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/*
htop - MemorySwapMeter.c
(C) 2021 htop dev team
Released under the GNU GPLv2+, see the COPYING file
in the source distribution for its full text.
*/
#include "config.h" // IWYU pragma: keep
#include "MemorySwapMeter.h"
#include <assert.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdlib.h>
#include "Macros.h"
#include "MemoryMeter.h"
#include "Object.h"
#include "SwapMeter.h"
#include "XUtils.h"
typedef struct MemorySwapMeterData_ {
Meter* memoryMeter;
Meter* swapMeter;
} MemorySwapMeterData;
static void MemorySwapMeter_updateValues(Meter* this) {
MemorySwapMeterData* data = this->meterData;
Meter_updateValues(data->memoryMeter);
Meter_updateValues(data->swapMeter);
}
static void MemorySwapMeter_draw(Meter* this, int x, int y, int w) {
MemorySwapMeterData* data = this->meterData;
/* Use the same width for each sub meter to align with CPU meter */
const int colwidth = w / 2;
const int diff = w - colwidth * 2;
assert(data->memoryMeter->draw);
data->memoryMeter->draw(data->memoryMeter, x, y, colwidth);
assert(data->swapMeter->draw);
data->swapMeter->draw(data->swapMeter, x + colwidth + diff, y, colwidth);
}
static void MemorySwapMeter_init(Meter* this) {
MemorySwapMeterData* data = this->meterData;
if (!data) {
data = this->meterData = xMalloc(sizeof(MemorySwapMeterData));
data->memoryMeter = NULL;
data->swapMeter = NULL;
}
if (!data->memoryMeter)
data->memoryMeter = Meter_new(this->host, 0, (const MeterClass*) Class(MemoryMeter));
if (!data->swapMeter)
data->swapMeter = Meter_new(this->host, 0, (const MeterClass*) Class(SwapMeter));
if (Meter_initFn(data->memoryMeter))
Meter_init(data->memoryMeter);
if (Meter_initFn(data->swapMeter))
Meter_init(data->swapMeter);
if (this->mode == 0)
this->mode = BAR_METERMODE;
this->h = MAXIMUM(Meter_modes[data->memoryMeter->mode]->h, Meter_modes[data->swapMeter->mode]->h);
}
static void MemorySwapMeter_updateMode(Meter* this, int mode) {
MemorySwapMeterData* data = this->meterData;
this->mode = mode;
Meter_setMode(data->memoryMeter, mode);
Meter_setMode(data->swapMeter, mode);
this->h = MAXIMUM(Meter_modes[data->memoryMeter->mode]->h, Meter_modes[data->swapMeter->mode]->h);
}
static void MemorySwapMeter_done(Meter* this) {
MemorySwapMeterData* data = this->meterData;
Meter_delete((Object*)data->swapMeter);
Meter_delete((Object*)data->memoryMeter);
free(data);
}
const MeterClass MemorySwapMeter_class = {
.super = {
.extends = Class(Meter),
.delete = Meter_delete,
},
.updateValues = MemorySwapMeter_updateValues,
.defaultMode = CUSTOM_METERMODE,
.isMultiColumn = true,
.name = "MemorySwap",
.uiName = "Memory & Swap",
.description = "Combined memory and swap usage",
.caption = "M&S",
.draw = MemorySwapMeter_draw,
.init = MemorySwapMeter_init,
.updateMode = MemorySwapMeter_updateMode,
.done = MemorySwapMeter_done
};
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