xv6/sysfile.c File Reference

#include "types.h"
#include "defs.h"
#include "param.h"
#include "stat.h"
#include "mmu.h"
#include "proc.h"
#include "fs.h"
#include "file.h"
#include "fcntl.h"

Go to the source code of this file.

Functions
static int	argfd (int n, int *pfd, struct file **pf)
static int	fdalloc (struct file *f)
int	sys_dup (void)
int	sys_read (void)
int	sys_write (void)
int	sys_close (void)
int	sys_fstat (void)
int	sys_link (void)
static int	isdirempty (struct inode *dp)
int	sys_unlink (void)
static struct inode *	create (char *path, short type, short major, short minor)
int	sys_open (void)
int	sys_mkdir (void)
int	sys_mknod (void)
int	sys_chdir (void)
int	sys_exec (void)
int	sys_pipe (void)

---

Function Documentation

static int argfd	(	int	n,
		int *	pfd,
		struct file **	pf
	)			[static]

Definition at line 14 of file sysfile.c.

References argint(), and NOFILE.

Referenced by sys_close(), sys_dup(), sys_fstat(), sys_read(), and sys_write().

static struct inode* create	(	char *	path,
		short	type,
		short	major,
		short	minor
	)			[static, read]

Definition at line 213 of file sysfile.c.

References inode::dev, dirlink(), dirlookup(), DIRSIZ, ialloc(), ilock(), inode::inum, iunlockput(), iupdate(), inode::major, inode::minor, name, nameiparent(), inode::nlink, panic(), T_DIR, T_FILE, and inode::type.

Referenced by sys_mkdir(), sys_mknod(), and sys_open().

static int fdalloc

(

struct file *

f

)

[static]

Definition at line 33 of file sysfile.c.

References NOFILE.

Referenced by sys_dup(), sys_open(), and sys_pipe().

static int isdirempty

(

struct inode *

dp

)

[static]

Definition at line 149 of file sysfile.c.

References panic(), readi(), and inode::size.

Referenced by sys_unlink().

int sys_chdir

(

void

)

Definition at line 327 of file sysfile.c.

References argstr(), ilock(), iput(), iunlock(), iunlockput(), namei(), T_DIR, and inode::type.

int sys_close

(

void

)

Definition at line 85 of file sysfile.c.

References argfd(), and fileclose().

int sys_dup

(

void

)

Definition at line 47 of file sysfile.c.

References argfd(), fdalloc(), and filedup().

int sys_exec

(

void

)

Definition at line 346 of file sysfile.c.

References argint(), argstr(), argv, exec(), fetchint(), fetchstr(), memset(), and NELEM.

int sys_fstat

(

void

)

Definition at line 98 of file sysfile.c.

References argfd(), argptr(), and filestat().

int sys_link

(

void

)

Definition at line 110 of file sysfile.c.

References argstr(), inode::dev, dirlink(), DIRSIZ, ilock(), inode::inum, iput(), iunlock(), iunlockput(), iupdate(), name, namei(), nameiparent(), inode::nlink, T_DIR, and inode::type.

int sys_mkdir

(

void

)

Definition at line 298 of file sysfile.c.

References argstr(), create(), iunlockput(), and T_DIR.

int sys_mknod

(

void

)

Definition at line 310 of file sysfile.c.

References argint(), argstr(), create(), iunlockput(), inode::major, inode::minor, and T_DEV.

int sys_open

(

void

)

Definition at line 257 of file sysfile.c.

References argint(), argstr(), create(), fdalloc(), filealloc(), fileclose(), ilock(), file::ip, iunlock(), iunlockput(), namei(), O_CREATE, O_RDONLY, O_RDWR, O_WRONLY, file::off, file::readable, T_DIR, T_FILE, file::type, inode::type, and file::writable.

int sys_pipe

(

void

)

Definition at line 371 of file sysfile.c.

References argptr(), fdalloc(), fileclose(), and pipealloc().

int sys_read

(

void

)

Definition at line 61 of file sysfile.c.

References argfd(), argint(), argptr(), and fileread().

int sys_unlink

(

void

)

Definition at line 164 of file sysfile.c.

References argstr(), dirlookup(), DIRSIZ, ilock(), isdirempty(), iunlockput(), iupdate(), memset(), name, namecmp(), nameiparent(), inode::nlink, panic(), T_DIR, inode::type, and writei().

int sys_write

(

void

)

Definition at line 73 of file sysfile.c.

References argfd(), argint(), argptr(), and filewrite().