Package org.lwjgl.system.libffi

Class FFIClosure

java.lang.Object
org.lwjgl.system.Pointer.Default
org.lwjgl.system.Struct<FFIClosure>
org.lwjgl.system.libffi.FFIClosure
All Implemented Interfaces:
AutoCloseable, NativeResource, Pointer
public class FFIClosure extends Struct<FFIClosure> implements NativeResource

 struct ffi_closure {
     {@link FFICIF ffi_cif} * cif;
     void (*)(ffi_cif*,void*,void**,void*) fun;
     void * user_data;
 }

  • Field Details

    • SIZEOF

      public static final int SIZEOF
      The struct size in bytes.

    • ALIGNOF

      public static final int ALIGNOF
      The struct alignment in bytes.

    • CIF

      public static final int CIF
      The struct member offsets.

    • FUN

      public static final int FUN
      The struct member offsets.

    • USER_DATA

      public static final int USER_DATA
      The struct member offsets.

  • Constructor Details

    • FFIClosure

      public FFIClosure(ByteBuffer container)
      Creates a FFIClosure instance at the current position of the specified ByteBuffer container. Changes to the buffer's content will be visible to the struct instance and vice versa.

      The created instance holds a strong reference to the container object.

  • Method Details

    • sizeof

      public int sizeof()
      Description copied from class: Struct
      Returns sizeof(struct).
      Specified by:
      sizeof in class Struct<FFIClosure>

    • cif

      public FFICIF cif()
      Returns:
      a FFICIF view of the struct pointed to by the cif field.

    • fun

      public long fun()
      Returns:
      the value of the fun field.

    • user_data

      public long user_data()
      Returns:
      the value of the user_data field.

    • malloc

      public static FFIClosure malloc()
      Returns a new FFIClosure instance allocated with memAlloc. The instance must be explicitly freed.

    • calloc

      public static FFIClosure calloc()
      Returns a new FFIClosure instance allocated with memCalloc. The instance must be explicitly freed.

    • create

      public static FFIClosure create()
      Returns a new FFIClosure instance allocated with BufferUtils.

    • create

      public static FFIClosure create(long address)
      Returns a new FFIClosure instance for the specified memory address.

    • createSafe

      public static @Nullable FFIClosure createSafe(long address)
      Like create, but returns null if address is NULL.

    • malloc

      public static FFIClosure.Buffer malloc(int capacity)
      Returns a new FFIClosure.Buffer instance allocated with memAlloc. The instance must be explicitly freed.
      Parameters:
      capacity - the buffer capacity

    • calloc

      public static FFIClosure.Buffer calloc(int capacity)
      Returns a new FFIClosure.Buffer instance allocated with memCalloc. The instance must be explicitly freed.
      Parameters:
      capacity - the buffer capacity

    • create

      public static FFIClosure.Buffer create(int capacity)
      Returns a new FFIClosure.Buffer instance allocated with BufferUtils.
      Parameters:
      capacity - the buffer capacity

    • create

      public static FFIClosure.Buffer create(long address, int capacity)
      Create a FFIClosure.Buffer instance at the specified memory.
      Parameters:
      address - the memory address
      capacity - the buffer capacity

    • createSafe

      public static @Nullable FFIClosure.Buffer createSafe(long address, int capacity)
      Like create, but returns null if address is NULL.

    • malloc

      public static FFIClosure malloc(MemoryStack stack)
      Returns a new FFIClosure instance allocated on the specified MemoryStack.
      Parameters:
      stack - the stack from which to allocate

    • calloc

      public static FFIClosure calloc(MemoryStack stack)
      Returns a new FFIClosure instance allocated on the specified MemoryStack and initializes all its bits to zero.
      Parameters:
      stack - the stack from which to allocate

    • malloc

      public static FFIClosure.Buffer malloc(int capacity, MemoryStack stack)
      Returns a new FFIClosure.Buffer instance allocated on the specified MemoryStack.
      Parameters:
      capacity - the buffer capacity
      stack - the stack from which to allocate

    • calloc

      public static FFIClosure.Buffer calloc(int capacity, MemoryStack stack)
      Returns a new FFIClosure.Buffer instance allocated on the specified MemoryStack and initializes all its bits to zero.
      Parameters:
      capacity - the buffer capacity
      stack - the stack from which to allocate

    • ncif

      public static FFICIF ncif(long struct)
      Unsafe version of cif().

    • nfun

      public static long nfun(long struct)
      Unsafe version of fun().

    • nuser_data

      public static long nuser_data(long struct)
      Unsafe version of user_data().