Add ram button

1 files changed, 31 insertions, 0 deletions

diff --git a/src/comet.c b/src/comet.c
index 2bf642a..556ba75 100644
--- a/src/comet.c
+++ b/src/comet.c
@@ -56,6 +56,29 @@ static gboolean disk_update(gpointer data)
     return G_SOURCE_CONTINUE;
 }
 
+static gboolean ram_update(gpointer data)
+{
+    Button *btn = data;
+
+    FILE *meminfo = fopen("/proc/meminfo", "rb");
+
+    uintmax_t total, unused, buffers, cached;
+    g_assert(5 == fscanf(meminfo,
+		                 "MemTotal: %ju kB\n"
+		                 "MemFree: %ju kB\n"
+		                 "MemAvailable: %ju kB\n"
+		                 "Buffers: %ju kB\n"
+		                 "Cached: %ju kB\n",
+		                 &total, &unused, &buffers, &buffers, &cached));
+
+    g_free(btn->text);
+    btn->text = g_strdup_printf("  %d%%", (int)(100 * (total - unused - buffers - cached) / total));
+
+    log_debug("Updated ram percentage");
+    state_redraw(btn->action_data);
+    return G_SOURCE_CONTINUE;
+}
+
 static gboolean date_update(gpointer data)
 {
     Button *btn = data;
@@ -141,6 +164,14 @@ int main(int argc, char **argv)
     disk_update(disk_btn);
     g_timeout_add(60 * 1000, disk_update, disk_btn);
 
+    Button *ram_btn = button_create("ram", PANGO_ALIGN_RIGHT);
+    button_set_colors(ram_btn, background, foreground, stroke);
+    button_set_action(ram_btn, show_action, state);
+    state_add_button(state, ram_btn);
+
+    ram_update(ram_btn);
+    g_timeout_add(60 * 1000, ram_update, ram_btn);
+
     struct {
         State *state;
         timer_t timer;