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Better handling of when to remove requests from a client's request table

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For each message received in response to a request, record the
`last-message-time` of any received messages for a request. When a request's
`idle-received-p` field is non-nil and the `last-message-time` is larger than
some number of seconds, remove the request from the request table.
This commit is contained in:
Nathaniel Nicandro 2018-01-11 12:06:26 -06:00
parent 62691611e4
commit 8f774120c9
2 changed files with 16 additions and 4 deletions
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1
jupyter-base.el
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@ -132,6 +132,7 @@ from the kernel.")
(-id)
(time (current-time))
(idle-received-p nil)
(last-message-time nil)
(run-handlers-p t)
(callbacks))

19
jupyter-client.el
View file

@ -612,6 +612,18 @@ that if no TIMEOUT is given, it defaults to
(declare (indent 1))
(jupyter-wait-until req msg-type #'identity timeout))
(defun jupyter--drop-idle-requests (client)
(cl-loop
with requests = (oref client requests)
with ctime = (current-time)
for req in (hash-table-values requests)
for ltime = (jupyter-request-last-message-time req)
for id = (jupyter-request-id req)
when (and (jupyter-request-idle-received-p req)
(> (float-time (time-subtract ctime ltime)) 60))
;; Don't remove the `jupyter-missing-request'
unless (equal id "") do (remhash id requests)))
(cl-defmethod jupyter-handle-message ((client jupyter-kernel-client) channel)
"Process a message on CLIENT's CHANNEL.
When a message is received from the kernel, the
@ -645,6 +657,7 @@ are taken:
;; TODO: Would we always want this?
(when (eq (oref channel type) :iopub)
(jupyter-handle-message channel client nil msg))
(setf (jupyter-request-last-message-time req) (current-time))
(unwind-protect
(jupyter--run-callbacks req msg)
(unwind-protect
@ -653,10 +666,8 @@ are taken:
;; Checking for pmsg-id prevents the removal of
;; `jupyter-missing-request' for the client
(when (and pmsg-id (jupyter-message-status-idle-p msg))
(setf (jupyter-request-idle-received-p req) t)
;; TODO: Messages associated with the request might still be
;; received when the request is removed from the requests table.
(remhash pmsg-id requests))))))))
(setf (jupyter-request-idle-received-p req) t))
(jupyter--drop-idle-requests client)))))))
;;; STDIN message requests/handlers