final class WriteGlobalVarFunc_Jaccall_J extends PointerWriteGlobalVarFunc {
private static final long JNI_METHOD_ID = JNI.GetMethodID(WriteGlobalVarFunc.class, "$", "()I");
private final WriteGlobalVarFunc function;
WriteGlobalVarFunc_Jaccall_J(final WriteGlobalVarFunc function) {
super(JNI.ffi_closure(FFI_CIF, function, JNI_METHOD_ID));
this.function = function;
}
@Override
public void $(final int var) {
this.function.$(var);
}
}
@Generated("org.freedesktop.jaccall.compiletime.functor.FunctionPointerGenerator")
final class UnsignedCharFunc_Jaccall_J extends PointerUnsignedCharFunc {
private static final long JNI_METHOD_ID = JNI.GetMethodID(UnsignedCharFunc.class, "$", "(B)B");
private final UnsignedCharFunc function;
public UnsignedCharFunc_Jaccall_J(final UnsignedCharFunc function) {
super(JNI.ffi_closure(FFI_CIF, function, JNI_METHOD_ID));
this.function = function;
}
@Override
public byte $(final byte value) {
return this.function.$(value);
}
}
public UnsignedCharFunc_Jaccall_J(final UnsignedCharFunc function) {
super(JNI.ffi_closure(FFI_CIF, function, JNI_METHOD_ID));
this.function = function;
}
static {
JNI.linkFuncPtr(UnionFunc_Jaccall_C.class, "_$", 4, "(JJIF)J", FFI_CIF);
}
public final class JNI {
private static final Logger LOGGER = Logger.getLogger("jaccall");
// TODO add android
private static final String[] ARCHS = {
"linux-aarch64",
"linux-armv7hf",
"linux-armv7sf",
"linux-armv6hf",
"linux-x86_64",
"linux-i686",
// last resort
"native"
};
private static final String LIB = "libjaccall.so";
static {
// there is no real good or correct way to determine the userland+os+architecture in Java :(
if (ConfigVariables.JACCALL_ARCH == null) {
LOGGER.info(
String.format(
"Jaccall might not work correctly, arch not specified by JACCALL_ARCH environment variable, please specify it. Supported values are: %s",
Arrays.toString(ARCHS)));
Map<String, LinkageError> failures = new HashMap<>();
boolean libLoaded = false;
String loadedArch = "";
for (String arch : ARCHS) {
try {
loadLibrary(arch);
} catch (LinkageError e) {
LOGGER.info(String.format("Loading lib for arch %s failed. Trying next arch.", arch));
failures.put(arch, e);
continue;
}
loadedArch = arch;
libLoaded = true;
break;
}
if (!libLoaded) {
for (Map.Entry<String, LinkageError> errorEntry : failures.entrySet()) {
System.err.println("Could not load lib for arch " + errorEntry.getKey());
errorEntry.getValue().printStackTrace();
}
throw new Error("Failed to load any of the libs for ARCHS: " + Arrays.toString(ARCHS));
} else {
LOGGER.info(String.format("Successfully loaded lib for arch %s.", loadedArch));
}
} else {
loadLibrary(ConfigVariables.JACCALL_ARCH);
}
}
private static void loadLibrary(String arch) throws LinkageError {
try {
final InputStream libStream =
JNI.class.getClassLoader().getResourceAsStream(arch + "/" + LIB);
if (libStream == null) {
// lib not found
throw new LinkageError(String.format("Lib for arch %s not found.", arch));
}
final File tempFile = File.createTempFile(LIB, null);
tempFile.deleteOnExit();
unpack(libStream, tempFile);
System.load(tempFile.getAbsolutePath());
} catch (IOException e) {
throw new Error(e);
}
}
private static void unpack(final InputStream libStream, final File tempFile) throws IOException {
final FileOutputStream fos = new FileOutputStream(tempFile);
final byte[] buffer = new byte[4096];
int read;
while ((read = libStream.read(buffer)) != -1) {
fos.write(buffer, 0, read);
}
fos.close();
libStream.close();
}
private JNI() {}
/*
* JNI ->
*/
public static native ByteBuffer wrap(long address, @Nonnegative int size);
public static native long unwrap(@Nonnull Buffer byteBuffer);
public static native long NewGlobalRef(@Nonnull final Object object);
public static native void DeleteGlobalRef(final long object);
public static native long GetMethodID(
final Class<?> clazz, final String methodName, final String jniSignature);
public static native Object toObject(final long jobject);
/*
* <- JNI
*/
/*
* std ->
*/
public static native long realloc(long address, @Nonnegative int size);
public static native long malloc(@Nonnegative int size);
public static native long calloc(@Nonnegative int nmemb, @Nonnegative int size);
public static native void free(long address);
public static native int sizeOfPointer();
public static native int sizeOfCLong();
public static final int CHAR_ALIGNMENT = JNI.charAlignment();
private static native int charAlignment();
public static final int SHORT_ALIGNMENT = JNI.shortAlignment();
private static native int shortAlignment();
public static final int INT_ALIGNMENT = JNI.intAlignment();
private static native int intAlignment();
public static final int LONG_ALIGNMENT = JNI.longAlignment();
private static native int longAlignment();
public static final int LONG_LONG_ALIGNMENT = JNI.longLongAlignment();
private static native int longLongAlignment();
public static final int POINTER_ALIGNMENT = JNI.pointerAlignment();
private static native int pointerAlignment();
public static final int FLOAT_ALIGNMENT = JNI.floatAlignment();
private static native int floatAlignment();
public static final int DOUBLE_ALIGNMENT = JNI.doubleAlignment();
private static native int doubleAlignment();
/*
* <- std
*/
/*
* FFI ->
*/
public static final long FFI_TYPE_VOID = ffi_type_void();
private static native long ffi_type_void();
public static final long FFI_TYPE_SINT8 = ffi_type_sint8();
private static native long ffi_type_sint8();
public static final long FFI_TYPE_UINT8 = ffi_type_uint8();
private static native long ffi_type_uint8();
public static final long FFI_TYPE_SINT16 = ffi_type_sint16();
private static native long ffi_type_sint16();
public static final long FFI_TYPE_UINT16 = ffi_type_uint16();
private static native long ffi_type_uint16();
public static final long FFI_TYPE_SINT32 = ffi_type_sint32();
private static native long ffi_type_sint32();
public static final long FFI_TYPE_UINT32 = ffi_type_uint32();
private static native long ffi_type_uint32();
public static final long FFI_TYPE_SLONG = ffi_type_slong();
private static native long ffi_type_slong();
public static final long FFI_TYPE_ULONG = ffi_type_ulong();
private static native long ffi_type_ulong();
public static final long FFI_TYPE_SINT64 = ffi_type_sint64();
private static native long ffi_type_sint64();
public static final long FFI_TYPE_UINT64 = ffi_type_uint64();
private static native long ffi_type_uint64();
public static final long FFI_TYPE_FLOAT = ffi_type_float();
private static native long ffi_type_float();
public static final long FFI_TYPE_DOUBLE = ffi_type_double();
private static native long ffi_type_double();
public static final long FFI_TYPE_POINTER = ffi_type_pointer();
private static native long ffi_type_pointer();
public static native long ffi_type_struct(long... ffiTypes);
public static native long ffi_type_union(long... ffiTypes);
@Nonnegative
public static native int ffi_type_struct_size(long ffiStructType);
public static native long ffi_callInterface(long return_type, long... arg_types);
public static native long ffi_closure(
final long ffiCif, @Nonnull final Object function, final long jniMethodId);
public static native void ffi_closure_free(final long address);
/*
* <- ffi
*/
/*
* linker ->
*/
static native void link(
@Nonnull String library, /* library path */
@Nonnull Class<?> header, /*class with native methods*/
@Nonnull String[] symbols, /*method names*/
@Nonnull byte[] argumentSizes, /*number of arguments for each method*/
@Nonnull String[] jniSignatures, /*jni method signatures*/
@Nonnull long[] ffiCallInterfaces /*array of ffi type pointers*/);
public static native void linkFuncPtr(
@Nonnull Class<?> wrapper, /*class with native method*/
@Nonnull String symbol, /*method name*/
@Nonnegative int argumentSize, /*number of arguments for the method*/
@Nonnull String jniSignature, /*jni method signature*/
long ffiCallInterface /*ffi call interface*/);
/*
* <- linker
*/
/*
* raw io ->
*/
public static native byte readByte(final long address, final int index);
public static native void writeByte(final long address, final int index, final byte b);
public static native void writeBytes(final long address, final byte[] val);
public static native long readCLong(final long address, final int index);
public static native void writeCLong(final long address, final int index, final long l);
public static native double readDouble(final long address, final int index);
public static native void writeDouble(final long address, final int index, final double v);
public static native void writeDoubles(final long address, final double[] val);
public static native float readFloat(final long address, final int index);
public static native void writeFloat(final long address, final int index, final float v);
public static native void writeFloats(final long address, final float[] val);
public static native int readInt(final long address, final int index);
public static native void writeInt(final long address, final int index, final int i);
public static native void writeInts(final long address, final int[] val);
public static native long readLong(final long address, final int index);
public static native void writeLong(final long address, final int index, final long val);
public static native void writeLongs(final long address, final long[] val);
public static native long readPointer(final long address, final int index);
public static native void writePointer(final long address, final int index, final long address1);
public static native short readShort(final long address, final int index);
public static native void writeShort(final long address, final int index, final short i);
public static native void writeShorts(final long address, final short[] val);
public static native String readString(final long address, final int index);
public static native void writeString(final long address, final int index, final String val);
public static native void writeStruct(
final long targetAddress, final long sourceAddress, final int size);
/*
* <- raw io
*/
}
WriteGlobalVarFunc_Jaccall_J(final WriteGlobalVarFunc function) {
super(JNI.ffi_closure(FFI_CIF, function, JNI_METHOD_ID));
this.function = function;
}