86 lines
3.3 KiB
EmacsLisp
86 lines
3.3 KiB
EmacsLisp
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;;; kubernetes-process.el --- Process management. -*- lexical-binding: t; -*-
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;;; Commentary:
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;;; Code:
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(require 'subr-x)
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(defun kubernetes-process-kill-quietly (proc &optional _signal)
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(when proc
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(set-process-sentinel proc nil)
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(set-process-query-on-exit-flag proc nil)
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(let ((kill-buffer-query-functions nil)
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(buf (process-buffer proc)))
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(ignore-errors (kill-process proc))
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(ignore-errors (delete-process proc))
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(ignore-errors (kill-buffer buf)))))
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;;; Background polling processes.
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(defmacro kubernetes-process--define-polling-process (resource)
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"Create resource polling-related definitions.
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RESOURCE is the name of the resource as a symbol.
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Defines the following functions:
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- `kubernetes-process-set-poll-RESOURCE-process'
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- `kubernetes-process-release-poll-RESOURCE-process'
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- `kubernetes-process-poll-RESOURCE-process'."
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(unless (symbolp resource) (error "RESOURCE must be a symbol"))
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(let ((proc-var-name (intern (format "kubernetes--internal-poll-%s-process" resource)))
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(proc-live-p (intern (format "kubernetes-process-poll-%s-process-live-p" resource)))
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(releaser-name (intern (format "kubernetes-process-release-poll-%s-process" resource)))
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(setter-name (intern (format "kubernetes-process-set-poll-%s-process" resource))))
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`(progn
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(defvar ,proc-var-name nil
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"Variable used to coordinate polling access to resources.
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Do not use this variable directly. Instead, use its corresponding accessors.")
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(defun ,proc-live-p ()
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"Get the polling process for this resource if it is running."
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(when-let (proc ,proc-var-name)
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(when (process-live-p proc)
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proc)))
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(defun ,setter-name (proc)
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"Set the polling process to PROC."
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(,releaser-name)
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(setq ,proc-var-name proc))
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(defun ,releaser-name ()
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"Kill the existing polling process, if any."
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(kubernetes-process-kill-quietly ,proc-var-name)
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(setq ,proc-var-name nil)))))
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(kubernetes-process--define-polling-process config)
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(kubernetes-process--define-polling-process configmaps)
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(kubernetes-process--define-polling-process deployments)
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(kubernetes-process--define-polling-process statefulsets)
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(kubernetes-process--define-polling-process ingress)
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(kubernetes-process--define-polling-process jobs)
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(kubernetes-process--define-polling-process namespaces)
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(kubernetes-process--define-polling-process pods)
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(kubernetes-process--define-polling-process secrets)
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(kubernetes-process--define-polling-process services)
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(kubernetes-process--define-polling-process nodes)
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(defun kubernetes-process-kill-polling-processes ()
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(kubernetes-process-release-poll-config-process)
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(kubernetes-process-release-poll-configmaps-process)
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(kubernetes-process-release-poll-deployments-process)
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(kubernetes-process-release-poll-statefulsets-process)
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(kubernetes-process-release-poll-ingress-process)
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(kubernetes-process-release-poll-nodes-process)
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(kubernetes-process-release-poll-jobs-process)
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(kubernetes-process-release-poll-namespaces-process)
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(kubernetes-process-release-poll-pods-process)
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(kubernetes-process-release-poll-secrets-process)
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(kubernetes-process-release-poll-services-process))
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(provide 'kubernetes-process)
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;;; kubernetes-process.el ends here
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