本文整理了Java中com.sun.jna.Native.getNativeSize()方法的一些代码示例，展示了Native.getNativeSize()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Native.getNativeSize()方法的具体详情如下：
包路径：com.sun.jna.Native
类名称：Native
方法名：getNativeSize

Native.getNativeSize介绍

[英]Returns the native size for a given Java class. Structures are assumed to be struct pointers unless they implement Structure.ByValue.
[中]返回给定Java类的本机大小。结构被假定为struct指针，除非它们实现了结构。ByValue。

代码示例

代码示例来源：origin: net.java.dev.jna/jna

/** Return the native size of the given Java type, from the perspective of
 * this Structure.
 * @param nativeType field type to examine
 * @param value instance of the field type
 * @return native size (in bytes) of the requested field type
 */
protected int getNativeSize(Class<?> nativeType, Object value) {
  return Native.getNativeSize(nativeType, value);
}

代码示例来源：origin: net.java.dev.jna/jna

/**
 * @param cls The Java class
 * @return {@code true} whether the given class is supported as a native argument type.
 */
public static boolean isSupportedNativeType(Class<?> cls) {
  if (Structure.class.isAssignableFrom(cls)) {
    return true;
  }
  try {
    return getNativeSize(cls) != 0;
  }
  catch(IllegalArgumentException e) {
    return false;
  }
}

代码示例来源：origin: net.java.dev.jna/jna

public NativeMappedArray(NativeMapped[] arg) {
  super(Native.getNativeSize(arg.getClass(), arg));
  this.original = arg;
  setValue(0, original, original.getClass());
}
@Override

代码示例来源：origin: net.java.dev.jna/jna

/**
 * @param type The Java class for which the native size is to be determined
 * @param value an instance of said class (if available)
 * @return the native size of the given class, in bytes.
 * For use with arrays.
 */
public static int getNativeSize(Class<?> type, Object value) {
  if (type.isArray()) {
    int len = Array.getLength(value);
    if (len > 0) {
      Object o = Array.get(value, 0);
      return len * getNativeSize(type.getComponentType(), o);
    }
    // Don't process zero-length arrays
    throw new IllegalArgumentException("Arrays of length zero not allowed: " + type);
  }
  if (Structure.class.isAssignableFrom(type)
    && !Structure.ByReference.class.isAssignableFrom(type)) {
    return Structure.size((Class<Structure>) type, (Structure)value);
  }
  try {
    return getNativeSize(type);
  }
  catch(IllegalArgumentException e) {
    throw new IllegalArgumentException("The type \"" + type.getName()
                      + "\" is not supported: "
                      + e.getMessage());
  }
}

代码示例来源：origin: net.java.dev.jna/jna

/** Override this to handle any custom class mappings.
 * @param cls Java class of a parameter
 * @return number of native bytes used for this class on the stack
 */
protected int getArgumentNativeStackSize(Class<?> cls) {
  if (NativeMapped.class.isAssignableFrom(cls)) {
    cls = NativeMappedConverter.getInstance(cls).nativeType();
  }
  if (cls.isArray()) {
    return Native.POINTER_SIZE;
  }
  try {
    return Native.getNativeSize(cls);
  } catch(IllegalArgumentException e) {
    throw new IllegalArgumentException("Unknown native stack allocation size for " + cls);
  }
}

代码示例来源：origin: net.java.dev.jna/jna

value = tc.toNative(value, new ToNativeContext());
int size = Native.getNativeSize(type, value);
if (type.isPrimitive() || Long.class == type || Integer.class == type
  || Short.class == type || Character.class == type

代码示例来源：origin: net.java.dev.jna/jna-platform

public static int sizeOf()
{
  return Native.getNativeSize(FILE_COMPRESSION_INFO.class, null);
}

代码示例来源：origin: net.java.dev.jna/jna-platform

/**
 * Helper function to calculate the size of an ACE for a given PSID size
 * @param sidLength length of the sid
 * @return size of the ACE
 */
public static int getAceSize(int sidLength) {
  return Native.getNativeSize(ACCESS_ALLOWED_ACE.class, null)
      + sidLength
      - DWORD.SIZE;
}

代码示例来源：origin: org.elasticsearch/jna

/** Return the native size of the given Java type, from the perspective of
 * this Structure.
 * @param nativeType field type to examine
 * @param value instance of the field type
 * @return native size (in bytes) of the requested field type
 */
protected int getNativeSize(Class<?> nativeType, Object value) {
  return Native.getNativeSize(nativeType, value);
}

代码示例来源：origin: EtiennePerot/fuse-jna

public static final int size(@SuppressWarnings("rawtypes") final Class cls)
  {
    return Native.getNativeSize(cls);
  }
}

代码示例来源：origin: net.java.dev.jna/jna-platform

public static int sizeOf()
{
  return Native.getNativeSize(FILE_ATTRIBUTE_TAG_INFO.class, null);
}

代码示例来源：origin: net.java.dev.jna/jna-platform

public static int sizeOf()
{
  return Native.getNativeSize(FILE_DISPOSITION_INFO.class, null);
}

代码示例来源：origin: net.java.dev.jna/jna-platform

public static int sizeOf()
{
  return Native.getNativeSize(FILE_BASIC_INFO.class, null);
}

代码示例来源：origin: net.java.dev.jna/jna-platform

public static int sizeOf()
{
  return Native.getNativeSize(FILE_STANDARD_INFO.class, null);
}

代码示例来源：origin: net.java.dev.jna/jna-platform

public static int sizeOf()
{
  return Native.getNativeSize(FILE_ID_INFO.class, null);
}

代码示例来源：origin: net.java.dev.jna/jna-platform

public static int sizeOf() {
  return Native.getNativeSize(WIN32_FIND_DATA.class, null);
}

代码示例来源：origin: net.java.dev.jna/jna

NativeMapped[] array = (NativeMapped[])result;
NativeMappedConverter tc = NativeMappedConverter.getInstance(cls);
int size = Native.getNativeSize(result.getClass(), result) / array.length;
for (int i=0;i < array.length;i++) {
  Object value = getValue(offset + size*i, tc.nativeType(), array[i]);

代码示例来源：origin: net.java.dev.jna/jna

NativeMappedConverter tc = NativeMappedConverter.getInstance(cls);
Class<?> nativeType = tc.nativeType();
int size = Native.getNativeSize(value.getClass(), value) / buf.length;
for (int i=0;i < buf.length;i++) {
  Object element = tc.toNative(buf[i], new ToNativeContext());

代码示例来源：origin: org.elasticsearch/jna

public NativeMappedArray(NativeMapped[] arg) {
  super(Native.getNativeSize(arg.getClass(), arg));
  this.original = arg;
  setValue(0, original, original.getClass());
}
@Override

代码示例来源：origin: com.dukescript.presenters/webkit

public Pointer call(
    Pointer jsContextRef, Pointer jsFunction, Pointer thisObject,
    int argumentCount, PointerByReference ref, Pointer exception
  ) throws Exception {
    JSC jsc = shell.jsc();
    int size = Native.getNativeSize(Pointer.class);
    Object[] args = new Object[argumentCount];
    for (int i = 0, offset = 0; i < argumentCount; i++, offset += size) {
      args[i] = convertToJava(jsc, method.getParameterTypes()[i], ref.getPointer().getPointer(offset));
    }
    return convertFromJava(method.invoke(vm, args))[0];
  }
}