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-rw-r--r--zfs/ZfsArcMeter.c104
1 files changed, 104 insertions, 0 deletions
diff --git a/zfs/ZfsArcMeter.c b/zfs/ZfsArcMeter.c
new file mode 100644
index 00000000..9f7028bc
--- /dev/null
+++ b/zfs/ZfsArcMeter.c
@@ -0,0 +1,104 @@
+/*
+htop - ZfsArcMeter.c
+(C) 2004-2011 Hisham H. Muhammad
+Released under the GNU GPL, see the COPYING file
+in the source distribution for its full text.
+*/
+
+#include "ZfsArcMeter.h"
+#include "ZfsArcStats.h"
+
+#include "CRT.h"
+#include "Platform.h"
+
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+#include <sys/param.h>
+#include <assert.h>
+
+/*{
+#include "ZfsArcStats.h"
+
+#include "Meter.h"
+}*/
+
+int ZfsArcMeter_attributes[] = {
+ ZFS_MFU, ZFS_MRU, ZFS_ANON, ZFS_HEADER, ZFS_OTHER
+};
+
+void ZfsArcMeter_readStats(Meter* this, ZfsArcStats* stats) {
+ this->total = stats->max;
+ this->values[0] = stats->MFU;
+ this->values[1] = stats->MRU;
+ this->values[2] = stats->anon;
+ this->values[3] = stats->header;
+ this->values[4] = stats->other;
+
+ // "Hide" the last value so it can
+ // only be accessed by index and is not
+ // displayed by the Bar or Graph style
+ Meter_setItems(this, 5);
+ this->values[5] = stats->size;
+}
+
+static void ZfsArcMeter_updateValues(Meter* this, char* buffer, int size) {
+ int written;
+ Platform_setZfsArcValues(this);
+
+ written = Meter_humanUnit(buffer, this->values[5], size);
+ buffer += written;
+ if ((size -= written) > 0) {
+ *buffer++ = '/';
+ size--;
+ Meter_humanUnit(buffer, this->total, size);
+ }
+}
+
+static void ZfsArcMeter_display(Object* cast, RichString* out) {
+ char buffer[50];
+ Meter* this = (Meter*)cast;
+
+ if (this->values[5] > 0) {
+ RichString_write(out, CRT_colors[METER_TEXT], ":");
+ Meter_humanUnit(buffer, this->total, 50);
+ RichString_append(out, CRT_colors[METER_VALUE], buffer);
+ Meter_humanUnit(buffer, this->values[5], 50);
+ RichString_append(out, CRT_colors[METER_TEXT], " Used:");
+ RichString_append(out, CRT_colors[METER_VALUE], buffer);
+ Meter_humanUnit(buffer, this->values[0], 50);
+ RichString_append(out, CRT_colors[METER_TEXT], " MFU:");
+ RichString_append(out, CRT_colors[ZFS_MFU], buffer);
+ Meter_humanUnit(buffer, this->values[1], 50);
+ RichString_append(out, CRT_colors[METER_TEXT], " MRU:");
+ RichString_append(out, CRT_colors[ZFS_MRU], buffer);
+ Meter_humanUnit(buffer, this->values[2], 50);
+ RichString_append(out, CRT_colors[METER_TEXT], " Anon:");
+ RichString_append(out, CRT_colors[ZFS_ANON], buffer);
+ Meter_humanUnit(buffer, this->values[3], 50);
+ RichString_append(out, CRT_colors[METER_TEXT], " Hdr:");
+ RichString_append(out, CRT_colors[ZFS_HEADER], buffer);
+ Meter_humanUnit(buffer, this->values[4], 50);
+ RichString_append(out, CRT_colors[METER_TEXT], " Oth:");
+ RichString_append(out, CRT_colors[ZFS_OTHER], buffer);
+ } else {
+ RichString_write(out, CRT_colors[METER_TEXT], " ");
+ RichString_append(out, CRT_colors[FAILED_SEARCH], "Unavailable");
+ }
+}
+
+MeterClass ZfsArcMeter_class = {
+ .super = {
+ .extends = Class(Meter),
+ .delete = Meter_delete,
+ .display = ZfsArcMeter_display,
+ },
+ .updateValues = ZfsArcMeter_updateValues,
+ .defaultMode = TEXT_METERMODE,
+ .maxItems = 6,
+ .total = 100.0,
+ .attributes = ZfsArcMeter_attributes,
+ .name = "ZFSARC",
+ .uiName = "ZFS ARC",
+ .caption = "ARC"
+};

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