htop/MemoryMeter.c

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/*
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htop - MemoryMeter.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 "MemoryMeter.h"
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#include "CRT.h"
#include "Platform.h"
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#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <sys/param.h>
#include <assert.h>
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static const int MemoryMeter_attributes[] = {
MEMORY_USED,
MEMORY_BUFFERS,
MEMORY_CACHE
};
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static void MemoryMeter_updateValues(Meter* this, char* buffer, int size) {
int written;
Platform_setMemoryValues(this);
written = Meter_humanUnit(buffer, this->values[0], size);
buffer += written;
if ((size -= written) > 0) {
*buffer++ = '/';
size--;
Meter_humanUnit(buffer, this->total, size);
}
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}
static void MemoryMeter_display(Object* cast, RichString* out) {
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char buffer[50];
Meter* this = (Meter*)cast;
RichString_write(out, CRT_colors[METER_TEXT], ":");
Meter_humanUnit(buffer, this->total, 50);
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RichString_append(out, CRT_colors[METER_VALUE], buffer);
Meter_humanUnit(buffer, this->values[0], 50);
RichString_append(out, CRT_colors[METER_TEXT], " used:");
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RichString_append(out, CRT_colors[MEMORY_USED], buffer);
Meter_humanUnit(buffer, this->values[1], 50);
RichString_append(out, CRT_colors[METER_TEXT], " buffers:");
RichString_append(out, CRT_colors[MEMORY_BUFFERS_TEXT], buffer);
Meter_humanUnit(buffer, this->values[2], 50);
RichString_append(out, CRT_colors[METER_TEXT], " cache:");
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RichString_append(out, CRT_colors[MEMORY_CACHE], buffer);
}
MeterClass MemoryMeter_class = {
.super = {
.extends = Class(Meter),
.delete = Meter_delete,
.display = MemoryMeter_display,
},
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.updateValues = MemoryMeter_updateValues,
.defaultMode = BAR_METERMODE,
.maxItems = 3,
.total = 100.0,
.attributes = MemoryMeter_attributes,
.name = "Memory",
.uiName = "Memory",
.caption = "Mem"
};