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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "common.h"
#include "tools.h"
void status_memusage(GlobalData *g)
{
StatusItem s;
char text[16] = { 0 };
char *stline = NULL;
size_t stlen;
FILE *stfile;
long long memtotal = 0;
long long memfree = 0;
long long memused;
long long membuffers = 0;
long long memcached = 0;
long long slab_reclaimable = 0;
statusitem_init(&s);
s.text = text;
stfile = fopen("/proc/meminfo", "r");
if (stfile != NULL) {
stlen = getline(&stline, &stlen, stfile);
memtotal = atoll(&stline[16]);
stlen = getline(&stline, &stlen, stfile);
memfree = atoll(&stline[16]);
stlen = getline(&stline, &stlen, stfile);
if (stlen > 13 && !memcmp(stline, "MemAvailable:", 13)) {
stlen = getline(&stline, &stlen, stfile);
}
membuffers = atoll(&stline[16]);
stlen = getline(&stline, &stlen, stfile);
memcached = atoll(&stline[16]);
while (0 < (stlen = getline(&stline, &stlen, stfile))) {
if (stlen > 13 && !memcmp(stline, "SReclaimable:", 13)) {
slab_reclaimable = atoll(&stline[16]);
break;
}
}
free(stline);
fclose(stfile);
memused = memtotal - memfree - memcached - slab_reclaimable - membuffers;
memused /= 1024; // Just show MBs used
/* Change color based on % of RAM used */
if ((float)memused / (float)memtotal < 0.85) {
s.color = "#22FF22"; // green
} else {
s.color = "#FF0000"; // red
}
snprintf(text, sizeof(text), "Mem: %lld M", memused);
line_append_item(g, &s);
}
}
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