From 65357c8c46154de4e4eca14075bfe5523bb5fc14 Mon Sep 17 00:00:00 2001
From: Daniel Lange <DLange@git.local>
Date: Mon, 7 Dec 2020 10:26:01 +0100
Subject: New upstream version 3.0.3

---
 NetworkIOMeter.c | 125 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 125 insertions(+)
 create mode 100644 NetworkIOMeter.c

(limited to 'NetworkIOMeter.c')

diff --git a/NetworkIOMeter.c b/NetworkIOMeter.c
new file mode 100644
index 0000000..90ec990
--- /dev/null
+++ b/NetworkIOMeter.c
@@ -0,0 +1,125 @@
+#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(ATTR_UNUSED 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;
+   }
+
+   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_write(out, CRT_colors[METER_VALUE_ERROR], "no data");
+      return;
+   }
+
+   char buffer[64];
+
+   RichString_write(out, CRT_colors[METER_TEXT], "rx: ");
+   Meter_humanUnit(buffer, cached_rxb_diff, sizeof(buffer));
+   RichString_append(out, CRT_colors[METER_VALUE_IOREAD], buffer);
+   RichString_append(out, CRT_colors[METER_VALUE_IOREAD], "iB/s");
+
+   RichString_append(out, CRT_colors[METER_TEXT], " tx: ");
+   Meter_humanUnit(buffer, cached_txb_diff, sizeof(buffer));
+   RichString_append(out, CRT_colors[METER_VALUE_IOWRITE], buffer);
+   RichString_append(out, CRT_colors[METER_VALUE_IOWRITE], "iB/s");
+
+   xSnprintf(buffer, sizeof(buffer), " (%lu/%lu packets) ", cached_rxp_diff, cached_txp_diff);
+   RichString_append(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 = 0,
+   .total = 100.0,
+   .attributes = NetworkIOMeter_attributes,
+   .name = "NetworkIO",
+   .uiName = "Network IO",
+   .caption = "Network: "
+};
-- 
cgit v1.2.3