mirror of https://github.com/xzeldon/htop.git
137 lines
4.3 KiB
C
137 lines
4.3 KiB
C
#include "NetworkIOMeter.h"
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#include <stdbool.h>
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#include <stddef.h>
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#include <sys/time.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 "Platform.h"
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#include "RichString.h"
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#include "XUtils.h"
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static const int NetworkIOMeter_attributes[] = {
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METER_VALUE_IOREAD,
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METER_VALUE_IOWRITE,
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};
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static bool hasData = false;
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static uint32_t cached_rxb_diff;
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static uint32_t cached_rxp_diff;
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static uint32_t cached_txb_diff;
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static uint32_t cached_txp_diff;
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static void NetworkIOMeter_updateValues(Meter* this) {
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const ProcessList* pl = this->pl;
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static uint64_t cached_last_update = 0;
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uint64_t passedTimeInMs = pl->realtimeMs - cached_last_update;
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/* update only every 500ms */
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if (passedTimeInMs > 500) {
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static uint64_t cached_rxb_total;
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static uint64_t cached_rxp_total;
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static uint64_t cached_txb_total;
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static uint64_t cached_txp_total;
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uint64_t diff;
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cached_last_update = pl->realtimeMs;
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NetworkIOData data;
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hasData = Platform_getNetworkIO(&data);
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if (!hasData) {
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xSnprintf(this->txtBuffer, sizeof(this->txtBuffer), "no data");
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return;
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}
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if (data.bytesReceived > cached_rxb_total) {
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diff = data.bytesReceived - cached_rxb_total;
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diff /= ONE_K; /* Meter_humanUnit() expects unit in kilo */
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diff = (1000 * diff) / passedTimeInMs; /* convert to per second */
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cached_rxb_diff = (uint32_t)diff;
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} else {
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cached_rxb_diff = 0;
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}
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cached_rxb_total = data.bytesReceived;
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if (data.packetsReceived > cached_rxp_total) {
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diff = data.packetsReceived - cached_rxp_total;
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cached_rxp_diff = (uint32_t)diff;
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} else {
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cached_rxp_diff = 0;
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}
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cached_rxp_total = data.packetsReceived;
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if (data.bytesTransmitted > cached_txb_total) {
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diff = data.bytesTransmitted - cached_txb_total;
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diff /= ONE_K; /* Meter_humanUnit() expects unit in kilo */
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diff = (1000 * diff) / passedTimeInMs; /* convert to per second */
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cached_txb_diff = (uint32_t)diff;
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} else {
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cached_txb_diff = 0;
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}
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cached_txb_total = data.bytesTransmitted;
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if (data.packetsTransmitted > cached_txp_total) {
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diff = data.packetsTransmitted - cached_txp_total;
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cached_txp_diff = (uint32_t)diff;
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} else {
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cached_txp_diff = 0;
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}
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cached_txp_total = data.packetsTransmitted;
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}
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this->values[0] = cached_rxb_diff;
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this->values[1] = cached_txb_diff;
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if (cached_rxb_diff + cached_txb_diff > this->total) {
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this->total = cached_rxb_diff + cached_txb_diff;
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}
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char bufferBytesReceived[12], bufferBytesTransmitted[12];
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Meter_humanUnit(bufferBytesReceived, cached_rxb_diff, sizeof(bufferBytesReceived));
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Meter_humanUnit(bufferBytesTransmitted, cached_txb_diff, sizeof(bufferBytesTransmitted));
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xSnprintf(this->txtBuffer, sizeof(this->txtBuffer), "rx:%siB/s tx:%siB/s", bufferBytesReceived, bufferBytesTransmitted);
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}
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static void NetworkIOMeter_display(ATTR_UNUSED const Object* cast, RichString* out) {
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if (!hasData) {
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RichString_writeAscii(out, CRT_colors[METER_VALUE_ERROR], "no data");
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return;
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}
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char buffer[64];
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int len;
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RichString_writeAscii(out, CRT_colors[METER_TEXT], "rx: ");
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Meter_humanUnit(buffer, cached_rxb_diff, sizeof(buffer));
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RichString_appendAscii(out, CRT_colors[METER_VALUE_IOREAD], buffer);
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RichString_appendAscii(out, CRT_colors[METER_VALUE_IOREAD], "iB/s");
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RichString_appendAscii(out, CRT_colors[METER_TEXT], " tx: ");
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Meter_humanUnit(buffer, cached_txb_diff, sizeof(buffer));
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RichString_appendAscii(out, CRT_colors[METER_VALUE_IOWRITE], buffer);
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RichString_appendAscii(out, CRT_colors[METER_VALUE_IOWRITE], "iB/s");
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len = xSnprintf(buffer, sizeof(buffer), " (%u/%u packets) ", cached_rxp_diff, cached_txp_diff);
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RichString_appendnAscii(out, CRT_colors[METER_TEXT], buffer, len);
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}
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const MeterClass NetworkIOMeter_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 = NetworkIOMeter_display
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},
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.updateValues = NetworkIOMeter_updateValues,
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.defaultMode = TEXT_METERMODE,
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.maxItems = 2,
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.total = 100.0,
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.attributes = NetworkIOMeter_attributes,
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.name = "NetworkIO",
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.uiName = "Network IO",
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.caption = "Network: "
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};
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