ram: OS split

[slstatus.git] / components / Linux / ram.c

diff --git a/components/Linux/ram.c b/components/Linux/ram.c
new file mode 100644 (file)
index 0000000..7df5f85
--- /dev/null
+++ b/components/Linux/ram.c
@@ -0,0 +1,52 @@
+/* See LICENSE file for copyright and license details. */
+#include <stdio.h>
+
+#include "../../util.h"
+
+const char *
+ram_free(void)
+{
+       long free;
+
+       return (pscanf("/proc/meminfo", "MemFree: %ld kB\n", &free) == 1) ?
+              bprintf("%f", (float)free / 1024 / 1024) : NULL;
+}
+
+const char *
+ram_perc(void)
+{
+       long total, free, buffers, cached;
+
+       return (pscanf("/proc/meminfo",
+                      "MemTotal: %ld kB\n"
+                      "MemFree: %ld kB\n"
+                      "MemAvailable: %ld kB\nBuffers: %ld kB\n"
+                      "Cached: %ld kB\n",
+                      &total, &free, &buffers, &buffers, &cached) == 5) ?
+              bprintf("%d", 100 * ((total - free) - (buffers + cached)) / total) :
+              NULL;
+}
+
+const char *
+ram_total(void)
+{
+       long total;
+
+       return (pscanf("/proc/meminfo", "MemTotal: %ld kB\n", &total) == 1) ?
+              bprintf("%f", (float)total / 1024 / 1024) : NULL;
+}
+
+const char *
+ram_used(void)
+{
+       long total, free, buffers, cached;
+
+       return (pscanf("/proc/meminfo",
+                      "MemTotal: %ld kB\n"
+                      "MemFree: %ld kB\n"
+                      "MemAvailable: %ld kB\nBuffers: %ld kB\n"
+                      "Cached: %ld kB\n",
+                      &total, &free, &buffers, &buffers, &cached) == 5) ?
+              bprintf("%f", (float)(total - free - buffers - cached) / 1024 / 1024) :
+              NULL;
+}