import

2026-05-19 11:49:22 +08:00
commit add7af4222
96 changed files with 8635 additions and 0 deletions
@@ -0,0 +1,37 @@
+#ifndef INCLUDED_BUDDY_H
+#define INCLUDED_BUDDY_H
+
+#ifndef INCLUDED_OS_TYPES_H
+#include <os_types.h>
+#endif /*INCLUDED_OS_TYPES_H*/
+
+/* ------------------------------------------------------------------------------------------------------------------ */
+/* https://www.gingerbill.org/article/2021/12/02/memory-allocation-strategies-006/ */
+
+typedef struct buddy_block_t{
+    os_size_t size;
+    os_bool_t is_free;
+}buddy_block_t;
+
+typedef struct buddy_t{
+    buddy_block_t* head;
+    buddy_block_t* tail;
+    int alignment;
+}buddy_t;
+
+/* ------------------------------------------------------------------------------------------------------------------ */
+/*  */
+
+void buddy_init(buddy_t* self, void* buf, os_size_t buf_size /*POWER_OF_2*/, os_size_t alignment /*POWER_OF_2*/);
+
+void buddy_destroy(buddy_t* self);
+
+void* buddy_alloc(buddy_t* self, os_size_t size);
+
+void* buddy_calloc(buddy_t* b, os_size_t count, os_size_t size);
+
+void* buddy_realloc(buddy_t* self, void* ptr, os_size_t size);
+
+void buddy_free(buddy_t* self, void* ptr);
+
+#endif /*INCLUDED_BUDDY_H*/