source: trunk-3.0/source/torture/msgtest.c@ 103

/* 
   Unix SMB/CIFS implementation.
   Copyright (C) Andrew Tridgell 2000
   
   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.
   
   This program 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 this program; if not, write to the Free Software
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

/*
  test code for internal messaging
 */

#include "includes.h"

static int pong_count;


/****************************************************************************
a useful function for testing the message system
****************************************************************************/
static void pong_message(int msg_type, struct process_id src,
                         void *buf, size_t len, void *private_data)
{
        pong_count++;
}

 int main(int argc, char *argv[])
{
        pid_t pid;
        int i, n;
        char buf[12];

        load_case_tables();

        setup_logging(argv[0],True);
        
        lp_load(dyn_CONFIGFILE,False,False,False,True);

        message_init();

        if (argc != 3) {
                fprintf(stderr, "%s: Usage - %s pid count\n", argv[0],
                        argv[0]);
                exit(1);
        }

        pid = atoi(argv[1]);
        n = atoi(argv[2]);

        message_register(MSG_PONG, pong_message, NULL);

        for (i=0;i<n;i++) {
                message_send_pid(pid_to_procid(pid), MSG_PING, NULL, 0, True);
        }

        while (pong_count < i) {
                message_dispatch();
                smb_msleep(1);
        }

        /* Now test that the duplicate filtering code works. */
        pong_count = 0;

        safe_strcpy(buf, "1234567890", sizeof(buf)-1);

        for (i=0;i<n;i++) {
                message_send_pid(pid_to_procid(getpid()), MSG_PING,
                                 NULL, 0, False);
                message_send_pid(pid_to_procid(getpid()), MSG_PING,
                                 buf, 11, False);
        }

        for (i=0;i<n;i++) {
                message_dispatch();
                smb_msleep(1);
        }

        if (pong_count != 2) {
                fprintf(stderr, "Duplicate filter failed (%d).\n", pong_count);
        }

        /* Speed testing */

        pong_count = 0;

        {
                struct timeval tv = timeval_current();
                size_t timelimit = n;
                size_t ping_count = 0;

                printf("Sending pings for %d seconds\n", (int)timelimit);
                while (timeval_elapsed(&tv) < timelimit) {              
                        if(NT_STATUS_IS_OK(message_send_pid(pid_to_procid(pid),
                                                            MSG_PING,
                                                            buf, 11, False)))
                           ping_count++;
                        if(NT_STATUS_IS_OK(message_send_pid(pid_to_procid(pid),
                                                            MSG_PING,
                                                            NULL, 0, False)))
                           ping_count++;

                        while (ping_count > pong_count + 20) {
                                message_dispatch();
                        }
                }
                
                printf("waiting for %d remaining replies (done %d)\n", 
                       (int)(ping_count - pong_count), pong_count);
                while (timeval_elapsed(&tv) < 30 && pong_count < ping_count) {
                        message_dispatch();
                }
                
                if (ping_count != pong_count) {
                        fprintf(stderr, "ping test failed! received %d, sent "
                                "%d\n", pong_count, (int)ping_count);
                }
                
                printf("ping rate of %.0f messages/sec\n", 
                       (ping_count+pong_count)/timeval_elapsed(&tv));
        }

        return (0);
}