mm.c

#include "mm.h"
#include "util.h"
#include <stdio.h>
#include <string.h>

void
mm(Args *arg, char *buff, int bufflen)
{
        char buffer[256];
        int memTotal = 0, memAvailable = 0;
        FILE *file = fopen("/proc/meminfo", "r");
        if (file == NULL) return;

        while (fgets(buffer, sizeof(buffer), file) != NULL) {
                if (strncmp(buffer, "MemTotal:", 9) == 0) {
                        sscanf(buffer + 9, "%d", &memTotal);
                } else if (strncmp(buffer, "MemAvailable:", 13) == 0) {
                        sscanf(buffer + 13, "%d", &memAvailable);
                }
        }
        fclose(file);

        float usage = (float) (memTotal - memAvailable) / 1024.0 /
                      1024.0; // Convert to GB

        snprintf(buff, bufflen, "%s%4.2fGb", getIcon(arg, usage), usage);
}