mirror of
https://github.com/ioacademy-jikim/debugging
synced 2025-06-08 08:26:14 +00:00
48 lines
1.8 KiB
Plaintext
48 lines
1.8 KiB
Plaintext
digraph thread_states {
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// States
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alive;
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running;
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wait_mutex;
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wait_condvar;
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wait_join;
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zombie;
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dead;
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// Legitimate transitions
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alive -> running;
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dead -> alive [ label="reused" ];
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running -> wait_join [ label="wait for another\nthread termination" ];
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wait_join -> running [ label="target thread\nterminates" ];
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running -> zombie [ label="non-detached thread\nterminates" ];
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zombie -> dead [ label="join completed" ];
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running -> dead [ label="detached thread\nterminates" ];
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running -> wait_mutex [ label="wait for mutex\nacquisition" ];
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wait_mutex -> running [ label="mutex\nacquired" ];
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wait_mutex -> running [ label="mutex\ngiven up" ];
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running -> wait_condvar [ label="wait for condition variable" ];
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wait_condvar -> running [ label="woken" ];
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// How to handle bad actions
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wait_mutex -> zombie [ style=dotted, label="thread dies\nwaiting" ];
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wait_mutex -> dead [ style=dotted, label="thread dies\nwaiting" ];
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wait_mutex -> wait_condvar [ style=dotted, label="waiting for\nmultiple objects" ];
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wait_mutex -> wait_join [ style=dotted, label="waiting for\nmultiple objects" ];
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wait_condvar -> zombie [ style=dotted, label="thread dies\nwaiting" ];
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wait_condvar -> dead [ style=dotted, label="thread dies\nwaiting" ];
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wait_condvar -> wait_mutex [ style=dotted, label="waiting for\nmultiple objects" ];
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wait_condvar -> wait_join [ style=dotted, label="waiting for\nmultiple objects" ];
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wait_join -> zombie [ style=dotted, label="thread dies\nwaiting" ];
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wait_join -> dead [ style=dotted, label="thread dies\nwaiting" ];
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wait_join -> wait_condvar [ style=dotted, label="waiting for\nmultiple objects" ];
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wait_join -> wait_mutex [ style=dotted, label="waiting for\nmultiple objects" ];
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zombie -> running [ style=dotted, label="unholy\nresurrection" ];
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dead -> running [ style=dotted, label="unholy\nresurrection" ];
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}
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