This writes the 16-byte instance identifier to file descriptor specified by --identifier-fd if set, and closes the file.
This enables safely obtaining the new instance's identifier.
Signed-off-by: Ophestra <cat@gensokyo.uk>
The SharePath is a more stable path than RunDirPath, since it is available all the time and should remain consistent. This also fits better into the intended use case of XDG_RUNTIME_DIR.
Closes#17.
Signed-off-by: Ophestra <cat@gensokyo.uk>
This change also spawns shim before committing system state, leaving it blocking on the setup pipe. The internal/outcome/process structure is also entirely reworked to be much more readable and less error-prone, while enabling basic performance measurements. A long-standing bug where segment lock is not held during Commit is also resolved.
Closes#19.
Signed-off-by: Ophestra <cat@gensokyo.uk>
This reduces collision with local variable names, and generally makes sense for the new store package, since it no longer specifies the state struct.
Signed-off-by: Ophestra <cat@gensokyo.uk>
