htop/CPUMeter.c

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/*
htop - CPUMeter.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 "CPUMeter.h"
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#include "CRT.h"
#include "Settings.h"
#include "Platform.h"
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#include <assert.h>
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#include <stdlib.h>
#include <string.h>
#include <math.h>
int CPUMeter_attributes[] = {
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CPU_NICE, CPU_NORMAL, CPU_SYSTEM, CPU_IRQ, CPU_SOFTIRQ, CPU_STEAL, CPU_GUEST, CPU_IOWAIT
};
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static void CPUMeter_init(Meter* this) {
int cpu = this->param;
if (this->pl->cpuCount > 1) {
char caption[10];
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xSnprintf(caption, sizeof(caption), "%3d", Settings_cpuId(this->pl->settings, cpu - 1));
Meter_setCaption(this, caption);
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}
if (this->param == 0)
Meter_setCaption(this, "Avg");
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}
static void CPUMeter_updateValues(Meter* this, char* buffer, int size) {
int cpu = this->param;
if (cpu > this->pl->cpuCount) {
xSnprintf(buffer, size, "absent");
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return;
}
memset(this->values, 0, sizeof(double) * CPU_METER_ITEMCOUNT);
double percent = Platform_setCPUValues(this, cpu);
if (this->pl->settings->showCPUFrequency) {
double cpuFrequency = this->values[CPU_METER_FREQUENCY];
char cpuFrequencyBuffer[16];
if (isnan(cpuFrequency)) {
xSnprintf(cpuFrequencyBuffer, sizeof(cpuFrequencyBuffer), "N/A");
} else {
xSnprintf(cpuFrequencyBuffer, sizeof(cpuFrequencyBuffer), "%4uMHz", (unsigned)cpuFrequency);
}
if (this->pl->settings->showCPUUsage) {
xSnprintf(buffer, size, "%5.1f%% %s", percent, cpuFrequencyBuffer);
} else {
xSnprintf(buffer, size, "%s", cpuFrequencyBuffer);
}
} else if (this->pl->settings->showCPUUsage) {
xSnprintf(buffer, size, "%5.1f%%", percent);
} else if (size > 0) {
buffer[0] = '\0';
}
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}
static void CPUMeter_display(Object* cast, RichString* out) {
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char buffer[50];
Meter* this = (Meter*)cast;
RichString_prune(out);
if (this->param > this->pl->cpuCount) {
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RichString_append(out, CRT_colors[METER_TEXT], "absent");
return;
}
xSnprintf(buffer, sizeof(buffer), "%5.1f%% ", this->values[CPU_METER_NORMAL]);
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RichString_append(out, CRT_colors[METER_TEXT], ":");
RichString_append(out, CRT_colors[CPU_NORMAL], buffer);
if (this->pl->settings->detailedCPUTime) {
xSnprintf(buffer, sizeof(buffer), "%5.1f%% ", this->values[CPU_METER_KERNEL]);
RichString_append(out, CRT_colors[METER_TEXT], "sy:");
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RichString_append(out, CRT_colors[CPU_SYSTEM], buffer);
xSnprintf(buffer, sizeof(buffer), "%5.1f%% ", this->values[CPU_METER_NICE]);
RichString_append(out, CRT_colors[METER_TEXT], "ni:");
RichString_append(out, CRT_colors[CPU_NICE_TEXT], buffer);
xSnprintf(buffer, sizeof(buffer), "%5.1f%% ", this->values[CPU_METER_IRQ]);
RichString_append(out, CRT_colors[METER_TEXT], "hi:");
RichString_append(out, CRT_colors[CPU_IRQ], buffer);
xSnprintf(buffer, sizeof(buffer), "%5.1f%% ", this->values[CPU_METER_SOFTIRQ]);
RichString_append(out, CRT_colors[METER_TEXT], "si:");
RichString_append(out, CRT_colors[CPU_SOFTIRQ], buffer);
if (!isnan(this->values[CPU_METER_STEAL])) {
xSnprintf(buffer, sizeof(buffer), "%5.1f%% ", this->values[CPU_METER_STEAL]);
RichString_append(out, CRT_colors[METER_TEXT], "st:");
RichString_append(out, CRT_colors[CPU_STEAL], buffer);
}
if (!isnan(this->values[CPU_METER_GUEST])) {
xSnprintf(buffer, sizeof(buffer), "%5.1f%% ", this->values[CPU_METER_GUEST]);
RichString_append(out, CRT_colors[METER_TEXT], "gu:");
RichString_append(out, CRT_colors[CPU_GUEST], buffer);
}
xSnprintf(buffer, sizeof(buffer), "%5.1f%% ", this->values[CPU_METER_IOWAIT]);
RichString_append(out, CRT_colors[METER_TEXT], "wa:");
RichString_append(out, CRT_colors[CPU_IOWAIT], buffer);
} else {
xSnprintf(buffer, sizeof(buffer), "%5.1f%% ", this->values[CPU_METER_KERNEL]);
RichString_append(out, CRT_colors[METER_TEXT], "sys:");
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RichString_append(out, CRT_colors[CPU_SYSTEM], buffer);
xSnprintf(buffer, sizeof(buffer), "%5.1f%% ", this->values[CPU_METER_NICE]);
RichString_append(out, CRT_colors[METER_TEXT], "low:");
RichString_append(out, CRT_colors[CPU_NICE_TEXT], buffer);
if (!isnan(this->values[CPU_METER_IRQ])) {
xSnprintf(buffer, sizeof(buffer), "%5.1f%% ", this->values[CPU_METER_IRQ]);
RichString_append(out, CRT_colors[METER_TEXT], "vir:");
RichString_append(out, CRT_colors[CPU_GUEST], buffer);
}
}
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}
static void AllCPUsMeter_getRange(Meter* this, int* start, int* count) {
int cpus = this->pl->cpuCount;
switch(Meter_name(this)[0]) {
default:
case 'A': // All
*start = 0;
*count = cpus;
break;
case 'L': // First Half
*start = 0;
*count = (cpus+1) / 2;
break;
case 'R': // Second Half
*start = (cpus+1) / 2;
*count = cpus / 2;
break;
}
}
static void CPUMeterCommonInit(Meter *this, int ncol) {
int cpus = this->pl->cpuCount;
if (!this->drawData)
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this->drawData = xCalloc(cpus, sizeof(Meter*));
Meter** meters = (Meter**) this->drawData;
int start, count;
AllCPUsMeter_getRange(this, &start, &count);
for (int i = 0; i < count; i++) {
if (!meters[i])
meters[i] = Meter_new(this->pl, start+i+1, (MeterClass*) Class(CPUMeter));
Meter_init(meters[i]);
}
if (this->mode == 0)
this->mode = BAR_METERMODE;
int h = Meter_modes[this->mode]->h;
this->h = h * ((count + ncol - 1)/ ncol);
}
static void CPUMeterCommonUpdateMode(Meter* this, int mode, int ncol) {
Meter** meters = (Meter**) this->drawData;
this->mode = mode;
int h = Meter_modes[mode]->h;
int start, count;
AllCPUsMeter_getRange(this, &start, &count);
for (int i = 0; i < count; i++) {
Meter_setMode(meters[i], mode);
}
this->h = h * ((count + ncol - 1)/ ncol);
}
static void AllCPUsMeter_done(Meter* this) {
Meter** meters = (Meter**) this->drawData;
int start, count;
AllCPUsMeter_getRange(this, &start, &count);
for (int i = 0; i < count; i++)
Meter_delete((Object*)meters[i]);
}
static void SingleColCPUsMeter_init(Meter* this) {
CPUMeterCommonInit(this, 1);
}
static void SingleColCPUsMeter_updateMode(Meter* this, int mode) {
CPUMeterCommonUpdateMode(this, mode, 1);
}
static void DualColCPUsMeter_init(Meter* this) {
CPUMeterCommonInit(this, 2);
}
static void DualColCPUsMeter_updateMode(Meter* this, int mode) {
CPUMeterCommonUpdateMode(this, mode, 2);
}
static void QuadColCPUsMeter_init(Meter* this) {
CPUMeterCommonInit(this, 4);
}
static void QuadColCPUsMeter_updateMode(Meter* this, int mode) {
CPUMeterCommonUpdateMode(this, mode, 4);
}
static void CPUMeterCommonDraw(Meter* this, int x, int y, int w, int ncol) {
Meter** meters = (Meter**) this->drawData;
int start, count;
AllCPUsMeter_getRange(this, &start, &count);
int colwidth = (w-ncol)/ncol + 1;
int diff = (w - (colwidth * ncol));
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int nrows = (count + ncol - 1) / ncol;
for (int i = 0; i < count; i++){
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int d = (i/nrows) > diff ? diff : (i / nrows) ; // dynamic spacer
int xpos = x + ((i / nrows) * colwidth) + d;
int ypos = y + ((i % nrows) * meters[0]->h);
meters[i]->draw(meters[i], xpos, ypos, colwidth);
}
}
static void DualColCPUsMeter_draw(Meter* this, int x, int y, int w) {
CPUMeterCommonDraw(this, x, y, w, 2);
}
static void QuadColCPUsMeter_draw(Meter* this, int x, int y, int w) {
CPUMeterCommonDraw(this, x, y, w, 4);
}
static void SingleColCPUsMeter_draw(Meter* this, int x, int y, int w) {
Meter** meters = (Meter**) this->drawData;
int start, count;
AllCPUsMeter_getRange(this, &start, &count);
for (int i = 0; i < count; i++) {
meters[i]->draw(meters[i], x, y, w);
y += meters[i]->h;
}
}
MeterClass CPUMeter_class = {
.super = {
.extends = Class(Meter),
.delete = Meter_delete,
.display = CPUMeter_display
},
.updateValues = CPUMeter_updateValues,
.defaultMode = BAR_METERMODE,
.maxItems = CPU_METER_ITEMCOUNT,
.total = 100.0,
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.attributes = CPUMeter_attributes,
.name = "CPU",
.uiName = "CPU",
.caption = "CPU",
.init = CPUMeter_init
};
MeterClass AllCPUsMeter_class = {
.super = {
.extends = Class(Meter),
.delete = Meter_delete,
.display = CPUMeter_display
},
.defaultMode = CUSTOM_METERMODE,
.total = 100.0,
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.attributes = CPUMeter_attributes,
.name = "AllCPUs",
.uiName = "CPUs (1/1)",
.description = "CPUs (1/1): all CPUs",
.caption = "CPU",
.draw = SingleColCPUsMeter_draw,
.init = SingleColCPUsMeter_init,
.updateMode = SingleColCPUsMeter_updateMode,
.done = AllCPUsMeter_done
};
MeterClass AllCPUs2Meter_class = {
.super = {
.extends = Class(Meter),
.delete = Meter_delete,
.display = CPUMeter_display
},
.defaultMode = CUSTOM_METERMODE,
.total = 100.0,
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.attributes = CPUMeter_attributes,
.name = "AllCPUs2",
.uiName = "CPUs (1&2/2)",
.description = "CPUs (1&2/2): all CPUs in 2 shorter columns",
.caption = "CPU",
.draw = DualColCPUsMeter_draw,
.init = DualColCPUsMeter_init,
.updateMode = DualColCPUsMeter_updateMode,
.done = AllCPUsMeter_done
};
MeterClass LeftCPUsMeter_class = {
.super = {
.extends = Class(Meter),
.delete = Meter_delete,
.display = CPUMeter_display
},
.defaultMode = CUSTOM_METERMODE,
.total = 100.0,
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.attributes = CPUMeter_attributes,
.name = "LeftCPUs",
.uiName = "CPUs (1/2)",
.description = "CPUs (1/2): first half of list",
.caption = "CPU",
.draw = SingleColCPUsMeter_draw,
.init = SingleColCPUsMeter_init,
.updateMode = SingleColCPUsMeter_updateMode,
.done = AllCPUsMeter_done
};
MeterClass RightCPUsMeter_class = {
.super = {
.extends = Class(Meter),
.delete = Meter_delete,
.display = CPUMeter_display
},
.defaultMode = CUSTOM_METERMODE,
.total = 100.0,
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.attributes = CPUMeter_attributes,
.name = "RightCPUs",
.uiName = "CPUs (2/2)",
.description = "CPUs (2/2): second half of list",
.caption = "CPU",
.draw = SingleColCPUsMeter_draw,
.init = SingleColCPUsMeter_init,
.updateMode = SingleColCPUsMeter_updateMode,
.done = AllCPUsMeter_done
};
MeterClass LeftCPUs2Meter_class = {
.super = {
.extends = Class(Meter),
.delete = Meter_delete,
.display = CPUMeter_display
},
.defaultMode = CUSTOM_METERMODE,
.total = 100.0,
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.attributes = CPUMeter_attributes,
.name = "LeftCPUs2",
.uiName = "CPUs (1&2/4)",
.description = "CPUs (1&2/4): first half in 2 shorter columns",
.caption = "CPU",
.draw = DualColCPUsMeter_draw,
.init = DualColCPUsMeter_init,
.updateMode = DualColCPUsMeter_updateMode,
.done = AllCPUsMeter_done
};
MeterClass RightCPUs2Meter_class = {
.super = {
.extends = Class(Meter),
.delete = Meter_delete,
.display = CPUMeter_display
},
.defaultMode = CUSTOM_METERMODE,
.total = 100.0,
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.attributes = CPUMeter_attributes,
.name = "RightCPUs2",
.uiName = "CPUs (3&4/4)",
.description = "CPUs (3&4/4): second half in 2 shorter columns",
.caption = "CPU",
.draw = DualColCPUsMeter_draw,
.init = DualColCPUsMeter_init,
.updateMode = DualColCPUsMeter_updateMode,
.done = AllCPUsMeter_done
};
MeterClass AllCPUs4Meter_class = {
.super = {
.extends = Class(Meter),
.delete = Meter_delete,
.display = CPUMeter_display
},
.defaultMode = CUSTOM_METERMODE,
.total = 100.0,
.attributes = CPUMeter_attributes,
.name = "AllCPUs4",
.uiName = "CPUs (1&2&3&4/4)",
.description = "CPUs (1&2&3&4/4): all CPUs in 4 shorter columns",
.caption = "CPU",
.draw = QuadColCPUsMeter_draw,
.init = QuadColCPUsMeter_init,
.updateMode = QuadColCPUsMeter_updateMode,
.done = AllCPUsMeter_done
};
MeterClass LeftCPUs4Meter_class = {
.super = {
.extends = Class(Meter),
.delete = Meter_delete,
.display = CPUMeter_display
},
.defaultMode = CUSTOM_METERMODE,
.total = 100.0,
.attributes = CPUMeter_attributes,
.name = "LeftCPUs4",
.uiName = "CPUs (1-4/8)",
.description = "CPUs (1-4/8): first half in 4 shorter columns",
.caption = "CPU",
.draw = QuadColCPUsMeter_draw,
.init = QuadColCPUsMeter_init,
.updateMode = QuadColCPUsMeter_updateMode,
.done = AllCPUsMeter_done
};
MeterClass RightCPUs4Meter_class = {
.super = {
.extends = Class(Meter),
.delete = Meter_delete,
.display = CPUMeter_display
},
.defaultMode = CUSTOM_METERMODE,
.total = 100.0,
.attributes = CPUMeter_attributes,
.name = "RightCPUs4",
.uiName = "CPUs (5-8/8)",
.description = "CPUs (5-8/8): second half in 4 shorter columns",
.caption = "CPU",
.draw = QuadColCPUsMeter_draw,
.init = QuadColCPUsMeter_init,
.updateMode = QuadColCPUsMeter_updateMode,
.done = AllCPUsMeter_done
};