sys/src/sysdassgn.c File Reference

QIO deassign channel - TODO still more doc. More...

#include <starlet.h>
#include <iodef.h>
#include <ssdef.h>
#include <irpdef.h>
#include <ucbdef.h>
#include <ccbdef.h>
#include <system_data_cells.h>
#include <linux/vmalloc.h>
#include <linux/linkage.h>
#include <exe_routines.h>
#include <ioc_routines.h>
#include <sch_routines.h>

Go to the source code of this file.

Functions
asmlinkage int	exe_dassgn (unsigned short int chan)
	deassign channel

---

Detailed Description

QIO deassign channel - TODO still more doc.

Author:

Roar Thronæs

Definition in file sysdassgn.c.

---

Function Documentation

asmlinkage int exe_dassgn

(

unsigned short int

chan

)

deassign channel

Parameters:

chan

i/o channel

verify i/o channel

call exe_canceln, but not implemented, do $cancel instead

call verify_chan again, in case of asts - MISSING

check ccb_l_wind and close the file - MISSING

check ccb_w_ioc to see if outstanding i/o - MISSING

lock i/o db

clear ccb amod

disassociate eventual mailbox - MISSING

dec ucb ref count

checks and stuff to do if refc == 0 - MISSING

eventually do ioc_last_chan - MISSING

i/o db unlock

Definition at line 29 of file sysdassgn.c.

References _ccb::ccb_b_amod, _ccb::ccb_l_ucb, exe_cancel(), ioc_verify_chan(), sch_iolockw(), sch_iounlock(), and SS__NORMAL.