本文整理了Java中com.sun.jna.Memory.share()方法的一些代码示例，展示了Memory.share()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。Memory.share()方法的具体详情如下：
包路径：com.sun.jna.Memory
类名称：Memory
方法名：share

Memory.share介绍

[英]Provide a view of this memory using the given offset as the base address. The returned Pointer will have a size equal to that of the original minus the offset.
[中]使用给定的偏移量作为基址，提供该内存的视图。返回的指针的大小将等于原始指针的大小减去偏移量。

代码示例

代码示例来源：origin: net.java.dev.jna/jna

/** Provide a view of this memory using the given offset as the base address.  The
 * returned {@link Pointer} will have a size equal to that of the original
 * minus the offset.
 * @throws IndexOutOfBoundsException if the requested memory is outside
 * the allocated bounds.
 */
@Override
public Pointer share(long offset) {
  return share(offset, size() - offset);
}

代码示例来源：origin: net.java.dev.jna/jna

/** Provide a view onto this structure with the given alignment.
 * @param byteBoundary Align memory to this number of bytes; should be a
 * power of two.
 * @throws IndexOutOfBoundsException if the requested alignment can
 * not be met.
 * @throws IllegalArgumentException if the requested alignment is not
 * a positive power of two.
 */
public Memory align(int byteBoundary) {
  if (byteBoundary <= 0) {
    throw new IllegalArgumentException("Byte boundary must be positive: " + byteBoundary);
  }
  for (int i=0;i < 32;i++) {
    if (byteBoundary == (1<<i)) {
      long mask = ~((long)byteBoundary - 1);
      if ((peer & mask) != peer) {
        long newPeer = (peer + byteBoundary - 1) & mask;
        long newSize = peer + size - newPeer;
        if (newSize <= 0) {
          throw new IllegalArgumentException("Insufficient memory to align to the requested boundary");
        }
        return (Memory)share(newPeer - peer, newSize);
      }
      return this;
    }
  }
  throw new IllegalArgumentException("Byte boundary must be a power of two");
}

代码示例来源：origin: stackoverflow.com

Memory data = ...;
// mzH = *(MZHeader*) dPtr;
MZHeader mzH = new MZHeader(data);
mzH.read(); // or put this in the MZHeader(Pointer) ctor
// peH = *(PE_Header*)&dPtr[mzH.offsetToPE];
PE_Header peH = new PE_Header(data.share(mzH.offsetToPE));
peH.read(); // or put this in the PE_Header(Pointer) ctor
// peXH = *(PE_ExtHeader*)&dPtr[mzH.offsetToPE + sizeof(PE_Header)];
PE_ExtHeader peXH = new PE_ExtHeader(data.share(mzH.offsetToPE + peH.size()));
peXH.read(); // or put this in the PE_ExtHeader(Pointer) actor

代码示例来源：origin: com.sun.jna/jna

/** Provide a view onto this structure with the given alignment. 
 * @param byteBoundary Align memory to this number of bytes; should be a
 * power of two.
 * @throws IndexOutOfBoundsException if the requested alignment can
 * not be met.
 * @throws IllegalArgumentException if the requested alignment is not
 * a positive power of two.
 */
public Pointer align(int byteBoundary) {
  if (byteBoundary <= 0) {
    throw new IllegalArgumentException("Byte boundary must be positive: " + byteBoundary);
  }
  long mask = ~((long)byteBoundary - 1);
  if ((peer & ~mask) != peer) {
    long newPeer = (peer + ~mask) & mask;
    return share(newPeer - peer, peer + size - newPeer);
  }
  return this;
}

代码示例来源：origin: com.squareup.jnagmp/jnagmp

private Gmp() {
 int offset = 0;
 for (int i = 0; i < MAX_OPERANDS; ++i) {
  this.sharedOperands[i] = new mpz_t(sharedMem.share(offset, mpz_t.SIZE));
  __gmpz_init(sharedOperands[i]);
  offset += mpz_t.SIZE;
 }
 this.countPtr = sharedMem.share(offset, Native.SIZE_T_SIZE);
 offset += Native.SIZE_T_SIZE;
 assert offset == SHARED_MEM_SIZE;
}

代码示例来源：origin: org.elasticsearch/jna

/** Provide a view of this memory using the given offset as the base address.  The
 * returned {@link Pointer} will have a size equal to that of the original
 * minus the offset.
 * @throws IndexOutOfBoundsException if the requested memory is outside
 * the allocated bounds.
 */
@Override
public Pointer share(long offset) {
  return share(offset, size() - offset);
}

代码示例来源：origin: com.sun.jna/jna

/** Provide a view onto this structure from the given offset.  The
 * returned {@link Pointer} will have the same size as the original,
 * reduced by the offset.
 * @throws IndexOutOfBoundsException if the requested memory is outside
 * the allocated bounds. 
 */
public Pointer share(long offset) {
  return share(offset, getSize() - offset);
}

代码示例来源：origin: square/jna-gmp

private Gmp() {
 int offset = 0;
 for (int i = 0; i < MAX_OPERANDS; ++i) {
  this.sharedOperands[i] = new mpz_t(sharedMem.share(offset, mpz_t.SIZE));
  __gmpz_init(sharedOperands[i]);
  offset += mpz_t.SIZE;
 }
 this.countPtr = sharedMem.share(offset, Native.SIZE_T_SIZE);
 offset += Native.SIZE_T_SIZE;
 assert offset == SHARED_MEM_SIZE;
}

代码示例来源：origin: org.elasticsearch/jna

/** Provide a view onto this structure with the given alignment.
 * @param byteBoundary Align memory to this number of bytes; should be a
 * power of two.
 * @throws IndexOutOfBoundsException if the requested alignment can
 * not be met.
 * @throws IllegalArgumentException if the requested alignment is not
 * a positive power of two.
 */
public Memory align(int byteBoundary) {
  if (byteBoundary <= 0) {
    throw new IllegalArgumentException("Byte boundary must be positive: " + byteBoundary);
  }
  for (int i=0;i < 32;i++) {
    if (byteBoundary == (1<<i)) {
      long mask = ~((long)byteBoundary - 1);
      if ((peer & mask) != peer) {
        long newPeer = (peer + byteBoundary - 1) & mask;
        long newSize = peer + size - newPeer;
        if (newSize <= 0) {
          throw new IllegalArgumentException("Insufficient memory to align to the requested boundary");
        }
        return (Memory)share(newPeer - peer, newSize);
      }
      return this;
    }
  }
  throw new IllegalArgumentException("Byte boundary must be a power of two");
}

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

public void setValue(String value) {
  if(value == null) {
    value = "";
  }
  try {
    byte[] encodedValue = value.getBytes("UTF-16LE");
    // 4 bytes for the length prefix, length for the encoded data,
    // 2 bytes for the two NULL terminators
    Memory mem = new Memory(4 + encodedValue.length + 2);
    mem.clear();
    mem.setInt(0, encodedValue.length);
    mem.write(4, encodedValue, 0, encodedValue.length);
    this.setPointer(mem.share(4));
  } catch (UnsupportedEncodingException ex) {
    throw new RuntimeException("UTF-16LE charset is not supported", ex);
  }
}

代码示例来源：origin: kohsuke/libpam4j

Pointer structBase = mem.share(0);
Pointer bufferBase = mem.share(256);
PointerByReference pbr = new PointerByReference();
int result = libc.getpwnam_r(userName, structBase, bufferBase, 4096, pbr);