From 7246dc4381c6c95454672a5c1aff65a02d6d3747 Mon Sep 17 00:00:00 2001 From: Laslo Hunhold Date: Sun, 24 Sep 2017 15:33:01 +0200 Subject: Move components into dedicated subdirectory This brings us a lot more tidiness. --- components/ram.c | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 components/ram.c (limited to 'components/ram.c') diff --git a/components/ram.c b/components/ram.c new file mode 100644 index 0000000..f696039 --- /dev/null +++ b/components/ram.c @@ -0,0 +1,52 @@ +/* See LICENSE file for copyright and license details. */ +#include + +#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; +} -- cgit v1.2.3