From e2c6c857671d95b8c1c6874e67711015eed060e9 Mon Sep 17 00:00:00 2001
From: Stefan Berger <s.berger81@gmail.com>
Date: Sat, 5 Aug 2023 20:35:39 +0200
Subject: [PATCH] Randomize interval between connection retries

Add a random delay between 1 and 15 secs
---
 src/mining.cpp | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/src/mining.cpp b/src/mining.cpp
index ecfd283..b09e500 100644
--- a/src/mining.cpp
+++ b/src/mining.cpp
@@ -65,10 +65,10 @@ bool checkPoolConnection(void) {
     WiFi.hostByName(poolString, serverIP);
     Serial.printf("Resolved DNS got: %s\n", serverIP.toString());
     vTaskDelay(1000 / portTICK_PERIOD_MS);
-    return true;
+    return false;
   }
 
-  return false;
+  return true;
 }
 
 //Implements a socketKeepAlive function and 
@@ -144,8 +144,10 @@ void runStratumWorker(void *name) {
     //strcpy(btcString,"test");
 
     if(!checkPoolConnection())
-      //If server not reachable add 5sec delay bettween connection petitions
-      vTaskDelay(5000 / portTICK_PERIOD_MS); 
+      //If server is not reachable add random delay for connection retries
+      srand(millis());
+      //Generate value between 1 and 15 secs
+      vTaskDelay(((1 + rand() % 15) * 1000) / portTICK_PERIOD_MS);
 
     if(!isMinerSuscribed){