclass from);
/* Find a loaded class cached by the VM */
JNIEXPORT jclass JNICALL
JVM_FindLoadedClass(JNIEnv *env, jobject loader, jstring name);
/* Define a class */
JNIEXPORT jclass JNICALL
JVM_DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf,
jsize len, jobject pd);
/* Define a class with a source (added in JDK1.5) */
JNIEXPORT jclass JNICALL
JVM_DefineClassWithSource(JNIEnv *env, const char *name, jobject loader,
const jbyte *buf, jsize len, jobject pd,
const char *source);
/*
* Define a class with the specified lookup class .
* lookup : Lookup class
* name : the name of the class
* buf : class bytes
* len : length of class bytes
* pd : protection domain
* init : initialize the class
* flags : properties of the class
* classData : private static pre - initialized field ; may be null
*/
JNIEXPORT jclass JNICALL
JVM_LookupDefineClass(JNIEnv *env, jclass lookup, const char *name, const jbyte *buf,
jsize len, jobject pd, jboolean init, int flags, jobject classData);
/*
* Module support functions
*/
/*
* Define a module with the specified packages and bind the module to the
* given class loader .
* module : module to define
* is_open : specifies if module is open ( currently ignored )
* version : the module version
* location : the module location
* packages : array of packages in the module
*/
JNIEXPORT void JNICALL
JVM_DefineModule(JNIEnv *env, jobject module, jboolean is_open, jstring version,
jstring location, jobjectArray packages);
/*
* Set the boot loader ' s unnamed module .
* module : boot loader ' s unnamed module
*/
JNIEXPORT void JNICALL
JVM_SetBootLoaderUnnamedModule(JNIEnv *env, jobject module);
/*
* Do a qualified export of a package .
* from_module : module containing the package to export
* package : name of the package to export
* to_module : module to export the package to
*/
JNIEXPORT void JNICALL
JVM_AddModuleExports(JNIEnv *env, jobject from_module, jstring package, jobject to_module);
/*
* Do an export of a package to all unnamed modules .
* from_module : module containing the package to export
* package : name of the package to export to all unnamed modules
*/
JNIEXPORT void JNICALL
JVM_AddModuleExportsToAllUnnamed(JNIEnv *env, jobject from_module, jstring package);
/*
* Do an unqualified export of a package .
* from_module : module containing the package to export
* package : name of the package to export
*/
JNIEXPORT void JNICALL
JVM_AddModuleExportsToAll(JNIEnv *env, jobject from_module, jstring package);
/*
* Add a module to the list of modules that a given module can read .
* from_module : module requesting read access
* source_module : module that from_module wants to read
*/
JNIEXPORT void JNICALL
JVM_AddReadsModule(JNIEnv *env, jobject from_module, jobject source_module);
/*
* Define all modules that have been stored in the CDS archived heap .
* platform_loader : the built - in platform class loader
* system_loader : the built - in system class loader
*/
JNIEXPORT void JNICALL
JVM_DefineArchivedModules(JNIEnv *env, jobject platform_loader, jobject system_loader);
/*
* Reflection support functions
*/
JNIEXPORT jstring JNICALL
JVM_InitClassName(JNIEnv *env, jclass cls);
JNIEXPORT jobjectArray JNICALL
JVM_GetClassInterfaces(JNIEnv *env, jclass cls);
JNIEXPORT jboolean JNICALL
JVM_IsInterface(JNIEnv *env, jclass cls);
JNIEXPORT jobjectArray JNICALL
JVM_GetClassSigners(JNIEnv *env, jclass cls);
JNIEXPORT void JNICALL
JVM_SetClassSigners(JNIEnv *env, jclass cls, jobjectArray signers);
JNIEXPORT jobject JNICALL
JVM_GetProtectionDomain(JNIEnv *env, jclass cls);
JNIEXPORT jboolean JNICALL
JVM_IsArrayClass(JNIEnv *env, jclass cls);
JNIEXPORT jboolean JNICALL
JVM_IsPrimitiveClass(JNIEnv *env, jclass cls);
JNIEXPORT jboolean JNICALL
JVM_IsHiddenClass(JNIEnv *env, jclass cls);
JNIEXPORT jint JNICALL
JVM_GetClassModifiers(JNIEnv *env, jclass cls);
JNIEXPORT jobjectArray JNICALL
JVM_GetDeclaredClasses(JNIEnv *env, jclass ofClass);
JNIEXPORT jclass JNICALL
JVM_GetDeclaringClass(JNIEnv *env, jclass ofClass);
JNIEXPORT jstring JNICALL
JVM_GetSimpleBinaryName(JNIEnv *env, jclass ofClass);
/* Generics support (JDK 1.5) */
JNIEXPORT jstring JNICALL
JVM_GetClassSignature(JNIEnv *env, jclass cls);
/* Annotations support (JDK 1.5) */
JNIEXPORT jbyteArray JNICALL
JVM_GetClassAnnotations(JNIEnv *env, jclass cls);
/* Type use annotations support (JDK 1.8) */
JNIEXPORT jbyteArray JNICALL
JVM_GetClassTypeAnnotations(JNIEnv *env, jclass cls);
JNIEXPORT jbyteArray JNICALL
JVM_GetFieldTypeAnnotations(JNIEnv *env, jobject field);
JNIEXPORT jbyteArray JNICALL
JVM_GetMethodTypeAnnotations(JNIEnv *env, jobject method);
/*
* New ( JDK 1 . 4 ) reflection implementation
*/
JNIEXPORT jobjectArray JNICALL
JVM_GetClassDeclaredMethods(JNIEnv *env, jclass ofClass, jboolean publicOnly);
JNIEXPORT jobjectArray JNICALL
JVM_GetClassDeclaredFields(JNIEnv *env, jclass ofClass, jboolean publicOnly);
JNIEXPORT jobjectArray JNICALL
JVM_GetClassDeclaredConstructors(JNIEnv *env, jclass ofClass, jboolean publicOnly);
/* Differs from JVM_GetClassModifiers in treatment of inner classes.
This returns the access flags for the class as specified in the
class file rather than searching the InnerClasses attribute ( if
present ) to find the source - level access flags . Only the values of
the low 13 bits ( i . e . , a mask of 0 x1FFF ) are guaranteed to be
valid. */
JNIEXPORT jint JNICALL
JVM_GetClassAccessFlags(JNIEnv *env, jclass cls);
/* Nestmates - since JDK 11 */
JNIEXPORT jboolean JNICALL
JVM_AreNestMates(JNIEnv *env, jclass current, jclass member);
JNIEXPORT jclass JNICALL
JVM_GetNestHost(JNIEnv *env, jclass current);
JNIEXPORT jobjectArray JNICALL
JVM_GetNestMembers(JNIEnv *env, jclass current);
/* Records - since JDK 16 */
JNIEXPORT jboolean JNICALL
JVM_IsRecord(JNIEnv *env, jclass cls);
JNIEXPORT jobjectArray JNICALL
JVM_GetRecordComponents(JNIEnv *env, jclass ofClass);
/* Sealed classes - since JDK 17 */
JNIEXPORT jobjectArray JNICALL
JVM_GetPermittedSubclasses(JNIEnv *env, jclass current);
/* The following two reflection routines are still needed due to startup time issues */
/*
* java . lang . reflect . Method
*/
JNIEXPORT jobject JNICALL
JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0);
/*
* java . lang . reflect . Constructor
*/
JNIEXPORT jobject JNICALL
JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0);
/*
* Constant pool access ; currently used to implement reflective access to annotations ( JDK 1 . 5 )
*/
JNIEXPORT jobject JNICALL
JVM_GetClassConstantPool(JNIEnv *env, jclass cls);
JNIEXPORT jint JNICALL JVM_ConstantPoolGetSize
(JNIEnv *env, jobject unused, jobject jcpool);
JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAt
(JNIEnv *env, jobject unused, jobject jcpool, jint index);
JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAtIfLoaded
(JNIEnv *env, jobject unused, jobject jcpool, jint index);
JNIEXPORT jint JNICALL JVM_ConstantPoolGetClassRefIndexAt
(JNIEnv *env, jobject obj, jobject unused, jint index);
JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAt
(JNIEnv *env, jobject unused, jobject jcpool, jint index);
JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAtIfLoaded
(JNIEnv *env, jobject unused, jobject jcpool, jint index);
JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAt
(JNIEnv *env, jobject unused, jobject jcpool, jint index);
JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAtIfLoaded
(JNIEnv *env, jobject unused, jobject jcpool, jint index);
JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetMemberRefInfoAt
(JNIEnv *env, jobject unused, jobject jcpool, jint index);
JNIEXPORT jint JNICALL JVM_ConstantPoolGetNameAndTypeRefIndexAt
(JNIEnv *env, jobject obj, jobject unused, jint index);
JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetNameAndTypeRefInfoAt
(JNIEnv *env, jobject obj, jobject unused, jint index);
JNIEXPORT jint JNICALL JVM_ConstantPoolGetIntAt
(JNIEnv *env, jobject unused, jobject jcpool, jint index);
JNIEXPORT jlong JNICALL JVM_ConstantPoolGetLongAt
(JNIEnv *env, jobject unused, jobject jcpool, jint index);
JNIEXPORT jfloat JNICALL JVM_ConstantPoolGetFloatAt
(JNIEnv *env, jobject unused, jobject jcpool, jint index);
JNIEXPORT jdouble JNICALL JVM_ConstantPoolGetDoubleAt
(JNIEnv *env, jobject unused, jobject jcpool, jint index);
JNIEXPORT jstring JNICALL JVM_ConstantPoolGetStringAt
(JNIEnv *env, jobject unused, jobject jcpool, jint index);
JNIEXPORT jstring JNICALL JVM_ConstantPoolGetUTF8At
(JNIEnv *env, jobject unused, jobject jcpool, jint index);
JNIEXPORT jbyte JNICALL JVM_ConstantPoolGetTagAt
(JNIEnv *env, jobject unused, jobject jcpool, jint index);
/*
* Parameter reflection
*/
JNIEXPORT jobjectArray JNICALL
JVM_GetMethodParameters(JNIEnv *env, jobject method);
/*
* java . security . *
*/
JNIEXPORT jobject JNICALL
JVM_GetInheritedAccessControlContext(JNIEnv *env, jclass cls);
/*
* Ensure that code doing a stackwalk and using javaVFrame : : locals ( ) to
* get the value will see a materialized value and not a scalar - replaced
* null value .
*/
#define JVM_EnsureMaterializedForStackWalk(env, value) \
do {} while (0 ) // Nothing to do. The fact that the value escaped
// through a native method is enough.
JNIEXPORT void JNICALL
JVM_EnsureMaterializedForStackWalk_func(JNIEnv* env, jobject vthread, jobject value);
JNIEXPORT jobject JNICALL
JVM_GetStackAccessControlContext(JNIEnv *env, jclass cls);
/*
* Signal support , used to implement the shutdown sequence . Every VM must
* support JVM_SIGINT and JVM_SIGTERM , raising the former for user interrupts
* ( ^ C ) and the latter for external termination ( kill , system shutdown , etc . ) .
* Other platform - dependent signal values may also be supported .
*/
JNIEXPORT void * JNICALL
JVM_RegisterSignal(jint sig, void *handler);
JNIEXPORT jboolean JNICALL
JVM_RaiseSignal(jint sig);
JNIEXPORT jint JNICALL
JVM_FindSignal(const char *name);
/*
* Retrieve the assertion directives for the specified class .
*/
JNIEXPORT jboolean JNICALL
JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls);
/*
* Retrieve the assertion directives from the VM .
*/
JNIEXPORT jobject JNICALL
JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused);
/*
* java . util . concurrent . atomic . AtomicLong
*/
JNIEXPORT jboolean JNICALL
JVM_SupportsCX8(void );
/*
* java . lang . ref . Finalizer
*/
JNIEXPORT void JNICALL
JVM_ReportFinalizationComplete(JNIEnv *env, jobject finalizee);
JNIEXPORT jboolean JNICALL
JVM_IsFinalizationEnabled(JNIEnv *env);
/*************************************************************************
PART 2 : Support for the Verifier and Class File Format Checker
************************************************************************/
/*
* Return the class name in UTF format . The result is valid
* until JVM_ReleaseUTf is called .
*
* The caller must treat the string as a constant and not modify it
* in any way .
*/
JNIEXPORT const char * JNICALL
JVM_GetClassNameUTF(JNIEnv *env, jclass cb);
/*
* Returns the constant pool types in the buffer provided by " types . "
*/
JNIEXPORT void JNICALL
JVM_GetClassCPTypes(JNIEnv *env, jclass cb, unsigned char *types);
/*
* Returns the number of Constant Pool entries .
*/
JNIEXPORT jint JNICALL
JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cb);
/*
* Returns the number of * declared * fields or methods .
*/
JNIEXPORT jint JNICALL
JVM_GetClassFieldsCount(JNIEnv *env, jclass cb);
JNIEXPORT jint JNICALL
JVM_GetClassMethodsCount(JNIEnv *env, jclass cb);
/*
* Returns the CP indexes of exceptions raised by a given method .
* Places the result in the given buffer .
*
* The method is identified by method_index .
*/
JNIEXPORT void JNICALL
JVM_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cb, jint method_index,
unsigned short *exceptions);
/*
* Returns the number of exceptions raised by a given method .
* The method is identified by method_index .
*/
JNIEXPORT jint JNICALL
JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cb, jint method_index);
/*
* Returns the byte code sequence of a given method .
* Places the result in the given buffer .
*
* The method is identified by method_index .
*/
JNIEXPORT void JNICALL
JVM_GetMethodIxByteCode(JNIEnv *env, jclass cb, jint method_index,
unsigned char *code);
/*
* Returns the length of the byte code sequence of a given method .
* The method is identified by method_index .
*/
JNIEXPORT jint JNICALL
JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cb, jint method_index);
/*
* A structure used to a capture exception table entry in a Java method .
*/
typedef struct {
jint start_pc;
jint end_pc;
jint handler_pc;
jint catchType;
} JVM_ExceptionTableEntryType;
/*
* Returns the exception table entry at entry_index of a given method .
* Places the result in the given buffer .
*
* The method is identified by method_index .
*/
JNIEXPORT void JNICALL
JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cb, jint method_index,
jint entry_index,
JVM_ExceptionTableEntryType *entry);
/*
* Returns the length of the exception table of a given method .
* The method is identified by method_index .
*/
JNIEXPORT jint JNICALL
JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cb, int index);
/*
* Returns the modifiers of a given field .
* The field is identified by field_index .
*/
JNIEXPORT jint JNICALL
JVM_GetFieldIxModifiers(JNIEnv *env, jclass cb, int index);
/*
* Returns the modifiers of a given method .
* The method is identified by method_index .
*/
JNIEXPORT jint JNICALL
JVM_GetMethodIxModifiers(JNIEnv *env, jclass cb, int index);
/*
* Returns the number of local variables of a given method .
* The method is identified by method_index .
*/
JNIEXPORT jint JNICALL
JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cb, int index);
/*
* Returns the number of arguments ( including this pointer ) of a given method .
* The method is identified by method_index .
*/
JNIEXPORT jint JNICALL
JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cb, int index);
/*
* Returns the maximum amount of stack ( in words ) used by a given method .
* The method is identified by method_index .
*/
JNIEXPORT jint JNICALL
JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cb, int index);
/*
* Is a given method a constructor .
* The method is identified by method_index .
*/
JNIEXPORT jboolean JNICALL
JVM_IsConstructorIx(JNIEnv *env, jclass cb, int index);
/*
* Is the given method generated by the VM .
* The method is identified by method_index .
*/
JNIEXPORT jboolean JNICALL
JVM_IsVMGeneratedMethodIx(JNIEnv *env, jclass cb, int index);
/*
* Returns the name of a given method in UTF format .
* The result remains valid until JVM_ReleaseUTF is called .
*
* The caller must treat the string as a constant and not modify it
* in any way .
*/
JNIEXPORT const char * JNICALL
JVM_GetMethodIxNameUTF(JNIEnv *env, jclass cb, jint index);
/*
* Returns the signature of a given method in UTF format .
* The result remains valid until JVM_ReleaseUTF is called .
*
* The caller must treat the string as a constant and not modify it
* in any way .
*/
JNIEXPORT const char * JNICALL
JVM_GetMethodIxSignatureUTF(JNIEnv *env, jclass cb, jint index);
/*
* Returns the name of the field referred to at a given constant pool
* index .
*
* The result is in UTF format and remains valid until JVM_ReleaseUTF
* is called .
*
* The caller must treat the string as a constant and not modify it
* in any way .
*/
JNIEXPORT const char * JNICALL
JVM_GetCPFieldNameUTF(JNIEnv *env, jclass cb, jint index);
/*
* Returns the name of the method referred to at a given constant pool
* index .
*
* The result is in UTF format and remains valid until JVM_ReleaseUTF
* is called .
*
* The caller must treat the string as a constant and not modify it
* in any way .
*/
JNIEXPORT const char * JNICALL
JVM_GetCPMethodNameUTF(JNIEnv *env, jclass cb, jint index);
/*
* Returns the signature of the method referred to at a given constant pool
* index .
*
* The result is in UTF format and remains valid until JVM_ReleaseUTF
* is called .
*
* The caller must treat the string as a constant and not modify it
* in any way .
*/
JNIEXPORT const char * JNICALL
JVM_GetCPMethodSignatureUTF(JNIEnv *env, jclass cb, jint index);
/*
* Returns the signature of the field referred to at a given constant pool
* index .
*
* The result is in UTF format and remains valid until JVM_ReleaseUTF
* is called .
*
* The caller must treat the string as a constant and not modify it
* in any way .
*/
JNIEXPORT const char * JNICALL
JVM_GetCPFieldSignatureUTF(JNIEnv *env, jclass cb, jint index);
/*
* Returns the class name referred to at a given constant pool index .
*
* The result is in UTF format and remains valid until JVM_ReleaseUTF
* is called .
*
* The caller must treat the string as a constant and not modify it
* in any way .
*/
JNIEXPORT const char * JNICALL
JVM_GetCPClassNameUTF(JNIEnv *env, jclass cb, jint index);
/*
* Returns the class name referred to at a given constant pool index .
*
* The constant pool entry must refer to a CONSTANT_Fieldref .
*
* The result is in UTF format and remains valid until JVM_ReleaseUTF
* is called .
*
* The caller must treat the string as a constant and not modify it
* in any way .
*/
JNIEXPORT const char * JNICALL
JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cb, jint index);
/*
* Returns the class name referred to at a given constant pool index .
*
* The constant pool entry must refer to CONSTANT_Methodref or
* CONSTANT_InterfaceMethodref .
*
* The result is in UTF format and remains valid until JVM_ReleaseUTF
* is called .
*
* The caller must treat the string as a constant and not modify it
* in any way .
*/
JNIEXPORT const char * JNICALL
JVM_GetCPMethodClassNameUTF(JNIEnv *env, jclass cb, jint index);
/*
* Returns the modifiers of a field in calledClass . The field is
* referred to in class cb at constant pool entry index .
*
* The caller must treat the string as a constant and not modify it
* in any way .
*
* Returns - 1 if the field does not exist in calledClass .
*/
JNIEXPORT jint JNICALL
JVM_GetCPFieldModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
/*
* Returns the modifiers of a method in calledClass . The method is
* referred to in class cb at constant pool entry index .
*
* Returns - 1 if the method does not exist in calledClass .
*/
JNIEXPORT jint JNICALL
JVM_GetCPMethodModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
/*
* Releases the UTF string obtained from the VM .
*/
JNIEXPORT void JNICALL
JVM_ReleaseUTF(const char *utf);
/*
* Compare if two classes are in the same package .
*/
JNIEXPORT jboolean JNICALL
JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2);
/*************************************************************************
PART 3 : I / O and Network Support
************************************************************************/
/*
* Convert a pathname into native format . This function does syntactic
* cleanup , such as removing redundant separator characters . It modifies
* the given pathname string in place .
*/
JNIEXPORT char * JNICALL
JVM_NativePath(char *);
JNIEXPORT void * JNICALL
JVM_RawMonitorCreate(void );
JNIEXPORT void JNICALL
JVM_RawMonitorDestroy(void *mon);
JNIEXPORT jint JNICALL
JVM_RawMonitorEnter(void *mon);
JNIEXPORT void JNICALL
JVM_RawMonitorExit(void *mon);
/*
* java . lang . management support
*/
JNIEXPORT void * JNICALL
JVM_GetManagement(jint version);
/*
* com . sun . tools . attach . VirtualMachine support
*
* Initialize the agent properties with the properties maintained in the VM .
*/
JNIEXPORT jobject JNICALL
JVM_InitAgentProperties(JNIEnv *env, jobject agent_props);
JNIEXPORT jstring JNICALL
JVM_GetTemporaryDirectory(JNIEnv *env);
/* Generics reflection support.
*
* Returns information about the given class ' s EnclosingMethod
* attribute , if present , or null if the class had no enclosing
* method .
*
* If non - null , the returned array contains three elements . Element 0
* is the java . lang . Class of which the enclosing method is a member ,
* and elements 1 and 2 are the java . lang . Strings for the enclosing
* method ' s name and descriptor , respectively .
*/
JNIEXPORT jobjectArray JNICALL
JVM_GetEnclosingMethodInfo(JNIEnv* env, jclass ofClass);
/*
* Virtual thread support .
*/
JNIEXPORT void JNICALL
JVM_VirtualThreadMountBegin(JNIEnv* env, jobject vthread, jboolean first_mount);
JNIEXPORT void JNICALL
JVM_VirtualThreadMountEnd(JNIEnv* env, jobject vthread, jboolean first_mount);
JNIEXPORT void JNICALL
JVM_VirtualThreadUnmountBegin(JNIEnv* env, jobject vthread, jboolean last_unmount);
JNIEXPORT void JNICALL
JVM_VirtualThreadUnmountEnd(JNIEnv* env, jobject vthread, jboolean last_unmount);
JNIEXPORT void JNICALL
JVM_VirtualThreadHideFrames(JNIEnv* env, jobject vthread, jboolean hide);
/*
* Core reflection support .
*/
JNIEXPORT jint JNICALL
JVM_GetClassFileVersion(JNIEnv *env, jclass current);
/*
* This structure is used by the launcher to get the default thread
* stack size from the VM using JNI_GetDefaultJavaVMInitArgs ( ) with a
* version of 1 . 1 . As it is not supported otherwise , it has been removed
* from jni . h
*/
typedef struct JDK1_1InitArgs {
jint version;
char **properties;
jint checkSource;
jint nativeStackSize;
jint javaStackSize;
jint minHeapSize;
jint maxHeapSize;
jint verifyMode;
char *classpath;
jint (JNICALL *vfprintf)(FILE *fp, const char *format, va_list args);
void (JNICALL *exit )(jint code);
void (JNICALL *abort)(void );
jint enableClassGC;
jint enableVerboseGC;
jint disableAsyncGC;
jint verbose;
jboolean debugging;
jint debugPort;
} JDK1_1InitArgs;
#ifdef __cplusplus
} /* extern "C" */
#endif /* __cplusplus */
#endif /* !_JAVASOFT_JVM_H_ */
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