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

1.1     ! root        1: #define        _POSIX_SOURCE
        !             2: #include       <stddef.h>
        !             3: #include       <stdlib.h>
        !             4: #include       <unistd.h>
        !             5: #include       <stdio.h>
        !             6: #include       <string.h>
        !             7: #include       <errno.h>
        !             8: #include       <time.h>
        !             9: #include       "jukeface.h"
        !            10: #include       "jukebox.h"
        !            11: 
        !            12: allocate(Jukebox *j, char *vol_id, char *buf)
        !            13: {
        !            14:        int drive, sh;
        !            15:        char nbuf[512];
        !            16:        
        !            17:        if(j_rdshelves(j, buf)) /* read in shelf names */
        !            18:                return(-1);
        !            19:        if(j_shstatus(j, buf))  /* get the jukebox status */
        !            20:                return(-1);
        !            21:        sh = j_shelfof(j, vol_id);
        !            22:        if(sh >= 0){
        !            23:                sprintf(buf, "there is an existing '%s' on shelf %d", vol_id, sh);
        !            24:                return(-1);
        !            25:        }
        !            26:        sh = j_shelfof(j, UNALLOCATED);
        !            27:        if(sh < 0){
        !            28:                sprintf(buf, "no unallocated disks");
        !            29:                return(-1);
        !            30:        }
        !            31:        printf("using unallocated disk from shelf %d\n", sh);
        !            32:        drive = j->nluns-1;
        !            33:        if(j_sh_to_dr(sh, SIDEB, drive, buf) < 0)
        !            34:                return(-1);
        !            35:        sprintf(nbuf, "%sb", vol_id);
        !            36:        if(j_wvolid(drive, nbuf, buf))
        !            37:                return(-1);
        !            38:        j_wrshelf = 1;
        !            39:        j->names[sh] = strdup(vol_id);
        !            40:        j->shelves[sh] = 1;
        !            41:        if(j_dr_to_sh(drive, sh, SIDEB, buf) < 0)
        !            42:                return(-1);
        !            43:        if(j_sh_to_dr(sh, SIDEA, drive, buf) < 0)
        !            44:                return(-1);
        !            45:        sprintf(nbuf, "%sa", vol_id);
        !            46:        if(j_wvolid(drive, nbuf, buf))
        !            47:                return(-1);
        !            48:        if(j_dr_to_sh(drive, sh, SIDEA, buf) < 0)
        !            49:                return(-1);
        !            50:        return(0);
        !            51: }

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