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88 lines
2.7 KiB
C
88 lines
2.7 KiB
C
/*
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htop - ZfsCompressedArcMeter.c
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(C) 2004-2011 Hisham H. Muhammad
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Released under the GNU GPLv2+, see the COPYING file
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in the source distribution for its full text.
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*/
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#include "zfs/ZfsCompressedArcMeter.h"
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#include <stddef.h>
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#include "CRT.h"
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#include "Meter.h"
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#include "Object.h"
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#include "Platform.h"
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#include "RichString.h"
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#include "XUtils.h"
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#include "zfs/ZfsArcStats.h"
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static const int ZfsCompressedArcMeter_attributes[] = {
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ZFS_COMPRESSED
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};
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void ZfsCompressedArcMeter_readStats(Meter* this, const ZfsArcStats* stats) {
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if ( stats->isCompressed ) {
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this->total = stats->uncompressed;
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this->values[0] = stats->compressed;
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} else {
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// For uncompressed ARC, report 1:1 ratio
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this->total = stats->size;
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this->values[0] = stats->size;
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}
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}
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static int ZfsCompressedArcMeter_printRatioString(const Meter* this, char* buffer, size_t size) {
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if (this->values[0] > 0) {
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return xSnprintf(buffer, size, "%.2f:1", this->total / this->values[0]);
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}
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return xSnprintf(buffer, size, "N/A");
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}
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static void ZfsCompressedArcMeter_updateValues(Meter* this) {
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Platform_setZfsCompressedArcValues(this);
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ZfsCompressedArcMeter_printRatioString(this, this->txtBuffer, sizeof(this->txtBuffer));
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}
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static void ZfsCompressedArcMeter_display(const Object* cast, RichString* out) {
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const Meter* this = (const Meter*)cast;
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if (this->values[0] > 0) {
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char buffer[50];
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int len;
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Meter_humanUnit(buffer, this->total, sizeof(buffer));
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RichString_appendAscii(out, CRT_colors[METER_VALUE], buffer);
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RichString_appendAscii(out, CRT_colors[METER_TEXT], " Uncompressed, ");
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Meter_humanUnit(buffer, this->values[0], sizeof(buffer));
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RichString_appendAscii(out, CRT_colors[METER_VALUE], buffer);
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RichString_appendAscii(out, CRT_colors[METER_TEXT], " Compressed, ");
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len = ZfsCompressedArcMeter_printRatioString(this, buffer, sizeof(buffer));
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RichString_appendnAscii(out, CRT_colors[ZFS_RATIO], buffer, len);
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RichString_appendAscii(out, CRT_colors[METER_TEXT], " Ratio");
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} else {
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RichString_writeAscii(out, CRT_colors[METER_TEXT], " ");
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RichString_appendAscii(out, CRT_colors[FAILED_READ], "Compression Unavailable");
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}
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}
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const MeterClass ZfsCompressedArcMeter_class = {
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.super = {
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.extends = Class(Meter),
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.delete = Meter_delete,
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.display = ZfsCompressedArcMeter_display,
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},
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.updateValues = ZfsCompressedArcMeter_updateValues,
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.defaultMode = TEXT_METERMODE,
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.maxItems = 1,
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.total = 100.0,
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.attributes = ZfsCompressedArcMeter_attributes,
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.name = "ZFSCARC",
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.uiName = "ZFS CARC",
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.description = "ZFS CARC: Compressed ARC statistics",
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.caption = "ARC: "
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};
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