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1 | ;;; GNU Guix --- Functional package management for GNU |
2 | ;;; Copyright © 2018 Ludovic Courtès <ludo@gnu.org> | |
0b5ad0e7 | 3 | ;;; Copyright © 2019 Mathieu Othacehe <m.othacehe@gmail.com> |
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4 | ;;; |
5 | ;;; This file is part of GNU Guix. | |
6 | ;;; | |
7 | ;;; GNU Guix is free software; you can redistribute it and/or modify it | |
8 | ;;; under the terms of the GNU General Public License as published by | |
9 | ;;; the Free Software Foundation; either version 3 of the License, or (at | |
10 | ;;; your option) any later version. | |
11 | ;;; | |
12 | ;;; GNU Guix is distributed in the hope that it will be useful, but | |
13 | ;;; WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | ;;; GNU General Public License for more details. | |
16 | ;;; | |
17 | ;;; You should have received a copy of the GNU General Public License | |
18 | ;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>. | |
19 | ||
20 | (define-module (test-processes) | |
21 | #:use-module (guix scripts processes) | |
22 | #:use-module (guix store) | |
23 | #:use-module (guix derivations) | |
24 | #:use-module (guix packages) | |
25 | #:use-module (guix gexp) | |
26 | #:use-module ((guix utils) #:select (call-with-temporary-directory)) | |
27 | #:use-module (gnu packages bootstrap) | |
28 | #:use-module (guix tests) | |
29 | #:use-module (srfi srfi-1) | |
30 | #:use-module (srfi srfi-64) | |
31 | #:use-module (rnrs bytevectors) | |
32 | #:use-module (rnrs io ports) | |
33 | #:use-module (ice-9 match) | |
34 | #:use-module (ice-9 threads)) | |
35 | ||
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36 | ;; When using --system argument, binfmt-misc mechanism may be used. In that |
37 | ;; case, (guix script processes) won't work because: | |
38 | ;; | |
39 | ;; * ARGV0 is qemu-user and not guix-daemon. | |
40 | ;; * Guix-daemon won't be able to stuff client PID in ARGV1 of forked | |
41 | ;; processes. | |
42 | ;; | |
43 | ;; See: https://lists.gnu.org/archive/html/bug-guix/2019-12/msg00017.html. | |
44 | ;; | |
45 | ;; If we detect that we are running with binfmt emulation, all the following | |
46 | ;; tests must be skipped. | |
47 | ||
48 | (define (binfmt-misc?) | |
49 | (let ((pid (getpid)) | |
50 | (cmdline (call-with-input-file "/proc/self/cmdline" get-string-all))) | |
51 | (match (primitive-fork) | |
52 | (0 (dynamic-wind | |
53 | (const #t) | |
54 | (lambda () | |
55 | (exit | |
56 | (not (equal? | |
57 | (call-with-input-file (format #f "/proc/~a/cmdline" pid) | |
58 | get-string-all) | |
59 | cmdline)))) | |
60 | (const #t))) | |
61 | (x (zero? (cdr (waitpid x))))))) | |
62 | ||
63 | (define-syntax-rule (test-assert* description exp) | |
64 | (begin | |
65 | (when (binfmt-misc?) | |
66 | (test-skip 1)) | |
67 | (test-assert description exp))) | |
68 | ||
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69 | (test-begin "processes") |
70 | ||
0b5ad0e7 | 71 | (test-assert* "not a client" |
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72 | (not (find (lambda (session) |
73 | (= (getpid) | |
74 | (process-id (daemon-session-client session)))) | |
75 | (daemon-sessions)))) | |
76 | ||
0b5ad0e7 | 77 | (test-assert* "client" |
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78 | (with-store store |
79 | (let* ((session (find (lambda (session) | |
80 | (= (getpid) | |
81 | (process-id (daemon-session-client session)))) | |
82 | (daemon-sessions))) | |
83 | (daemon (daemon-session-process session))) | |
84 | (and (kill (process-id daemon) 0) | |
85 | (string-suffix? "guix-daemon" (first (process-command daemon))))))) | |
86 | ||
0b5ad0e7 | 87 | (test-assert* "client + lock" |
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88 | (with-store store |
89 | (call-with-temporary-directory | |
90 | (lambda (directory) | |
91 | (let* ((token1 (string-append directory "/token1")) | |
92 | (token2 (string-append directory "/token2")) | |
93 | (exp #~(begin #$(random-text) | |
94 | (mkdir #$token1) | |
95 | (let loop () | |
96 | (unless (file-exists? #$token2) | |
97 | (sleep 1) | |
98 | (loop))) | |
99 | (mkdir #$output))) | |
100 | (guile (package-derivation store %bootstrap-guile)) | |
101 | (drv (run-with-store store | |
102 | (gexp->derivation "foo" exp | |
103 | #:guile-for-build guile))) | |
104 | (thread (call-with-new-thread | |
105 | (lambda () | |
106 | (build-derivations store (list drv))))) | |
107 | (_ (let loop () | |
108 | (unless (file-exists? token1) | |
109 | (usleep 200) | |
110 | (loop)))) | |
111 | (session (find (lambda (session) | |
112 | (= (getpid) | |
113 | (process-id (daemon-session-client session)))) | |
114 | (daemon-sessions))) | |
115 | (locks (daemon-session-locks-held (pk 'session session)))) | |
116 | (call-with-output-file token2 (const #t)) | |
117 | (equal? (list (string-append (derivation->output-path drv) ".lock")) | |
118 | locks)))))) | |
119 | ||
120 | (test-end "processes") |