htop/zfs/ZfsArcMeter.c

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/*
htop - ZfsArcMeter.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 "zfs/ZfsArcMeter.h"
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#include <stddef.h>
#include "CRT.h"
#include "Object.h"
#include "Platform.h"
#include "RichString.h"
#include "zfs/ZfsArcStats.h"
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static const int ZfsArcMeter_attributes[] = {
ZFS_MFU, ZFS_MRU, ZFS_ANON, ZFS_HEADER, ZFS_OTHER
};
void ZfsArcMeter_readStats(Meter* this, const 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
this->curItems = 5;
this->values[5] = stats->size;
}
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static void ZfsArcMeter_updateValues(Meter* this) {
char* buffer = this->txtBuffer;
size_t size = sizeof(this->txtBuffer);
int written;
Platform_setZfsArcValues(this);
written = Meter_humanUnit(buffer, this->values[5], size);
METER_BUFFER_CHECK(buffer, size, written);
METER_BUFFER_APPEND_CHR(buffer, size, '/');
Meter_humanUnit(buffer, this->total, size);
}
static void ZfsArcMeter_display(const Object* cast, RichString* out) {
const Meter* this = (const Meter*)cast;
if (this->values[5] > 0) {
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char buffer[50];
Meter_humanUnit(buffer, this->total, sizeof(buffer));
RichString_appendAscii(out, CRT_colors[METER_VALUE], buffer);
Meter_humanUnit(buffer, this->values[5], sizeof(buffer));
RichString_appendAscii(out, CRT_colors[METER_TEXT], " Used:");
RichString_appendAscii(out, CRT_colors[METER_VALUE], buffer);
Meter_humanUnit(buffer, this->values[0], sizeof(buffer));
RichString_appendAscii(out, CRT_colors[METER_TEXT], " MFU:");
RichString_appendAscii(out, CRT_colors[ZFS_MFU], buffer);
Meter_humanUnit(buffer, this->values[1], sizeof(buffer));
RichString_appendAscii(out, CRT_colors[METER_TEXT], " MRU:");
RichString_appendAscii(out, CRT_colors[ZFS_MRU], buffer);
Meter_humanUnit(buffer, this->values[2], sizeof(buffer));
RichString_appendAscii(out, CRT_colors[METER_TEXT], " Anon:");
RichString_appendAscii(out, CRT_colors[ZFS_ANON], buffer);
Meter_humanUnit(buffer, this->values[3], sizeof(buffer));
RichString_appendAscii(out, CRT_colors[METER_TEXT], " Hdr:");
RichString_appendAscii(out, CRT_colors[ZFS_HEADER], buffer);
Meter_humanUnit(buffer, this->values[4], sizeof(buffer));
RichString_appendAscii(out, CRT_colors[METER_TEXT], " Oth:");
RichString_appendAscii(out, CRT_colors[ZFS_OTHER], buffer);
} else {
RichString_writeAscii(out, CRT_colors[METER_TEXT], " ");
RichString_appendAscii(out, CRT_colors[FAILED_READ], "Unavailable");
}
}
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const MeterClass ZfsArcMeter_class = {
.super = {
.extends = Class(Meter),
.delete = Meter_delete,
.display = ZfsArcMeter_display,
},
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.updateValues = ZfsArcMeter_updateValues,
.defaultMode = TEXT_METERMODE,
.maxItems = 6,
.total = 100.0,
.attributes = ZfsArcMeter_attributes,
.name = "ZFSARC",
.uiName = "ZFS ARC",
.caption = "ARC: "
};