handle_jobs.eps

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%%For: (pcarns) Carns Philip H
%%Title: G
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2 lt {
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%	pending queue
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newpath 407 234 moveto
311 234 lineto
311 198 lineto
407 198 lineto
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gsave 10 dict begin
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%	service queue
gsave 10 dict begin
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27 44 lineto
27 8 lineto
117 8 lineto
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gsave 10 dict begin
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%	check consistency
gsave 10 dict begin
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251 304 lineto
337 286 lineto
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gsave 10 dict begin
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%	check consistency -> pending queue
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newpath 349 243 moveto
354 234 lineto
354 244 lineto
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gsave 0 setgray stroke grestore fill
gsave 10 dict begin
413 261 moveto (operation must wait) 111 14.00 -0.50 alignedtext
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%	call service handler
gsave 10 dict begin
newpath 195 234 moveto
104 216 lineto
195 198 lineto
286 216 lineto
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gsave 10 dict begin
195 217 moveto (call service handler) 108 14.00 -0.50 alignedtext
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%	check consistency -> call service handler
newpath 304 293 moveto
285 286 262 276 249 268 curveto
238 261 226 250 216 239 curveto
stroke
newpath 214 241 moveto
209 232 lineto
218 237 lineto
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gsave 0 setgray stroke grestore fill
gsave 10 dict begin
294 261 moveto (clear to begin) 76 14.00 -0.50 alignedtext
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%	create state structure
gsave 10 dict begin
newpath 330 430 moveto
235 412 lineto
330 394 lineto
425 412 lineto
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gsave 10 dict begin
330 413 moveto (create state structure) 114 14.00 -0.50 alignedtext
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%	create state structure -> check consistency
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newpath 332 332 moveto
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gsave 0 setgray stroke grestore fill

%	add to queue\n(if necessary)
gsave 10 dict begin
newpath 72 146 moveto
0 114 lineto
72 82 lineto
144 114 lineto
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72 123 moveto (add to queue) 71 14.00 -0.50 alignedtext
72 107 moveto (\(if necessary\)) 75 14.00 -0.50 alignedtext
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%	call service handler -> add to queue\n(if necessary)
newpath 163 204 moveto
147 197 129 189 118 180 curveto
110 173 101 160 93 149 curveto
stroke
newpath 90 150 moveto
87 140 lineto
95 147 lineto
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gsave 0 setgray stroke grestore fill
gsave 10 dict begin
165 173 moveto (not completed) 79 14.00 -0.50 alignedtext
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%	remove from queue;\nrelease resources
gsave 10 dict begin
newpath 261 146 moveto
162 114 lineto
261 82 lineto
360 114 lineto
closepath
stroke
gsave 10 dict begin
261 123 moveto (remove from queue;) 113 14.00 -0.50 alignedtext
261 107 moveto (release resources) 94 14.00 -0.50 alignedtext
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%	call service handler -> remove from queue;\nrelease resources
newpath 206 200 moveto
215 186 228 167 239 149 curveto
stroke
newpath 237 148 moveto
244 141 lineto
241 151 lineto
closepath
gsave 0 setgray stroke grestore fill
gsave 10 dict begin
264 173 moveto (completed) 58 14.00 -0.50 alignedtext
end grestore

%	find existing state structure
gsave 10 dict begin
newpath 187 376 moveto
65 358 lineto
187 340 lineto
309 358 lineto
closepath
stroke
gsave 10 dict begin
187 359 moveto (find existing state structure) 151 14.00 -0.50 alignedtext
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%	find existing state structure -> call service handler
newpath 188 340 moveto
189 316 191 271 193 243 curveto
stroke
newpath 190 244 moveto
194 234 lineto
195 244 lineto
closepath
gsave 0 setgray stroke grestore fill

%	wait for jobs to complete
gsave 10 dict begin
newpath 260 612 moveto
147 594 lineto
260 576 lineto
373 594 lineto
closepath
stroke
gsave 10 dict begin
260 595 moveto (wait for jobs to complete) 139 14.00 -0.50 alignedtext
end grestore
end grestore

%	Known job
gsave 10 dict begin
224 466 41 18 ellipse_path
stroke
gsave 10 dict begin
224 467 moveto (Known job) 62 14.00 -0.50 alignedtext
end grestore
end grestore

%	wait for jobs to complete -> Known job
newpath 255 577 moveto
249 555 238 518 231 492 curveto
stroke
newpath 229 494 moveto
229 484 lineto
234 493 lineto
closepath
gsave 0 setgray stroke grestore fill

%	Unexpected job
gsave 10 dict begin
315 520 54 18 ellipse_path
stroke
gsave 10 dict begin
315 521 moveto (Unexpected job) 88 14.00 -0.50 alignedtext
end grestore
end grestore

%	wait for jobs to complete -> Unexpected job
newpath 272 578 moveto
279 568 288 556 296 546 curveto
stroke
newpath 294 545 moveto
302 538 lineto
298 548 lineto
closepath
gsave 0 setgray stroke grestore fill

%	add to queue\n(if necessary) -> service queue
newpath 72 82 moveto
72 72 72 62 72 53 curveto
stroke
newpath 70 54 moveto
72 44 lineto
75 54 lineto
closepath
gsave 0 setgray stroke grestore fill

%	Known job -> find existing state structure
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212 431 203 403 196 383 curveto
stroke
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193 375 lineto
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closepath
gsave 0 setgray stroke grestore fill

%	Unexpected job -> create state structure
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stroke
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