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motelog.c from EmStar at Krugle


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/*
 *
 * Copyright (c) 2006 The Regents of the University of California.  All 
 * rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 *
 * - Neither the name of the University nor the names of its
 *   contributors may be used to endorse or promote products derived
 *   from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS''
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
 * PARTICULAR  PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */

#include <stdio.h>
#include <stdlib.h>

#include "emrun/emrun.h"
#include "link/link.h"
#include "libmisc/misc.h"

#include "../tos-contrib/VehicleTest/apps/VehicleTypes.h"
#include <link/link_headers.h>

struct timeval start_time;
FILE *syncf;

int handle_input(void *data, int fd, int cond, g_event_t *event);
int request_speed(void * data, int interval, g_event_t *event);
int vehicle_config(int fd);

int dump_packet(lu_context_t *link, link_pkt_t *hdr, ssize_t data_len)
{
  struct vehicle_sync *vs = (struct vehicle_sync *)(hdr->data);
  struct vehicle_event *ve = (struct vehicle_event *)(hdr->data);

  /* adjust times from start of test */
  struct timeval ts = hdr->rcv_time;
  misc_tv_sub(&ts, &start_time);

  /* $$ if rate known could convert these timestamps to samples.. */
  /* $$ maybe want absolute timestamps */
  
  if (hdr->type == PKT_TYPE_TOS) {
    switch (hdr->ext_type) {
    case VEHICLE_SYNC:
      fprintf(syncf, "%ld.%06ld %d 0 0 sync\n",
	      ts.tv_sec, ts.tv_usec, vs->mark);
      break;

    case VEHICLE_EVENT:
      fprintf(syncf, "%ld.%06ld 0 %d 0 event\n",
	      ts.tv_sec, ts.tv_usec, ve->id);
      break;

    default:
      break;
    }
  }
  
  fflush(syncf);
  
  free(hdr);
  return EVENT_RENEW;
}


void usage(char *name)
{
  misc_print_usage
    (name, 
     "-U <link> ",
     "  --uses <link>: specify the link to use\n"
     "  --outfile: specify the log file name\n"
     "  --serial: specify serial port for obd tool\n"
     "\n"
     );

  exit(1);
}


void dump_shutdown(void *data)
{
  fclose(syncf);
  elog(LOG_NOTICE, "linkdump shutting down");
  exit(0);
}


int main(int argc, char **argv)
{
  lu_opts_t opts = {
    receive: dump_packet,
  };

  /* generic initialization common to all programs */
  misc_init(&argc, argv, CVSTAG);

  /* parse options */
  opts.opts.name = link_parse_uses(&argc, argv, NULL);

  char *sync_fn;
  sync_fn = misc_parse_out_option(&argc, argv, "outfile", 0);

  char *serial;
  serial = misc_parse_out_option(&argc, argv, "serial", 0);

  int reset = misc_parse_out_switch(&argc, argv, "reset", 0);
  
  /* verify name present */
  if (opts.opts.name == NULL) {
    elog(LOG_CRIT, "Please specify --uses!");
    usage(argv[0]);
  }

  /* add'l args? */
  if (misc_args_remain(&argc, argv)) {
    elog(LOG_CRIT, "Additional unparsed arguments!");
    usage(argv[0]);
  }

  syncf = fopen(sync_fn, "w");
  if (syncf == NULL) {
    elog(LOG_CRIT, "unable to open output file %s: %m", sync_fn);
    exit(1);
  }

  /* init link event */
  lu_context_t *lu = NULL;
  if (lu_open(&opts, &lu) < 0) {
    elog(LOG_CRIT, "Unable to open link %s: %m", link_name(&(opts.opts), NULL));
    usage(argv[0]);
  }

  if (reset) {
    link_pkt_t pkt = {
      dst: {
	id: LINK_BROADCAST
      },
      type: PKT_TYPE_TOS,
      ext_type: VEHICLE_RESET
    };
    int i=0;

    for (i=0; i<5; i++) {
      if (lu_send(lu, &pkt, 1) < 0) {
	fprintf(stderr, "***Unable to send reset packet! %m \n");
      }
    }
    exit(0);
  }

  gettimeofday(&start_time, NULL);
  fprintf(syncf, "#h time mark id type\n");

  if (serial) {
    int fd = open(serial, O_RDWR | O_NOCTTY | O_NONBLOCK);
    if (fd < 0) {
      elog(LOG_CRIT, "Unable to open serial port %s: %m", serial);
      exit(1);
    }
    
    vehicle_config(fd);

    if (g_event_add(fd, FUSD_NOTIFY_INPUT, handle_input,
		    NULL, NULL, NULL) < 0) {
      elog(LOG_CRIT, "Can't create event for new socket: %m");
      exit(1);
    }
    
    g_timer_add(500, request_speed, NULL, NULL, NULL);
  }

  /*
   * Start the event loop running - it should never exit (the shutdown
   * handler is called when the program is supposed to stop)
   */
  emrun_opts_t emrun_opts = {
    shutdown: dump_shutdown,
    silent: 1
  };

  emrun_init(&emrun_opts); /* this should be the last initialization */
  g_main();
  elog_g(LOG_CRIT, "event loop terminated abnormally!");
  return 0;
}





See more files for this project here

EmStar

EmStar is a software system for developing and deploying wireless sensor networks involving Linux-based platforms. As the wireless sensor network community has attempted to deploy more complex designs---large-scale, long-lived systems that need self-organization and adaptivity---a number of difficult software design issues have arisen. Advances in software design have not kept pace with the capabilities of hardware. This is because designing for an adaptive, efficient, and useful sensor network has turned out to be surprisingly complex and difficult. EmStar is a Linux-based software framework, whose goal is to dramatically reduce this complexity, enabling work to be shared and reused, and simplifying and speeding the design of new sensor network applications.

Project homepage: http://cvs.cens.ucla.edu/emstar/
Programming language(s): C,Shell Script
License: other

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