130     PyArena* arena = (PyArena *)PyMem_Malloc(sizeof(PyArena));  in PyArena_New()  local
131     if (!arena)  in PyArena_New()
134     arena->a_head = block_new(DEFAULT_BLOCK_SIZE);  in PyArena_New()
135     arena->a_cur = arena->a_head;  in PyArena_New()
136     if (!arena->a_head) {  in PyArena_New()
137         PyMem_Free((void *)arena);  in PyArena_New()
140     arena->a_objects = PyList_New(0);  in PyArena_New()
141     if (!arena->a_objects) {  in PyArena_New()
142         block_free(arena->a_head);  in PyArena_New()
143         PyMem_Free((void *)arena);  in PyArena_New()
147     arena->total_allocs = 0;  in PyArena_New()
148     arena->total_size = 0;  in PyArena_New()
149     arena->total_blocks = 1;  in PyArena_New()
150     arena->total_block_size = DEFAULT_BLOCK_SIZE;  in PyArena_New()
151     arena->total_big_blocks = 0;  in PyArena_New()
153     return arena;  in PyArena_New()
157 PyArena_Free(PyArena *arena)  in PyArena_Free()  argument
159     assert(arena);  in PyArena_Free()
169     block_free(arena->a_head);  in PyArena_Free()
175     Py_DECREF(arena->a_objects);  in PyArena_Free()
176     PyMem_Free(arena);  in PyArena_Free()
180 PyArena_Malloc(PyArena *arena, size_t size)  in PyArena_Malloc()  argument
182     void *p = block_alloc(arena->a_cur, size);  in PyArena_Malloc()
186     arena->total_allocs++;  in PyArena_Malloc()
187     arena->total_size += size;  in PyArena_Malloc()
190     if (arena->a_cur->ab_next) {  in PyArena_Malloc()
191         arena->a_cur = arena->a_cur->ab_next;  in PyArena_Malloc()
193         arena->total_blocks++;  in PyArena_Malloc()
194         arena->total_block_size += arena->a_cur->ab_size;  in PyArena_Malloc()
195         if (arena->a_cur->ab_size > DEFAULT_BLOCK_SIZE)  in PyArena_Malloc()
196             ++arena->total_big_blocks;  in PyArena_Malloc()
203 PyArena_AddPyObject(PyArena *arena, PyObject *obj)  in PyArena_AddPyObject()  argument
205     int r = PyList_Append(arena->a_objects, obj);  in PyArena_AddPyObject()