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Annotation of researchv10no/cmd/worm/oscsi/allocate.c, revision 1.1.1.1

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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