guile/tomd/job.scm

   1 ;; Copyright (C) 2018 Thomas Balzer
   2
   3 ;; This file is part of tomd.
   4
   5 ;; tomd is free software: you can redistribute it and/or modify
   6 ;; it under the terms of the GNU General Public License as published by
   7 ;; the Free Software Foundation, either version 3 of the License, or
   8 ;; (at your option) any later version.
   9
  10 ;; tomd is distributed in the hope that it will be useful,
  11 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 ;; GNU General Public License for more details.
  14
  15 ;; You should have received a copy of the GNU General Public License
  16 ;; along with tomd.  If not, see <http://www.gnu.org/licenses/>.
  17
  18 (define-module (tomd job)
  19   #:use-module (srfi srfi-9)
  20   #:export (create-job make-job
  21             job-command-line c-job-cmd
  22             job-args c-job-args
  23             job-start-trigger c-job-start-trigger
  24             job-end-trigger c-job-end-trigger
  25             c-check-job))
  26
  27 ;;; records
  28 (define-record-type <job>
  29   (make-job command-line args start-trigger end-trigger)
  30   job?
  31   (command-line job-command-line)
  32   (args job-args)
  33   (start-trigger job-start-trigger)
  34   (end-trigger job-end-trigger))
  35
  36 ;;; this sillyness is because i'm not sure how to expand macros in scm_call
  37 (define (c-check-job obj)
  38   (job? obj))
  39
  40 (define (c-job-cmd obj)
  41   (job-command-line obj))
  42
  43 (define (c-job-args obj)
  44   (job-args obj))
  45
  46 (define (c-job-start-trigger obj)
  47   (job-start-trigger obj))
  48
  49 (define (c-job-end-trigger obj)
  50   (job-end-trigger obj))
  51
  52 ;;; functions
  53 (define (get-keyword-value args keyword default)
  54   (let ((keyword-value (memq keyword args)))
  55     (if (and keyword-value (>= (length keyword-value) 2))
  56         (cadr keyword-value)
  57         default)))
  58
  59 (define (create-job . rest)
  60   (let ((command-line  (get-keyword-value rest #:command-line  #f))
  61         (args          (get-keyword-value rest #:args          (list)))
  62         (start-trigger (get-keyword-value rest #:start-trigger 'login))
  63         (end-trigger   (get-keyword-value rest #:end-trigger   #f)))
  64     ;; do thing with keyword-ed variables
  65     ;; (display "settings:") (newline)
  66     ;; (format (current-output-port)
  67     ;;         "command-line:~a" command-line)
  68     ;; (newline)
  69     ;; (format (current-output-port)
  70     ;;         "args:~a" args)
  71     ;; (newline)
  72     ;; (format (current-output-port)
  73     ;;         "start-trigger:~a" start-trigger)
  74     ;; (newline)
  75     ;; (format (current-output-port)
  76     ;;         "end-trigger:~a" end-trigger)
  77     ;; (newline)
  78
  79     ;; create a new object that represents the args given.
  80     (make-job command-line
  81               args
  82               start-trigger
  83               end-trigger)
  84     ))