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Add test and remove code comments

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cozis
2024-04-20 20:41:06 +02:00
parent 3acc0a80a8
commit 457bc24019
5 changed files with 91 additions and 99 deletions
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buddy.c
+6 -82
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@@ -547,8 +547,12 @@ void *buddy_malloc(struct buddy_alloc *alloc, size_t len)
void buddy_free(struct buddy_alloc *alloc,
size_t len, void *ptr)
{
if (ptr == NULL || len == 0) return;
if (len > MAX_BLOCK_SIZE) return;
if (ptr == NULL || len == 0)
return;
if (len > MAX_BLOCK_SIZE)
return;
len = normalize_len(len);
if (!is_allocated(alloc, ptr, len))
@@ -571,83 +575,3 @@ void buddy_free(struct buddy_alloc *alloc,
len <<= 1;
}
}
/*
#define ANSI_COLOR_RED "\x1b[31m"
#define ANSI_COLOR_GREEN "\x1b[32m"
#define ANSI_COLOR_YELLOW "\x1b[33m"
#define ANSI_COLOR_BLUE "\x1b[34m"
#define ANSI_COLOR_MAGENTA "\x1b[35m"
#define ANSI_COLOR_CYAN "\x1b[36m"
#define ANSI_COLOR_RESET "\x1b[0m"
static const char *block_size_label(size_t len)
{
const char *label = "???";
switch (len) {
case 1<<12: label = "4K"; break;
case 1<<11: label = "2K"; break;
case 1<<10: label = "1K"; break;
case 1<<9 : label = "512B"; break;
case 1<<8 : label = "256B"; break;
}
return label;
}
void print_lists(struct buddy_alloc *alloc)
{
for (int i = MIN_BLOCK_LOG2; i <= MAX_BLOCK_LOG2; i++) {
fprintf(stderr, "%s = {", block_size_label(1U<<i));
struct page *p = alloc->lists[i - MIN_BLOCK_LOG2];
while (p) {
assert((uintptr_t) p >= (uintptr_t) alloc->base);
fprintf(stderr, "%lu", (uintptr_t) p - (uintptr_t) alloc->base);
p = p->next;
if (p)
fprintf(stderr, ", ");
}
fprintf(stderr, "}\n");
}
}
void buddy_dump(struct buddy_alloc *alloc, FILE *out)
{
fprintf(out, "\n");
for (int i = 0; i < alloc->num_info; i++) {
for (int j = 0; j < 32; j++) {
if (alloc->info[i].bits[0] & (1U << j))
fprintf(stderr, "1");
else
fprintf(stderr, "0");
}
fprintf(stderr, " ");
}
fprintf(stderr, "\n");
for (int i = 0; i < alloc->num_info; i++) {
char *page = alloc->base + i * MAX_BLOCK_SIZE;
for (int j = MAX_BLOCK_LOG2; j >= MIN_BLOCK_LOG2; j--) {
size_t len = 1U << j;
const char *label = block_size_label(len);
for (size_t k = 0; k < MAX_BLOCK_SIZE / len; k++) {
char *ptr = page + k * len;
fprintf(out, "%-4lX ", (uintptr_t) ptr - (uintptr_t) alloc->base);
for (int q = 0; q < MAX_BLOCK_LOG2 - j; q++)
fprintf(out, " ");
if (is_allocated(alloc, ptr, len))
fprintf(out, ANSI_COLOR_GREEN "%s - allocated\n" ANSI_COLOR_RESET, label);
else
fprintf(out, "%s - free\n", label);
}
}
}
}
*/