close.c File Reference

#include <xinu.h>

Include dependency graph for close.c:

Go to the source code of this file.

Functions
syscall	close (did32 descrp)

Function Documentation

close()

syscall close

(

did32

descrp

)

Definition at line 9 of file close.c.

References devtab, disable(), dentry::dvclose, isbaddev, restore(), and SYSERR.

Referenced by kill(), lfscreate(), xsh_cat(), and xsh_rdstest().

{
    intmask     mask;       /* Saved interrupt mask     */
    struct  dentry  *devptr;    /* Entry in device switch table */
    int32       retval;     /* Value to return to caller    */

    mask = disable();
    if (isbaddev(descrp)) {
        restore(mask);
        return SYSERR;
    }
    devptr = (struct dentry *) &devtab[descrp];
    retval = (*devptr->dvclose) (devptr);
    restore(mask);
    return retval;
}

Here is the call graph for this function:

Here is the caller graph for this function: