libjava/include/jni_md.h

   1 /* jni_md.h
   2    Copyright (C) 2001, 2005 Free Software Foundation, Inc.
   3
   4 This file is part of GNU Classpath.
   5
   6 GNU Classpath is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2, or (at your option)
   9 any later version.
  10
  11 GNU Classpath is distributed in the hope that it will be useful, but
  12 WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GNU Classpath; see the file COPYING.  If not, write to the
  18 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19 02110-1301 USA.
  20
  21 As a special exception, if you link this library with other files to
  22 produce an executable, this library does not by itself cause the
  23 resulting executable to be covered by the GNU General Public License.
  24 This exception does not however invalidate any other reasons why the
  25 executable file might be covered by the GNU General Public License. */
  26
  27 #ifndef __GCJ_JNI_MD_H__
  28 #define __GCJ_JNI_MD_H__
  29
  30 #include <gcj/libgcj-config.h>
  31
  32 #ifdef __GCJ_JNI_IMPL__
  33
  34 /* If __GCJ_JNI_IMPL__ is defined, then we assume that we're building
  35    libgcj itself, and we include headers which taint the namespace
  36    more than is acceptable for the ordinary JNI user.  */
  37 #include <gcj/javaprims.h>
  38 #include <gcj/array.h>
  39 #include <gnu/gcj/runtime/JNIWeakRef.h>
  40
  41 typedef gnu::gcj::runtime::JNIWeakRef *jweak;
  42
  43 typedef struct _Jv_JNIEnv JNIEnv;
  44 typedef struct _Jv_JavaVM JavaVM;
  45
  46 #define JNI_TRUE true
  47 #define JNI_FALSE false
  48
  49 /* We defined jobject and friends, so don't redefine them in jni.h.  */
  50 #define _CLASSPATH_VM_JNI_TYPES_DEFINED
  51
  52 /* We defined jmethodID and and jfieldID, so don't redefine them in
  53    jni.h.  */
  54 #define _CLASSPATH_VM_INTERNAL_TYPES_DEFINED
  55
  56 /* Contents of the JNIEnv; but only inside the implementation.  */
  57 #define _CLASSPATH_JNIENV_CONTENTS                                      \
  58   /* The current exception.  */                                         \
  59   jthrowable ex;                                                        \
  60                                                                         \
  61   /* The class of the current native method.  */                        \
  62   jclass klass;                                                         \
  63                                                                         \
  64   /* The chain of local frames.  */                                     \
  65   struct _Jv_JNI_LocalFrame *locals;                                    \
  66                                                                         \
  67   /* The bottom-most element of the chain, initialized with the env and \
  68      reused between non-nesting JNI calls.  */                          \
  69   struct _Jv_JNI_LocalFrame *bottom_locals;
  70
  71
  72 #else /* __GCJ_JNI_IMPL__ */
  73
  74 # ifdef __GNUC__
  75
  76 /* If we're using gcc, we can use a platform-independent scheme to get
  77    the right integer types.  FIXME: this is not always correct, for
  78    instance on the c4x it will be wrong -- it depends on whether
  79    QImode is 8 bits.  */
  80 typedef int    jbyte  __attribute__((__mode__(__QI__)));
  81 typedef int    jshort __attribute__((__mode__(__HI__)));
  82 typedef int    jint   __attribute__((__mode__(__SI__)));
  83 typedef int    jlong  __attribute__((__mode__(__DI__)));
  84 typedef int    jboolean __attribute__((__mode__(__QI__)));
  85 typedef unsigned short jchar __attribute__((__mode__(__HI__)));
  86 typedef float  jfloat;
  87 typedef double jdouble;
  88 typedef jint jsize;
  89
  90 # else /* __GNUC__ */
  91
  92 #  ifdef JV_HAVE_INTTYPES_H
  93
  94 /* If <inttypes.h> is available, we use it.  */
  95
  96 #   include <inttypes.h>
  97
  98 typedef int8_t jbyte;
  99 typedef int16_t jshort;
 100 typedef int32_t jint;
 101 typedef int64_t jlong;
 102 typedef float jfloat;
 103 typedef double jdouble;
 104 typedef jint jsize;
 105 typedef int8_t jboolean;
 106 typedef uint16_t jchar;
 107
 108 #  else /* JV_HAVE_INTTYPES_H */
 109
 110 /* For now, we require either gcc or <inttypes.h>.  If we did more
 111    work at configure time we could get around this, but right now it
 112    doesn't seem worth it.  */
 113 #   error jni.h not ported to this platform
 114
 115 #  endif /* JV_HAVE_INTTYPES_H */
 116
 117 # endif /* __GNUC__ */
 118
 119 #endif /* __GCJ_JNI_IMPL__ */
 120
 121
 122 /* Linkage and calling conventions. */
 123 #if defined (_WIN32) || defined (__WIN32__) || defined (WIN32)
 124
 125 #define JNIIMPORT        __declspec(dllimport)
 126 #define JNIEXPORT        __declspec(dllexport)
 127
 128 #define JNICALL          __stdcall
 129
 130 /* These defines apply to symbols in libgcj */
 131 #ifdef __GCJ_DLL__
 132 # ifdef __GCJ_JNI_IMPL__
 133 #  define _CLASSPATH_JNIIMPEXP JNIEXPORT
 134 # else
 135 #  define _CLASSPATH_JNIIMPEXP JNIIMPORT
 136 # endif /* ! __GCJ_JNI_IMPL__ */
 137 #else /* ! __GCJ_DLL__ */
 138 # define _CLASSPATH_JNIIMPEXP
 139 #endif /*  __GCJ_DLL__ */
 140
 141 #else /* !( _WIN32 || __WIN32__ || WIN32) */
 142
 143 #define JNIIMPORT
 144 #define JNIEXPORT
 145 #define JNICALL
 146 #define _CLASSPATH_JNIIMPEXP
 147
 148 #endif /* !( _WIN32 || __WIN32__ || WIN32) */
 149
 150
 151 #endif /* __GCJ_JNI_MD_H__ */