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(start-t (current-milliseconds))
(readonly-mode (dbr:dbstruct-read-only dbstruct))
(readonly-command (member cmd api:read-only-queries))
(writecmd-in-readonly-mode (and readonly-mode (not readonly-command))))
(if (not readonly-command)
(mutex-lock! write-mutex))
(let* ((tmppath (dbr:dbstruct-tmppath dbstruct))
(clean-run-id (cond
((number? run-id) run-id)
((equal? run-id #f) "main")
(else "other")))
(crumbfile (dbfile:wait-for-qif tmppath run-id (cons cmd params)))
(crumbfile (dbfile:wait-for-qif tmppath clean-run-id (cons cmd params)))
(res
(if writecmd-in-readonly-mode
(conc "attempt to run write command "cmd" on a read-only database")
(api:dispatch-request dbstruct cmd run-id params))))
(delete-file* crumbfile)
(if (not readonly-command)
(mutex-unlock! write-mutex))
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