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- (in-package :stumpwm)
- (defun get-proc-fd-field (s field)
- (if s
- (do ((line (read-line s nil nil) (read-line s nil nil)))
- ((null line) nil)
- (let ((split (cl-ppcre:split "\\s*:\\s*" line)))
- (when (string= (car split) field) (return (cadr split)))))
- ""))
- (defun mem-usage ()
- "Returns amount of available memory."
- (with-open-file (file #P"/proc/meminfo" :if-does-not-exist nil)
- (read-from-string (get-proc-fd-field file "MemAvailable"))))
- (defun fmt-mem-available (mem &optional color)
- "Returns a string representing the current available memory."
- (let* ((available (truncate (/ mem 1000))))
- (if color
- (cond ((< available (* 1024 8)) (format nil "^[^B^3*MEM: ~4D MB^]" available))
- ((< available (* 1024 4)) (format nil "^[^B^1*MEM: ~4D MB^]" available))
- (t (format nil "MEM: ~4D MB" available)))
- (format nil "MEM: ~4D MB" available))))
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