htop/SwapMeter.c

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/*
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htop - SwapMeter.c
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(C) 2004-2011 Hisham H. Muhammad
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Released under the GNU GPL, see the COPYING file
in the source distribution for its full text.
*/
#include "SwapMeter.h"
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#include "CRT.h"
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#include "ProcessList.h"
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <sys/param.h>
#include <assert.h>
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/*{
#include "Meter.h"
}*/
#define KILOBYTE 1
#define MEGABYTE 1024
#define GIGABYTE 1048576
int SwapMeter_attributes[] = {
SWAP
};
/* NOTE: Value is in kilobytes */
static void SwapMeter_humanNumber(char* buffer, const long int* value) {
if (*value >= 10*GIGABYTE)
sprintf(buffer, "%ldG ", *value / GIGABYTE);
else if (*value >= 10*MEGABYTE)
sprintf(buffer, "%ldM ", *value / MEGABYTE);
else
sprintf(buffer, "%ldK ", *value);
}
static void SwapMeter_setValues(Meter* this, char* buffer, int len) {
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long int usedSwap = this->pl->usedSwap;
this->total = this->pl->totalSwap;
this->values[0] = usedSwap;
snprintf(buffer, len, "%ld/%ldMB", (long int) usedSwap / MEGABYTE, (long int) this->total / MEGABYTE);
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}
static void SwapMeter_display(Object* cast, RichString* out) {
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char buffer[50];
Meter* this = (Meter*)cast;
long int swap = (long int) this->values[0];
long int total = (long int) this->total;
RichString_write(out, CRT_colors[METER_TEXT], ":");
SwapMeter_humanNumber(buffer, &total);
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RichString_append(out, CRT_colors[METER_VALUE], buffer);
SwapMeter_humanNumber(buffer, &swap);
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RichString_append(out, CRT_colors[METER_TEXT], "used:");
RichString_append(out, CRT_colors[METER_VALUE], buffer);
}
MeterClass SwapMeter_class = {
.super = {
.extends = Class(Meter),
.delete = Meter_delete,
.display = SwapMeter_display,
},
.setValues = SwapMeter_setValues,
.defaultMode = BAR_METERMODE,
.total = 100.0,
.attributes = SwapMeter_attributes,
.name = "Swap",
.uiName = "Swap",
.caption = "Swp"
};