harpoon.Backend.Runtime1
Class MallocAllocationStrategy

java.lang.Object
  harpoon.Backend.Runtime1.AllocationStrategy
      harpoon.Backend.Runtime1.MallocAllocationStrategy

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

BDWAllocationStrategy, HeapStatsAllocationStrategy, InstrumentedAllocationStrategy, NiftyAllocationStrategy, RealtimeAllocationStrategy, SPAllocationStrategy

public class MallocAllocationStrategy
extends AllocationStrategy

MallocAllocationStrategy calls a C function with the same prototype as malloc() to do the allocation.

Version:

$Id: MallocAllocationStrategy.java,v 1.2 2002/02/25 21:02:20 cananian Exp $

Author:

C. Scott Ananian <cananian@alumni.princeton.edu>

See Also:

Serialized Form

Field Summary

protected Frame

frame

Constructor Summary

MallocAllocationStrategy(Frame f, String funcname)
Creates a MallocAllocationStrategy.

Method Summary

protected Exp	buildAllocCall(TreeFactory tf, HCodeElement source, DerivationGenerator dg, AllocationInformation.AllocationProperties ap, String funcname, Exp length, ExpList addlArgs)
protected static Exp	DECLARE(DerivationGenerator dg, HClass hc, Exp exp)
protected static Exp	DECLARE(DerivationGenerator dg, HClass hc, Temp t, Exp exp)
Exp	memAlloc(TreeFactory tf, HCodeElement source, DerivationGenerator dg, AllocationInformation.AllocationProperties ap, Exp length) Return a Tree.Exp created with the given TreeFactory that returns a pointer to a piece of memory length bytes long.

Methods inherited from class java.lang.Object

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

Field Detail

frame

protected final Frame frame

Constructor Detail

MallocAllocationStrategy

public MallocAllocationStrategy(Frame f,
                                String funcname)

Creates a MallocAllocationStrategy.

Parameters:

funcname - The name of the C function to call to do the allocation.

Method Detail

memAlloc

public Exp memAlloc(TreeFactory tf,
                    HCodeElement source,
                    DerivationGenerator dg,
                    AllocationInformation.AllocationProperties ap,
                    Exp length)

Description copied from class: AllocationStrategy

Return a Tree.Exp created with the given TreeFactory that returns a pointer to a piece of memory length bytes long.

Specified by:

memAlloc in class AllocationStrategy

buildAllocCall

protected Exp buildAllocCall(TreeFactory tf,
                             HCodeElement source,
                             DerivationGenerator dg,
                             AllocationInformation.AllocationProperties ap,
                             String funcname,
                             Exp length,
                             ExpList addlArgs)

DECLARE

protected static Exp DECLARE(DerivationGenerator dg,
                             HClass hc,
                             Exp exp)

DECLARE

protected static Exp DECLARE(DerivationGenerator dg,
                             HClass hc,
                             Temp t,
                             Exp exp)