standard io

This article was reproduced from: http://blog.sina.com.cn/s/blog_63f31f3401013jrn.htmlLet's start by knowing what the standard IO and file io are.Standard IO: Standard I/O is a standard I/O model established by ANSI C and is defined in a standard

On a "chat chat synchronous, asynchronous, blocking and non-blocking" has been popular explanation, to understand the synchronous, asynchronous, blocking and non-blocking important two conceptual points, have not seen, it is recommended to read this

Issues in the previous section:Co-process: switch on IO operation.But when do you cut it back? How do I know I'm done with IO?first, the event-driven model introductionTypically, when we write a program that server processes a model, there are

Concept Description User space and kernel space Now that the operating system uses virtual memory, for 32-bit operating systems, its addressing space (virtual storage space) is 4G (2 of 32). The core of the operating system is the kernel,

This article was reproduced from: http://mp.weixin.qq.com/s?__biz=MzAxODI5ODMwOA==&mid=2666538919&idx=1&sn= 6013c451b5f14bf809aec77dd5df6cff&scene=21#wechat_redirectOn a "chat chat synchronous, asynchronous, blocking and non-blocking" has been

UNIX file io is for file descriptors, while standard IO operations revolve around streams. When a stream is initially created, it is not directed. If a multibyte IO function is used on an non-directed stream, the orientation of the stream is set to

Netty Series (i) Linux network IO Model I. BASIC conceptBefore formally starting the Linux IO model, let's introduce 5 basic concepts.1.1 User space and kernel spaceNow that the operating system is using virtual memory, the 32-bit operating system,

Event-driven introduction in general, when we write a server process model, there are several models: (1) Each request is received, a new process is created to process the request, (2) Each request is received, a new thread is created to process the

embedded Linux system Programming (III)--standard IO Library      with file io standard IO fopen fclose fread , fwrite io function, these functions are invoked on their own linux file io First,Standard buffering mechanism of

---restore content starts---Copy of 1.linux standard IO#include int main (int argc,char **argv){if (argc{printf ("Use:mycp file1 file2\n");return-1;}File *src=fopen (argv[1], "R");// Open source fileif (src==null){printf ("No