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Annotation of researchv10no/cmd/worm/oscsi/allocate.c, revision 1.1

1.1     ! root        1: #include       <stddef.h>
        !             2: #include       <stdio.h>
        !             3: #include       <string.h>
        !             4: #include       "scsi.h"
        !             5: #include       "juke.h"
        !             6: 
        !             7: allocate(char *vol_id, char *buf)
        !             8: {
        !             9:        int drive, sh;
        !            10:        char nbuf[512];
        !            11:        
        !            12:        if(j_rdshelves(buf))    /* read in shelf names */
        !            13:                return(-1);
        !            14:        if(j_getstatus(buf))    /* get the jukebox status */
        !            15:                return(-1);
        !            16:        sh = j_shelfof(vol_id);
        !            17:        if(sh >= 0){
        !            18:                sprintf(buf, "there is an existing '%s' on shelf %d", vol_id, sh);
        !            19:                return(-1);
        !            20:        }
        !            21:        sh = j_shelfof(UNALLOCATED);
        !            22:        if(sh < 0){
        !            23:                sprintf(buf, "no unallocated disks");
        !            24:                return(-1);
        !            25:        }
        !            26:        printf("using unallocated disk from shelf %d\n", sh);
        !            27:        drive = min(nlun+1, NLUN-1);
        !            28:        if(j_shelf_to_drive(sh, SIDEB, drive, buf) < 0)
        !            29:                return(-1);
        !            30:        sprintf(nbuf, "%sb", vol_id);
        !            31:        if(j_wvolid(drive, nbuf, buf))
        !            32:                return(-1);
        !            33:        j_wrshelf = 1;
        !            34:        j_shelf[sh] = strdup(vol_id);
        !            35:        if(j_drive_to_shelf(drive, sh, SIDEB, buf) < 0)
        !            36:                return(-1);
        !            37:        if(j_shelf_to_drive(sh, SIDEA, drive, buf) < 0)
        !            38:                return(-1);
        !            39:        sprintf(nbuf, "%sa", vol_id);
        !            40:        if(j_wvolid(drive, nbuf, buf))
        !            41:                return(-1);
        !            42:        if(j_drive_to_shelf(drive, sh, SIDEA, buf) < 0)
        !            43:                return(-1);
        !            44:        return(0);
        !            45: }

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