examples/perfcounter/perf_writer_mem.c

   1 /*
   2  *  Unix SMB/CIFS implementation.
   3  *  Performance Counter Daemon
   4  *
   5  *  Copyright (C) Marcin Krzysztof Porwit    2005
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License as published by
   9  *  the Free Software Foundation; either version 2 of the License, or
  10  *  (at your option) any later version.
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; if not, write to the Free Software
  19  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20  */
  21
  22 #include "perf.h"
  23
  24 void get_meminfo(PERF_DATA_BLOCK *data)
  25 {
  26     int status;
  27     struct sysinfo info;
  28     status = sysinfo(&info);
  29
  30     data->memInfo.data->availPhysKb = (info.freeram * info.mem_unit)/1024;
  31     data->memInfo.data->availSwapKb = (info.freeswap * info.mem_unit)/1024;
  32     data->memInfo.data->totalPhysKb = (info.totalram * info.mem_unit)/1024;
  33     data->memInfo.data->totalSwapKb = (info.totalswap * info.mem_unit)/1024;
  34
  35     /* Also get uptime since we have the structure */
  36     data->PerfTime = (unsigned long)info.uptime;
  37
  38     return;
  39 }
  40
  41 void init_memdata_desc(PERF_DATA_BLOCK *data)
  42 {
  43     init_perf_counter(&(data->memInfo.memObjDesc),
  44                       &(data->memInfo.memObjDesc),
  45                       get_counter_id(data),
  46                       "Memory",
  47                       "The Memory performance object consists of counters that describe the behavior of physical and virtual memory on the computer.",
  48                       0,
  49                       PERF_OBJECT);
  50     init_perf_counter(&(data->memInfo.availPhysKb),
  51                       &(data->memInfo.memObjDesc),
  52                       get_counter_id(data),
  53                       "Available Physical Kilobytes",
  54                       "Available Physical Kilobytes is the number of free kilobytes in physical memory",
  55                       PERF_SIZE_DWORD | PERF_TYPE_NUMBER | PERF_NUMBER_DECIMAL | PERF_DISPLAY_NO_SUFFIX,
  56                       PERF_COUNTER);
  57     init_perf_counter(&(data->memInfo.availSwapKb),
  58                       &(data->memInfo.memObjDesc),
  59                       get_counter_id(data),
  60                       "Available Swap Kilobytes",
  61                       "Available Swap Kilobytes is the number of free kilobytes in swap space",
  62                       PERF_SIZE_DWORD | PERF_TYPE_NUMBER | PERF_NUMBER_DECIMAL | PERF_DISPLAY_NO_SUFFIX,
  63                       PERF_COUNTER);
  64     init_perf_counter(&(data->memInfo.totalPhysKb),
  65                       &(data->memInfo.memObjDesc),
  66                       get_counter_id(data),
  67                       "Total Physical Kilobytes",
  68                       "Total Physical Kilobytes is a base counter",
  69                       PERF_SIZE_DWORD | PERF_TYPE_NUMBER | PERF_NUMBER_DECIMAL | PERF_COUNTER_BASE | PERF_DISPLAY_NOSHOW,
  70                       PERF_COUNTER);
  71     init_perf_counter(&(data->memInfo.totalSwapKb),
  72                       &(data->memInfo.memObjDesc),
  73                       get_counter_id(data),
  74                       "Total Swap Kilobytes",
  75                       "Total Swap Kilobytes is a base counter",
  76                       PERF_SIZE_DWORD | PERF_TYPE_NUMBER | PERF_NUMBER_DECIMAL | PERF_COUNTER_BASE | PERF_DISPLAY_NOSHOW,
  77                       PERF_COUNTER);
  78
  79     return;
  80 }
  81
  82 void init_mem_data(PERF_DATA_BLOCK *data)
  83 {
  84     data->memInfo.data = calloc(1, sizeof(*data->memInfo.data));
  85     if(!data->memInfo.data)
  86     {
  87         perror("init_memdata: out of memory");
  88         exit(1);
  89     }
  90
  91     init_memdata_desc(data);
  92
  93     get_meminfo(data);
  94
  95     return;
  96 }
  97
  98 void output_mem_desc(PERF_DATA_BLOCK *data, RuntimeSettings rt)
  99 {
 100     output_perf_desc(data->memInfo.memObjDesc, rt);
 101     output_perf_desc(data->memInfo.availPhysKb, rt);
 102     output_perf_desc(data->memInfo.availSwapKb, rt);
 103     output_perf_desc(data->memInfo.totalPhysKb, rt);
 104     output_perf_desc(data->memInfo.totalSwapKb, rt);
 105
 106     return;
 107 }
 108
 109 void output_meminfo(PERF_DATA_BLOCK *data, RuntimeSettings rt, int tdb_flags)
 110 {
 111     output_perf_counter(data->memInfo.availPhysKb,
 112                         (unsigned long long)data->memInfo.data->availPhysKb,
 113                         rt, tdb_flags);
 114     output_perf_counter(data->memInfo.availSwapKb,
 115                         (unsigned long long)data->memInfo.data->availSwapKb,
 116                         rt, tdb_flags);
 117     output_perf_counter(data->memInfo.totalPhysKb,
 118                         (unsigned long long)data->memInfo.data->totalPhysKb,
 119                         rt, tdb_flags);
 120     output_perf_counter(data->memInfo.totalSwapKb,
 121                         (unsigned long long)data->memInfo.data->totalSwapKb,
 122                         rt, tdb_flags);
 123
 124     return;
 125 }