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157086e750
RichString_writeFrom takes a top spot during performance analysis due to the calls to mbstowcs() and iswprint(). Most of the time we know in advance that we are only going to print regular ASCII characters.
89 lines
2.8 KiB
C
89 lines
2.8 KiB
C
/*
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htop - TasksMeter.c
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(C) 2004-2011 Hisham H. Muhammad
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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 "TasksMeter.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 "Settings.h"
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#include "XUtils.h"
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static const int TasksMeter_attributes[] = {
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CPU_SYSTEM,
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PROCESS_THREAD,
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PROCESS,
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TASKS_RUNNING
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};
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static void TasksMeter_updateValues(Meter* this, char* buffer, size_t len) {
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const ProcessList* pl = this->pl;
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this->values[0] = pl->kernelThreads;
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this->values[1] = pl->userlandThreads;
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this->values[2] = pl->totalTasks - pl->kernelThreads - pl->userlandThreads;
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this->values[3] = MINIMUM(pl->runningTasks, pl->cpuCount);
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if (pl->totalTasks > this->total) {
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this->total = pl->totalTasks;
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}
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if (pl->settings->hideKernelThreads) {
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this->values[0] = 0;
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}
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xSnprintf(buffer, len, "%d/%d", (int) this->values[3], (int) this->total);
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}
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static void TasksMeter_display(const Object* cast, RichString* out) {
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const Meter* this = (const Meter*)cast;
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const Settings* settings = this->pl->settings;
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char buffer[20];
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int processes = (int) this->values[2];
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xSnprintf(buffer, sizeof(buffer), "%d", processes);
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RichString_writeAscii(out, CRT_colors[METER_VALUE], buffer);
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int threadValueColor = CRT_colors[METER_VALUE];
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int threadCaptionColor = CRT_colors[METER_TEXT];
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if (settings->highlightThreads) {
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threadValueColor = CRT_colors[PROCESS_THREAD_BASENAME];
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threadCaptionColor = CRT_colors[PROCESS_THREAD];
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}
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if (!settings->hideUserlandThreads) {
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RichString_appendAscii(out, CRT_colors[METER_TEXT], ", ");
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xSnprintf(buffer, sizeof(buffer), "%d", (int)this->values[1]);
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RichString_appendAscii(out, threadValueColor, buffer);
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RichString_appendAscii(out, threadCaptionColor, " thr");
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}
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if (!settings->hideKernelThreads) {
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RichString_appendAscii(out, CRT_colors[METER_TEXT], ", ");
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xSnprintf(buffer, sizeof(buffer), "%d", (int)this->values[0]);
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RichString_appendAscii(out, threadValueColor, buffer);
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RichString_appendAscii(out, threadCaptionColor, " kthr");
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}
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RichString_appendAscii(out, CRT_colors[METER_TEXT], "; ");
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xSnprintf(buffer, sizeof(buffer), "%d", (int)this->values[3]);
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RichString_appendAscii(out, CRT_colors[TASKS_RUNNING], buffer);
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RichString_appendAscii(out, CRT_colors[METER_TEXT], " running");
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}
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const MeterClass TasksMeter_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 = TasksMeter_display,
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},
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.updateValues = TasksMeter_updateValues,
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.defaultMode = TEXT_METERMODE,
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.maxItems = 4,
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.total = 100.0,
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.attributes = TasksMeter_attributes,
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.name = "Tasks",
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.uiName = "Task counter",
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.caption = "Tasks: "
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};
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