#FIG 3.2 Produced by xfig version 3.2.5c Landscape Center Inches Letter 100.00 Single -2 1200 2 5 1 0 1 -1 -1 0 0 -1 0.000 0 1 0 0 1650.000 3000.000 1650 2700 1350 3000 1650 3300 5 1 0 1 -1 -1 0 0 -1 0.000 0 1 0 0 1650.000 2250.000 1650 1950 1350 2250 1650 2550 6 3000 1200 3300 1500 1 3 0 1 0 7 100 0 -1 0.000 1 0.0000 3150 1350 100 100 3150 1350 3250 1350 4 1 0 100 0 -1 11 0.0000 6 120 105 3150 1425 P\001 -6 6 3000 1500 3300 1800 1 3 0 1 0 7 100 0 -1 0.000 1 0.0000 3150 1650 100 100 3150 1650 3250 1650 4 1 0 100 0 -1 11 0.0000 6 120 120 3150 1725 C\001 -6 6 1800 2250 2100 2550 1 3 0 1 0 7 100 0 -1 0.000 1 0.0000 1950 2400 100 100 1950 2400 2050 2400 4 1 0 100 0 -1 11 0.0000 6 120 105 1950 2475 P\001 -6 6 1500 2250 1800 2550 1 3 0 1 0 7 100 0 -1 0.000 1 0.0000 1650 2400 100 100 1650 2400 1750 2400 4 1 0 100 0 -1 11 0.0000 6 120 105 1650 2475 P\001 -6 6 3000 2775 3300 3075 1 3 0 1 0 7 100 0 -1 0.000 1 0.0000 3150 2925 100 100 3150 2925 3250 2925 4 1 0 100 0 -1 11 0.0000 6 120 120 3150 3000 C\001 -6 2 1 0 1 0 7 50 -1 -1 0.000 0 0 -1 0 0 4 1650 2550 2100 2550 2100 2700 1650 2700 2 1 0 2 4 7 100 0 -1 0.000 0 0 -1 1 0 2 1 1 1.00 60.00 120.00 2025 2400 4200 2550 2 1 1 2 1 7 100 0 -1 6.000 0 0 -1 1 0 2 1 1 1.00 60.00 120.00 3225 2925 4200 2700 2 1 0 1 -1 -1 0 0 -1 0.000 0 0 -1 0 0 5 3000 1200 3000 1800 2100 1800 2100 1950 1650 1950 2 1 1 2 1 7 100 0 -1 6.000 0 0 -1 1 0 2 1 1 1.00 60.00 120.00 2025 2400 3075 2925 2 1 0 2 0 7 100 0 -1 0.000 0 0 -1 1 0 2 1 1 1.00 60.00 120.00 3150 3000 3150 3450 2 1 1 2 1 7 100 0 -1 6.000 0 0 -1 1 0 2 1 1 1.00 60.00 120.00 3150 1425 3150 2850 2 1 0 1 -1 -1 0 0 -1 0.000 0 0 -1 0 0 2 1650 2999 2103 3002 2 1 0 1 -1 -1 0 0 -1 0.000 0 0 -1 0 0 2 1650 2250 2103 2253 2 1 0 1 -1 -1 0 0 -1 0.000 0 0 -1 0 0 9 3300 3450 4200 3450 4200 2775 4800 2775 4800 2475 4200 2475 4200 1800 3300 1800 3300 1200 2 1 0 1 -1 -1 0 0 -1 0.000 0 0 -1 0 0 4 1650 3300 2100 3300 2100 3450 3000 3450 4 2 -1 0 0 4 10 0.0000 2 120 405 2925 1425 insert\001 4 2 -1 0 0 4 10 0.0000 2 90 555 2925 1725 remove\001 4 0 -1 0 0 0 10 0.0000 2 150 465 3375 1575 calling\001 4 2 -1 0 0 4 10 0.0000 2 120 195 2025 3525 full\001 4 0 -1 0 0 0 10 0.0000 2 135 450 4275 2400 urgent\001 4 0 0 0 0 4 10 0.0000 2 150 1005 3200 2175 waitfor(insert)\001 4 1 4 0 0 4 10 0.0000 2 165 420 3525 2700 signal\001 4 2 -1 0 0 4 10 0.0000 2 150 450 2025 1875 empty\001 4 1 1 0 0 4 10 0.0000 2 165 945 3750 3075 signal\\_block\001 4 1 -1 0 0 0 10 0.0000 2 105 255 3150 3600 exit\001 4 2 -1 0 0 0 10 0.0000 2 105 720 1350 2675 conditions\001