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#include "NetworkIOMeter.h"
#include <stdbool.h>
#include <stddef.h>
#include <sys/time.h>
#include "CRT.h"
#include "Macros.h"
#include "Object.h"
#include "Platform.h"
#include "RichString.h"
#include "XUtils.h"
static const int NetworkIOMeter_attributes[] = {
METER_VALUE_IOREAD,
METER_VALUE_IOWRITE,
};
static bool hasData = false;
static unsigned long int cached_rxb_diff = 0;
static unsigned long int cached_rxp_diff = 0;
static unsigned long int cached_txb_diff = 0;
static unsigned long int cached_txp_diff = 0;
static void NetworkIOMeter_updateValues(Meter* this, char* buffer, size_t len) {
static unsigned long long int cached_last_update = 0;
struct timeval tv;
gettimeofday(&tv, NULL);
unsigned long long int timeInMilliSeconds = (unsigned long long int)tv.tv_sec * 1000 + (unsigned long long int)tv.tv_usec / 1000;
unsigned long long int passedTimeInMs = timeInMilliSeconds - cached_last_update;
/* update only every 500ms */
if (passedTimeInMs > 500) {
static unsigned long int cached_rxb_total = 0;
static unsigned long int cached_rxp_total = 0;
static unsigned long int cached_txb_total = 0;
static unsigned long int cached_txp_total = 0;
cached_last_update = timeInMilliSeconds;
unsigned long int bytesReceived, packetsReceived, bytesTransmitted, packetsTransmitted;
hasData = Platform_getNetworkIO(&bytesReceived, &packetsReceived, &bytesTransmitted, &packetsTransmitted);
if (!hasData) {
xSnprintf(buffer, len, "no data");
return;
}
if (bytesReceived > cached_rxb_total) {
cached_rxb_diff = (bytesReceived - cached_rxb_total) / 1024; /* Meter_humanUnit() expects unit in kilo */
cached_rxb_diff = 1000.0 * cached_rxb_diff / passedTimeInMs; /* convert to per second */
} else {
cached_rxb_diff = 0;
}
cached_rxb_total = bytesReceived;
if (packetsReceived > cached_rxp_total) {
cached_rxp_diff = packetsReceived - cached_rxp_total;
} else {
cached_rxp_diff = 0;
}
cached_rxp_total = packetsReceived;
if (bytesTransmitted > cached_txb_total) {
cached_txb_diff = (bytesTransmitted - cached_txb_total) / 1024; /* Meter_humanUnit() expects unit in kilo */
cached_txb_diff = 1000.0 * cached_txb_diff / passedTimeInMs; /* convert to per second */
} else {
cached_txb_diff = 0;
}
cached_txb_total = bytesTransmitted;
if (packetsTransmitted > cached_txp_total) {
cached_txp_diff = packetsTransmitted - cached_txp_total;
} else {
cached_txp_diff = 0;
}
cached_txp_total = packetsTransmitted;
}
this->values[0] = cached_rxb_diff;
this->values[1] = cached_txb_diff;
if (cached_rxb_diff + cached_txb_diff > this->total) {
this->total = cached_rxb_diff + cached_txb_diff;
}
char bufferBytesReceived[12], bufferBytesTransmitted[12];
Meter_humanUnit(bufferBytesReceived, cached_rxb_diff, sizeof(bufferBytesReceived));
Meter_humanUnit(bufferBytesTransmitted, cached_txb_diff, sizeof(bufferBytesTransmitted));
xSnprintf(buffer, len, "rx:%siB/s tx:%siB/s", bufferBytesReceived, bufferBytesTransmitted);
}
static void NetworkIOMeter_display(ATTR_UNUSED const Object* cast, RichString* out) {
if (!hasData) {
RichString_writeAscii(out, CRT_colors[METER_VALUE_ERROR], "no data");
return;
}
char buffer[64];
RichString_writeAscii(out, CRT_colors[METER_TEXT], "rx: ");
Meter_humanUnit(buffer, cached_rxb_diff, sizeof(buffer));
RichString_appendAscii(out, CRT_colors[METER_VALUE_IOREAD], buffer);
RichString_appendAscii(out, CRT_colors[METER_VALUE_IOREAD], "iB/s");
RichString_appendAscii(out, CRT_colors[METER_TEXT], " tx: ");
Meter_humanUnit(buffer, cached_txb_diff, sizeof(buffer));
RichString_appendAscii(out, CRT_colors[METER_VALUE_IOWRITE], buffer);
RichString_appendAscii(out, CRT_colors[METER_VALUE_IOWRITE], "iB/s");
xSnprintf(buffer, sizeof(buffer), " (%lu/%lu packets) ", cached_rxp_diff, cached_txp_diff);
RichString_appendAscii(out, CRT_colors[METER_TEXT], buffer);
}
const MeterClass NetworkIOMeter_class = {
.super = {
.extends = Class(Meter),
.delete = Meter_delete,
.display = NetworkIOMeter_display
},
.updateValues = NetworkIOMeter_updateValues,
.defaultMode = TEXT_METERMODE,
.maxItems = 2,
.total = 100.0,
.attributes = NetworkIOMeter_attributes,
.name = "NetworkIO",
.uiName = "Network IO",
.caption = "Network: "
};
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