日本免费全黄少妇一区二区三区-高清无码一区二区三区四区-欧美中文字幕日韩在线观看-国产福利诱惑在线网站-国产中文字幕一区在线-亚洲欧美精品日韩一区-久久国产精品国产精品国产-国产精久久久久久一区二区三区-欧美亚洲国产精品久久久久

  1. 首頁 > 云知道 > >

Linux 核心--16.Linux數(shù)據(jù)結(jié)構(gòu)( 三 )

云知道


struct　inode　*　f_inode;
struct　file_operations　*　f_op;
unsigned　long　f_version;
void　*private_data;/*　needed　for　tty　driver,　and　maybe　others　*/
};

files_struct
描敘被某進程打開的所有文件 。

struct　files_struct　{
int　count;
fd_set　close_on_exec;
fd_set　open_fds;
struct　file　*　fd[NR_OPEN];
};

fs_struct

struct　fs_struct　{
int　count;
unsigned　short　umask;
struct　inode　*　root,　*　pwd;
};

gendisk
包含關(guān)于某個硬盤的信息 。用于磁盤初始化與分區(qū)檢查時 。

struct　hd_struct　{
long　start_sect;
long　nr_sects;
};

struct　gendisk　{
int　major;　/*　major　number　of　driver　*/
const　char　*major_name;/*　name　of　major　driver　*/
int　minor_shift;　/*　number　of　times　minor　is　shifted　to
get　real　minor　*/
int　max_p;　/*　maximum　partitions　per　device　*/
int　max_nr;/*　maximum　number　of　real　devices　*/

void　(*init)(struct　gendisk　*);
　/*　Initialization　called　before　we
do　our　thing　*/
struct　hd_struct　*part;/*　partition　table　*/
int　*sizes;/*　device　size　in　blocks,　copied　to
blk_size[]　*/
int　nr_real;　/*　number　of　real　devices　*/

void　*real_devices;/*　internal　use　*/
struct　gendisk　*next;
};

inode
此VFS　inode結(jié)構(gòu)描敘磁盤上一個文件或目錄的信息 。

struct　inode　{
kdev_t　i_dev;
unsigned　longi_ino;
umode_ti_mode;
nlink_ti_nlink;
uid_ti_uid;
gid_ti_gid;
kdev_t　i_rdev;
off_ti_size;
time_t　i_atime;
time_t　i_mtime;
time_t　i_ctime;
unsigned　longi_blksize;
unsigned　longi_blocks;
unsigned　longi_version;
unsigned　longi_nrpages;
struct　semaphore　i_sem;
struct　inode_operations*i_op;
struct　super_block　*i_sb;
struct　wait_queue*i_wait;
struct　file_lock　*i_flock;
struct　vm_area_struct*i_mmap;
struct　page*i_pages;
struct　dquot　*i_dquot[MAXQUOTAS];
struct　inode　*i_next,　*i_prev;
struct　inode　*i_hash_next,　*i_hash_prev;
struct　inode　*i_bound_to,　*i_bound_by;
struct　inode　*i_mount;
unsigned　short　i_count;
unsigned　short　i_flags;
unsigned　chari_lock;
unsigned　chari_dirt;
unsigned　chari_pipe;
unsigned　chari_sock;
unsigned　chari_seek;
unsigned　chari_update;
unsigned　short　i_writecount;
union　{
struct　pipe_inode_info　pipe_i;
struct　minix_inode_infominix_i;
struct　ext_inode_infoext_i;
struct　ext2_inode_info　ext2_i;
struct　hpfs_inode_info　hpfs_i;
struct　msdos_inode_infomsdos_i;
struct　umsdos_inode_info　umsdos_i;
struct　iso_inode_infoisofs_i;
struct　nfs_inode_infonfs_i;
struct　xiafs_inode_infoxiafs_i;
struct　sysv_inode_info　sysv_i;
struct　affs_inode_info　affs_i;
struct　ufs_inode_infoufs_i;
struct　socketsocket_i;
void　*generic_ip;
}　u;
};

ipc_perm
此結(jié)構(gòu)描敘對一個系統(tǒng)V　IPC對象的存取權(quán)限 。

struct　ipc_perm
{
key_tkey;
ushort　uid;　/*　owner　euid　and　egid　*/
ushort　gid;
ushort　cuid;/*　creator　euid　and　egid　*/
ushort　cgid;
ushort　mode;/*　access　modes　see　mode　flags　below　*/
ushort　seq;　/*　sequence　number　*/
};

irqaction
用來描敘系統(tǒng)的中斷處理過程 。

struct　irqaction　{
void　(*handler)(int,　void　*,　struct　pt_regs　*);
unsigned　long　flags;
unsigned　long　mask;
const　char　*name;
void　*dev_id;
struct　irqaction　*next;
};

linux_binfmt
用來表示可被Linux理解的二進制文件格式 。

struct　linux_binfmt　{

推薦閱讀