Created
May 30, 2019 17:57
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Description of generic mount flow
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| @startuml | |
| autonumber | |
| hide footbox | |
| participant "wrapper\n(stage 2)" as wrapper | |
| participant "stage 1" as stage_1 | |
| participant master | |
| participant "rpc server" as rpc_server | |
| wrapper -> stage_1 ** : spawn | |
| activate stage_1 | |
| note over stage_1: prepare config | |
| stage_1 -> wrapper: send config | |
| deactivate stage_1 | |
| note over wrapper: create socket pair A | |
| note over wrapper: create socket pair B | |
| wrapper -> master ** : spawn | |
| note over wrapper: close A[0] | |
| activate master | |
| note over master: close A[1] | |
| note over master: close B[0] | |
| wrapper -> rpc_server ** : spawn | |
| note over rpc_server: close B[1] | |
| note over wrapper: close B[0] | |
| note over wrapper: close B[1] | |
| activate rpc_server | |
| master -> rpc_server: request open over B[1] | |
| rpc_server -> master: send fd over B[0] | |
| note over master: mount passing\nfd as option | |
| master -> wrapper: send fd over A[0] | |
| note over wrapper: enter stage 2 | |
| note over wrapper: start pre-process\nuse fd | |
| note over wrapper: start process | |
| @enduml |
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