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

      All Methods Instance Methods Abstract Methods 
      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 Detail

      • 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