60 lines
1.7 KiB
C
60 lines
1.7 KiB
C
/*
|
|
* mem_linux.c - get memory status
|
|
*
|
|
* Copyright (C) 2003 Draghicioiu Mihai <misuceldestept@go.ro>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Street #330, Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
|
|
long long int mem_total, mem_used, mem_free, mem_shared, mem_buffers, mem_cached;
|
|
long long int swp_total, swp_used, swp_free;
|
|
|
|
void mem_getfree()
|
|
{
|
|
FILE *file;
|
|
int count;
|
|
|
|
file = fopen("/proc/meminfo", "r");
|
|
if(!file)
|
|
{
|
|
perror("/proc/meminfo");
|
|
exit(1);
|
|
}
|
|
count = fscanf(file, "MemTotal: %lld kB MemFree: %lld kB "
|
|
"MemAvailable: %*d kB Buffers: %lld kB Cached: %lld kB",
|
|
&mem_total, &mem_free, &mem_buffers, &mem_cached);
|
|
if (count != 4) {
|
|
mem_total = 1;
|
|
mem_free = 1;
|
|
mem_buffers = 0;
|
|
mem_cached = 0;
|
|
}
|
|
for (int i = 0; i < 10; i++) {
|
|
while (fgetc(file) != '\n') {}
|
|
}
|
|
count = fscanf(file, "SwapTotal: %lld kB SwapFree: %lld kB",
|
|
&swp_total, &swp_free);
|
|
if (count != 2) {
|
|
swp_total = 1;
|
|
swp_free = 1;
|
|
}
|
|
fclose(file);
|
|
mem_used = mem_total - mem_free;
|
|
swp_used = swp_total - swp_free;
|
|
}
|