15 lines
428 B
Markdown
15 lines
428 B
Markdown
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```mermaid
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sequenceDiagram
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client->>server: dial
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server->>client: reply open
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client->>server: dial upgrade
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client->>server: upgrade ping probe
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server->>client: upgrade pong probe
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client->>client: pause old conn
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client->>client: switch old conn to upgraded conn
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client->>server: upgrade
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server->>server: pause old conn(return noop if waiting)
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server->>server: switch old conn to upgraded conn
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server->>server: close old conn
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```
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