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Class CFunc

java.lang.Object
    |
    +----CPtr
            |
            +----CFunc

public class CFunc
extends CPtr

An abstraction for a C function pointer. An instance of CFunc repesents a pointer to some C function. callXXX methods provide means to call the function; select a XXX variant based on the return type of the C function.

Beware that the copyIn, copyOut, setXXX, and getXXX methods inherited from the parent will indirect machine code.

Author:: Sheng Liang
See Also:: CPtr

Fields inherited from class CPtr

NULL, SIZE

Constructor Summary

CFunc(java.lang.String lib, java.lang.String fname, java.lang.String conv)

Create a new CFunc that is linked with a C function that follows a given calling convention.

CFunc(java.lang.String lib, java.lang.String fname)

Create a new CFunc that is linked with a C function that follows the standard "C" calling convention.

Method Summary

CPtr callCPtr(java.lang.Object[] args)

Call the C function being represented by this object.

double callDouble(java.lang.Object[] args)

Call the C function being represented by this object.

float callFloat(java.lang.Object[] args)

Call the C function being represented by this object.

int callInt(java.lang.Object[] args)

Call the C function being represented by this object.

void callVoid(java.lang.Object[] args)

Call the C function being represented by this object.

Methods inherited from class CPtr

copyIn, copyIn, copyIn, copyIn, copyIn, copyIn, copyIn, copyOut, copyOut, copyOut, copyOut, copyOut, copyOut, copyOut, equals, getByte, getCPtr, getDouble, getFloat, getInt, getLong, getShort, getString, hashCode, setByte, setCPtr, setDouble, setFloat, setInt, setLong, setShort, setString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CFunc

public CFunc(java.lang.String lib,
             java.lang.String fname,
             java.lang.String conv)

Create a new CFunc that is linked with a C function that follows a given calling convention.

The allocated instance represents a pointer to the named C function from the named library, called with the named calling convention.

Parameters:: lib - library in which to find the C function; fname - name of the C function to be linked with; conv - calling convention used by the C function

CFunc

public CFunc(java.lang.String lib,
             java.lang.String fname)

Create a new CFunc that is linked with a C function that follows the standard "C" calling convention.

The allocated instance represents a pointer to the named C function from the named library, called with the standard "C" calling convention.

Parameters:: lib - library in which to find the C function; fname - name of the C function to be linked with

Method Detail