diff options
| author | Charles Cabergs <me@cacharle.xyz> | 2020-09-18 16:39:52 +0200 |
|---|---|---|
| committer | Charles Cabergs <me@cacharle.xyz> | 2020-09-18 16:39:52 +0200 |
| commit | dd0c485ac4975b7dd6d2e230213be1da50d0a065 (patch) | |
| tree | 5fbd967f8b95c72fbb696bb089c2cc349d28b61f /vendor/_unity/unity_memory.c | |
| parent | 3c3f1115f6e9a9b914e2dcbd796501ca7ce85342 (diff) | |
| download | libft-malloc.tar.gz libft-malloc.tar.bz2 libft-malloc.zip | |
Removing unnecessary stuffmalloc
Diffstat (limited to 'vendor/_unity/unity_memory.c')
| -rw-r--r-- | vendor/_unity/unity_memory.c | 202 |
1 files changed, 0 insertions, 202 deletions
diff --git a/vendor/_unity/unity_memory.c b/vendor/_unity/unity_memory.c deleted file mode 100644 index e4dc665..0000000 --- a/vendor/_unity/unity_memory.c +++ /dev/null @@ -1,202 +0,0 @@ -/* ========================================== - * Unity Project - A Test Framework for C - * Copyright (c) 2007 Mike Karlesky, Mark VanderVoord, Greg Williams - * [Released under MIT License. Please refer to license.txt for details] - * ========================================== */ - -#include "unity.h" -#include "unity_memory.h" -#include <string.h> - -#define MALLOC_DONT_FAIL -1 -static int malloc_count; -static int malloc_fail_countdown = MALLOC_DONT_FAIL; - -void UnityMalloc_StartTest(void) -{ - malloc_count = 0; - malloc_fail_countdown = MALLOC_DONT_FAIL; -} - -void UnityMalloc_EndTest(void) -{ - malloc_fail_countdown = MALLOC_DONT_FAIL; - if (malloc_count != 0) - { - UNITY_TEST_FAIL(Unity.CurrentTestLineNumber, "This test leaks!"); - } -} - -void UnityMalloc_MakeMallocFailAfterCount(int countdown) -{ - malloc_fail_countdown = countdown; -} - -/* These definitions are always included from unity_fixture_malloc_overrides.h */ -/* We undef to use them or avoid conflict with <stdlib.h> per the C standard */ -#undef malloc -#undef free -#undef calloc -#undef realloc - -#ifdef UNITY_EXCLUDE_STDLIB_MALLOC -static unsigned char unity_heap[UNITY_INTERNAL_HEAP_SIZE_BYTES]; -static size_t heap_index; -#else -#include <stdlib.h> -#endif - -typedef struct GuardBytes -{ - size_t size; - size_t guard_space; -} Guard; - -#define UNITY_MALLOC_ALIGNMENT (UNITY_POINTER_WIDTH / 8) -static const char end[] = "END"; - -static size_t unity_size_round_up(size_t size) -{ - size_t rounded_size; - - rounded_size = ((size + UNITY_MALLOC_ALIGNMENT - 1) / UNITY_MALLOC_ALIGNMENT) * UNITY_MALLOC_ALIGNMENT; - - return rounded_size; -} - -void* unity_malloc(size_t size) -{ - char* mem; - Guard* guard; - size_t total_size; - - total_size = sizeof(Guard) + unity_size_round_up(size + sizeof(end)); - - if (malloc_fail_countdown != MALLOC_DONT_FAIL) - { - if (malloc_fail_countdown == 0) - return NULL; - malloc_fail_countdown--; - } - - if (size == 0) return NULL; -#ifdef UNITY_EXCLUDE_STDLIB_MALLOC - if (heap_index + total_size > UNITY_INTERNAL_HEAP_SIZE_BYTES) - { - guard = NULL; - } - else - { - /* We know we can get away with this cast because we aligned memory already */ - guard = (Guard*)(void*)(&unity_heap[heap_index]); - heap_index += total_size; - } -#else - guard = (Guard*)UNITY_MALLOC(total_size); -#endif - if (guard == NULL) return NULL; - malloc_count++; - guard->size = size; - guard->guard_space = 0; - mem = (char*)&(guard[1]); - memcpy(&mem[size], end, sizeof(end)); - - return (void*)mem; -} - -static int isOverrun(void* mem) -{ - Guard* guard = (Guard*)mem; - char* memAsChar = (char*)mem; - guard--; - - return guard->guard_space != 0 || strcmp(&memAsChar[guard->size], end) != 0; -} - -static void release_memory(void* mem) -{ - Guard* guard = (Guard*)mem; - guard--; - - malloc_count--; -#ifdef UNITY_EXCLUDE_STDLIB_MALLOC - { - size_t block_size; - - block_size = unity_size_round_up(guard->size + sizeof(end)); - - if (mem == unity_heap + heap_index - block_size) - { - heap_index -= (sizeof(Guard) + block_size); - } - } -#else - UNITY_FREE(guard); -#endif -} - -void unity_free(void* mem) -{ - int overrun; - - if (mem == NULL) - { - return; - } - - overrun = isOverrun(mem); - release_memory(mem); - if (overrun) - { - UNITY_TEST_FAIL(Unity.CurrentTestLineNumber, "Buffer overrun detected during free()"); - } -} - -void* unity_calloc(size_t num, size_t size) -{ - void* mem = unity_malloc(num * size); - if (mem == NULL) return NULL; - memset(mem, 0, num * size); - return mem; -} - -void* unity_realloc(void* oldMem, size_t size) -{ - Guard* guard = (Guard*)oldMem; - void* newMem; - - if (oldMem == NULL) return unity_malloc(size); - - guard--; - if (isOverrun(oldMem)) - { - release_memory(oldMem); - UNITY_TEST_FAIL(Unity.CurrentTestLineNumber, "Buffer overrun detected during realloc()"); - } - - if (size == 0) - { - release_memory(oldMem); - return NULL; - } - - if (guard->size >= size) return oldMem; - -#ifdef UNITY_EXCLUDE_STDLIB_MALLOC /* Optimization if memory is expandable */ - { - size_t old_total_size = unity_size_round_up(guard->size + sizeof(end)); - - if ((oldMem == unity_heap + heap_index - old_total_size) && - ((heap_index - old_total_size + unity_size_round_up(size + sizeof(end))) <= UNITY_INTERNAL_HEAP_SIZE_BYTES)) - { - release_memory(oldMem); /* Not thread-safe, like unity_heap generally */ - return unity_malloc(size); /* No memcpy since data is in place */ - } - } -#endif - newMem = unity_malloc(size); - if (newMem == NULL) return NULL; /* Do not release old memory */ - memcpy(newMem, oldMem, guard->size); - release_memory(oldMem); - return newMem; -} |
