1 files changed, 82 insertions, 0 deletions
diff --git a/SwapMeter.c b/SwapMeter.c
new file mode 100644
index 0000000..1055a6e
--- /dev/null
+++ b/SwapMeter.c
@@ -0,0 +1,82 @@
+/*
+htop - SwapMeter.c
+(C) 2004-2011 Hisham H. Muhammad
+Released under the GNU GPLv2+, see the COPYING file
+in the source distribution for its full text.
+*/
+
+#include "config.h" // IWYU pragma: keep
+
+#include "SwapMeter.h"
+
+#include <math.h>
+#include <stddef.h>
+
+#include "CRT.h"
+#include "Macros.h"
+#include "Object.h"
+#include "Platform.h"
+#include "RichString.h"
+
+
+static const int SwapMeter_attributes[] = {
+   SWAP,
+   SWAP_CACHE,
+   SWAP_FRONTSWAP,
+};
+
+static void SwapMeter_updateValues(Meter* this) {
+   char* buffer = this->txtBuffer;
+   size_t size = sizeof(this->txtBuffer);
+   int written;
+
+   this->values[SWAP_METER_CACHE] = NAN;   /* 'cached' not present on all platforms */
+   this->values[SWAP_METER_FRONTSWAP] = NAN;   /* 'frontswap' not present on all platforms */
+   Platform_setSwapValues(this);
+
+   written = Meter_humanUnit(buffer, this->values[SWAP_METER_USED], size);
+   METER_BUFFER_CHECK(buffer, size, written);
+
+   METER_BUFFER_APPEND_CHR(buffer, size, '/');
+
+   Meter_humanUnit(buffer, this->total, size);
+}
+
+static void SwapMeter_display(const Object* cast, RichString* out) {
+   char buffer[50];
+   const Meter* this = (const Meter*)cast;
+   RichString_writeAscii(out, CRT_colors[METER_TEXT], ":");
+   Meter_humanUnit(buffer, this->total, sizeof(buffer));
+   RichString_appendAscii(out, CRT_colors[METER_VALUE], buffer);
+   Meter_humanUnit(buffer, this->values[SWAP_METER_USED], sizeof(buffer));
+   RichString_appendAscii(out, CRT_colors[METER_TEXT], " used:");
+   RichString_appendAscii(out, CRT_colors[METER_VALUE], buffer);
+
+   if (isNonnegative(this->values[SWAP_METER_CACHE])) {
+      Meter_humanUnit(buffer, this->values[SWAP_METER_CACHE], sizeof(buffer));
+      RichString_appendAscii(out, CRT_colors[METER_TEXT], " cache:");
+      RichString_appendAscii(out, CRT_colors[SWAP_CACHE], buffer);
+   }
+
+   if (isNonnegative(this->values[SWAP_METER_FRONTSWAP])) {
+      Meter_humanUnit(buffer, this->values[SWAP_METER_FRONTSWAP], sizeof(buffer));
+      RichString_appendAscii(out, CRT_colors[METER_TEXT], " frontswap:");
+      RichString_appendAscii(out, CRT_colors[SWAP_FRONTSWAP], buffer);
+   }
+}
+
+const MeterClass SwapMeter_class = {
+   .super = {
+      .extends = Class(Meter),
+      .delete = Meter_delete,
+      .display = SwapMeter_display,
+   },
+   .updateValues = SwapMeter_updateValues,
+   .defaultMode = BAR_METERMODE,
+   .maxItems = SWAP_METER_ITEMCOUNT,
+   .total = 100.0,
+   .attributes = SwapMeter_attributes,
+   .name = "Swap",
+   .uiName = "Swap",
+   .caption = "Swp"
+};