jni_types.h File Reference


Detailed Description

Types used in JNI and OPEN interfaces.

For the most part JNI types are defined by Sun specification on Java Native Interface (JNI). See specification for details.


Classes

union  jvalue
 This union used to pass arguments to native functions when Call<type>MethodA and CallStatic<type>MethodA functions are used. More...
struct  JNINativeMethod
 Structure which describes a generic pointer to a native function. More...

Defines

#define JNIEXPORT
 Function attribute to make native JNI function exportable.
#define JNIIMPORT
 Function attribute used when building VM from sources.
#define JNICALL
 Function attribute to specify calling conventions that should be used for native JNI functions.
#define JNI_FALSE   0
 Constant which defines boolean truth in native Java functions.
#define JNI_TRUE   1
 Constant which defines boolean false in native Java functions.
#define JNI_OK   0
 Constant which describes success when returned by JNI API functions.
#define JNI_ERR   (-1)
 Constant which describes an error when returned by JNI API functions.
#define JNI_EDETACHED   (-2)
 Constant which describes a deatached thread condition when returned by JNI API functions.
#define JNI_EVERSION   (-3)
 Constant which describes wrong JNI interface verions when returned by JNI API functions.
#define JNI_ENOMEM   (-4)
 Constant which describes out of memory condition when returned by JNI API functions.
#define JNI_EEXIST   (-5)
 Constant which means that a limited resource already exists when returned by JNI API functions.
#define JNI_EINVAL   (-6)
 Constant which means that an illegal argument value was passed to a JNI function.
#define JNI_COMMIT   1
 Constant which means that an array region should be committed into memory.
#define JNI_ABORT   2
 Constant which means that an array region should be discarded.

Typedefs

typedef signed long long jlong
 Signed 64-bit long type equivalent to Java "long" type.
typedef unsigned char jboolean
 Unsigned 8-bit primitive boolean type equivalent to Java "boolean" type.
typedef signed char jbyte
 Signed 8-bit primitive byte type equivalent to Java "byte" type.
typedef unsigned short jchar
 Unsigned 16-bit primitive char type equivalent to Java "char" type.
typedef signed short jshort
 Signed 16-bit primitive short type equivalent to Java "short" type.
typedef signed int jint
 Signed 32-bit primitive integer type equivalent to Java "int" type.
typedef float jfloat
 Signed 32-bit primitive floating point type equivalent to Java "float" type.
typedef double jdouble
 Signed 64-bit primitive floating point type equivalent to Java "double" type.
typedef jint jsize
 Signed 32-bit primitive integer type used to describe sizes.
typedef _jobjectjobject
 Reference type which describes a general Java object in native function.
typedef jobject jclass
 Reference type which describes a java.lang.Class instance object in native function.
typedef jobject jstring
 Reference type which describes a java.lang.String instance object in native function.
typedef jobject jarray
 Reference type which describes a generic array instance object in native function.
typedef jarray jobjectArray
 Reference type which describes an array of java.lang.Object instances in native function.
typedef jarray jbooleanArray
 Reference type which describes an array of booleans in native function.
typedef jarray jbyteArray
 Reference type which describes an array of bytes type in native function.
typedef jarray jcharArray
 Reference type which describes an array of chars type in native function.
typedef jarray jshortArray
 Reference type which describes an array of shorts type in native function.
typedef jarray jintArray
 Reference type which describes an array of ints type in native function.
typedef jarray jlongArray
 Reference type which describes an array of longs type in native function.
typedef jarray jfloatArray
 Reference type which describes an array of floats type in native function.
typedef jarray jdoubleArray
 Reference type which describes an array of doubles type in native function.
typedef jobject jthrowable
 Reference type which describes a java.lang.Throwable instance object in native function.
typedef jobject jweak
 Reference type which describes a weak reference to a general object.
typedef _jfieldIDjfieldID
 Type which describes an identfier of a field inside of class.
typedef _jmethodID * jmethodID
 Type which describes an identfier of a method inside of class.
typedef JNINativeInterface_JNIEnv
 JNI API interface table type for usage in C.
typedef JNIInvokeInterface_JavaVM
 Java VM interface table type for usage in C.


Define Documentation

#define JNIEXPORT

Function attribute to make native JNI function exportable.

#define JNIIMPORT

Function attribute used when building VM from sources.

#define JNICALL

Function attribute to specify calling conventions that should be used for native JNI functions.

#define JNI_FALSE   0

Constant which defines boolean truth in native Java functions.

It is equivalent to Java constant "true"

#define JNI_TRUE   1

Constant which defines boolean false in native Java functions.

It is equivalent to Java constant "false"

#define JNI_OK   0

Constant which describes success when returned by JNI API functions.

#define JNI_ERR   (-1)

Constant which describes an error when returned by JNI API functions.

#define JNI_EDETACHED   (-2)

Constant which describes a deatached thread condition when returned by JNI API functions.

#define JNI_EVERSION   (-3)

Constant which describes wrong JNI interface verions when returned by JNI API functions.

#define JNI_ENOMEM   (-4)

Constant which describes out of memory condition when returned by JNI API functions.

#define JNI_EEXIST   (-5)

Constant which means that a limited resource already exists when returned by JNI API functions.

#define JNI_EINVAL   (-6)

Constant which means that an illegal argument value was passed to a JNI function.

#define JNI_COMMIT   1

Constant which means that an array region should be committed into memory.

Used in Release<primitive type>ArrayElements functions

#define JNI_ABORT   2

Constant which means that an array region should be discarded.

Used in Release<primitive type>ArrayElements functions


Typedef Documentation

jlong

Signed 64-bit long type equivalent to Java "long" type.

typedef unsigned char jboolean

Unsigned 8-bit primitive boolean type equivalent to Java "boolean" type.

See specification for details.

typedef signed char jbyte

Signed 8-bit primitive byte type equivalent to Java "byte" type.

See specification for details.

typedef unsigned short jchar

Unsigned 16-bit primitive char type equivalent to Java "char" type.

See specification for details.

typedef signed short jshort

Signed 16-bit primitive short type equivalent to Java "short" type.

See specification for details.

typedef signed int jint

Signed 32-bit primitive integer type equivalent to Java "int" type.

See specification for details.

typedef float jfloat

Signed 32-bit primitive floating point type equivalent to Java "float" type.

See specification for details.

typedef double jdouble

Signed 64-bit primitive floating point type equivalent to Java "double" type.

See specification for details.

typedef jint jsize

Signed 32-bit primitive integer type used to describe sizes.

See specification for details.

typedef struct _jobject* jobject

Reference type which describes a general Java object in native function.

See specification for details.

typedef jobject jclass

Reference type which describes a java.lang.Class instance object in native function.

See specification for details.

typedef jobject jstring

Reference type which describes a java.lang.String instance object in native function.

See specification for details.

typedef jobject jarray

Reference type which describes a generic array instance object in native function.

See specification for details.

typedef jarray jobjectArray

Reference type which describes an array of java.lang.Object instances in native function.

See specification for details.

typedef jarray jbooleanArray

Reference type which describes an array of booleans in native function.

See specification for details.

typedef jarray jbyteArray

Reference type which describes an array of bytes type in native function.

See specification for details.

typedef jarray jcharArray

Reference type which describes an array of chars type in native function.

See specification for details.

typedef jarray jshortArray

Reference type which describes an array of shorts type in native function.

See specification for details.

typedef jarray jintArray

Reference type which describes an array of ints type in native function.

See specification for details.

typedef jarray jlongArray

Reference type which describes an array of longs type in native function.

See specification for details.

typedef jarray jfloatArray

Reference type which describes an array of floats type in native function.

See specification for details.

typedef jarray jdoubleArray

Reference type which describes an array of doubles type in native function.

See specification for details.

typedef jobject jthrowable

Reference type which describes a java.lang.Throwable instance object in native function.

See specification for details.

typedef jobject jweak

Reference type which describes a weak reference to a general object.

This type is the same as jobject but the reference held in it is weak, so if the referred object is weakly reacheable, it may be garbage collected to VM.

typedef struct _jfieldID* jfieldID

Type which describes an identfier of a field inside of class.

This type together with a jclass reference uniquily identifies a field inside of the class described by jclass.

typedef struct _jmethodID* jmethodID

Type which describes an identfier of a method inside of class.

This type together with a jclass reference uniquily identifies a method inside of the class described by jclass.

typedef struct JNINativeInterface_* JNIEnv

JNI API interface table type for usage in C.

See specification for details.

typedef struct JNIInvokeInterface_* JavaVM

Java VM interface table type for usage in C.

See specification for details


Genereated on Tue Mar 11 19:25:57 2008 by Doxygen.

(c) Copyright 2005, 2008 The Apache Software Foundation or its licensors, as applicable.