jni

package module

v0.0.0-...-b380472 Latest Latest Go to latest Published: Jun 20, 2020 License: BSD-3-Clause Imports: 7 Imported by: 0

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Repository

git.wow.st/whereswaldon/jni

README ¶

JNI

A JNI library cloned from github.com/tailscale/tailscale-android.

Documentation ¶

Index ¶

func CallIntMethod(e Env, obj Object, method MethodID, args ...Value) (int32, error)
func CallStaticIntMethod(e Env, cls Class, method MethodID, args ...Value) (int, error)
func CallStaticVoidMethod(e Env, cls Class, method MethodID, args ...Value) error
func CallVoidMethod(e Env, obj Object, method MethodID, args ...Value) error
func DeleteGlobalRef(e Env, obj Object)
func Do(vm JVM, f func(env Env) error) error
func GetByteArrayElements(e Env, jarr ByteArray) []byte
func GetStaticBooleanField(env Env, clazz Class, fieldID FieldID) bool
func GetStaticByteField(env Env, clazz Class, fieldID FieldID) byte
func GetStaticCharField(env Env, clazz Class, fieldID FieldID) byte
func GetStaticDoubleField(env Env, clazz Class, fieldID FieldID) float64
func GetStaticFloatField(env Env, clazz Class, fieldID FieldID) float32
func GetStaticIntField(env Env, clazz Class, fieldID FieldID) int32
func GetStaticLongField(env Env, clazz Class, fieldID FieldID) int64
func GetStaticShortField(env Env, clazz Class, fieldID FieldID) int16
func GoString(e Env, str String) string
func IsSameObject(e Env, ref1, ref2 Object) bool
type ByteArray
- func NewByteArray(e Env, content []byte) ByteArray
type Class
- func GetObjectClass(e Env, obj Object) Class
- func LoadClass(e Env, loader Object, class string) (Class, error)
type Env
- func EnvFor(envPtr uintptr) Env
type FieldID
- func GetStaticFieldID(e Env, cls Class, name, signature string) FieldID
type JVM
- func JVMFor(jvmPtr uintptr) JVM
type MethodID
- func GetMethodID(e Env, cls Class, name, signature string) MethodID
- func GetStaticMethodID(e Env, cls Class, name, signature string) MethodID
type Object
- func CallObjectMethod(e Env, obj Object, method MethodID, args ...Value) (Object, error)
- func CallStaticObjectMethod(e Env, cls Class, method MethodID, args ...Value) (Object, error)
- func ClassLoaderFor(e Env, obj Object) Object
- func GetStaticObjectField(env Env, clazz Class, fieldID FieldID) Object
- func NewGlobalRef(e Env, obj Object) Object
type String
- func JavaString(e Env, str string) String
type Value

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

func CallIntMethod ¶

func CallIntMethod(e Env, obj Object, method MethodID, args ...Value) (int32, error)

func CallStaticIntMethod ¶

func CallStaticIntMethod(e Env, cls Class, method MethodID, args ...Value) (int, error)

func CallStaticVoidMethod ¶

func CallStaticVoidMethod(e Env, cls Class, method MethodID, args ...Value) error

func CallVoidMethod ¶

func CallVoidMethod(e Env, obj Object, method MethodID, args ...Value) error

func DeleteGlobalRef ¶

func DeleteGlobalRef(e Env, obj Object)

func Do ¶

func Do(vm JVM, f func(env Env) error) error

Do invokes a function with a temporary JVM environment. The environment is not valid after the function returns.

func GetByteArrayElements ¶

func GetByteArrayElements(e Env, jarr ByteArray) []byte

GetByteArrayElements returns the contents of the array.

func GetStaticBooleanField ¶

func GetStaticBooleanField(env Env, clazz Class, fieldID FieldID) bool

GetStaticBooleanField looks up the value of a static field of type boolean. It panics if it is unable to find the field.

func GetStaticByteField ¶

func GetStaticByteField(env Env, clazz Class, fieldID FieldID) byte

GetStaticByteField looks up the value of a static field of type byte. It panics if it is unable to find the field.

func GetStaticCharField ¶

func GetStaticCharField(env Env, clazz Class, fieldID FieldID) byte

GetStaticCharField looks up the value of a static field of type char. It panics if it is unable to find the field.

func GetStaticDoubleField ¶

func GetStaticDoubleField(env Env, clazz Class, fieldID FieldID) float64

GetStaticDoubleField looks up the value of a static field of type double. It panics if it is unable to find the field.

func GetStaticFloatField ¶

func GetStaticFloatField(env Env, clazz Class, fieldID FieldID) float32

GetStaticFloatField looks up the value of a static field of type float. It panics if it is unable to find the field.

func GetStaticIntField ¶

func GetStaticIntField(env Env, clazz Class, fieldID FieldID) int32

GetStaticIntField looks up the value of a static field of type int. It panics if it is unable to find the field.

func GetStaticLongField ¶

func GetStaticLongField(env Env, clazz Class, fieldID FieldID) int64

GetStaticLongField looks up the value of a static field of type long. It panics if it is unable to find the field.

func GetStaticShortField ¶

func GetStaticShortField(env Env, clazz Class, fieldID FieldID) int16

GetStaticShortField looks up the value of a static field of type short. It panics if it is unable to find the field.

func GoString ¶

func GoString(e Env, str String) string

GoString converts the JVM jstring to a Go string.

func IsSameObject ¶

func IsSameObject(e Env, ref1, ref2 Object) bool

Types ¶

type ByteArray ¶

type ByteArray C.jbyteArray

func NewByteArray ¶

func NewByteArray(e Env, content []byte) ByteArray

NewByteArray allocates a Java byte array with the content. It panics if the allocation fails.

type Class ¶

type Class C.jclass

func GetObjectClass ¶

func GetObjectClass(e Env, obj Object) Class

GetObjectClass returns the Java Class for an Object.

func LoadClass ¶

func LoadClass(e Env, loader Object, class string) (Class, error)

LoadClass invokes the underlying ClassLoader's loadClass method and returns the class.

type Env ¶

type Env struct {
	// contains filtered or unexported fields
}

func EnvFor ¶

func EnvFor(envPtr uintptr) Env

type FieldID ¶

type FieldID C.jfieldID

func GetStaticFieldID ¶

func GetStaticFieldID(e Env, cls Class, name, signature string) FieldID

GetStaticFieldID returns the id for a static field. It panics if the field wasn't found.

type JVM ¶

type JVM struct {
	// contains filtered or unexported fields
}

func JVMFor ¶

func JVMFor(jvmPtr uintptr) JVM

type MethodID ¶

type MethodID C.jmethodID

func GetMethodID ¶

func GetMethodID(e Env, cls Class, name, signature string) MethodID

GetMethodID returns the id for a method. It panics if the method wasn't found.

func GetStaticMethodID ¶

func GetStaticMethodID(e Env, cls Class, name, signature string) MethodID

GetStaticMethodID returns the id for a static method. It panics if the method wasn't found.

type Object ¶

type Object C.jobject

func CallObjectMethod ¶

func CallObjectMethod(e Env, obj Object, method MethodID, args ...Value) (Object, error)

func CallStaticObjectMethod ¶

func CallStaticObjectMethod(e Env, cls Class, method MethodID, args ...Value) (Object, error)

func ClassLoaderFor ¶

func ClassLoaderFor(e Env, obj Object) Object

ClassLoader returns a reference to the Java ClassLoader associated with obj.

func GetStaticObjectField ¶

func GetStaticObjectField(env Env, clazz Class, fieldID FieldID) Object

GetStaticObjectField looks up the value of a static field of type Object. It panics if it is unable to find the field.

func NewGlobalRef ¶

func NewGlobalRef(e Env, obj Object) Object

type String ¶

type String C.jstring

func JavaString ¶

func JavaString(e Env, str string) String

JavaString converts the string to a JVM jstring.

type Value ¶

type Value uint64 // All JNI types fit into 64-bits.

Source Files ¶

View all Source files

jni.go

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