services: Add memcached.
* gnu/services/databases.scm (memcached-service-type, %memcached-accounts): New variables. (<memcached-configuration>): New record type. (memcached-service-type): New procedures. * gnu/tests/databases.scm: New file. * doc/guix.texi (Database Services): Document the new memcached service. * gnu/local.mk (GNU_SYSTEM_MODULES): Add entry for tests/databases.scm.master
Christopher Baines
parent
686144e986
commit
119fdd0d0e
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@ -11724,6 +11724,38 @@ TCP port on which the database server listens for incoming connections.
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@end table
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@end deftp
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@defvr {Scheme Variable} memcached-service-type
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This is the service type for the @uref{https://memcached.org/,
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Memcached} service, which provides a distributed in memory cache. The
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value for the service type is a @code{memcached-configuration} object.
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@end defvr
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@example
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(service memcached-service-type)
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@end example
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@deftp {Data Type} memcached-configuration
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Data type representing the configuration of memcached.
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@table @asis
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@item @code{memcached} (default: @code{memcached})
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The Memcached package to use.
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@item @code{interfaces} (default: @code{'("0.0.0.0")})
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Network interfaces on which to listen.
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@item @code{tcp-port} (default: @code{11211})
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Port on which to accept connections on,
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@item @code{udp-port} (default: @code{11211})
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Port on which to accept UDP connections on, a value of 0 will disable
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listening on a UDP socket.
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@item @code{additional-options} (default: @code{'()})
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Additional command line options to pass to @code{memcached}.
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@end table
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@end deftp
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@defvr {Scheme Variable} redis-service-type
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This is the service type for the @uref{https://redis.io/, Redis}
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key/value store, whose value is a @code{redis-configuration} object.
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@ -480,6 +480,7 @@ GNU_SYSTEM_MODULES = \
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%D%/tests.scm \
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%D%/tests/admin.scm \
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%D%/tests/base.scm \
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%D%/tests/databases.scm \
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%D%/tests/dict.scm \
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%D%/tests/nfs.scm \
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%D%/tests/install.scm \
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@ -25,6 +25,7 @@
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#:use-module (gnu system shadow)
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#:use-module (gnu packages admin)
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#:use-module (gnu packages databases)
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#:use-module (guix modules)
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#:use-module (guix records)
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#:use-module (guix gexp)
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#:use-module (ice-9 match)
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@ -33,6 +34,16 @@
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postgresql-service
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postgresql-service-type
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memcached-service-type
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<memcached-configuration>
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memcached-configuration
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memcached-configuration?
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memcached-configuration-memecached
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memcached-configuration-interfaces
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memcached-configuration-tcp-port
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memcached-configuration-udp-port
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memcached-configuration-additional-options
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mysql-service
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mysql-service-type
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mysql-configuration
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@ -176,6 +187,68 @@ and stores the database cluster in @var{data-directory}."
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(config-file config-file)
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(data-directory data-directory))))
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;;;
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;;; Memcached
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;;;
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(define-record-type* <memcached-configuration>
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memcached-configuration make-memcached-configuration
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memcached-configuration?
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(memcached memcached-configuration-memcached ;<package>
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(default memcached))
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(interfaces memcached-configuration-interfaces
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(default '("0.0.0.0")))
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(tcp-port memcached-configuration-tcp-port
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(default 11211))
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(udp-port memcached-configuration-udp-port
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(default 11211))
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(additional-options memcached-configuration-additional-options
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(default '())))
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(define %memcached-accounts
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(list (user-group (name "memcached") (system? #t))
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(user-account
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(name "memcached")
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(group "memcached")
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(system? #t)
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(comment "Memcached server user")
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(home-directory "/var/empty")
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(shell (file-append shadow "/sbin/nologin")))))
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(define memcached-shepherd-service
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(match-lambda
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(($ <memcached-configuration> memcached interfaces tcp-port udp-port
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additional-options)
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(with-imported-modules (source-module-closure
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'((gnu build shepherd)))
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(list (shepherd-service
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(provision '(memcached))
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(documentation "Run the Memcached daemon.")
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(requirement '(user-processes loopback))
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(modules '((gnu build shepherd)))
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(start #~(make-forkexec-constructor
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`(#$(file-append memcached "/bin/memcached")
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"-l" #$(string-join interfaces ",")
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"-p" #$(number->string tcp-port)
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"-U" #$(number->string udp-port)
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"--daemon"
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"-P" "/var/run/memcached.pid"
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"-u" "memcached"
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,#$@additional-options)
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#:log-file "/var/log/memcached"
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#:pid-file "/var/run/memcached.pid"))
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(stop #~(make-kill-destructor))))))))
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(define memcached-service-type
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(service-type (name 'memcached)
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(extensions
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(list (service-extension shepherd-root-service-type
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memcached-shepherd-service)
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(service-extension account-service-type
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(const %memcached-accounts))))
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(default-value (memcached-configuration))))
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;;;
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;;; MySQL.
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@ -0,0 +1,121 @@
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;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2017 Christopher Baines <mail@cbaines.net>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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;;; GNU Guix is free software; you can redistribute it and/or modify it
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;;; under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 3 of the License, or (at
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;;; your option) any later version.
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;;;
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;;; GNU Guix is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
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(define-module (gnu tests databases)
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#:use-module (gnu tests)
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#:use-module (gnu system)
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#:use-module (gnu system file-systems)
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#:use-module (gnu system shadow)
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#:use-module (gnu system vm)
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#:use-module (gnu services)
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#:use-module (gnu services databases)
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#:use-module (gnu services networking)
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#:use-module (guix gexp)
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#:use-module (guix store)
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#:export (%test-memcached))
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(define %memcached-os
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(simple-operating-system
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(dhcp-client-service)
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(service memcached-service-type)))
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(define* (run-memcached-test #:optional (port 11211))
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"Run tests in %MEMCACHED-OS, forwarding PORT."
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(define os
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(marionette-operating-system
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%memcached-os
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#:imported-modules '((gnu services herd)
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(guix combinators))))
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(define vm
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(virtual-machine
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(operating-system os)
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(port-forwardings `((11211 . ,port)))))
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(define test
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(with-imported-modules '((gnu build marionette))
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#~(begin
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(use-modules (srfi srfi-11) (srfi srfi-64)
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(gnu build marionette)
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(ice-9 rdelim))
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(define marionette
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(make-marionette (list #$vm)))
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(mkdir #$output)
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(chdir #$output)
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(test-begin "memcached")
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;; Wait for memcached to be up and running.
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(test-eq "service running"
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'running!
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(marionette-eval
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'(begin
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(use-modules (gnu services herd))
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(start-service 'memcached)
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'running!)
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marionette))
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(let* ((ai (car (getaddrinfo "localhost"
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#$(number->string port))))
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(s (socket (addrinfo:fam ai)
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(addrinfo:socktype ai)
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(addrinfo:protocol ai)))
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(key "testkey")
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(value "guix"))
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(connect s (addrinfo:addr ai))
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(test-equal "set"
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"STORED\r"
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(begin
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(simple-format s "set ~A 0 60 ~A\r\n~A\r\n"
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key
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(string-length value)
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value)
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(read-line s)))
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(test-equal "get"
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(simple-format #f "VALUE ~A 0 ~A\r~A\r"
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key
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(string-length value)
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value)
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(begin
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(simple-format s "get ~A\r\n" key)
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(string-append
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(read-line s)
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(read-line s))))
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(close-port s))
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;; There should be a log file in here.
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(test-assert "log file"
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(marionette-eval
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'(file-exists? "/var/log/memcached")
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marionette))
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(test-end)
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(exit (= (test-runner-fail-count (test-runner-current)) 0)))))
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(gexp->derivation "memcached-test" test))
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(define %test-memcached
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(system-test
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(name "memcached")
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(description "Connect to a running MEMCACHED server.")
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(value (run-memcached-test))))
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