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Refactor jupyter-start-new-kernel to use jupyter-missing-request

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Nathaniel Nicandro 2018-01-08 14:01:51 -06:00
parent 7e36ea1101
commit 6178a53638
1 changed files with 18 additions and 10 deletions
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28
jupyter-kernel-manager.el
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@ -243,7 +243,6 @@ If RESTART is non-nil, request a restart instead of a complete shutdown."
(jupyter-send manager "interrupt_request" msg))
(interrupt-process (oref manager kernel) t)))
;; TODO: kernel existence
(defun jupyter-start-new-kernel (kernel-name &optional client-class)
(setq client-class (or client-class 'jupyter-kernel-client))
(unless (child-of-class-p client-class 'jupyter-kernel-client)
@ -251,17 +250,26 @@ If RESTART is non-nil, request a restart instead of a complete shutdown."
(list '(subclass jupyter-kernel-client) client-class)))
(let (km kc)
(setq km (jupyter-kernel-manager :name kernel-name))
(jupyter-start-kernel km)
(setq kc (jupyter-make-client km client-class))
(jupyter-start-channels kc)
;; Let the channels start
(sleep-for 1)
(let ((info (jupyter-wait-until-received :kernel-info-reply
(jupyter-request-inhibit-handlers
(jupyter-kernel-info-request kc))
10)))
(if info (oset km kernel-info (jupyter-message-content info))
(error "Kernel did not respond to kernel-info request.")))
(jupyter-hb-unpause (oref kc hb-channel))
(jupyter-start-kernel km)
(condition-case nil
(progn
;; Wait for the startup message
(jupyter-wait-until-received :status (jupyter-missing-request kc) 10)
;; Remove the callback since the `jupyter-missing-request' does not go
;; through the normal request code path in `jupyter-kernel-client'
(setf (jupyter-request-callbacks (jupyter-missing-request kc)) nil)
(let ((info (jupyter-wait-until-received :kernel-info-reply
(jupyter-request-inhibit-handlers
(jupyter-kernel-info-request kc))
30)))
(if info (oset km kernel-info (jupyter-message-content info))
(error "Kernel did not respond to kernel-info request"))))
((error quit)
(jupyter-stop-channels kc)
(jupyter-stop-kernel km 0)))
(cons km kc)))
(provide 'jupyter-kernel-manager)