import

2026-05-19 11:49:22 +08:00
commit add7af4222
96 changed files with 8635 additions and 0 deletions
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+#ifndef INCLUDED_ARENA_H
+#define INCLUDED_ARENA_H
+
+#ifndef INCLUDED_OS_TYPES_H
+#include <os_types.h>
+#endif /*INCLUDED_OS_TYPES_H*/
+
+/* ------------------------------------------------------------------------------------------------------------------ */
+/*  https://www.gingerbill.org/article/2019/02/08/memory-allocation-strategies-002/  */
+
+typedef struct arena_t{
+    uint8_t * buf;
+    os_size_t buf_size;
+    os_size_t prev_offset;
+    os_size_t curr_offset;
+}arena_t;
+
+typedef struct temp_arena_memory_t {
+    arena_t *arena;
+    size_t prev_offset;
+    size_t curr_offset;
+}temp_arena_memory_t;
+
+
+/* ------------------------------------------------------------------------------------------------------------------ */
+/*  */
+
+void arena_init(arena_t* self, uint8_t * buf, os_size_t buf_size);
+
+void* arena_alloc(arena_t* self, os_size_t size);
+
+void* arena_realloc(arena_t* self, void* old, os_size_t old_size, os_size_t new_size);
+
+// 不支持的操作
+//void arena_free(arena_t* self, void* ptr);
+
+void arean_destroy(arena_t* self);
+
+/* ------------------------------------------------------------------------------------------------------------------ */
+/*  */
+
+temp_arena_memory_t temp_arena_memory_begin(arena_t *a);
+
+void temp_arena_memory_end(temp_arena_memory_t temp);
+
+#endif /*INCLUDED_ARENA_H*/