ucx: test/util_allocator.c@afd87df80b13 (annotated)

test/util_allocator.c@afd87df80b13 (annotated)

test/util_allocator.c

Sun, 26 Sep 2021 14:41:16 +0200

author: Mike Becker <universe@uap-core.de>
date: Sun, 26 Sep 2021 14:41:16 +0200
changeset 422: afd87df80b13
child 494: 6ce8cfa10a96
permissions: -rw-r--r--

add utility to verify allocations

 /*
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
  *
  * Copyright 2021 Mike Becker, Olaf Wintermann All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *   1. Redistributions of source code must retain the above copyright
  *      notice, this list of conditions and the following disclaimer.
  *
  *   2. Redistributions in binary form must reproduce the above copyright
  *      notice, this list of conditions and the following disclaimer in the
  *      documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGE.
  */
 #include "util_allocator.h"
 #include <string.h>
 void cx_testing_allocator_add(cx_testing_allocator_s *data, void *ptr) {
     data->tracked[data->live] = ptr;
     data->live++;
 }
 int cx_testing_allocator_remove(cx_testing_allocator_s *data, void *ptr) {
     for (int i = 0; i < data->live; i++) {
         if (data->tracked[i] == ptr) {
             data->tracked[i] = data->tracked[data->live - 1];
             data->live--;
             return 0;
         }
     }
     return 1;
 }
 void *cx_malloc_testing(void *d, size_t n) {
     cx_testing_allocator_s *data = d;
     void *ptr = malloc(n);
     data->alloc_total++;
     if (ptr == NULL) {
         data->alloc_failed++;
     } else {
         cx_testing_allocator_add(data, ptr);
     }
     return ptr;
 }
 void *cx_realloc_testing(void *d, void *mem, size_t n) {
     cx_testing_allocator_s *data = d;
     void *ptr = realloc(mem, n);
     if (ptr == mem) {
         return ptr;
     } else {
         data->alloc_total++;
         if (ptr == NULL) {
             data->alloc_failed++;
         } else {
             data->free_total++;
             if (cx_testing_allocator_remove(data, mem)) {
                 data->free_failed++;
             }
             cx_testing_allocator_add(data, ptr);
         }
         return ptr;
     }
 }
 void *cx_calloc_testing(void *d, size_t nelem, size_t n) {
     cx_testing_allocator_s *data = d;
     void *ptr = calloc(nelem, n);
     data->alloc_total++;
     if (ptr == NULL) {
         data->alloc_failed++;
     } else {
         cx_testing_allocator_add(data, ptr);
     }
     return ptr;
 }
 void cx_free_testing(void *d, void *mem) {
     cx_testing_allocator_s *data = d;
     data->free_total++;
     if (cx_testing_allocator_remove(data, mem)) {
         data->free_failed++;
         // do not even attempt to free mem, because it is likely to segfault
     } else {
         free(mem);
     }
 }
 cx_allocator_class cx_testing_allocator_class = {
         cx_malloc_testing,
         cx_realloc_testing,
         cx_calloc_testing,
         cx_free_testing
 };
 cx_testing_allocator_s cx_testing_allocator_data;
 struct cx_allocator_s cx_testing_allocator = {
         &cx_testing_allocator_class,
         &cx_testing_allocator_data
 };
 CxAllocator cxTestingAllocator = &cx_testing_allocator;
 void cxTestingAllocatorReset(void) {
     memset(&cx_testing_allocator_data, 0, sizeof(cx_testing_allocator_s));
 }
 int cxTestingAllocatorVerify(void) {
     return cx_testing_allocator_data.live == 0
            && cx_testing_allocator_data.alloc_failed == 0 && cx_testing_allocator_data.free_failed == 0
            && cx_testing_allocator_data.alloc_total == cx_testing_allocator_data.free_total;
 }

Mercurial > hg > ucx / annotate

test/util_allocator.c@afd87df80b13 (annotated)

test/util_allocator.c