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/*
htop - ZfsCompressedArcMeter.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 "ZfsCompressedArcMeter.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 ZfsCompressedArcMeter_attributes[] = {
ZFS_COMPRESSED
};
void ZfsCompressedArcMeter_readStats(Meter* this, ZfsArcStats* stats) {
if ( stats->isCompressed ) {
this->total = stats->uncompressed;
this->values[0] = stats->compressed;
} else {
// For uncompressed ARC, report 1:1 ratio
this->total = stats->size;
this->values[0] = stats->size;
}
}
static void ZfsCompressedArcMeter_printRatioString(Meter* this, char* buffer, int size) {
xSnprintf(buffer, size, "%.2f:1", this->total/this->values[0]);
}
static void ZfsCompressedArcMeter_updateValues(Meter* this, char* buffer, int size) {
Platform_setZfsCompressedArcValues(this);
ZfsCompressedArcMeter_printRatioString(this, buffer, size);
}
static void ZfsCompressedArcMeter_display(Object* cast, RichString* out) {
char buffer[50];
Meter* this = (Meter*)cast;
if (this->values[0] > 0) {
Meter_humanUnit(buffer, this->total, 50);
RichString_append(out, CRT_colors[METER_VALUE], buffer);
RichString_append(out, CRT_colors[METER_TEXT], " Uncompressed, ");
Meter_humanUnit(buffer, this->values[0], 50);
RichString_append(out, CRT_colors[METER_VALUE], buffer);
RichString_append(out, CRT_colors[METER_TEXT], " Compressed, ");
ZfsCompressedArcMeter_printRatioString(this, buffer, 50);
RichString_append(out, CRT_colors[METER_VALUE], buffer);
RichString_append(out, CRT_colors[METER_TEXT], " Ratio");
} else {
RichString_write(out, CRT_colors[METER_TEXT], " ");
RichString_append(out, CRT_colors[FAILED_SEARCH], "Compression Unavailable");
}
}
MeterClass ZfsCompressedArcMeter_class = {
.super = {
.extends = Class(Meter),
.delete = Meter_delete,
.display = ZfsCompressedArcMeter_display,
},
.updateValues = ZfsCompressedArcMeter_updateValues,
.defaultMode = TEXT_METERMODE,
.maxItems = 1,
.total = 100.0,
.attributes = ZfsCompressedArcMeter_attributes,
.name = "ZFSCARC",
.uiName = "ZFS CARC",
.description = "ZFS CARC: Compressed ARC statistics",
.caption = "ARC: "
};
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