{eval=Array;=+count(Array);}

问答专栏Q & A COLUMN

execl

CaicloudCaicloud 回答1 收藏2
问题描述:execl
收藏问题

1条回答

shleyZ

shleyZ

回答于2023-04-25 09:56

`execl` is a function in the C programming language that is used to replace the current process image with a new process image. The `execl` function is a member of the `exec` family of functions, which are used to execute a new process. The `execl` function specifically takes a path to an executable file as its first argument, followed by a list of arguments that will be passed to the new process. The last argument must be a NULL pointer. Here is the syntax for `execl` function:
int execl(const char *path, const char *arg0, const char *arg1, ..., const char *argn, (char *)0);
The first argument `path` specifies the path of the file to be executed. The remaining arguments `arg0`, `arg1`, and so on, represent the command-line arguments that will be passed to the new process. Upon successful execution of `execl`, the current process is replaced by the new process, and control is not returned to the calling process unless an error occurs. If an error occurs, the function returns -1. Note that the `execl` function replaces the current process image with the new process image, and as a result, the current process"s resources, such as open files and shared memory, are lost.
评论0 赞同0
  •  加载中...

相关问题

最新活动

您已邀请0人回答 查看邀请

我的邀请列表

  • 擅长该话题
  • 回答过该话题
  • 我关注的人
向帮助了您的网友说句感谢的话吧!
付费偷看金额在0.1-10元之间
<