libjava/gcj/cni.h

   1 // gcj/cni.h -*- c++ -*-
   2 // This file describes the Cygnus Native Interface, CNI.
   3 // It provides a nicer interface to many of the things in gcj/javaprims.h.
   4
   5 /* Copyright (C) 1998, 1999  Free Software Foundation
   6
   7    This file is part of libgcj.
   8
   9 This software is copyrighted work licensed under the terms of the
  10 Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
  11 details.  */
  12
  13 #ifndef __GCJ_CNI_H__
  14 #define __GCJ_CNI_H__
  15
  16 #include <java/lang/Object.h>
  17 #include <java/lang/Class.h>
  18
  19 #include <gcj/array.h>
  20
  21 #include <string.h>
  22
  23 extern inline jobject
  24 JvAllocObject (jclass cls)
  25 {
  26   return _Jv_AllocObject (cls, cls->size());
  27 }
  28
  29 extern inline jobject
  30 JvAllocObject (jclass cls, jsize sz)
  31 {
  32   return _Jv_AllocObject (cls, sz);
  33 }
  34
  35 extern "C" jstring _Jv_NewStringUTF (const char *bytes);
  36 extern "C" void _Jv_InitClass (jclass);
  37
  38 extern inline void
  39 JvInitClass (jclass cls)
  40 {
  41   return _Jv_InitClass (cls);
  42 }
  43
  44 extern inline jstring
  45 JvAllocString (jsize sz)
  46 {
  47   return _Jv_AllocString (sz);
  48 }
  49
  50 extern inline jstring
  51 JvNewString (const jchar *chars, jsize len)
  52 {
  53   return _Jv_NewString (chars, len);
  54 }
  55
  56 extern inline jstring
  57 JvNewStringLatin1 (const char *bytes, jsize len)
  58 {
  59   return _Jv_NewStringLatin1 (bytes, len);
  60 }
  61
  62 extern inline jstring
  63 JvNewStringLatin1 (const char *bytes)
  64 {
  65   return _Jv_NewStringLatin1 (bytes, strlen (bytes));
  66 }
  67
  68 extern inline jchar *
  69 _Jv_GetStringChars (jstring str)
  70 {
  71   return (jchar*)((char*) str->data + str->boffset);
  72 }
  73
  74 extern inline jchar*
  75 JvGetStringChars (jstring str)
  76 {
  77   return _Jv_GetStringChars (str);
  78 }
  79
  80 extern inline jsize
  81 JvGetStringUTFLength (jstring string)
  82 {
  83   return _Jv_GetStringUTFLength (string);
  84 }
  85
  86 extern inline jsize
  87 JvGetStringUTFRegion (jstring str, jsize start, jsize len, char *buf)
  88 {
  89   return _Jv_GetStringUTFRegion (str, start, len, buf);
  90 }
  91
  92 extern inline jstring
  93 JvNewStringUTF (const char *bytes)
  94 {
  95   return _Jv_NewStringUTF (bytes);
  96 }
  97
  98 class JvSynchronize
  99 {
 100 private:
 101   jobject obj;
 102 public:
 103   JvSynchronize (const jobject &o) : obj (o)
 104     { _Jv_MonitorEnter (obj); }
 105   ~JvSynchronize ()
 106     { _Jv_MonitorExit (obj); }
 107 };
 108
 109 /* Call malloc, but throw exception if insufficient memory. */
 110 extern inline void *
 111 JvMalloc (jsize size)
 112 {
 113   return _Jv_Malloc (size);
 114 }
 115
 116 extern inline void
 117 JvFree (void *ptr)
 118 {
 119   return _Jv_Free (ptr);
 120 }
 121 #endif /* __GCJ_CNI_H__ */