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/*
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"
};
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