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Extend memory-info for remote systems

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* doc/lispref/files.texi (Magic File Names): Add memory-info.

* doc/lispref/internals.texi (Garbage Collection): memory-info can
also retrieve values from remote systems.

* etc/NEWS: Document changes in memory-info.  Fix typos.

* lisp/files.el (warn-maybe-out-of-memory): Ensure local memory info.

* lisp/net/tramp.el (tramp-handle-memory-info): New defun.
(tramp-file-name-for-operation)
* lisp/net/tramp-adb.el (tramp-adb-file-name-handler-alist):
* lisp/net/tramp-archive.el (tramp-archive-file-name-handler-alist):
* lisp/net/tramp-crypt.el (tramp-crypt-file-name-handler-alist):
* lisp/net/tramp-gvfs.el (tramp-gvfs-file-name-handler-alist):
* lisp/net/tramp-rclone.el (tramp-rclone-file-name-handler-alist):
* lisp/net/tramp-sh.el (tramp-sh-file-name-handler-alist):
* lisp/net/tramp-smb.el (tramp-smb-file-name-handler-alist):
* lisp/net/tramp-sshfs.el (tramp-sshfs-file-name-handler-alist)
* lisp/net/tramp-sudoedit.el (tramp-sudoedit-file-name-handler-alist):
Add 'memory-info'.

* lisp/net/tramp-sshfs.el (tramp-sshfs-handle-exec-path):
Let-bind `process-file-side-effects'.

* src/alloc.c (Fmemory_info): Support remote systems.
(Qmemory_info): Declare.

* test/lisp/net/tramp-tests.el (tramp-test31-memory-info): New test.
This commit is contained in:
Michael Albinus 2022-11-27 16:57:03 +01:00
parent ca42ff5f0e
commit 1cbf2655db
16 changed files with 153 additions and 49 deletions
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3
lisp/files.el
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@ -2308,7 +2308,8 @@ it returns nil or exits non-locally."
"Warn if an attempt to open file of SIZE bytes may run out of memory."
(when (and (numberp size) (not (zerop size))
(integerp out-of-memory-warning-percentage))
(let ((meminfo (memory-info)))
(let* ((default-directory temporary-file-directory)
(meminfo (memory-info)))
(when (consp meminfo)
(let ((total-free-memory (float (+ (nth 1 meminfo) (nth 3 meminfo)))))
(when (> (/ size 1024)