lua file:read(“a“) 一次性读取大文件的源码分析

最新推荐文章于 2025-01-03 23:08:53 发布

hp_cpp

最新推荐文章于 2025-01-03 23:08:53 发布

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分类专栏： lua基础

本文链接：https://blog.csdn.net/hp_cpp/article/details/107446194

版权

Lua读取文件时，一次性读取整个文件，输入文件的最大支持多大？

找了官网文档也没找到说明，于是索性去看lua的源码。

首先从liolib.c 开始看：

/*
** functions for 'io' library
*/
static const luaL_Reg iolib[] = {
   
  {
   "close", io_close},
  {
   "flush", io_flush},
  {
   "input", io_input},
  {
   "lines", io_lines},
  {
   "open", io_open},
  {
   "output", io_output},
  {
   "popen", io_popen},
  {
   "read", io_read},
  {
   "tmpfile", io_tmpfile},
  {
   "type", io_type},
  {
   "write", io_write},
  {
   NULL, NULL}
};


/*
** methods for file handles
*/
static const luaL_Reg flib[] = {
   
  {
   "close", f_close},
  {
   "flush", f_flush},
  {
   "lines", f_lines},
  {
   "read", f_read},
  {
   "seek", f_seek},
  {
   "setvbuf", f_setvbuf},
  {
   "write", f_write}