vfs.c File Reference

#include <vfs/vfs.h>
#include <ubixos/vitals.h>
#include <lib/kmalloc.h>
#include <lib/kprintf.h>
#include <lib/string.h>
#include <sys/kern_descrip.h>

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Functions
int	sys_open (struct thread *td, struct open_args *uap)
	entry point for open syscall
int	vfs_init ()
fileSystem *	vfsFindFS (int vfsType)
int	vfsRegisterFS (struct fileSystem newFS)
	register a file system

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Function Documentation

int sys_open	(	struct thread *	td,
		struct open_args *	uap
	)

entry point for open syscall

Parameters:

	*td	pointer to callers thread
	*uap	pointer to user space arguements for call

Returns:

index to file descriptor

Definition at line 148 of file vfs.c.

References falloc(), file::fd, fopen(), open_args::path, file::path, strcpy, and thread::td_retval.

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int vfs_init

(

)

Definition at line 48 of file vfs.c.

References vitalsStruct::fileSystems, kprintf(), and systemVitals.

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struct fileSystem* vfsFindFS

(

int

vfsType

)

Definition at line 59 of file vfs.c.

References vitalsStruct::fileSystems, fileSystem::next, systemVitals, and fileSystem::vfsType.

Referenced by vfs_mount(), and vfsRegisterFS().

int vfsRegisterFS

(

struct fileSystem

newFS

)

register a file system

This registers a new filesystem into the vfs which is referenced when trying to mount a device

Parameters:

newFS

pointer to fileSystem structure

Definition at line 81 of file vfs.c.

References vitalsStruct::fileSystems, kmalloc(), kprintf(), memcpy(), fileSystem::next, NULL, fileSystem::prev, systemVitals, vfsFindFS(), fileSystem::vfsType, and x1.

Referenced by devfs_init(), ubixfs_init(), and ufs_init().

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