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Code Issues Releases Wiki Activity

Optimize chunk save buffers for multiple insert/erase operations.

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This commit is contained in:
Andrey Kotlarski 2013-04-14 00:54:16 +03:00
parent 9fad430601
commit 4cbefdeeca
1 changed files with 10 additions and 1 deletions
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11
vlfi.el
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@ -474,11 +474,18 @@ Save anyway? ")))
(vlfi-mode)
t))
(defun vlfi-prepare-write-buffer ()
"Optimize buffer for a lot of insert/erasure."
(setq delay-mode-hooks t)
(fundamental-mode)
(buffer-disable-undo))
(defun vlfi-file-shift-back (size-change)
"Shift file contents SIZE-CHANGE bytes back."
(let ((coding-system buffer-file-coding-system))
(write-region nil nil buffer-file-name vlfi-start-pos t)
(setq buffer-file-coding-system nil)
(vlfi-prepare-write-buffer)
(let ((read-start-pos vlfi-end-pos)
(reporter (make-progress-reporter "Adjusting file content"
vlfi-end-pos
@ -516,8 +523,10 @@ Done by saving content up front and then writing previous batch."
(coding-system buffer-file-coding-system))
(let ((file buffer-file-name))
(set-buffer temp-buffer)
(setq buffer-file-name file))
(setq buffer-file-name file)
(vlfi-prepare-write-buffer))
(set-buffer vlfi-buffer)
(vlfi-prepare-write-buffer)
(let ((read-buffer temp-buffer)
(write-buffer vlfi-buffer)
(size (+ vlfi-batch-size size-change))