mirror of https://github.com/xzeldon/htop.git
124 lines
4.2 KiB
C
124 lines
4.2 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 unsigned long int cached_rxb_diff = 0;
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static unsigned long int cached_rxp_diff = 0;
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static unsigned long int cached_txb_diff = 0;
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static unsigned long int cached_txp_diff = 0;
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static void NetworkIOMeter_updateValues(ATTR_UNUSED Meter* this, char* buffer, int len) {
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static unsigned long int cached_rxb_total = 0;
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static unsigned long int cached_rxp_total = 0;
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static unsigned long int cached_txb_total = 0;
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static unsigned long int cached_txp_total = 0;
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static unsigned long long int cached_last_update = 0;
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struct timeval tv;
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gettimeofday(&tv, NULL);
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unsigned long long int timeInMilliSeconds = (unsigned long long int)tv.tv_sec * 1000 + (unsigned long long int)tv.tv_usec / 1000;
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unsigned long long int passedTimeInMs = timeInMilliSeconds - cached_last_update;
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/* update only every 500ms */
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if (passedTimeInMs > 500) {
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cached_last_update = timeInMilliSeconds;
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unsigned long int bytesReceived, packetsReceived, bytesTransmitted, packetsTransmitted;
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hasData = Platform_getNetworkIO(&bytesReceived, &packetsReceived, &bytesTransmitted, &packetsTransmitted);
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if (!hasData) {
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xSnprintf(buffer, len, "no data");
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return;
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}
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if (bytesReceived > cached_rxb_total) {
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cached_rxb_diff = (bytesReceived - cached_rxb_total) / 1024; /* Meter_humanUnit() expects unit in kilo */
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cached_rxb_diff = 1000.0 * cached_rxb_diff / passedTimeInMs; /* convert to per second */
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} else {
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cached_rxb_diff = 0;
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}
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cached_rxb_total = bytesReceived;
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if (packetsReceived > cached_rxp_total) {
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cached_rxp_diff = packetsReceived - cached_rxp_total;
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} else {
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cached_rxp_diff = 0;
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}
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cached_rxp_total = packetsReceived;
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if (bytesTransmitted > cached_txb_total) {
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cached_txb_diff = (bytesTransmitted - cached_txb_total) / 1024; /* Meter_humanUnit() expects unit in kilo */
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cached_txb_diff = 1000.0 * cached_txb_diff / passedTimeInMs; /* convert to per second */
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} else {
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cached_txb_diff = 0;
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}
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cached_txb_total = bytesTransmitted;
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if (packetsTransmitted > cached_txp_total) {
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cached_txp_diff = packetsTransmitted - cached_txp_total;
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} else {
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cached_txp_diff = 0;
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}
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cached_txp_total = packetsTransmitted;
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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(buffer, len, "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_write(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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RichString_write(out, CRT_colors[METER_TEXT], "rx: ");
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Meter_humanUnit(buffer, cached_rxb_diff, sizeof(buffer));
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RichString_append(out, CRT_colors[METER_VALUE_IOREAD], buffer);
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RichString_append(out, CRT_colors[METER_VALUE_IOREAD], "iB/s");
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RichString_append(out, CRT_colors[METER_TEXT], " tx: ");
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Meter_humanUnit(buffer, cached_txb_diff, sizeof(buffer));
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RichString_append(out, CRT_colors[METER_VALUE_IOWRITE], buffer);
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RichString_append(out, CRT_colors[METER_VALUE_IOWRITE], "iB/s");
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xSnprintf(buffer, sizeof(buffer), " (%lu/%lu packets) ", cached_rxp_diff, cached_txp_diff);
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RichString_append(out, CRT_colors[METER_TEXT], buffer);
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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 = 0,
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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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