rtop.c

   1 /*
   2  * Copyright (c) 2004 Teodor Sigaev <teodor@sigaev.ru>
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *      notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *      notice, this list of conditions and the following disclaimer in the
  12  *      documentation and/or other materials provided with the distribution.
  13  * 3. Neither the name of the author nor the names of any co-contributors
  14  *      may be used to endorse or promote products derived from this software
  15  *      without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY CONTRIBUTORS ``AS IS'' AND ANY EXPRESS
  18  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED. IN NO EVENT SHALL CONTRIBUTORS BE LIABLE FOR ANY
  21  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
  23  * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  24  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
  25  * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  26  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
  27  * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  */
  29 #include <stdio.h>
  30 #include <stdlib.h>
  31 #include <string.h>
  32 #include <unistd.h>
  33 #include <signal.h>
  34 #include <errno.h>
  35 #include <sys/sysctl.h>
  36 #include <sys/types.h>
  37 #include <sys/time.h>
  38 #include <sys/socket.h>
  39 #include <netinet/in.h>
  40 #include <arpa/inet.h>
  41
  42 #include "tlog.h"
  43 #include "connection.h"
  44 #include "tmalloc.h"
  45 #include "top.h"
  46
  47 int
  48 main( int argc, char *argv[] ) {
  49         int ch;
  50         int debug=0;
  51         char *host="127.0.0.1";
  52         int port=TOPD_SERVER_DEFAULT_PORT;
  53         int i;
  54
  55         MassiveUnit *mu;
  56         TCMsg   *pmsg = (TCMsg*)malloc( TCMSGHDRSZ );
  57         TC_Connection  cs;
  58
  59         pmsg->type = TOPGETTYPE;
  60         pmsg->len = TCMSGHDRSZ;
  61
  62         while( (ch=getopt(argc, argv, "Dh:p:"))!=-1) {
  63                 switch(ch) {
  64                         case 'D':
  65                                 debug=1;
  66                                 break;
  67                         case 'h':
  68                                 host=strdup(optarg);
  69                                 break;
  70                         case 'p':
  71                                 port=atoi(optarg);
  72                                 break;
  73                         default:
  74                                 return 1;
  75                 }
  76         }
  77
  78         if ( debug )
  79                 opentlog( TL_OPEN_STDERR,  TL_DEBUG, NULL);
  80         else
  81                 opentlog( TL_OPEN_SYSLOG, TL_INFO, NULL);
  82
  83         TC_fillConnection(&cs, host, port);
  84         cs.buf = (char*)pmsg;
  85         cs.len = pmsg->len;
  86         if ( TC_Talk(&cs) == CS_OK ) {
  87                 pmsg = (TCMsg*) cs.buf;
  88                 mu = (MassiveUnit*)pmsg->data;
  89
  90                 printf("\tIP\tLoad\tFree\tTotal\tData\n");
  91                 for(i=0; i<mu->number; i++)
  92                         printf("%s\t%.2f\t%.1fM\t%.1fM\t%s",
  93                                 inet_ntoa(mu->units[i].ip),
  94                                 mu->units[i].top.load,
  95                                 ((float) mu->units[i].top.freemem)/( 1024*1024.0 ),
  96                                 ((float) mu->units[i].top.usermem)/( 1024*1024.0 ),
  97                                 ctime( &(mu->units[i].stamp) )
  98                         );
  99         }
 100
 101         TC_FreeConnection(&cs);
 102
 103         return 0;
 104 }
 105