/*
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* Copyright (C) 2008 Philippe Gerum <rpm@xenomai.org>.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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*/
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#include <stdio.h>
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#include <string.h>
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#include <time.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <getopt.h>
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#include <xenomai/init.h>
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#include <copperplate/registry.h>
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#include <copperplate/clockobj.h>
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#include <copperplate/debug.h>
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#include <psos/psos.h>
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#include "internal.h"
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#include "tm.h"
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#include "task.h"
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#include "sem.h"
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#include "queue.h"
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#include "pt.h"
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#include "rn.h"
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/**
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* @defgroup psos pSOS® emulator
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*
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* A pSOS® emulation library on top of Xenomai.
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*
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* The emulator mimicks the behavior described in the public
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* documentation of the pSOS 2.x API for the following class of
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* services:
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*
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* - Tasks, Events, Queues, Semaphores
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* - Partitions, Regions, Timers
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*/
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int psos_long_names = 0;
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static unsigned int clock_resolution = 1000000; /* 1ms */
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static unsigned int time_slice_in_ticks = 5;
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static const struct option psos_options[] = {
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{
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#define clock_resolution_opt 0
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.name = "psos-clock-resolution",
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.has_arg = required_argument,
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},
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{
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#define time_slice_opt 1
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.name = "psos-time-slice",
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.has_arg = required_argument,
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},
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{
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#define long_names_opt 2
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.name = "psos-long-names",
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.has_arg = no_argument,
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.flag = &psos_long_names,
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.val = 1
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},
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{ /* Sentinel */ }
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};
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static int psos_parse_option(int optnum, const char *optarg)
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{
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switch (optnum) {
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case clock_resolution_opt:
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clock_resolution = atoi(optarg);
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break;
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case time_slice_opt:
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time_slice_in_ticks = atoi(optarg);
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break;
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case long_names_opt:
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break;
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default:
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/* Paranoid, can't happen. */
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return -EINVAL;
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}
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return 0;
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}
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static void psos_help(void)
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{
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fprintf(stderr, "--psos-clock-resolution=<ns> tick value (default 1ms)\n");
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fprintf(stderr, "--psos-time-slice=<psos-ticks> round-robin time slice\n");
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fprintf(stderr, "--psos-long-names enable long names for objects (> 4 characters)\n");
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}
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static int psos_init(void)
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{
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int ret;
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registry_add_dir("/psos");
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registry_add_dir("/psos/tasks");
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registry_add_dir("/psos/semaphores");
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registry_add_dir("/psos/queues");
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registry_add_dir("/psos/timers");
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registry_add_dir("/psos/partitions");
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registry_add_dir("/psos/regions");
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cluster_init(&psos_task_table, "psos.task");
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cluster_init(&psos_sem_table, "psos.sema4");
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cluster_init(&psos_queue_table, "psos.queue");
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pvcluster_init(&psos_pt_table, "psos.pt");
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pvcluster_init(&psos_rn_table, "psos.rn");
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ret = clockobj_init(&psos_clock, clock_resolution);
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if (ret) {
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warning("%s: failed to initialize pSOS clock (res=%u ns)",
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__FUNCTION__, clock_resolution);
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return __bt(ret);
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}
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/* Convert pSOS ticks to timespec. */
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clockobj_ticks_to_timespec(&psos_clock, time_slice_in_ticks, &psos_rrperiod);
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return 0;
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}
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static struct setup_descriptor psos_skin = {
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.name = "psos",
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.init = psos_init,
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.options = psos_options,
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.parse_option = psos_parse_option,
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.help = psos_help,
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};
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interface_setup_call(psos_skin);
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