Sun, 24 Apr 2022 17:29:34 +0200
do not implicitly zero freshly allocated memory
universe@422 | 1 | /* |
universe@422 | 2 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. |
universe@422 | 3 | * |
universe@422 | 4 | * Copyright 2021 Mike Becker, Olaf Wintermann All rights reserved. |
universe@422 | 5 | * |
universe@422 | 6 | * Redistribution and use in source and binary forms, with or without |
universe@422 | 7 | * modification, are permitted provided that the following conditions are met: |
universe@422 | 8 | * |
universe@422 | 9 | * 1. Redistributions of source code must retain the above copyright |
universe@422 | 10 | * notice, this list of conditions and the following disclaimer. |
universe@422 | 11 | * |
universe@422 | 12 | * 2. Redistributions in binary form must reproduce the above copyright |
universe@422 | 13 | * notice, this list of conditions and the following disclaimer in the |
universe@422 | 14 | * documentation and/or other materials provided with the distribution. |
universe@422 | 15 | * |
universe@422 | 16 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
universe@422 | 17 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
universe@422 | 18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
universe@422 | 19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
universe@422 | 20 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
universe@422 | 21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
universe@422 | 22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
universe@422 | 23 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
universe@422 | 24 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
universe@422 | 25 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
universe@422 | 26 | * POSSIBILITY OF SUCH DAMAGE. |
universe@422 | 27 | */ |
universe@422 | 28 | |
universe@422 | 29 | #ifndef UCX_UTIL_ALLOCATOR_H |
universe@422 | 30 | #define UCX_UTIL_ALLOCATOR_H |
universe@422 | 31 | |
universe@422 | 32 | #include "cx/allocator.h" |
universe@422 | 33 | |
universe@518 | 34 | #include <set> |
universe@422 | 35 | |
universe@518 | 36 | struct CxTestingAllocator : public CxAllocator { |
universe@422 | 37 | /** |
universe@422 | 38 | * Total number of all allocations (malloc, calloc, realloc). |
universe@422 | 39 | * A realloc() does only count when the memory has to be moved. |
universe@422 | 40 | */ |
universe@518 | 41 | unsigned alloc_total = 0; |
universe@422 | 42 | /** |
universe@422 | 43 | * Number of failed allocations (malloc, calloc, realloc). |
universe@422 | 44 | */ |
universe@518 | 45 | unsigned alloc_failed = 0; |
universe@422 | 46 | /** |
universe@422 | 47 | * Total number of freed pointers. |
universe@422 | 48 | * A reallocation also counts as a free when the memory has to be moved. |
universe@422 | 49 | */ |
universe@518 | 50 | unsigned free_total = 0; |
universe@422 | 51 | /** |
universe@422 | 52 | * Number of failed free invocations. |
universe@422 | 53 | * A free() is considered failed, if it has not been performed on tracked memory. |
universe@422 | 54 | */ |
universe@518 | 55 | unsigned free_failed = 0; |
universe@422 | 56 | /** |
universe@518 | 57 | * The set of tracked memory blocks. |
universe@422 | 58 | */ |
universe@518 | 59 | std::set<void *> tracked; |
universe@518 | 60 | |
universe@422 | 61 | /** |
universe@518 | 62 | * Constructs a new testing allocator. |
universe@422 | 63 | */ |
universe@518 | 64 | CxTestingAllocator(); |
universe@422 | 65 | |
universe@518 | 66 | /** |
universe@518 | 67 | * Verifies that all allocated memory blocks are freed and no free occurred twice. |
universe@518 | 68 | * |
universe@518 | 69 | * @return true iff all tracked allocations / deallocations were valid |
universe@518 | 70 | */ |
universe@518 | 71 | bool verify() const; |
universe@518 | 72 | }; |
universe@422 | 73 | |
universe@422 | 74 | #endif /* UCX_UTIL_ALLOCATOR_H */ |