/*********************************************************************** * * * This software is part of the ast package * * Copyright (c) 1985-2007 AT&T Knowledge Ventures * * and is licensed under the * * Common Public License, Version 1.0 * * by AT&T Knowledge Ventures * * * * A copy of the License is available at * * http://www.opensource.org/licenses/cpl1.0.txt * * (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * * * * Information and Software Systems Research * * AT&T Research * * Florham Park NJ * * * * Glenn Fowler <gsf@research.att.com> * * David Korn <dgk@research.att.com> * * Phong Vo <kpv@research.att.com> * * * ***********************************************************************/ #if defined(_UWIN) && defined(_BLD_ast) void _STUB_vmdcheap(){} #else #include "vmhdr.h" /* A discipline to get memory from the heap. ** ** Written by Kiem-Phong Vo, kpv@research.att.com, 01/16/94. */ #if __STD_C static Void_t* heapmem(Vmalloc_t* vm, Void_t* caddr, size_t csize, size_t nsize, Vmdisc_t* disc) #else static Void_t* heapmem(vm, caddr, csize, nsize, disc) Vmalloc_t* vm; /* region doing allocation from */ Void_t* caddr; /* current low address */ size_t csize; /* current size */ size_t nsize; /* new size */ Vmdisc_t* disc; /* discipline structure */ #endif { NOTUSED(vm); NOTUSED(disc); if(csize == 0) return vmalloc(Vmheap,nsize); else if(nsize == 0) return vmfree(Vmheap,caddr) >= 0 ? caddr : NIL(Void_t*); else return vmresize(Vmheap,caddr,nsize,0); } static Vmdisc_t _Vmdcheap = { heapmem, NIL(Vmexcept_f), 0 }; __DEFINE__(Vmdisc_t*,Vmdcheap,&_Vmdcheap); #ifdef NoF NoF(vmdcheap) #endif #endif