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