test_first.c

This a framework to test new ideas in transmission technology. Actual development is a LDPC-coder in

/***************************************************************************
              test_first.c  -  RTLinux kernel module for a first chain!!
                            -------------------
    begin                :  2002
    authors              :  Linus Gasser
    emails               :  [e-mail]
 ***************************************************************************/

/***************************************************************************
                                 Changes
                                 -------
 date - name - description
 02-09-20 - ineiti - begin
 02-12-19 - ineiti - it's nice to have this one...
 03-02-28 - ineiti - clean up
 04/03/03 - ineiti - added description
 
 **************************************************************************/

/***************************************************************************
 *                                                                         *
 *   This program 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 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/

char desc[] =
"Description:\n"
"A first chain, a source and a sink. Kind of kept in here for\n"
"historical reasons. The output should be the testphrase.\n\n";

#include "spc.h"
#include "std.h"

#define DBG_LVL 0


struct chain_t *first;

void *start_it( void *arg ) {
  swr_sdb_id source, sink;
  int i;

  first = swr_chain_create( NEW_SPC_VAR( "source", source ),
                            NEW_SPC_VAR( "sink", sink ),
                            CHAIN_END );

  swr_sdb_set_config_int( sink, "flag", 1 );
  swr_sdb_set_config_int( sink, "size", 128 );
  // Do something
  for ( i=0; i<1; i++ ) {
    PR_DBG( 0, "Sending request...\n" );
    swr_sdb_send_msg( source, SUBS_MSG_USER, NULL, -1 );
    usleep( 100000 );
  }

  return 0;
}

swr_spc_id_t spm_id;

struct thread start;
/**
 * This function is called upon "insmod" and is used to register the
 * different parts of the module to the SPM.
 */
int um_module_init(void) {

  PR_CL( desc );
  if ( swr_thread_init( &start, start_it, NULL ) < 0 )
    goto first_no_stack;
  return 0;

first_no_stack:
  PR_DBG( 0, "Couldn't allocate stack\n" );
  return -1;
}

void um_module_exit( void ) {

  swr_thread_free( &start, NULL );
  swr_chain_destroy( first );
}


module_init( um_module_init );
module_exit( um_module_exit );