diff -r 5526520f323f -r 7920ca086e5c doc/images/master-locks.eps
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/doc/images/master-locks.eps	Mon Sep 25 15:53:33 2006 +0000
@@ -0,0 +1,254 @@
+%!PS-Adobe-2.0 EPSF-2.0
+%%Title: master-locks.fig
+%%Creator: fig2dev Version 3.2 Patchlevel 4
+%%CreationDate: Fri Jul 21 18:34:19 2006
+%%For: fp@jupiter (Florian Pose)
+%%BoundingBox: 0 0 365 161
+%%Magnification: 1.0000
+%%EndComments
+/$F2psDict 200 dict def
+$F2psDict begin
+$F2psDict /mtrx matrix put
+/col-1 {0 setgray} bind def
+/col0 {0.000 0.000 0.000 srgb} bind def
+/col1 {0.000 0.000 1.000 srgb} bind def
+/col2 {0.000 1.000 0.000 srgb} bind def
+/col3 {0.000 1.000 1.000 srgb} bind def
+/col4 {1.000 0.000 0.000 srgb} bind def
+/col5 {1.000 0.000 1.000 srgb} bind def
+/col6 {1.000 1.000 0.000 srgb} bind def
+/col7 {1.000 1.000 1.000 srgb} bind def
+/col8 {0.000 0.000 0.560 srgb} bind def
+/col9 {0.000 0.000 0.690 srgb} bind def
+/col10 {0.000 0.000 0.820 srgb} bind def
+/col11 {0.530 0.810 1.000 srgb} bind def
+/col12 {0.000 0.560 0.000 srgb} bind def
+/col13 {0.000 0.690 0.000 srgb} bind def
+/col14 {0.000 0.820 0.000 srgb} bind def
+/col15 {0.000 0.560 0.560 srgb} bind def
+/col16 {0.000 0.690 0.690 srgb} bind def
+/col17 {0.000 0.820 0.820 srgb} bind def
+/col18 {0.560 0.000 0.000 srgb} bind def
+/col19 {0.690 0.000 0.000 srgb} bind def
+/col20 {0.820 0.000 0.000 srgb} bind def
+/col21 {0.560 0.000 0.560 srgb} bind def
+/col22 {0.690 0.000 0.690 srgb} bind def
+/col23 {0.820 0.000 0.820 srgb} bind def
+/col24 {0.500 0.190 0.000 srgb} bind def
+/col25 {0.630 0.250 0.000 srgb} bind def
+/col26 {0.750 0.380 0.000 srgb} bind def
+/col27 {1.000 0.500 0.500 srgb} bind def
+/col28 {1.000 0.630 0.630 srgb} bind def
+/col29 {1.000 0.750 0.750 srgb} bind def
+/col30 {1.000 0.880 0.880 srgb} bind def
+/col31 {1.000 0.840 0.000 srgb} bind def
+
+end
+save
+newpath 0 161 moveto 0 0 lineto 365 0 lineto 365 161 lineto closepath clip newpath
+-61.6 306.9 translate
+1 -1 scale
+
+/cp {closepath} bind def
+/ef {eofill} bind def
+/gr {grestore} bind def
+/gs {gsave} bind def
+/sa {save} bind def
+/rs {restore} bind def
+/l {lineto} bind def
+/m {moveto} bind def
+/rm {rmoveto} bind def
+/n {newpath} bind def
+/s {stroke} bind def
+/sh {show} bind def
+/slc {setlinecap} bind def
+/slj {setlinejoin} bind def
+/slw {setlinewidth} bind def
+/srgb {setrgbcolor} bind def
+/rot {rotate} bind def
+/sc {scale} bind def
+/sd {setdash} bind def
+/ff {findfont} bind def
+/sf {setfont} bind def
+/scf {scalefont} bind def
+/sw {stringwidth} bind def
+/tr {translate} bind def
+/tnt {dup dup currentrgbcolor
+  4 -2 roll dup 1 exch sub 3 -1 roll mul add
+  4 -2 roll dup 1 exch sub 3 -1 roll mul add
+  4 -2 roll dup 1 exch sub 3 -1 roll mul add srgb}
+  bind def
+/shd {dup dup currentrgbcolor 4 -2 roll mul 4 -2 roll mul
+  4 -2 roll mul srgb} bind def
+ /DrawEllipse {
+	/endangle exch def
+	/startangle exch def
+	/yrad exch def
+	/xrad exch def
+	/y exch def
+	/x exch def
+	/savematrix mtrx currentmatrix def
+	x y tr xrad yrad sc 0 0 1 startangle endangle arc
+	closepath
+	savematrix setmatrix
+	} def
+
+/$F2psBegin {$F2psDict begin /$F2psEnteredState save def} def
+/$F2psEnd {$F2psEnteredState restore end} def
+
+$F2psBegin
+10 setmiterlimit
+0 slj 0 slc
+ 0.06299 0.06299 sc
+%
+% Fig objects follow
+%
+% 
+% here starts figure with depth 51
+% Polyline
+7.500 slw
+n 1140 2520 m 990 2520 990 3900 150 arcto 4 {pop} repeat
+  990 4050 3180 4050 150 arcto 4 {pop} repeat
+  3330 4050 3330 2670 150 arcto 4 {pop} repeat
+  3330 2520 1140 2520 150 arcto 4 {pop} repeat
+ cp gs col7 1.00 shd ef gr gs col0 s gr 
+% Polyline
+n 4260 2340 m 4140 2340 4140 4740 120 arcto 4 {pop} repeat
+  4140 4860 6630 4860 120 arcto 4 {pop} repeat
+  6750 4860 6750 2460 120 arcto 4 {pop} repeat
+  6750 2340 4260 2340 120 arcto 4 {pop} repeat
+ cp gs col7 1.00 shd ef gr gs col0 s gr 
+% Ellipse
+n 1665 3278 360 360 0 360 DrawEllipse gs col0 s gr
+
+/Helvetica ff 180.00 scf sf
+1665 3323 m
+gs 1 -1 sc (RT) dup sw pop 2 div neg 0 rm  col0 sh gr
+% Arc
+n 2745.0 3645.0 180.0 180.0 0.0 arc
+gs col0 s gr
+
+% Arc
+n 2745.0 3645.0 90.0 180.0 0.0 arc
+gs col0 s gr
+
+% Ellipse
+n 2745 3780 45 45 0 360 DrawEllipse gs 0.00 setgray ef gr gs col0 s gr
+
+% Polyline
+n 2565 3645 m 2520 3645 2520 3915 45 arcto 4 {pop} repeat
+  2520 3960 2925 3960 45 arcto 4 {pop} repeat
+  2970 3960 2970 3690 45 arcto 4 {pop} repeat
+  2970 3645 2565 3645 45 arcto 4 {pop} repeat
+ cp gs col0 s gr 
+% Polyline
+n 2745 3780 m 2700 3915 l 2790 3915 l
+ cp gs 0.00 setgray ef gr gs col0 s gr 
+% Ellipse
+n 5445 4320 360 360 0 360 DrawEllipse gs col0 s gr
+
+/Helvetica ff 180.00 scf sf
+5445 4365 m
+gs 1 -1 sc (EoE) dup sw pop 2 div neg 0 rm  col0 sh gr
+% Ellipse
+n 5938 3231 631 444 0 360 DrawEllipse gs col0 s gr
+
+% Polyline
+2 slj
+gs  clippath
+2506 3765 m 2552 3727 l 2457 3610 l 2510 3722 l 2410 3648 l cp
+eoclip
+n 2025 3375 m 2027 3375 l 2031 3375 l 2039 3376 l 2049 3377 l 2062 3378 l
+ 2077 3381 l 2094 3384 l 2113 3390 l 2134 3398 l 2158 3408 l
+ 2185 3423 l 2216 3441 l 2250 3465 l 2277 3486 l 2304 3507 l
+ 2329 3529 l 2352 3550 l 2374 3571 l 2394 3592 l 2413 3612 l
+ 2431 3631 l 2448 3651 l 2464 3669 l 2479 3686 l 2492 3701 l
+ 2502 3713 l
+ 2520 3735 l gs col0 s gr gr
+
+% arrowhead
+0 slj
+n 2410 3648 m 2510 3722 l 2457 3610 l 2410 3648 l  cp gs 0.00 setgray ef gr  col0 s
+% Polyline
+2 slj
+gs  clippath
+2942 3715 m 2971 3768 l 3103 3696 l 2984 3727 l 3075 3643 l cp
+eoclip
+n 5220 4005 m 5219 4004 l 5217 4002 l 5214 3998 l 5209 3992 l 5202 3984 l
+ 5192 3972 l 5180 3959 l 5165 3942 l 5148 3923 l 5128 3902 l
+ 5106 3879 l 5082 3854 l 5055 3829 l 5027 3802 l 4998 3774 l
+ 4967 3747 l 4934 3719 l 4899 3692 l 4863 3665 l 4826 3638 l
+ 4786 3612 l 4744 3587 l 4700 3563 l 4652 3539 l 4602 3517 l
+ 4549 3496 l 4492 3477 l 4431 3459 l 4367 3443 l 4300 3430 l
+ 4230 3420 l 4167 3414 l 4105 3410 l 4043 3409 l 3983 3411 l
+ 3925 3414 l 3868 3419 l 3814 3426 l 3761 3434 l 3710 3444 l
+ 3661 3455 l 3613 3467 l 3567 3480 l 3521 3494 l 3477 3508 l
+ 3434 3523 l 3391 3539 l 3350 3555 l 3310 3572 l 3272 3588 l
+ 3234 3605 l 3199 3621 l 3165 3637 l 3134 3652 l 3105 3666 l
+ 3078 3679 l 3055 3691 l 3034 3701 l 3017 3710 l 3003 3718 l
+ 2991 3724 l 2983 3728 l
+ 2970 3735 l gs col0 s gr gr
+
+% arrowhead
+0 slj
+n 3075 3643 m 2984 3727 l 3103 3696 l 3075 3643 l  cp gs 0.00 setgray ef gr  col0 s
+% Polyline
+2 slj
+gs  clippath
+5327 3223 m 5322 3163 l 5171 3176 l 5294 3196 l 5177 3236 l cp
+eoclip
+n 2025 3285 m 2026 3285 l 2028 3285 l 2031 3285 l 2037 3285 l 2045 3285 l
+ 2056 3286 l 2070 3286 l 2087 3286 l 2108 3287 l 2132 3287 l
+ 2159 3288 l 2189 3288 l 2223 3289 l 2259 3289 l 2298 3290 l
+ 2339 3291 l 2383 3291 l 2428 3292 l 2475 3293 l 2524 3293 l
+ 2574 3294 l 2626 3295 l 2678 3295 l 2732 3296 l 2787 3296 l
+ 2843 3296 l 2900 3296 l 2958 3297 l 3018 3297 l 3079 3297 l
+ 3142 3296 l 3207 3296 l 3273 3296 l 3342 3295 l 3412 3294 l
+ 3485 3293 l 3559 3292 l 3635 3290 l 3713 3289 l 3792 3287 l
+ 3870 3285 l 3960 3282 l 4048 3280 l 4133 3277 l 4213 3273 l
+ 4289 3270 l 4361 3267 l 4430 3264 l 4494 3260 l 4555 3257 l
+ 4612 3253 l 4667 3250 l 4719 3247 l 4769 3243 l 4816 3240 l
+ 4862 3236 l 4906 3233 l 4948 3229 l 4988 3226 l 5026 3223 l
+ 5063 3219 l 5097 3216 l 5129 3213 l 5159 3210 l 5186 3208 l
+ 5211 3205 l 5233 3203 l 5252 3201 l 5268 3199 l 5281 3198 l
+ 5291 3197 l 5299 3196 l
+ 5310 3195 l gs col0 s gr gr
+
+% arrowhead
+0 slj
+n 5177 3236 m 5294 3196 l 5171 3176 l 5177 3236 l  cp gs 0.00 setgray ef gr  col0 s
+% Polyline
+2 slj
+gs  clippath
+5520 3567 m 5481 3522 l 5367 3621 l 5478 3566 l 5406 3667 l cp
+eoclip
+n 5355 3960 m 5354 3958 l 5353 3952 l 5351 3944 l 5348 3932 l 5345 3917 l
+ 5342 3900 l 5340 3881 l 5338 3861 l 5338 3839 l 5338 3816 l
+ 5341 3791 l 5347 3764 l 5355 3735 l 5366 3707 l 5378 3682 l
+ 5391 3660 l 5404 3641 l 5417 3624 l 5430 3609 l 5444 3596 l
+ 5456 3584 l 5468 3574 l
+ 5490 3555 l gs col0 s gr gr
+
+% arrowhead
+0 slj
+n 5406 3667 m 5478 3566 l 5367 3621 l 5406 3667 l  cp gs 0.00 setgray ef gr  col0 s
+/Helvetica ff 180.00 scf sf
+1080 2745 m
+gs 1 -1 sc (Realtime Module) col0 sh gr
+/Helvetica ff 180.00 scf sf
+4230 2565 m
+gs 1 -1 sc (Master Module) col0 sh gr
+/Helvetica ff 180.00 scf sf
+5940 3285 m
+gs 1 -1 sc (Master0) dup sw pop 2 div neg 0 rm  col0 sh gr
+% Arc
+n 4140.0 3285.0 360.0 -90.0 90.0 arc
+gs col7 1.00 shd ef gr gs col0 s gr
+
+/Helvetica ff 150.00 scf sf
+4230 3285 m
+gs 1 -1 sc  270.0 rot (ecrt) dup sw pop 2 div neg 0 rm  col0 sh gr
+% here ends figure;
+$F2psEnd
+rs
+showpage