[hackers] [slstatus] ram: Refactor Linux perc/used || drkhsh

[git]

commit d7ea986299db33e3bce7a8be742c1ecf32e9a76e
Author:     drkhsh <m...@drkhsh.at>
AuthorDate: Fri Oct 28 00:11:15 2022 +0200
Commit:     drkhsh <m...@drkhsh.at>
CommitDate: Fri Oct 28 01:03:20 2022 +0200

    ram: Refactor Linux perc/used
    
    Fixes up overly complicated line, by splitting up logic

diff --git a/components/ram.c b/components/ram.c
index d90b107..9a69db8 100644
--- a/components/ram.c
+++ b/components/ram.c
@@ -27,6 +27,7 @@
        ram_perc(const char *unused)
        {
                uintmax_t total, free, buffers, cached;
+               int percent;
 
                if (pscanf("/proc/meminfo",
                           "MemTotal: %ju kB\n"
@@ -42,8 +43,8 @@
                        return NULL;
                }
 
-               return bprintf("%d", 100 * ((total - free) - (buffers + cached))
-                               / total);
+               percent = 100 * ((total - free) - (buffers + cached)) / total;
+               return bprintf("%d", percent);
        }
 
        const char *
@@ -62,7 +63,7 @@
        const char *
        ram_used(const char *unused)
        {
-               uintmax_t total, free, buffers, cached;
+               uintmax_t total, free, buffers, cached, used;
 
                if (pscanf("/proc/meminfo",
                           "MemTotal: %ju kB\n"
@@ -70,12 +71,11 @@
                           "MemAvailable: %ju kB\n"
                           "Buffers: %ju kB\n"
                           "Cached: %ju kB\n",
-                          &total, &free, &buffers, &buffers, &cached) != 5) {
+                          &total, &free, &buffers, &buffers, &cached) != 5)
                        return NULL;
-               }
 
-               return fmt_human((total - free - buffers - cached) * 1024,
-                                1024);
+               used = (total - free - buffers - cached);
+               return fmt_human(used * 1024, 1024);
        }
 #elif defined(__OpenBSD__)
        #include <stdlib.h>