com.sun.jna.Function.invokePointer()方法的使用及代码示例

x33g5p2x  于2022-01-19 转载在 其他  
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本文整理了Java中com.sun.jna.Function.invokePointer()方法的一些代码示例,展示了Function.invokePointer()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。Function.invokePointer()方法的具体详情如下:
包路径:com.sun.jna.Function
类名称:Function
方法名:invokePointer

Function.invokePointer介绍

[英]Convenience method for #invoke(Class,Object[]).
[中]方便的#invoke方法(类,对象[])。

代码示例

代码示例来源:origin: net.java.dev.jna/jna

/**
 * Call the native function being represented by this object
 *
 * @param   callFlags calling convention to be used
 * @param    args
 *            Arguments to pass to the native function
 * @param   wide whether the native string uses <code>wchar_t</code>;
 * if false, <code>char</code> is assumed
 * @return    The value returned by the target native function, as a String
 */
private String invokeString(int callFlags, Object[] args, boolean wide) {
  Pointer ptr = invokePointer(callFlags, args);
  String s = null;
  if (ptr != null) {
    if (wide) {
      s = ptr.getWideString(0);
    }
    else {
      s = ptr.getString(0, encoding);
    }
  }
  return s;
}

代码示例来源:origin: net.java.dev.jna/jna

return invokePointer(callFlags, args);
} else if (Structure.class.isAssignableFrom(returnType)) {
  if (Structure.ByValue.class.isAssignableFrom(returnType)) {
    result = s;
  } else {
    result = invokePointer(callFlags, args);
    if (result != null) {
      Structure s = Structure.newInstance((Class<? extends Structure>)returnType, (Pointer)result);
  result = invokePointer(callFlags, args);
  if (result != null) {
    result = CallbackReference.getCallback(returnType, (Pointer)result);
  Pointer p = invokePointer(callFlags, args);
  if (p != null) {
    result = p.getStringArray(0, encoding);
  Pointer p = invokePointer(callFlags, args);
  if (p != null) {
    String[] arr = p.getWideStringArray(0);
  Pointer p = invokePointer(callFlags, args);
  if (p != null) {
    result = p.getPointerArray(0);

代码示例来源:origin: org.netbeans.api/org-jruby

public final IRubyObject invoke(Ruby runtime, Function function, Object[] args) {
  return new JNAMemoryPointer(runtime, function.invokePointer(args));
}
public static final FunctionInvoker INSTANCE = new PointerInvoker();

代码示例来源:origin: org.elasticsearch/jna

/**
 * Call the native function being represented by this object
 *
 * @param   callFlags calling convention to be used
 * @param    args
 *            Arguments to pass to the native function
 * @param   wide whether the native string uses <code>wchar_t</code>;
 * if false, <code>char</code> is assumed
 * @return    The value returned by the target native function, as a String
 */
private String invokeString(int callFlags, Object[] args, boolean wide) {
  Pointer ptr = invokePointer(callFlags, args);
  String s = null;
  if (ptr != null) {
    if (wide) {
      s = ptr.getWideString(0);
    }
    else {
      s = ptr.getString(0, encoding);
    }
  }
  return s;
}

代码示例来源:origin: org.elasticsearch/jna

return invokePointer(callFlags, args);
} else if (Structure.class.isAssignableFrom(returnType)) {
  if (Structure.ByValue.class.isAssignableFrom(returnType)) {
    result = s;
  } else {
    result = invokePointer(callFlags, args);
    if (result != null) {
      Structure s = Structure.newInstance(returnType, (Pointer)result);
  result = invokePointer(callFlags, args);
  if (result != null) {
    result = CallbackReference.getCallback(returnType, (Pointer)result);
  Pointer p = invokePointer(callFlags, args);
  if (p != null) {
    result = p.getStringArray(0, encoding);
  Pointer p = invokePointer(callFlags, args);
  if (p != null) {
    String[] arr = p.getWideStringArray(0);
  Pointer p = invokePointer(callFlags, args);
  if (p != null) {
    result = p.getPointerArray(0);

代码示例来源:origin: com.sun.jna/jna

result = invokePointer(callingConvention, args);
  if (result != null) {
    Structure s = Structure.newInstance(returnType);
result = invokePointer(callingConvention, args);
if (result != null) {
  result = CallbackReference.getCallback(returnType, (Pointer)result);

代码示例来源:origin: org.netbeans.api/org-jruby

public final IRubyObject invoke(Ruby runtime, Function function, Object[] args) {
  Pointer address = function.invokePointer(args);
  if (address == null) {
    return runtime.getNil();
  }
  int len = (int) address.indexOf(0, (byte) 0);
  if (len == 0) {
    return RubyString.newEmptyString(runtime);
  }
  ByteList bl = new ByteList(len);
  bl.length(len);
  address.read(0, bl.unsafeBytes(), bl.begin(), len);
  
  return RubyString.newString(runtime, bl);
}
public static final FunctionInvoker INSTANCE = new StringInvoker();

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