14887Schin /***********************************************************************
24887Schin * *
34887Schin * This software is part of the ast package *
4*12068SRoger.Faulkner@Oracle.COM * Copyright (c) 1985-2010 AT&T Intellectual Property *
54887Schin * and is licensed under the *
64887Schin * Common Public License, Version 1.0 *
78462SApril.Chin@Sun.COM * by AT&T Intellectual Property *
84887Schin * *
94887Schin * A copy of the License is available at *
104887Schin * http://www.opensource.org/licenses/cpl1.0.txt *
114887Schin * (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) *
124887Schin * *
134887Schin * Information and Software Systems Research *
144887Schin * AT&T Research *
154887Schin * Florham Park NJ *
164887Schin * *
174887Schin * Glenn Fowler <gsf@research.att.com> *
184887Schin * David Korn <dgk@research.att.com> *
194887Schin * Phong Vo <kpv@research.att.com> *
204887Schin * *
214887Schin ***********************************************************************/
224887Schin #pragma prototyped
234887Schin
244887Schin /*
254887Schin * install error message handler for fatal malloc exceptions
264887Schin */
274887Schin
284887Schin #include <ast.h>
294887Schin #include <error.h>
304887Schin #include <vmalloc.h>
314887Schin
324887Schin #include "FEATURE/vmalloc"
334887Schin
344887Schin #if _std_malloc
354887Schin
364887Schin void
memfatal(void)374887Schin memfatal(void)
384887Schin {
394887Schin }
404887Schin
414887Schin #else
424887Schin
434887Schin /*
444887Schin * print message and fail on VM_BADADDR,VM_NOMEM
454887Schin */
464887Schin
474887Schin static int
nomalloc(Vmalloc_t * region,int type,void * obj,Vmdisc_t * disc)484887Schin nomalloc(Vmalloc_t* region, int type, void* obj, Vmdisc_t* disc)
494887Schin {
504887Schin Vmstat_t st;
514887Schin
524887Schin NoP(disc);
534887Schin switch (type)
544887Schin {
554887Schin case VM_BADADDR:
564887Schin error(ERROR_SYSTEM|3, "invalid pointer %p passed to free or realloc", obj);
574887Schin return(-1);
584887Schin case VM_NOMEM:
594887Schin vmstat(region, &st);
604887Schin 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);
614887Schin return(-1);
624887Schin }
634887Schin return(0);
644887Schin }
654887Schin
664887Schin /*
674887Schin * initialize the malloc exception handler
684887Schin */
694887Schin
704887Schin void
memfatal(void)714887Schin memfatal(void)
724887Schin {
734887Schin Vmdisc_t* disc;
744887Schin
7510898Sroland.mainz@nrubsig.org malloc(0);
7610898Sroland.mainz@nrubsig.org if (disc = vmdisc(Vmregion, NiL))
774887Schin disc->exceptf = nomalloc;
784887Schin }
794887Schin
804887Schin #endif
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