78 lines
1.7 KiB
C
78 lines
1.7 KiB
C
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/*
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* Copyright (c) 1991 by the University of Washington
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* Copyright (c) 1993 by the University of Southern California
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*
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* For copying and distribution information, please see the files
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* <uw-copyright.h> and <usc-copyr.h>.
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*/
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#include <uw-copyright.h>
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#include <usc-copyr.h>
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#include <ardp.h>
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#include <pfs.h>
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#include <perrno.h>
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static assign_priority();
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arch_prioritize_request(r1,r2)
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RREQ r1,r2;
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{
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if(!r1->pf_priority)
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r1->pf_priority = assign_priority(r1);
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if(!r2->pf_priority)
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r2->pf_priority = assign_priority(r2);
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if(r1->pf_priority == r2->pf_priority) return(0);
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else if (r1->pf_priority < r2->pf_priority) return(-1);
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else return(1);
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}
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static assign_priority(r1)
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RREQ r1;
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{
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char *arg_ptr;
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int maxhit = 0;
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int maxmatch = 0;
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int maxhitpm = 0;
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int offset;
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char stype;
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int tmp;
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int retval;
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/* Result is probably cached, use it or lose it */
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if(r1->prcvd_thru > 0) return(2);
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arg_ptr = sindex(r1->rcvd->start,"ARCHIE");
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if(!arg_ptr) return(1);
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arg_ptr = sindex(arg_ptr,"MATCH");
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if(!arg_ptr) return(3);
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tmp = sscanf(arg_ptr,"MATCH(%d,%d,%d,%d,%c",&maxhit,&maxmatch,
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&maxhitpm,&offset,&stype);
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if(tmp != 5) tmp = sscanf(arg_ptr,"MATCH(%d,%d,%c",&maxhit,
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&offset,&stype);
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if(tmp < 3) return(4);
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if(stype == '=') retval = 0;
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else if ((stype == 'r') || (stype == 'x')) retval = 700;
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else if ((stype == 'R') || (stype == 'X')) retval = 800;
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else retval = 100;
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/* If old format request, then add penalty */
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if(tmp != 5) retval += 100;
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tmp = maxhit;
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if(offset > 0) tmp += offset;
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if(tmp > 10000) retval += 10000;
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else if (tmp > 100) retval+= tmp;
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else retval+= 100;
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if(sindex(arg_ptr,"gif") || sindex(arg_ptr,"GIF")) retval += 20000;
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return(retval);
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}
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