libjava/gcj/cni.h

   1 // gcj/cni.h -*- c++ -*-
   2 // This file describes the Compiled Native Interface, CNI.
   3 // It provides a nicer interface to many of the things in gcj/javaprims.h.
   4
   5 /* Copyright (C) 1998, 1999, 2002  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 "C" void _Jv_InitClass (jclass);
  24 extern "C" void *_Jv_AllocBytes (jsize size) __attribute__((__malloc__));
  25
  26 extern inline void
  27 JvInitClass (jclass cls)
  28 {
  29   return _Jv_InitClass (cls);
  30 }
  31
  32 extern inline void *
  33 JvAllocBytes (jsize sz)
  34 {
  35   return _Jv_AllocBytes (sz);
  36 }
  37
  38 extern inline jstring
  39 JvAllocString (jsize sz)
  40 {
  41   return _Jv_AllocString (sz);
  42 }
  43
  44 extern inline jstring
  45 JvNewString (const jchar *chars, jsize len)
  46 {
  47   return _Jv_NewString (chars, len);
  48 }
  49
  50 extern inline jstring
  51 JvNewStringLatin1 (const char *bytes, jsize len)
  52 {
  53   return _Jv_NewStringLatin1 (bytes, len);
  54 }
  55
  56 extern inline jstring
  57 JvNewStringLatin1 (const char *bytes)
  58 {
  59   return _Jv_NewStringLatin1 (bytes, strlen (bytes));
  60 }
  61
  62 extern inline jchar *
  63 _Jv_GetStringChars (jstring str)
  64 {
  65   return (jchar*)((char*) str->data + str->boffset);
  66 }
  67
  68 extern inline jchar*
  69 JvGetStringChars (jstring str)
  70 {
  71   return _Jv_GetStringChars (str);
  72 }
  73
  74 extern inline jsize
  75 JvGetStringUTFLength (jstring string)
  76 {
  77   return _Jv_GetStringUTFLength (string);
  78 }
  79
  80 extern inline jsize
  81 JvGetStringUTFRegion (jstring str, jsize start, jsize len, char *buf)
  82 {
  83   return _Jv_GetStringUTFRegion (str, start, len, buf);
  84 }
  85
  86 extern inline jstring
  87 JvNewStringUTF (const char *bytes)
  88 {
  89   return _Jv_NewStringUTF (bytes);
  90 }
  91
  92 class JvSynchronize
  93 {
  94 private:
  95   jobject obj;
  96 public:
  97   JvSynchronize (const jobject &o) : obj (o)
  98     { _Jv_MonitorEnter (obj); }
  99   ~JvSynchronize ()
 100     { _Jv_MonitorExit (obj); }
 101 };
 102
 103 /* Call malloc, but throw exception if insufficient memory. */
 104 extern inline void *
 105 JvMalloc (jsize size)
 106 {
 107   return _Jv_Malloc (size);
 108 }
 109
 110 extern inline void
 111 JvFree (void *ptr)
 112 {
 113   return _Jv_Free (ptr);
 114 }
 115
 116 extern inline jint
 117 JvCreateJavaVM (void* vm_args)
 118 {
 119   return _Jv_CreateJavaVM (vm_args);
 120 }
 121
 122 extern inline java::lang::Thread*
 123 JvAttachCurrentThread (jstring name, java::lang::ThreadGroup* group)
 124 {
 125   return _Jv_AttachCurrentThread (name, group);
 126 }
 127
 128 extern inline java::lang::Thread*
 129 JvAttachCurrentThreadAsDaemon (jstring name, java::lang::ThreadGroup* group)
 130 {
 131   return _Jv_AttachCurrentThreadAsDaemon (name, group);
 132 }
 133
 134 extern inline jint
 135 JvDetachCurrentThread (void)
 136 {
 137   return _Jv_DetachCurrentThread ();
 138 }
 139 #endif /* __GCJ_CNI_H__ */