1*4887Schin /*********************************************************************** 2*4887Schin * * 3*4887Schin * This software is part of the ast package * 4*4887Schin * Copyright (c) 1985-2007 AT&T Knowledge Ventures * 5*4887Schin * and is licensed under the * 6*4887Schin * Common Public License, Version 1.0 * 7*4887Schin * by AT&T Knowledge Ventures * 8*4887Schin * * 9*4887Schin * A copy of the License is available at * 10*4887Schin * http://www.opensource.org/licenses/cpl1.0.txt * 11*4887Schin * (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * 12*4887Schin * * 13*4887Schin * Information and Software Systems Research * 14*4887Schin * AT&T Research * 15*4887Schin * Florham Park NJ * 16*4887Schin * * 17*4887Schin * Glenn Fowler <gsf@research.att.com> * 18*4887Schin * David Korn <dgk@research.att.com> * 19*4887Schin * Phong Vo <kpv@research.att.com> * 20*4887Schin * * 21*4887Schin ***********************************************************************/ 22*4887Schin #pragma prototyped 23*4887Schin 24*4887Schin /* 25*4887Schin * install error message handler for fatal malloc exceptions 26*4887Schin */ 27*4887Schin 28*4887Schin #include <ast.h> 29*4887Schin #include <error.h> 30*4887Schin #include <vmalloc.h> 31*4887Schin 32*4887Schin #include "FEATURE/vmalloc" 33*4887Schin 34*4887Schin #if _std_malloc 35*4887Schin 36*4887Schin void 37*4887Schin memfatal(void) 38*4887Schin { 39*4887Schin } 40*4887Schin 41*4887Schin #else 42*4887Schin 43*4887Schin /* 44*4887Schin * print message and fail on VM_BADADDR,VM_NOMEM 45*4887Schin */ 46*4887Schin 47*4887Schin static int 48*4887Schin nomalloc(Vmalloc_t* region, int type, void* obj, Vmdisc_t* disc) 49*4887Schin { 50*4887Schin Vmstat_t st; 51*4887Schin 52*4887Schin NoP(disc); 53*4887Schin switch (type) 54*4887Schin { 55*4887Schin case VM_BADADDR: 56*4887Schin error(ERROR_SYSTEM|3, "invalid pointer %p passed to free or realloc", obj); 57*4887Schin return(-1); 58*4887Schin case VM_NOMEM: 59*4887Schin vmstat(region, &st); 60*4887Schin 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); 61*4887Schin return(-1); 62*4887Schin } 63*4887Schin return(0); 64*4887Schin } 65*4887Schin 66*4887Schin /* 67*4887Schin * initialize the malloc exception handler 68*4887Schin */ 69*4887Schin 70*4887Schin void 71*4887Schin memfatal(void) 72*4887Schin { 73*4887Schin Vmdisc_t* disc; 74*4887Schin 75*4887Schin if (disc = vmdisc(Vmheap, NiL)) 76*4887Schin disc->exceptf = nomalloc; 77*4887Schin } 78*4887Schin 79*4887Schin #endif 80