// cni.h -*- c++ -*-
// This file describes the Cygnus Native Interface, CNI.
// It provides a nicer interface to many of the things in javaprims.h.

/* Copyright (C) 1998, 1999  Cygnus Solutions

   This file is part of libgcj.

This software is copyrighted work licensed under the terms of the
Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
details.  */

#ifndef __JAVA_CNI_H__
#define __JAVA_CNI_H__

#include <java/lang/Object.h>
#include <java/lang/Class.h>

#include <java-threads.h>
#include <java-array.h>

extern inline jobject
JvAllocObject (jclass cls)
{
  return _Jv_AllocObject (cls, cls->size());
}

extern inline jobject
JvAllocObject (jclass cls, jsize sz)
{
  return _Jv_AllocObject (cls, sz);
}

extern "C" jstring _Jv_NewStringUTF (const char *bytes);
extern "C" void _Jv_InitClass (jclass);

extern inline void
JvInitClass (jclass cls)
{
  return _Jv_InitClass (cls);
}

extern inline jstring
JvAllocString (jsize sz)
{
  return _Jv_AllocString (sz);
}

extern inline jstring
JvNewString (const jchar *chars, jsize len)
{
  return _Jv_NewString (chars, len);
}

extern inline jstring
JvNewStringLatin1 (const char *bytes, jsize len)
{
  return _Jv_NewStringLatin1 (bytes, len);
}

extern inline jstring
JvNewStringLatin1 (const char *bytes)
{
  return _Jv_NewStringLatin1 (bytes, strlen (bytes));
}

extern inline jchar *
_Jv_GetStringChars (jstring str)
{
  return (jchar*)((char*) str->data + str->boffset);
}

extern inline jchar*
JvGetStringChars (jstring str)
{
  return _Jv_GetStringChars (str);
}

extern inline jsize
JvGetStringUTFLength (jstring string)
{
  return _Jv_GetStringUTFLength (string);
}

extern inline jsize
JvGetStringUTFRegion (jstring str, jsize start, jsize len, char *buf) 
{ 
  return _Jv_GetStringUTFRegion (str, start, len, buf); 
} 

extern inline jstring
JvNewStringUTF (const char *bytes)
{
  return _Jv_NewStringUTF (bytes);
}

extern class _Jv_PrimClass _Jv_byteClass, _Jv_shortClass, _Jv_intClass,
  _Jv_longClass, _Jv_booleanClass, _Jv_charClass, _Jv_floatClass,
  _Jv_doubleClass, _Jv_voidClass;
#define JvPrimClass(TYPE) ((jclass) & _Jv_##TYPE##Class)

class JvSynchronize
{
private:
  jobject obj;
public:
  JvSynchronize (const jobject &o) : obj (o)
    { _Jv_MonitorEnter (obj); }
  ~JvSynchronize ()
    { _Jv_MonitorExit (obj); }
};

// Throw some exception.
extern void JvThrow (jobject obj) __attribute__ ((__noreturn__));
extern inline void
JvThrow (jobject obj)
{
  _Jv_Throw ((void *) obj);
}

/* Call malloc, but throw exception if insufficient memory. */
extern inline void *
JvMalloc (jsize size)
{
  return _Jv_Malloc (size);
}

extern inline void
JvFree (void *ptr)
{
  return _Jv_Free (ptr);
}
#endif /* __JAVA_CNI_H__ */