X-Git-Url: https://git.draconx.ca/gitweb/cdecl99.git/blobdiff_plain/9786185611c072036751fdfcc1731158a0c2d20c:/t/memwrap.c..898aa30bfb038ffeca54d6dea95f0f80fbc08f7f:/t/static/gitweb/gitweb.css

diff --git a/t/memwrap.c b/t/memwrap.c
deleted file mode 100644
index 8b54433..0000000
--- a/t/memwrap.c
+++ /dev/null
@@ -1,116 +0,0 @@
-/*
- * Allocation wrapper for test purposes.
- *
- * Copyright © 2024 Nick Bowler
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-#include <config.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <assert.h>
-#include "cdecl-internal.h"
-
-static union test_alloc {
-	union test_alloc *p;
-	max_align_t a;
-	size_t v;
-} *alloc_head;
-
-enum {
-	ALLOC_NEXT_PTR,
-	ALLOC_STATE,
-	ALLOC_SIZE,
-	ALLOC_PAYLOAD
-};
-
-#define ALLOC_STATE_ALLOCATED 0x7143u
-#define ALLOC_STATE_FREED     0xdeadu
-
-/*
- * Hook for testing allocation behaviour of the library, enabling a basic
- * verification in test cases that the library does not leak memory.
- *
- * The library sources must be recompiled with -DTEST_MALLOC_HOOK to
- * make use of this functionality.
- *
- * In this implementation, allocated memory is never freed, instead just
- * marked with an indication that the memory is no longer live.
- */
-void *test_realloc_hook(void *p, size_t n)
-{
-	union test_alloc *old_alloc = p, *alloc;
-
-	if (old_alloc) {
-		old_alloc = &old_alloc[-ALLOC_PAYLOAD];
-		if (old_alloc[ALLOC_STATE].v != ALLOC_STATE_ALLOCATED) {
-			printf("Bail out! %p is not a live allocation!\n", p);
-			exit(99);
-		}
-
-		old_alloc[ALLOC_STATE].v = ALLOC_STATE_FREED;
-		printf("# %p freed\n", p);
-	}
-
-	if (!n)
-		return NULL;
-
-	n = (n + sizeof *alloc - 1) / sizeof *alloc;
-	alloc = (malloc)((n + ALLOC_PAYLOAD) * sizeof *alloc);
-	if (!alloc)
-		return NULL;
-
-	alloc[ALLOC_NEXT_PTR].p = alloc_head;
-	alloc_head = alloc;
-
-	alloc[ALLOC_STATE].v = ALLOC_STATE_ALLOCATED;
-	alloc[ALLOC_SIZE].v  = n * sizeof *alloc;
-
-	if (old_alloc) {
-		n = old_alloc[ALLOC_SIZE].v;
-		memcpy(&alloc[ALLOC_PAYLOAD], &old_alloc[ALLOC_PAYLOAD], n);
-	}
-
-	p = &alloc[ALLOC_PAYLOAD];
-	printf("# %p allocated\n", p);
-	return p;
-}
-
-/*
- * Returns the total number of allocations that have not yet been freed.
- */
-size_t test_live_allocations(void)
-{
-	union test_alloc *a;
-	size_t ret = 0;
-
-	for (a = alloc_head; a; a = a[ALLOC_NEXT_PTR].p) {
-		void *p = &a[ALLOC_PAYLOAD];
-
-		switch (a[ALLOC_STATE].v) {
-		case ALLOC_STATE_ALLOCATED:
-			printf("# %p still live\n", p);
-			ret++;
-			break;
-		case ALLOC_STATE_FREED:
-			break;
-		default:
-			printf("Bail out! detected %p state corruption\n", p);
-			exit(99);
-		}
-	}
-
-	return ret;
-}