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67 líneas
2.4 KiB
67 líneas
2.4 KiB
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(defpackage swank-snapshot
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(:use cl)
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(:export restore-snapshot save-snapshot background-save-snapshot)
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(:import-from swank defslimefun))
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(in-package swank-snapshot)
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(defslimefun save-snapshot (image-file)
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(swank/backend:save-image image-file
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(let ((c swank::*emacs-connection*))
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(lambda () (resurrect c))))
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(format nil "Dumped lisp to ~A" image-file))
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(defslimefun restore-snapshot (image-file)
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(let* ((conn swank::*emacs-connection*)
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(stream (swank::connection.socket-io conn))
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(clone (swank/backend:dup (swank/backend:socket-fd stream)))
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(style (swank::connection.communication-style conn))
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(repl (if (swank::connection.user-io conn) t))
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(args (list "--swank-fd" (format nil "~d" clone)
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"--swank-style" (format nil "~s" style)
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"--swank-repl" (format nil "~s" repl))))
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(swank::close-connection conn nil nil)
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(swank/backend:exec-image image-file args)))
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(defslimefun background-save-snapshot (image-file)
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(let ((connection swank::*emacs-connection*))
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(flet ((complete (success)
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(let ((swank::*emacs-connection* connection))
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(swank::background-message
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"Dumping lisp image ~A ~:[failed!~;succeeded.~]"
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image-file success)))
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(awaken ()
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(resurrect connection)))
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(swank/backend:background-save-image image-file
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:restart-function #'awaken
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:completion-function #'complete)
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(format nil "Started dumping lisp to ~A..." image-file))))
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(in-package :swank)
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(defun swank-snapshot::resurrect (old-connection)
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(setq *log-output* nil)
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(init-log-output)
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(clear-event-history)
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(setq *connections* (delete old-connection *connections*))
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(format *error-output* "args: ~s~%" (command-line-args))
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(let* ((fd (read-command-line-arg "--swank-fd"))
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(style (read-command-line-arg "--swank-style"))
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(repl (read-command-line-arg "--swank-repl"))
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(* (format *error-output* "fd=~s style=~s~%" fd style))
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(stream (make-fd-stream fd nil))
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(connection (make-connection nil stream style)))
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(let ((*emacs-connection* connection))
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(when repl (swank-repl:create-repl nil))
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(background-message "~A" "Lisp image restored"))
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(serve-requests connection)
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(simple-repl)))
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(defun read-command-line-arg (name)
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(let* ((args (command-line-args))
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(pos (position name args :test #'equal)))
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(read-from-string (elt args (1+ pos)))))
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(in-package :swank-snapshot)
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(provide :swank-snapshot)
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