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Viewing changes to kinfocenter/Modules/memory/memory_linux.cpp

  • Committer: Bazaar Package Importer
  • Author(s): Michał Zając
  • Date: 2011-07-09 08:31:15 UTC
  • Revision ID: james.westby@ubuntu.com-20110709083115-ohyxn6z93mily9fc
Tags: upstream-4.6.90
Import upstream version 4.6.90

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kinfocenter/Modules/memory/memory_linux.cpp
 
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#include <sys/sysinfo.h>
 
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#include <unistd.h>
 
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#include <stdlib.h>
 
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#include <QFile>
 
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void KCMMemory::fetchValues()
 
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{
 
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  struct sysinfo info;
 
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  sysinfo(&info);       /* Get Information from system... */
 
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  /* 
 
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   * The sysinfo.mem_unit member variable is not available in older 2.4 kernels.
 
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   * If you have troubles compiling this code, set mem_unit to "1".
 
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   */
 
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  const int mem_unit = info.mem_unit;
 
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  memoryInfos[TOTAL_MEM]    = MEMORY(info.totalram)  * mem_unit; // total physical memory (without swaps)
 
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  memoryInfos[FREE_MEM]     = MEMORY(info.freeram)   * mem_unit; // total free physical memory (without swaps)
 
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  memoryInfos[SHARED_MEM]   = MEMORY(info.sharedram) * mem_unit; 
 
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  memoryInfos[BUFFER_MEM]   = MEMORY(info.bufferram) * mem_unit; 
 
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  memoryInfos[SWAP_MEM]     = MEMORY(info.totalswap) * mem_unit; // total size of all swap-partitions
 
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  memoryInfos[FREESWAP_MEM] = MEMORY(info.freeswap)  * mem_unit; // free memory in swap-partitions
 
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  QFile file("/proc/meminfo");
 
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  if (file.open(QIODevice::ReadOnly)) {
 
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        char buf[512];
 
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        while (file.readLine(buf, sizeof(buf) - 1) > 0) {
 
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                if (strncmp(buf,"Cached:",7)==0) {
 
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                        unsigned long v;
 
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                        v = strtoul(&buf[7],NULL,10);                   
 
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                        memoryInfos[CACHED_MEM] = MEMORY(v) * 1024; // Cached memory in RAM
 
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                        break;
 
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                }
 
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        }
 
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        file.close();
 
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  }
 
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}
 
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