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Annotation of xinu/sys/dgclose.c, revision 1.1.1.1

1.1       root        1: /* dgclose.c - dgclose */
                      2: 
                      3: #include <conf.h>
                      4: #include <kernel.h>
                      5: #include <proc.h>
                      6: #include <network.h>
                      7: 
                      8: /*------------------------------------------------------------------------
                      9:  *  dgclose  -  close a datagram pseudo device, making it available again
                     10:  *------------------------------------------------------------------------
                     11:  */
                     12: dgclose(devptr)
                     13: struct devsw   *devptr;
                     14: {
                     15:        PStype  ps;
                     16:        struct  dgblk   *dgptr;
                     17:        struct  netq    *nqptr;
                     18:        int     nq;
                     19: 
                     20:        dgptr = (struct dgblk *) devptr->dvioblk;
                     21:        disable(ps);
                     22:        nq = dgptr->dg_netq;
                     23:        nqptr = &Net.netqs[nq];
                     24:        nqptr->valid = FALSE;
                     25:        nqptr->uport = -1;
                     26:        nqptr->pid = BADPID;
                     27:        dgptr->dg_state = DG_FREE;
                     28:        restore(ps);
                     29:        return(OK);
                     30: }
                     31: 

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