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 3 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, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #include "perf.h"
  22
  23 void get_meminfo(PERF_DATA_BLOCK *data)
  24 {
  25     int status;
  26     struct sysinfo info;
  27     status = sysinfo(&info);
  28
  29     data->memInfo.data->availPhysKb = (info.freeram * info.mem_unit)/1024;
  30     data->memInfo.data->availSwapKb = (info.freeswap * info.mem_unit)/1024;
  31     data->memInfo.data->totalPhysKb = (info.totalram * info.mem_unit)/1024;
  32     data->memInfo.data->totalSwapKb = (info.totalswap * info.mem_unit)/1024;
  33
  34     /* Also get uptime since we have the structure */
  35     data->PerfTime = (unsigned long)info.uptime;
  36
  37     return;
  38 }
  39
  40 void init_memdata_desc(PERF_DATA_BLOCK *data)
  41 {
  42     init_perf_counter(&(data->memInfo.memObjDesc),
  43                       &(data->memInfo.memObjDesc),
  44                       get_counter_id(data),
  45                       "Memory",
  46                       "The Memory performance object consists of counters that describe the behavior of physical and virtual memory on the computer.",
  47                       0,
  48                       PERF_OBJECT);
  49     init_perf_counter(&(data->memInfo.availPhysKb),
  50                       &(data->memInfo.memObjDesc),
  51                       get_counter_id(data),
  52                       "Available Physical Kilobytes",
  53                       "Available Physical Kilobytes is the number of free kilobytes in physical memory",
  54                       PERF_SIZE_DWORD | PERF_TYPE_NUMBER | PERF_NUMBER_DECIMAL | PERF_DISPLAY_NO_SUFFIX,
  55                       PERF_COUNTER);
  56     init_perf_counter(&(data->memInfo.availSwapKb),
  57                       &(data->memInfo.memObjDesc),
  58                       get_counter_id(data),
  59                       "Available Swap Kilobytes",
  60                       "Available Swap Kilobytes is the number of free kilobytes in swap space",
  61                       PERF_SIZE_DWORD | PERF_TYPE_NUMBER | PERF_NUMBER_DECIMAL | PERF_DISPLAY_NO_SUFFIX,
  62                       PERF_COUNTER);
  63     init_perf_counter(&(data->memInfo.totalPhysKb),
  64                       &(data->memInfo.memObjDesc),
  65                       get_counter_id(data),
  66                       "Total Physical Kilobytes",
  67                       "Total Physical Kilobytes is a base counter",
  68                       PERF_SIZE_DWORD | PERF_TYPE_NUMBER | PERF_NUMBER_DECIMAL | PERF_COUNTER_BASE | PERF_DISPLAY_NOSHOW,
  69                       PERF_COUNTER);
  70     init_perf_counter(&(data->memInfo.totalSwapKb),
  71                       &(data->memInfo.memObjDesc),
  72                       get_counter_id(data),
  73                       "Total Swap Kilobytes",
  74                       "Total Swap Kilobytes is a base counter",
  75                       PERF_SIZE_DWORD | PERF_TYPE_NUMBER | PERF_NUMBER_DECIMAL | PERF_COUNTER_BASE | PERF_DISPLAY_NOSHOW,
  76                       PERF_COUNTER);
  77
  78     return;
  79 }
  80
  81 void init_mem_data(PERF_DATA_BLOCK *data)
  82 {
  83     data->memInfo.data = calloc(1, sizeof(*data->memInfo.data));
  84     if(!data->memInfo.data)
  85     {
  86         perror("init_memdata: out of memory");
  87         exit(1);
  88     }
  89
  90     init_memdata_desc(data);
  91
  92     get_meminfo(data);
  93
  94     return;
  95 }
  96
  97 void output_mem_desc(PERF_DATA_BLOCK *data, RuntimeSettings rt)
  98 {
  99     output_perf_desc(data->memInfo.memObjDesc, rt);
 100     output_perf_desc(data->memInfo.availPhysKb, rt);
 101     output_perf_desc(data->memInfo.availSwapKb, rt);
 102     output_perf_desc(data->memInfo.totalPhysKb, rt);
 103     output_perf_desc(data->memInfo.totalSwapKb, rt);
 104
 105     return;
 106 }
 107
 108 void output_meminfo(PERF_DATA_BLOCK *data, RuntimeSettings rt, int tdb_flags)
 109 {
 110     output_perf_counter(data->memInfo.availPhysKb,
 111                         (unsigned long long)data->memInfo.data->availPhysKb,
 112                         rt, tdb_flags);
 113     output_perf_counter(data->memInfo.availSwapKb,
 114                         (unsigned long long)data->memInfo.data->availSwapKb,
 115                         rt, tdb_flags);
 116     output_perf_counter(data->memInfo.totalPhysKb,
 117                         (unsigned long long)data->memInfo.data->totalPhysKb,
 118                         rt, tdb_flags);
 119     output_perf_counter(data->memInfo.totalSwapKb,
 120                         (unsigned long long)data->memInfo.data->totalSwapKb,
 121                         rt, tdb_flags);
 122
 123     return;
 124 }