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Commit | Line | Data |
---|---|---|
1 | digraph g | |
2 | { | |
3 | graph | |
4 | [ | |
5 | nodesep="0.2" | |
6 | ]; | |
7 | ||
8 | edge | |
9 | [ | |
10 | fontname="Helvetica", | |
11 | fontsize=10, | |
12 | labelfontname="Helvetica", | |
13 | labelfontsize=10 | |
14 | ]; | |
15 | ||
16 | node | |
17 | [ | |
18 | fontname="Helvetica", | |
19 | fontsize=10, | |
20 | shape=box | |
21 | ]; | |
22 | ||
23 | edge | |
24 | [ | |
25 | arrowhead="open" | |
26 | ] | |
27 | ||
28 | // Program elements. | |
29 | { | |
30 | operating_system [ label="Operating System", shape=ellipse ]; | |
31 | io_service [ label="io_service" ]; | |
32 | io_object [ label="I/O Object\ne.g. socket" ]; | |
33 | your_program [ label="Your Program" ]; | |
34 | your_completion_handler [ label="Your Completion Handler" ]; | |
35 | } | |
36 | ||
37 | // Owning relationships. | |
38 | { | |
39 | edge [ arrowtail="diamond" ]; | |
40 | your_program:e -> your_completion_handler:n; | |
41 | your_program:w -> io_object:nw; | |
42 | your_program:se -> io_service:ne; | |
43 | } | |
44 | ||
45 | // Non-owning relationships; | |
46 | { | |
47 | io_object:sw -> io_service:w; | |
48 | } | |
49 | ||
50 | // Visible actions. | |
51 | { | |
52 | edge [ style="dashed", color="#808080" ]; | |
53 | ||
54 | // Forward actions. | |
55 | { | |
56 | your_program:sw -> io_object:n [ label="1" ]; | |
57 | io_object:s -> io_service:nw [ label="2" ]; | |
58 | io_service:s -> operating_system:n [ label="3" ]; | |
59 | } | |
60 | } | |
61 | ||
62 | // Invisible actions. | |
63 | { | |
64 | edge [ style="invis" ]; | |
65 | ||
66 | // Forward actions. | |
67 | { | |
68 | your_program:s -> io_service:n [ label="5" ]; | |
69 | } | |
70 | ||
71 | // Reverse actions. | |
72 | { | |
73 | edge [ arrowhead="none", arrowtail="open" ]; | |
74 | //io_service:s -> operating_system:n [ label="4" ]; | |
75 | your_completion_handler:s -> io_service:e [ label="6" ]; | |
76 | } | |
77 | } | |
78 | } |