s_io.h

类似apache2.0的多线程技术,目的在于解决网络服务器在并发客户数很大的情况下服务器进程分配(fork)而带来的效率瓶颈.

#ifndef _S_IO_H

#define _S_IO_H

typedef struct s_stream {
    int fd;     // 套接字描述符。
    char ch;    // s_ungetc()用的。
    int num;
} S_STREAM;

struct s_stream *s_open(int fd);
int s_close(struct s_stream *sp);

int s_read(void *ptr, int size, int nmemb, struct s_stream *sp);
int s_write(void *ptr, int size, int nmemb, struct s_stream *sp);

int s_putc(char c, struct s_stream *sp);
int s_puts(char *s, struct s_stream *sp);

char s_getc(struct s_stream *sp);
int s_gets(char *s, int size, struct s_stream *sp);

int s_ungetc(char c, struct s_stream *sp);

#endif