61 lines
2.5 KiB
Scheme
61 lines
2.5 KiB
Scheme
|
;;; Guix --- Nix package management from Guile. -*- coding: utf-8 -*-
|
||
|
|
;;; Copyright (C) 2012 Ludovic Courtès <ludo@gnu.org>
|
||
|
|
;;;
|
||
|
|
;;; This file is part of Guix.
|
||
|
|
;;;
|
||
|
|
;;; 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.
|
||
|
|
;;;
|
||
|
|
;;; 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 Guix. If not, see <http://www.gnu.org/licenses/>.
|
||
|
|
|
||
|
|
(define-module (distro packages pth)
|
||
|
|
#:use-module (guix packages)
|
||
|
|
#:use-module (guix ftp)
|
||
|
|
#:use-module (guix build-system gnu))
|
||
|
|
|
||
|
|
(define-public pth
|
||
|
|
(package
|
||
|
|
(name "pth")
|
||
|
|
(version "2.0.7")
|
||
|
|
(source
|
||
|
|
(origin
|
||
|
|
(method ftp-fetch)
|
||
|
|
(uri (string-append "ftp://ftp.gnu.org/gnu/pth/pth-" version
|
||
|
|
".tar.gz"))
|
||
|
|
(sha256
|
||
|
|
(base32
|
||
|
|
"0ckjqw5kz5m30srqi87idj7xhpw6bpki43mj07bazjm2qmh3cdbj"))))
|
||
|
|
(build-system gnu-build-system)
|
||
|
|
(arguments '(#:parallel-build? #f))
|
||
|
|
(home-page "http://www.gnu.org/software/pth")
|
||
|
|
(synopsis "The GNU Portable Threads library")
|
||
|
|
(description
|
||
|
|
"Pth is a very portable POSIX/ANSI-C based library for Unix
|
||
|
|
platforms which provides non-preemptive priority-based scheduling for
|
||
|
|
multiple threads of execution (aka ``multithreading'') inside
|
||
|
|
event-driven applications. All threads run in the same address space of
|
||
|
|
the server application, but each thread has it's own individual
|
||
|
|
program-counter, run-time stack, signal mask and errno variable.
|
||
|
|
|
||
|
|
The thread scheduling itself is done in a cooperative way, i.e., the
|
||
|
|
threads are managed by a priority- and event-based non-preemptive
|
||
|
|
scheduler. The intention is that this way one can achieve better
|
||
|
|
portability and run-time performance than with preemptive
|
||
|
|
scheduling. The event facility allows threads to wait until various
|
||
|
|
types of events occur, including pending I/O on file descriptors,
|
||
|
|
asynchronous signals, elapsed timers, pending I/O on message ports,
|
||
|
|
thread and process termination, and even customized callback functions.
|
||
|
|
|
||
|
|
Additionally Pth provides an optional emulation API for POSIX.1c
|
||
|
|
threads (\"Pthreads\") which can be used for backward compatibility to
|
||
|
|
existing multithreaded applications.")
|
||
|
|
(license #f)))
|