;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2018 Ludovic Courtès <ludo@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.

(define-module (test-processes)
  #:use-module (guix scripts processes)
  #:use-module (guix store)
  #:use-module (guix derivations)
  #:use-module (guix packages)
  #:use-module (guix gexp)
  #:use-module ((guix utils) #:select (call-with-temporary-directory))
  #:use-module (gnu packages bootstrap)
  #:use-module (guix tests)
  #:use-module (srfi srfi-1)
  #:use-module (srfi srfi-64)
  #:use-module (rnrs bytevectors)
  #:use-module (rnrs io ports)
  #:use-module (ice-9 match)
  #:use-module (ice-9 threads))

(test-begin "processes")

(test-assert "not a client"
  (not (find (lambda (session)
               (= (getpid)
                  (process-id (daemon-session-client session))))
             (daemon-sessions))))

(test-assert "client"
  (with-store store
    (let* ((session (find (lambda (session)
                            (= (getpid)
                               (process-id (daemon-session-client session))))
                          (daemon-sessions)))
           (daemon  (daemon-session-process session)))
      (and (kill (process-id daemon) 0)
           (string-suffix? "guix-daemon" (first (process-command daemon)))))))

(test-assert "client + lock"
  (with-store store
    (call-with-temporary-directory
     (lambda (directory)
       (let* ((token1  (string-append directory "/token1"))
              (token2  (string-append directory "/token2"))
              (exp     #~(begin #$(random-text)
                                (mkdir #$token1)
                                (let loop ()
                                  (unless (file-exists? #$token2)
                                    (sleep 1)
                                    (loop)))
                                (mkdir #$output)))
              (guile   (package-derivation store %bootstrap-guile))
              (drv     (run-with-store store
                         (gexp->derivation "foo" exp
                                           #:guile-for-build guile)))
              (thread  (call-with-new-thread
                        (lambda ()
                          (build-derivations store (list drv)))))
              (_       (let loop ()
                         (unless (file-exists? token1)
                           (usleep 200)
                           (loop))))
              (session (find (lambda (session)
                               (= (getpid)
                                  (process-id (daemon-session-client session))))
                             (daemon-sessions)))
              (locks   (daemon-session-locks-held (pk 'session session))))
         (call-with-output-file token2 (const #t))
         (equal? (list (string-append (derivation->output-path drv) ".lock"))
                 locks))))))

(test-end "processes")
vail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2018-03-04 18:03:45 +0100'>2018-03-04</span></td><td><a href='/guix/commit/gnu/packages/accessibility.scm?id=bd128d5e880ba73ce217e864f1cce6fe1b655ff1'>gnu: footswitch: Remove redundant MKDIR-P.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2017-11-19 12:13:43 +0200'>2017-11-19</span></td><td><a href='/guix/commit/gnu/packages/accessibility.scm?id=c146314566b969d65d52621dec32bde0824f1207'>Update email address for ng0.</a></td><td>ng0</td></tr>
<tr><td><span title='2017-09-28 20:24:17 +0200'>2017-09-28</span></td><td><a href='/guix/commit/gnu/packages/accessibility.scm?id=18a26f1c1300773ec01bc0afb86ca863b22fa285'>gnu: Add footswitch.</a><span class='msg-avail'>...</span></td><td>Stefan Reichör</td></tr>
<tr><td><span title='2017-05-27 13:35:02 -0400'>2017-05-27</span></td><td><a href='/guix/commit/gnu/packages/accessibility.scm?id=574e4e16d82bdc76b7c2ba726518047cdf1edf0b'>gnu: Add florence.</a><span class='msg-avail'>...</span></td><td>ng0</td></tr>