Simplify buddy_startup and remove buddy_cleanup

test2.c

@@ -1,63 +1,21 @@
-#include <stdio.h>
+#include <stdlib.h>
 #include "buddy.h"
 
-#define NUM_PAGES 16
-
-#define MIN_ALLOC_SIZE (1U << BUDDY_ALLOC_MIN_BLOCK_LOG2)
-#define PAGE_SIZE (1U << BUDDY_ALLOC_MAX_BLOCK_LOG2)
-#define POOL_SIZE (NUM_PAGES * PAGE_SIZE)
-#define MAX_ALLOCS (POOL_SIZE / MIN_ALLOC_SIZE)
-
 int main(void)
 {
-    _Alignas(PAGE_SIZE) char mem[POOL_SIZE];
-    struct page_info info[NUM_PAGES];
-    struct buddy_alloc alloc = buddy_startup(mem, POOL_SIZE, info, NUM_PAGES);
+    char mem[1<<20];
+    for (int i = 0; i < 100; i++) {
 
-    void *allocs[MAX_ALLOCS];
+        void  *base = mem;
+        size_t size = sizeof(mem);
 
-    size_t performed = 0;
-    for (size_t i = 0; i < MAX_ALLOCS; i++) {
-        void *ptr = buddy_malloc(&alloc, MIN_ALLOC_SIZE);
-        if (ptr == NULL)
-            break;
-        
-        performed++;
+        size_t pad = rand() % size;
+        base += pad;
+        size -= pad;
 
-        allocs[i] = ptr;
+        size_t len = rand() % (size+1);
 
-        *(size_t*) ptr = i;
+        struct buddy *b = buddy_startup(base, len);
     }
-
-    if (performed == MAX_ALLOCS) {
-
-        for (size_t i = 0; i < MAX_ALLOCS; i++) {
-            if (*(size_t*) allocs[i] != i)
-                fprintf(stderr, "%p allocated twice!\n", allocs[i]);
-        }
-
-        for (size_t i = 0; i < MAX_ALLOCS; i++) {
-            buddy_free(&alloc, MIN_ALLOC_SIZE, allocs[MAX_ALLOCS-i-1]);
-        }
-
-        performed = 0;
-        for (size_t i = 0; i < MAX_ALLOCS; i++) {
-            void *ptr = buddy_malloc(&alloc, MIN_ALLOC_SIZE);
-            performed++;
-
-            allocs[i] = ptr;
-
-            *(size_t*) ptr = i + MAX_ALLOCS;
-        }
-
-        for (size_t i = 0; i < MAX_ALLOCS; i++) {
-            if (*(size_t*) allocs[i] != MAX_ALLOCS + i)
-                fprintf(stderr, "%p reallocation error!\n", allocs[i]);
-        }
-    }
-
-    fprintf(stderr, "performed=%d, expected=%d\n", (int) performed, (int) MAX_ALLOCS);
-
-    buddy_cleanup(&alloc);
     return 0;
-}
+}