mirror of https://github.com/xzeldon/htop.git
107 lines
3.1 KiB
C
107 lines
3.1 KiB
C
/*
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htop - HugePageMeter.c
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(C) 2021 htop dev team
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Released under the GNU GPLv2, see the COPYING file
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in the source distribution for its full text.
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*/
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#include "linux/HugePageMeter.h"
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#include <assert.h>
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#include <math.h>
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#include <stddef.h>
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#include "CRT.h"
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#include "Macros.h"
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#include "Object.h"
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#include "ProcessList.h"
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#include "RichString.h"
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#include "linux/LinuxProcessList.h"
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static const char* HugePageMeter_active_labels[4] = { NULL, NULL, NULL, NULL };
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static const int HugePageMeter_attributes[] = {
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HUGEPAGE_1,
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HUGEPAGE_2,
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HUGEPAGE_3,
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HUGEPAGE_4,
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};
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static const char* const HugePageMeter_labels[] = {
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" 64K:", " 128K:", " 256K:", " 512K:",
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" 1M:", " 2M:", " 4M:", " 8M:", " 16M:", " 32M:", " 64M:", " 128M:", " 256M:", " 512M:",
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" 1G:", " 2G:", " 4G:", " 8G:", " 16G:", " 32G:", " 64G:", " 128G:", " 256G:", " 512G:",
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};
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static void HugePageMeter_updateValues(Meter* this) {
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assert(ARRAYSIZE(HugePageMeter_labels) == HTOP_HUGEPAGE_COUNT);
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char* buffer = this->txtBuffer;
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size_t size = sizeof(this->txtBuffer);
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int written;
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memory_t usedTotal = 0;
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unsigned nextUsed = 0;
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const LinuxProcessList* lpl = (const LinuxProcessList*) this->pl;
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this->total = lpl->totalHugePageMem;
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this->values[0] = 0;
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HugePageMeter_active_labels[0] = " used:";
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for (unsigned i = 1; i < ARRAYSIZE(HugePageMeter_active_labels); i++) {
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this->values[i] = NAN;
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HugePageMeter_active_labels[i] = NULL;
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}
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for (unsigned i = 0; i < HTOP_HUGEPAGE_COUNT; i++) {
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memory_t value = lpl->usedHugePageMem[i];
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if (value != MEMORY_MAX) {
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this->values[nextUsed] = value;
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usedTotal += value;
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HugePageMeter_active_labels[nextUsed] = HugePageMeter_labels[i];
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if (++nextUsed == ARRAYSIZE(HugePageMeter_active_labels)) {
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break;
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}
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}
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}
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written = Meter_humanUnit(buffer, usedTotal, size);
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METER_BUFFER_CHECK(buffer, size, written);
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METER_BUFFER_APPEND_CHR(buffer, size, '/');
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Meter_humanUnit(buffer, this->total, size);
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}
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static void HugePageMeter_display(const Object* cast, RichString* out) {
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char buffer[50];
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const Meter* this = (const Meter*)cast;
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RichString_writeAscii(out, CRT_colors[METER_TEXT], ":");
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Meter_humanUnit(buffer, this->total, sizeof(buffer));
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RichString_appendAscii(out, CRT_colors[METER_VALUE], buffer);
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for (unsigned i = 0; i < ARRAYSIZE(HugePageMeter_active_labels); i++) {
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if (isnan(this->values[i])) {
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break;
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}
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RichString_appendAscii(out, CRT_colors[METER_TEXT], HugePageMeter_active_labels[i]);
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Meter_humanUnit(buffer, this->values[i], sizeof(buffer));
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RichString_appendAscii(out, CRT_colors[HUGEPAGE_1 + i], buffer);
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}
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}
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const MeterClass HugePageMeter_class = {
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.super = {
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.extends = Class(Meter),
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.delete = Meter_delete,
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.display = HugePageMeter_display,
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},
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.updateValues = HugePageMeter_updateValues,
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.defaultMode = BAR_METERMODE,
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.maxItems = ARRAYSIZE(HugePageMeter_active_labels),
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.total = 100.0,
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.attributes = HugePageMeter_attributes,
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.name = "HugePages",
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.uiName = "HugePages",
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.caption = "HP"
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};
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