Rework CPU counting

Currently htop does not support offline CPUs and hot-swapping, e.g. via
    echo 0 > /sys/devices/system/cpu/cpu2/online

Split the current single cpuCount variable into activeCPUs and
existingCPUs.

Supersedes: #650
Related: #580
This commit is contained in:
Christian Göttsche
2021-06-12 18:17:28 +02:00
committed by Benny Baumann
parent c9abd788b1
commit 41af31be7f
28 changed files with 276 additions and 148 deletions

View File

@ -43,7 +43,7 @@ static void CPUMeter_init(Meter* this) {
unsigned int cpu = this->param;
if (cpu == 0) {
Meter_setCaption(this, "Avg");
} else if (this->pl->cpuCount > 1) {
} else if (this->pl->activeCPUs > 1) {
char caption[10];
xSnprintf(caption, sizeof(caption), "%3u", Settings_cpuId(this->pl->settings, cpu - 1));
Meter_setCaption(this, caption);
@ -59,21 +59,24 @@ static void CPUMeter_getUiName(const Meter* this, char* buffer, size_t length) {
}
static void CPUMeter_updateValues(Meter* this) {
memset(this->values, 0, sizeof(double) * CPU_METER_ITEMCOUNT);
unsigned int cpu = this->param;
if (cpu > this->pl->cpuCount) {
if (cpu > this->pl->existingCPUs) {
xSnprintf(this->txtBuffer, sizeof(this->txtBuffer), "absent");
for (uint8_t i = 0; i < this->curItems; i++)
this->values[i] = 0;
return;
}
memset(this->values, 0, sizeof(double) * CPU_METER_ITEMCOUNT);
double percent = Platform_setCPUValues(this, cpu);
if (isnan(percent)) {
xSnprintf(this->txtBuffer, sizeof(this->txtBuffer), "offline");
return;
}
char cpuUsageBuffer[8] = { 0 };
char cpuFrequencyBuffer[16] = { 0 };
char cpuTemperatureBuffer[16] = { 0 };
double percent = Platform_setCPUValues(this, cpu);
if (this->pl->settings->showCPUUsage) {
xSnprintf(cpuUsageBuffer, sizeof(cpuUsageBuffer), "%.1f%%", percent);
}
@ -112,7 +115,7 @@ static void CPUMeter_display(const Object* cast, RichString* out) {
int len;
const Meter* this = (const Meter*)cast;
if (this->param > this->pl->cpuCount) {
if (this->param > this->pl->existingCPUs) {
RichString_appendAscii(out, CRT_colors[METER_TEXT], "absent");
return;
}
@ -206,7 +209,7 @@ static void AllCPUsMeter_updateValues(Meter* this) {
}
static void CPUMeterCommonInit(Meter* this, int ncol) {
unsigned int cpus = this->pl->cpuCount;
unsigned int cpus = this->pl->existingCPUs;
CPUMeterData* data = this->meterData;
if (!data) {
data = this->meterData = xMalloc(sizeof(CPUMeterData));