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authorLudovic Courtès <ludo@gnu.org>2024-01-05 00:20:50 +0100
committerLudovic Courtès <ludo@gnu.org>2024-01-05 17:27:20 +0100
commit4e431fda5f2ec76b6d6a271be7c30b1324431329 (patch)
tree92c8bb572cb60c96739a02b2263d4cfb39468a22 /gnu/services/shepherd.scm
parent5cec983e043259d2b13c194bff0a70459eed11d3 (diff)
services: shepherd: Remove ‘dynamic-wind’ in ‘call-with-*-file’.
Fixes <https://issues.guix.gnu.org/64653>. The ‘dynamic-wind’ was causing files to be closed prematurely when leaving the dynamic extent of PROC for instance via a delimited continuation, using Fibers (that ‘dynamic-wind’ call was also semantically incorrect in the first place). * gnu/services/shepherd.scm (shepherd-configuration-file) [config](call-with-file): Remove. (call-with-input-file, call-with-output-file): Rewrite in terms of ‘call-with-port’. Change-Id: Ica8af71a04f525a15be99985552063cb98cd6ee8
Diffstat (limited to 'gnu/services/shepherd.scm')
-rw-r--r--gnu/services/shepherd.scm21
1 files changed, 5 insertions, 16 deletions
diff --git a/gnu/services/shepherd.scm b/gnu/services/shepherd.scm
index e9d3a631c2..8e122f1aab 100644
--- a/gnu/services/shepherd.scm
+++ b/gnu/services/shepherd.scm
@@ -1,5 +1,5 @@
;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2013-2016, 2018-2023 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2013-2016, 2018-2024 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2017 Clément Lassieur <clement@lassieur.org>
;;; Copyright © 2018 Carlo Zancanaro <carlo@zancanaro.id.au>
;;; Copyright © 2020 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
@@ -371,17 +371,6 @@ as shepherd package."
(use-modules (srfi srfi-34)
(system repl error-handling))
- (define (call-with-file file flags proc)
- (let ((port #f))
- (dynamic-wind
- (lambda ()
- (set! port (open file flags)))
- (lambda ()
- (proc port))
- (lambda ()
- (close-port port)
- (set! port #f)))))
-
;; There's code run from shepherd that uses 'call-with-input-file' &
;; co.--e.g., the 'urandom-seed' service. Starting from Shepherd
;; 0.9.2, users need to make sure not to leak non-close-on-exec file
@@ -389,12 +378,12 @@ as shepherd package."
;; standard bindings with O_CLOEXEC variants.
(set! call-with-input-file
(lambda (file proc)
- (call-with-file file (logior O_RDONLY O_CLOEXEC)
- proc)))
+ (call-with-port (open file (logior O_RDONLY O_CLOEXEC))
+ proc)))
(set! call-with-output-file
(lambda (file proc)
- (call-with-file file (logior O_WRONLY O_CREAT O_CLOEXEC)
- proc)))
+ (call-with-port (open file (logior O_WRONLY O_CREAT O_CLOEXEC))
+ proc)))
;; Specify the default environment visible to all the services.
;; Without this statement, all the environment variables of PID 1