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/*
* The Spread Toolkit.
*
* The contents of this file are subject to the Spread Open-Source
* License, Version 1.0 (the ``License''); you may not use
* this file except in compliance with the License. You may obtain a
* copy of the License at:
*
* http://www.spread.org/license/
*
* or in the file ``license.txt'' found in this distribution.
*
* Software distributed under the License is distributed on an AS IS basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Creators of Spread are:
* Yair Amir, Michal Miskin-Amir, Jonathan Stanton.
*
* Copyright (C) 1993-2004 Spread Concepts LLC <spread@spreadconcepts.com>
*
* All Rights Reserved.
*
* Major Contributor(s):
* ---------------
* Cristina Nita-Rotaru crisn@cs.purdue.edu - group communication security.
* Theo Schlossnagle jesus@omniti.com - Perl, skiplists, autoconf.
* Dan Schoenblum dansch@cnds.jhu.edu - Java interface.
* John Schultz jschultz@cnds.jhu.edu - contribution to process group membership.
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "sp.h"
#define MAX_BYTES 100000
static char User[80];
static char Spread_name[80];
static char Private_group[MAX_GROUP_NAME];
static mailbox Mbox;
static int Num_bytes;
static int Num_messages;
static int Read_only, Write_only;
static void Usage( int argc, char *argv[] );
static void Print_help();
int main( int argc, char *argv[] )
{
int ret;
int service_type, num_groups;
char ret_groups[5][MAX_GROUP_NAME];
char sender[MAX_GROUP_NAME];
char mess[MAX_BYTES] ;
char recv_mess[MAX_BYTES] ;
int16 dummy_mess_type;
int dummy_endian_mismatch;
int i;
Usage( argc, argv );
/* connecting to the relevant Spread daemon, no need for group info */
printf("flooder: connecting to %s\n", Spread_name );
ret = SP_connect( Spread_name, User, 0, 0, &Mbox, Private_group ) ;
if(ret < 0)
{
SP_error( ret );
exit(1) ;
}
/*
* Joining the process group.
*
* Note that this is not necessary in order to multicast the
* messages, but only to demonstrate end-to-end behaviour.
*/
if( Read_only )
{
printf("flooder: Only receiving messages\n");
SP_join( Mbox, "flooder" );
}else if( Write_only ) {
printf("flooder: starting multicast of %d messages, %d bytes each (self discarding).\n", Num_messages, Num_bytes);
}else{
SP_join( Mbox, "flooder" );
printf("flooder: starting multicast of %d messages, %d bytes each.\n", Num_messages, Num_bytes);
}
for( i=1; i <= Num_messages; i++ )
{
/* multicast a message unless Read_only */
if( !Read_only )
{
ret = SP_multicast( Mbox, RELIABLE_MESS, "flooder", 0, Num_bytes, mess );
if( ret != Num_bytes )
{
if( ret < 0 )
{
SP_error( ret );
exit(1);
}
printf("sent a different message %d -> %d\n", Num_bytes, ret );
}
}
/* receive a message (Read_only) or one of my messages */
if( Read_only || ( i > 200 && !Write_only ) )
{
do{
service_type = 0;
ret = SP_receive( Mbox, &service_type, sender, 5, &num_groups, ret_groups,
&dummy_mess_type, &dummy_endian_mismatch, sizeof(recv_mess), recv_mess );
if( ret < 0 )
{
if ( (ret == GROUPS_TOO_SHORT) || (ret == BUFFER_TOO_SHORT) ) {
service_type = DROP_RECV;
printf("\n========Buffers or Groups too Short=======\n");
ret = SP_receive( Mbox, &service_type, sender, 5, &num_groups, ret_groups,
&dummy_mess_type, &dummy_endian_mismatch, sizeof(recv_mess), recv_mess );
}
}
if( ret < 0 )
{
SP_error( ret );
exit(1);
}
} while( strcmp( sender, Private_group ) != 0 && !Read_only );
}
/* report some progress... */
if( i%1000 == 0 ) printf("flooder: completed %6d messages of %d bytes\n",i, ret);
}
printf("flooder: completed multicast of %d messages, %d bytes each.\n", Num_messages, Num_bytes);
return 0;
}
static void Usage(int argc, char *argv[])
{
/* Setting defaults */
sprintf( User, "flooder" );
sprintf( Spread_name, "4803@localhost");
Num_bytes = 1000;
Num_messages = 10000;
Read_only = 0;
Write_only = 0;
while( --argc > 0 )
{
argv++;
if( !strncmp( *argv, "-u", 2 ) )
{
if (argc < 2) Print_help();
strcpy( User, argv[1] );
argc--; argv++;
}else if( !strncmp( *argv, "-b", 2 ) ){
if (argc < 2) Print_help();
sscanf(argv[1], "%d", &Num_bytes );
argc--; argv++;
}else if( !strncmp( *argv, "-m", 2 ) ){
if (argc < 2) Print_help();
sscanf(argv[1], "%d", &Num_messages );
argc--; argv++;
}else if( !strncmp( *argv, "-s", 2 ) ){
if (argc < 2) Print_help();
strcpy( Spread_name, argv[1] );
argc--; argv++;
}else if( !strncmp( *argv, "-ro", 3 ) ){
Read_only = 1;
Write_only = 0;
}else if( !strncmp( *argv, "-wo", 3 ) ){
Write_only = 1;
Read_only = 0;
}else{
Print_help();
}
}
}
static void Print_help()
{
printf( "Usage: flooder\n%s\n%s\n%s\n%s\n%s\n%s\n",
"\t[-u <user name>] : unique (in this machine) user name",
"\t[-m <num messages>] : number of messages",
"\t[-b <num bytes>] : number of bytes per message 1-100,000",
"\t[-s <spread name>] : either port or port@machine",
"\t[-ro] : read only (no multicast)",
"\t[-wo] : write only (no receive)");
exit(1);
}
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