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

1.1       root        1: /* rfio.c - rfio */
                      2: 
                      3: #include <conf.h>
                      4: #include <kernel.h>
                      5: #include <network.h>
                      6: 
                      7: /*------------------------------------------------------------------------
                      8:  *  rfio  --  perform input or output using remote file server
                      9:  *------------------------------------------------------------------------
                     10:  */
                     11: rfio(devptr, rop, buff, len)
                     12: struct devsw   *devptr;
                     13: int    rop;
                     14: char   *buff;
                     15: int    len;
                     16: {
                     17:        struct  rfblk   *rfptr;
                     18:        int     retcode;
                     19: 
                     20:        rfptr = (struct rfblk *)devptr->dvioblk;
                     21:        wait(rfptr->rf_mutex);
                     22:        if (len < 0 || rfptr->rf_state == RFREE) {
                     23:                signal(rfptr->rf_mutex);
                     24:                return(SYSERR);
                     25:        }
                     26:        retcode = rfmkpac(rop, rfptr->rf_name, &rfptr->rf_pos, buff, len);
                     27:        signal(rfptr->rf_mutex);
                     28:        return(retcode);
                     29: }

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