102 lines
3.4 KiB
C++
102 lines
3.4 KiB
C++
// jvm.h - Header file for private implementation information. -*- c++ -*-
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/* Copyright (C) 1998, 1999 Cygnus Solutions
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This file is part of libgcj.
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This software is copyrighted work licensed under the terms of the
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Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
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details. */
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#ifndef __JAVA_JVM_H__
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#define __JAVA_JVM_H__
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#include <java-assert.h>
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#include <java-field.h>
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/* Structure of the virtual table. */
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struct _Jv_VTable
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{
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jclass clas;
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void *method[1];
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};
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/* Extract a character from a Java-style Utf8 string.
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* PTR points to the current character.
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* LIMIT points to the end of the Utf8 string.
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* PTR is incremented to point after the character thta gets returns.
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* On an error, -1 is returned. */
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#define UTF8_GET(PTR, LIMIT) \
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((PTR) >= (LIMIT) ? -1 \
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: *(PTR) < 128 ? *(PTR)++ \
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: (*(PTR)&0xE0) == 0xC0 && ((PTR)+=2)<=(LIMIT) && ((PTR)[-1]&0xC0) == 0x80 \
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? (((PTR)[-2] & 0x1F) << 6) + ((PTR)[-1] & 0x3F) \
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: (*(PTR) & 0xF0) == 0xE0 && ((PTR) += 3) <= (LIMIT) \
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&& ((PTR)[-2] & 0xC0) == 0x80 && ((PTR)[-1] & 0xC0) == 0x80 \
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? (((PTR)[-3]&0x0F) << 12) + (((PTR)[-2]&0x3F) << 6) + ((PTR)[-1]&0x3F) \
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: ((PTR)++, -1))
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extern int _Jv_strLengthUtf8(char* str, int len);
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typedef struct _Jv_Utf8Const Utf8Const;
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_Jv_Utf8Const *_Jv_makeUtf8Const (char *s, int len);
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extern jboolean _Jv_equalUtf8Consts (_Jv_Utf8Const *, _Jv_Utf8Const *);
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extern jboolean _Jv_equal (_Jv_Utf8Const *, jstring, jint);
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#define StringClass _CL_Q34java4lang6String
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extern java::lang::Class StringClass;
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/* Type of pointer used as finalizer. */
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typedef void _Jv_FinalizerFunc (jobject);
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/* Allocate space for a new Java object. */
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void *_Jv_AllocObj (jsize size);
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/* Allocate space for an array of Java objects. */
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void *_Jv_AllocArray (jsize size);
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/* Allocate space that is known to be pointer-free. */
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void *_Jv_AllocBytes (jsize size);
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/* Initialize the GC. */
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void _Jv_InitGC (void);
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/* Register a finalizer. */
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void _Jv_RegisterFinalizer (void *object, _Jv_FinalizerFunc *method);
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/* Run finalizers for objects ready to be finalized.. */
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void _Jv_RunFinalizers (void);
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/* Run all finalizers. Should be called only before exit. */
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void _Jv_RunAllFinalizers (void);
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/* Perform a GC. */
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void _Jv_RunGC (void);
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/* Return approximation of total size of heap. */
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long _Jv_GCTotalMemory (void);
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/* Return approximation of total free memory. */
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long _Jv_GCFreeMemory (void);
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/* Allocate some unscanned bytes. Throw exception if out of memory. */
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void *_Jv_AllocBytesChecked (jsize size);
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// This function is used to determine the hash code of an object.
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inline jint
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_Jv_HashCode (jobject obj)
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{
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return (jint) obj;
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}
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extern "C" void _Jv_ThrowBadArrayIndex (jint bad_index);
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extern "C" jobject _Jv_NewArray (jint type, jint size);
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extern "C" jobject _Jv_NewMultiArray (jclass klass, jint dims, ...);
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extern "C" void *_Jv_CheckCast (jclass klass, jobject obj);
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extern "C" void *_Jv_LookupInterfaceMethod (jclass klass, Utf8Const *name,
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Utf8Const *signature);
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extern "C" void _Jv_CheckArrayStore (jobject array, jobject obj);
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extern "C" void _Jv_RegisterClass (jclass klass);
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extern "C" void _Jv_RegisterClasses (jclass *classes);
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extern jclass _Jv_FindClass (_Jv_Utf8Const *name,
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java::lang::ClassLoader *loader);
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extern jclass _Jv_FindClassFromSignature (char *,
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java::lang::ClassLoader *loader);
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extern jobject _Jv_NewMultiArray (jclass, jint ndims, jint* dims);
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#endif /* __JAVA_JVM_H__ */
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