1 /*
   2  * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #include <stdio.h>
  26 #include <string.h>
  27 #include "jli_util.h"
  28 
  29 /*
  30  * Returns a pointer to a block of at least 'size' bytes of memory.
  31  * Prints error message and exits if the memory could not be allocated.
  32  */
  33 void *
  34 JLI_MemAlloc(size_t size)
  35 {
  36     void *p = malloc(size);
  37     if (p == 0) {
  38        perror("malloc");
  39        exit(1);
  40     }
  41     return p;
  42 }
  43 
  44 /*
  45  * Equivalent to realloc(size).
  46  * Prints error message and exits if the memory could not be reallocated.
  47  */
  48 void *
  49 JLI_MemRealloc(void *ptr, size_t size)
  50 {
  51     void *p = realloc(ptr, size);
  52     if (p == 0) {
  53         perror("realloc");
  54         exit(1);
  55     }
  56     return p;
  57 }
  58 
  59 /*
  60  * Wrapper over strdup(3C) which prints an error message and exits if memory
  61  * could not be allocated.
  62  */
  63 char *
  64 JLI_StringDup(const char *s1)
  65 {
  66     char *s = _strdup(s1);
  67     if (s == NULL) {
  68         perror("strdup");
  69         exit(1);
  70     }
  71     return s;
  72 }
  73 
  74 /*
  75  * Very equivalent to free(ptr).
  76  * Here to maintain pairing with the above routines.
  77  */
  78 void
  79 JLI_MemFree(void *ptr)
  80 {
  81     free(ptr);
  82 }