limits.h

来自「fairysky系统,是一个小型的内核,模拟linux原始版本的」· C头文件 代码 · 共 31 行

#ifndef _LINUX_LIMITS_H
#define _LINUX_LIMITS_H

#define NAME_MAX 255

#define NR_TASKS 1024 

#define NR_OPEN 32              //一个进程打开的最大文件数
#define NR_INODE 128
#define NR_FILE 128
#define NR_SUPER 8
#define NR_HASH 307
#define BLOCK_SIZE 1024
#define BLOCK_SIZE_BITS 10
#define MAX_CHRDEV 16
#define MAX_BLKDEV 16

#define NGROUPS_MAX       32	/* supplemental group IDs are available */
#define ARG_MAX        40960	/* # bytes of args + environ for exec() */
#define CHILD_MAX        999    /* no limit :-) */
#define OPEN_MAX          32	/* # open files a process may have */
#define LINK_MAX         127	/* # links a file may have */
#define MAX_CANON        255	/* size of the canonical input queue */
#define MAX_INPUT        255	/* size of the type-ahead buffer */
#define NAME_MAX         255	/* # chars in a file name */
#define PATH_MAX        1024	/* # chars in a path name */
#define PIPE_BUF        4095	/* # bytes in atomic write to a pipe */

#endif