m = PyObject_GC_New(PyModuleObject, &PyModule_Type);if(m ==NULL)returnNULL; m->md_def =NULL; m->md_state =NULL; m->md_dict = PyDict_New();if(m->md_dict ==NULL)gotofail;if(PyDict_SetItemString(m->md_dict,"__name__", name) !=0)gotofail;if(PyDict_SetItemString(m->...
Python是一门有垃圾回收机制(GC)的语言,和Java的GC原理不同,其采用简单的引用计数作为内存跟踪方法。 目前主流的垃圾回收机制的内存跟踪方法有两种,一是引用计数,二是可达性分析。引用计数的思想是当创建一个对象的实例并在堆上申请内存时,对象的引用计数就为1,在其他对象中需要持有这个对象时,就需要把该对象的引用...
allocfunc tp_alloc; newfunc tp_new; freefunc tp_free; /* Low-level free-memory routine */ inquiry tp_is_gc; /* For PyObject_IS_GC */ PyObject *tp_bases; PyObject *tp_mro; /* method resolution order */ PyObject *tp_cache; PyObject *tp_subclasses; PyObject *tp_weaklist; destr...
allocfunc tp_alloc; newfunc tp_new; freefunc tp_free;/* Low-level free-memory routine */inquiry tp_is_gc;/* For PyObject_IS_GC */PyObject *tp_bases; PyObject *tp_mro;/* method resolution order */PyObject *tp_cache; PyObject *tp_subclasses; PyObject *tp_weaklist; destructor tp_...
allocfunctp_alloc;newfunctp_new;freefunctp_free; /* Low-level free-memory routine */inquirytp_is_gc; /* For PyObject_IS_GC */PyObject*tp_bases;PyObject*tp_mro; /* method resolution order */PyObject*tp_cache;PyObject*tp_subclasses;PyObject*tp_weaklist;destructortp_del;unsignedint tp...
{ PyObject_VAR_HEAD PyObject *ob_item...ob_item: 一个长度为 1 的存储内容为 PyObject * 的数组 tuple 和 list 相似,本质也是一个数组,但是空间大小固定。...*)) / sizeof(PyObject *)) { return PyErr_NoMemory(); } op = PyObject_GC_NewVar...(op); return (PyObject *) op; } 从...
计算机来说, 一个'对象'实际上就是一片被分配的内存空间,18这些内存可以是连续的, 也可以是离散的. 这片内存在更高的层面上被作为一个'整体'来考虑和处理, 这个整体就是一个'对象'(对计算机来说)19而在这片内存中存储着一系列的数据以及可以对这些数据进行操作(修改,读取,运行等)的代码(字节码).2021如...
内存泄漏是指程序在运行过程中分配的内存空间没有被正确释放,导致内存资源的浪费和程序性能下降的问题。对于PyObject或PyFloat转换的内存泄漏问题,可以从以下几个方面进行解答: 1. 概念:P...
newfunc tp_new;freefunc tp_free;/* Low-level free-memory routine */inquiry tp_is_gc;/* For PyObject_IS_GC */PyObject*tp_bases;PyObject*tp_mro;/* method resolution order */PyObject*tp_cache;PyObject*tp_subclasses;PyObject*tp_weaklist;destructor tp_del;/* Type attribute cache version...
result =_PyObject_CallMethodId(gc_module, &PyId_enable,NULL);if(result ==NULL)return1; Py_DECREF(result);return0; } 开发者ID:BreakawayConsulting,项目名称:python,代码行数:13,代码来源:_posixsubprocess.c 示例14: FNFCISTATUS ▲点赞 1▼ ...