home *** CD-ROM | disk | FTP | other *** search
- static char rcsid[] = "$Id: xmalloc.c,v 1.8 1995/02/04 01:37:58 hardy Exp $";
- /*
- * xmalloc.c - Memory allocation for Essence system.
- *
- * Darren Hardy, hardy@cs.colorado.edu, February 1994
- *
- * ----------------------------------------------------------------------
- * Copyright (c) 1994, 1995. All rights reserved.
- *
- * Mic Bowman of Transarc Corporation.
- * Peter Danzig of the University of Southern California.
- * Darren R. Hardy of the University of Colorado at Boulder.
- * Udi Manber of the University of Arizona.
- * Michael F. Schwartz of the University of Colorado at Boulder.
- *
- * This copyright notice applies to all code in Harvest other than
- * subsystems developed elsewhere, which contain other copyright notices
- * in their source text.
- *
- * The Harvest software was developed by the Internet Research Task
- * Force Research Group on Resource Discovery (IRTF-RD). The Harvest
- * software may be used for academic, research, government, and internal
- * business purposes without charge. If you wish to sell or distribute
- * the Harvest software to commercial clients or partners, you must
- * license the software. See
- * http://harvest.cs.colorado.edu/harvest/copyright,licensing.html#licensing.
- *
- * The Harvest software is provided ``as is'', without express or
- * implied warranty, and with no support nor obligation to assist in its
- * use, correction, modification or enhancement. We assume no liability
- * with respect to the infringement of copyrights, trade secrets, or any
- * patents, and are not responsible for consequential damages. Proper
- * use of the Harvest software is entirely the responsibility of the user.
- *
- * For those who are using Harvest for non-commercial purposes, you may
- * make derivative works, subject to the following constraints:
- *
- * - You must include the above copyright notice and these accompanying
- * paragraphs in all forms of derivative works, and any documentation
- * and other materials related to such distribution and use acknowledge
- * that the software was developed at the above institutions.
- *
- * - You must notify IRTF-RD regarding your distribution of the
- * derivative work.
- *
- * - You must clearly notify users that your are distributing a modified
- * version and not the original Harvest software.
- *
- * - Any derivative product is also subject to the restrictions of the
- * copyright, including distribution and use limitations.
- */
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- #include "util.h"
- #ifdef MEMORY_LEAKS
- #include "leak.h"
- #endif
-
- /*
- * xmalloc() - same as malloc(3) except if malloc() returns NULL, then
- * xmalloc() prints an error message and calls exit(3). So xmalloc()
- * always returns non-NULL values.
- */
- void *xmalloc(sz)
- size_t sz;
- {
- static void *p;
-
- #ifdef MEMORY_LEAKS
- leak_logging = 1;
- #endif
- if ((p = malloc(sz)) == NULL) {
- errorlog("malloc: Out of memory! Exiting...\n");
- exit(1);
- }
- memset(p, '\0', sz); /* NULL out the memory */
- return (p);
- }
-
- /*
- * xfree() - same as free(3).
- */
- void xfree(s)
- void *s;
- {
- #ifdef MEMORY_LEAKS
- leak_logging = 1;
- #endif
- if (s != NULL) {
- free(s);
- }
- }
-
- /*
- * xrealloc() - same as realloc(3). Exits on error, so always returns
- * non-NULL values.
- */
- void *xrealloc(s, sz)
- void *s;
- size_t sz;
- {
- static void *p;
-
- #ifdef MEMORY_LEAKS
- leak_logging = 1;
- #endif
- if ((p = realloc(s, sz)) == NULL) {
- errorlog("realloc: Out of memory! Exiting...\n");
- exit(1);
- }
- return (p);
- }
-