/*********************************************************************** * * * 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> * * * ***********************************************************************/ #pragma prototyped /* * install error message handler for fatal malloc exceptions */ #include <ast.h> #include <error.h> #include <vmalloc.h> #include "FEATURE/vmalloc" #if _std_malloc void memfatal(void) { } #else /* * print message and fail on VM_BADADDR,VM_NOMEM */ static int nomalloc(Vmalloc_t* region, int type, void* obj, Vmdisc_t* disc) { Vmstat_t st; NoP(disc); switch (type) { case VM_BADADDR: error(ERROR_SYSTEM|3, "invalid pointer %p passed to free or realloc", obj); return(-1); case VM_NOMEM: vmstat(region, &st); error(ERROR_SYSTEM|3, "storage allocator out of space on %lu byte request ( region %lu segments %lu busy %lu:%lu:%lu free %lu:%lu:%lu )", (size_t)obj, st.extent, st.n_seg, st.n_busy, st.s_busy, st.m_busy, st.n_free, st.s_free, st.m_free); return(-1); } return(0); } /* * initialize the malloc exception handler */ void memfatal(void) { Vmdisc_t* disc; if (disc = vmdisc(Vmheap, NiL)) disc->exceptf = nomalloc; } #endif