descrip.h File Reference

#include <sys/thread.h>
#include <sys/sysproto_posix.h>
#include <vfs/file.h>
#include <vfs/stat.h>
#include <sys/fcntl.h>

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Data Structures
struct	file
struct	fileOps
struct	ucred
struct	uio

Macros
#define	MAX_FILES   256

Typedefs
typedef int	fo_close_t(struct file *fp, struct thread *td)
typedef int	fo_rdwr_t(struct file *fp, struct uio *uio, struct ucred *active_cred, int flags, struct thread *td)
typedef int	fo_stat_t(struct file *fp, struct stat *sb, struct ucred *active_cred, struct thread *td)
typedef __mode_t	mode_t
typedef __nlink_t	nlink_t

Functions
int	close (struct thread *, struct close_args *)
int	falloc (struct thread *, struct file **, int *)
int	fcntl (struct thread *, struct sys_fcntl_args *)
int	fstat (struct thread *, struct sys_fstat_args *)
int	getdtablesize (struct thread *, struct getdtablesize_args *)
	return data table size More...
int	getfd (struct thread *td, struct file **fp, int fd)
	get pointer to file fd in specified thread More...
	int_kern_openat (struct thread *, int, char *, int)
int	ioctl (struct thread *, struct ioctl_args *)
	ioctl functionality not implimented yet More...

Macro Definition Documentation

MAX_FILES

#define MAX_FILES   256

Definition at line 42 of file descrip.h.

Typedef Documentation

fo_close_t

typedef int fo_close_t(struct file *fp, struct thread *td)

Definition at line 57 of file descrip.h.

fo_rdwr_t

typedef int fo_rdwr_t(struct file *fp, struct uio *uio, struct ucred *active_cred, int flags, struct thread *td)

Definition at line 55 of file descrip.h.

fo_stat_t

typedef int fo_stat_t(struct file *fp, struct stat *sb, struct ucred *active_cred, struct thread *td)

Definition at line 56 of file descrip.h.

mode_t

typedef __mode_t mode_t

Definition at line 44 of file descrip.h.

nlink_t

typedef __nlink_t nlink_t

Definition at line 45 of file descrip.h.

Function Documentation

close()

int close	(	struct thread *	,
		struct close_args *
	)

Definition at line 161 of file descrip.c.

References close_args::fd, kfree(), kprintf(), thread::o_files, and thread::td_retval.

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falloc()

int falloc	(	struct thread *	,
		struct file **	,
		int *
	)

Definition at line 97 of file descrip.c.

References kfree(), kmalloc(), MAX_FILES, and thread::o_files.

Referenced by kern_openat(), pipe(), sys_openat(), sys_pipe2(), and sys_socket().

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fcntl()

int fcntl	(	struct thread *	,
		struct sys_fcntl_args *
	)

Definition at line 41 of file descrip.c.

References sys_fcntl_args::arg, sys_fcntl_args::cmd, file::f_flag, fclose(), FCNTLFLAGS, sys_fcntl_args::fd, fdestroy(), FFLAGS, kmalloc(), kprintf(), MAX_FILES, memcpy(), O_ACCMODE, thread::o_files, and thread::td_retval.

Referenced by sys_fcntl().

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fstat()

int fstat	(	struct thread *	,
		struct sys_fstat_args *
	)

Definition at line 184 of file descrip.c.

References _current, sys_fstat_args::fd, kprintf(), thread::o_files, sys_fstat_args::sb, stat::st_blksize, stat::st_mode, and taskStruct::td.

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getdtablesize()

int getdtablesize	(	struct thread *	,
		struct getdtablesize_args *
	)

return data table size

Definition at line 175 of file descrip.c.

References kprintf(), O_FILES, and thread::td_retval.

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getfd()

int getfd	(	struct thread *	td,
		struct file **	fp,
		int	fd
	)

get pointer to file fd in specified thread

Returns

returns fp

Definition at line 213 of file descrip.c.

References file::fd, kprintf(), and thread::o_files.

Referenced by read(), sys_close(), sys_fchdir(), sys_fstat(), sys_fstatat(), sys_fstatfs(), sys_getdirentries(), sys_lseek(), sys_mmap(), sys_pread(), sys_read(), sys_sendto(), sys_setsockopt(), and sys_write().

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int_kern_openat()

int_kern_openat	(	struct thread *	,
		int	,
		char *	,
		int
	)

ioctl()

int ioctl	(	struct thread *	td,
		struct ioctl_args *	uap
	)

ioctl functionality not implimented yet

Returns

NULL for now

Definition at line 203 of file descrip.c.

References thread::td_retval.