Zram Meter feature

1 files changed, 75 insertions, 0 deletions

diff --git a/linux/ZramMeter.c b/linux/ZramMeter.c
new file mode 100644
index 00000000..f855488e
--- /dev/null
+++ b/linux/ZramMeter.c
@@ -0,0 +1,75 @@
+#include "ZramMeter.h"
+
+#include "CRT.h"
+#include "Meter.h"
+#include "Platform.h"
+
+static const int ZramMeter_attributes[] = {
+   ZRAM
+};
+
+static void ZramMeter_updateValues(Meter* this, char* buffer, int size) {
+   int written;
+
+   Platform_setZramValues(this);
+
+   /* on print bar for compressed data size, not uncompressed */
+   this->curItems = 1;
+
+   written = Meter_humanUnit(buffer, this->values[0], size);
+   buffer += written;
+   size -= written;
+   if(size <= 0) {
+      return;
+   }
+   *buffer++ = '(';
+   size--;
+   if(size <= 0) {
+      return;
+   }
+   written = Meter_humanUnit(buffer, this->values[1], size);
+   buffer += written;
+   size -= written;
+   if(size <= 0) {
+      return;
+   }
+   *buffer++ = ')';
+   size--;
+   if ((size -= written) > 0) {
+      *buffer++ = '/';
+      size--;
+      Meter_humanUnit(buffer, this->total, size);
+   }
+}
+
+static void ZramMeter_display(const Object* cast, RichString* out) {
+   char buffer[50];
+   const Meter* this = (const Meter*)cast;
+   RichString_write(out, CRT_colors[METER_TEXT], ":");
+   Meter_humanUnit(buffer, this->total, sizeof(buffer));
+
+   RichString_append(out, CRT_colors[METER_VALUE], buffer);
+   Meter_humanUnit(buffer, this->values[0], sizeof(buffer));
+   RichString_append(out, CRT_colors[METER_TEXT], " used:");
+   RichString_append(out, CRT_colors[METER_VALUE], buffer);
+
+   Meter_humanUnit(buffer, this->values[1], sizeof(buffer));
+   RichString_append(out, CRT_colors[METER_TEXT], " uncompressed:");
+   RichString_append(out, CRT_colors[METER_VALUE], buffer);
+}
+
+const MeterClass ZramMeter_class = {
+   .super = {
+      .extends = Class(Meter),
+      .delete = Meter_delete,
+      .display = ZramMeter_display,
+   },
+   .updateValues = ZramMeter_updateValues,
+   .defaultMode = BAR_METERMODE,
+   .maxItems = 2,
+   .total = 100.0,
+   .attributes = ZramMeter_attributes,
+   .name = "Zram",
+   .uiName = "Zram",
+   .caption = "zrm"
+};