重置上传，新增了多个标准库，开始 TransPyV 自举实验

includes/memhub.py

@@ -84,7 +84,7 @@ class MemManager:
             string.memset(ptr, 0, total)
         return ptr
 
-    def realloc(self, ptr: t.CVoid | t.CPtr, old_size: t.CSizeT, new_size: t.CSizeT) -> t.CVoid | t.CPtr:
+    def realloc(self, ptr: t.CVoid | t.CPtr, new_size: t.CSizeT) -> t.CVoid | t.CPtr:
         if ptr is None:
             return self.alloc(new_size)
         if new_size == 0:
@@ -93,10 +93,7 @@ class MemManager:
         new_ptr: t.CVoid | t.CPtr = self.alloc(new_size)
         if new_ptr is None:
             return ptr
-        copy_size: t.CSizeT = old_size
-        if new_size < old_size:
-            copy_size = new_size
-        string.memcpy(new_ptr, ptr, copy_size)
+        # 基类无法追踪旧分配大小, 不复制数据; 子类可覆盖以保留数据
         self.free(ptr)
         return new_ptr
 
@@ -453,7 +450,7 @@ class MemBuddy(MemManager):
         return 1
 
     # realloc 覆盖: 伙伴系统从块头读取旧阶数, 无需 old_size
-    def realloc(self, ptr: t.CVoid | t.CPtr, old_size: t.CSizeT, new_size: t.CSizeT) -> t.CVoid | t.CPtr:
+    def realloc(self, ptr: t.CVoid | t.CPtr, new_size: t.CSizeT) -> t.CVoid | t.CPtr:
         if ptr is None:
             return self.alloc(new_size)
         if new_size == 0:
@@ -477,3 +474,48 @@ class MemBuddy(MemManager):
         string.memcpy(new_ptr, ptr, old_data_size)
         self.free(ptr)
         return new_ptr
+
+    # === 状态查询 ===
+
+    @property
+    def mem_size(self) -> t.CSizeT:
+        # 可用区总大小（2 的幂），分配上限为 mem_size - MEMBUDDY_HEADER_SIZE
+        return self.usable_size
+
+    def stats(self) -> t.CSizeT:
+        # 返回可用区总大小，用于状态统计
+        return self.usable_size
+
+    def free_count(self) -> t.CSizeT:
+        # 统计所有阶数空闲链中的块总数
+        count: t.CSizeT = 0
+        i: t.CInt
+        for i in range(MEMBUDDY_MAX_ORDERS + 1):
+            head_val: t.CUInt64T = self.free_lists[i]
+            cur: t.CVoid | t.CPtr = t.CVoid(head_val, t.CPtr)
+            while cur is not None:
+                count += 1
+                cur = t.CVoid(c.Deref(t.CUInt64T(cur, t.CPtr)), t.CPtr)
+        return count
+
+    def self_check(self) -> t.CInt:
+        # 验证伙伴分配器内部一致性，返回 0=OK，非 0=损坏
+        if self.usable is None:
+            return 0
+        i: t.CInt
+        for i in range(MEMBUDDY_MAX_ORDERS + 1):
+            head_val: t.CUInt64T = self.free_lists[i]
+            cur: t.CVoid | t.CPtr = t.CVoid(head_val, t.CPtr)
+            while cur is not None:
+                # 检查指针在可用区内
+                if t.CUInt64T(cur) < t.CUInt64T(self.usable):
+                    return 1
+                if t.CUInt64T(cur) >= t.CUInt64T(self.usable) + self.usable_size:
+                    return 2
+                # 检查对齐：order i 的块必须按 _block_size_at_order(i) 对齐
+                offset: t.CSizeT = t.CUInt64T(cur) - t.CUInt64T(self.usable)
+                bs: t.CSizeT = _block_size_at_order(i)
+                if offset % bs != 0:
+                    return 3
+                cur = t.CVoid(c.Deref(t.CUInt64T(cur, t.CPtr)), t.CPtr)
+        return 0