Package com.kenai.jffi

Interface Closure.Buffer

Enclosing interface:
Closure
public static interface Closure.Buffer
An interface to the native callback parameter buffer.

  • Method Summary

    Modifier and Type Method Description
    long getAddress​(int index)
    Gets the value of a native pointer parameter.
    byte getByte​(int index)
    Gets the value of an 8 bit integer parameter.
    double getDouble​(int index)
    Gets the value of a 64 bit floating point parameter.
    float getFloat​(int index)
    Gets the value of a 32 bit floating point parameter.
    int getInt​(int index)
    Gets the value of a 32 bit integer parameter.
    long getLong​(int index)
    Gets the value of a 64 bit integer parameter.
    short getShort​(int index)
    Gets the value of a 16 bit integer parameter.
    long getStruct​(int index)
    Gets the address of a struct parameter that is passed by value.
    void setAddressReturn​(long address)
    Sets the closure return value to a native pointer value.
    void setByteReturn​(byte value)
    Sets the closure return value to an 8 bit integer value.
    void setDoubleReturn​(double value)
    Sets the closure return value to a 64 bit floating point value.
    void setFloatReturn​(float value)
    Sets the closure return value to a 32 bit floating point value.
    void setIntReturn​(int value)
    Sets the closure return value to a 32 bit integer value.
    void setLongReturn​(long value)
    Sets the closure return value to a 64 bit integer value.
    void setShortReturn​(short value)
    Sets the closure return value to a 16 bit integer value.
    void setStructReturn​(byte[] data, int offset)
    Sets the closure return value to the contents of a struct
    void setStructReturn​(long address)
    Sets the closure return value to the contents of a struct

  • Method Details

    • getByte

      byte getByte​(int index)
      Gets the value of an 8 bit integer parameter.
      Parameters:
      index - The parameter index
      Returns:
      An 8 bit integer value.

    • getShort

      short getShort​(int index)
      Gets the value of a 16 bit integer parameter.
      Parameters:
      index - The parameter index
      Returns:
      A 16 bit integer value.

    • getInt

      int getInt​(int index)
      Gets the value of a 32 bit integer parameter.
      Parameters:
      index - The parameter index
      Returns:
      A 32 bit integer value.

    • getLong

      long getLong​(int index)
      Gets the value of a 64 bit integer parameter.
      Parameters:
      index - The parameter index
      Returns:
      A 64 bit integer value.

    • getFloat

      float getFloat​(int index)
      Gets the value of a 32 bit floating point parameter.
      Parameters:
      index - The parameter index
      Returns:
      A 32 bit floating point value.

    • getDouble

      double getDouble​(int index)
      Gets the value of a 64 bit floating point parameter.
      Parameters:
      index - The parameter index
      Returns:
      A 64 bit floating point value.

    • getAddress

      long getAddress​(int index)
      Gets the value of a native pointer parameter.
      Parameters:
      index - The parameter index
      Returns:
      A native memory address.

    • getStruct

      long getStruct​(int index)
      Gets the address of a struct parameter that is passed by value.
      Parameters:
      index - The parameter index
      Returns:
      A native memory address.

    • setByteReturn

      void setByteReturn​(byte value)
      Sets the closure return value to an 8 bit integer value.
      Parameters:
      value - The 8 bit integer value to return from the closure.

    • setShortReturn

      void setShortReturn​(short value)
      Sets the closure return value to a 16 bit integer value.
      Parameters:
      value - The 16 bit integer value to return from the closure.

    • setIntReturn

      void setIntReturn​(int value)
      Sets the closure return value to a 32 bit integer value.
      Parameters:
      value - The 32 bit integer value to return from the closure.

    • setLongReturn

      void setLongReturn​(long value)
      Sets the closure return value to a 64 bit integer value.
      Parameters:
      value - The 64 bit integer value to return from the closure.

    • setFloatReturn

      void setFloatReturn​(float value)
      Sets the closure return value to a 32 bit floating point value.
      Parameters:
      value - The 32 bit floating point value to return from the closure.

    • setDoubleReturn

      void setDoubleReturn​(double value)
      Sets the closure return value to a 64 bit floating point value.
      Parameters:
      value - The 64 bit floating point value to return from the closure.

    • setAddressReturn

      void setAddressReturn​(long address)
      Sets the closure return value to a native pointer value.
      Parameters:
      address - The native pointer value to return from the closure.

    • setStructReturn

      void setStructReturn​(long address)
      Sets the closure return value to the contents of a struct
      Parameters:
      address - The address of a native struct to return as a struct value from the closure.

    • setStructReturn

      void setStructReturn​(byte[] data, int offset)
      Sets the closure return value to the contents of a struct
      Parameters:
      data - Struct data packed into a byte array to return as a struct value from the closure.
      offset - the offset within the byte array to start copying data