Conservative adjustment of optimistic_yield intervals.

10000µs for just-checking "available"-like scenenarios.

Author: dok-net

libraries/ESP8266WiFi/src/WiFiClient.cpp

@@ -247,7 +247,7 @@ int WiFiClient::available()
     int result = _client->getSize();
 
     if (!result) {
-        optimistic_yield(100);
+        optimistic_yield(10000);
     }
     return result;
 }

libraries/ESP8266WiFi/src/WiFiClientSecureBearSSL.cpp

@@ -479,7 +479,7 @@ int WiFiClientSecureCtx::_run_until(unsigned target, bool blocking) {
   esp8266::polledTimeout::oneShotMs loopTimeout(_timeout);
 
   for (int no_work = 0; blocking || no_work < 2;) {
-    optimistic_yield(100);
+    optimistic_yield(1000);
 
     if (loopTimeout) {
       DEBUG_BSSL("_run_until: Timeout\n");

libraries/ESP8266WiFi/src/WiFiUdp.cpp

@@ -118,7 +118,7 @@ int WiFiUDP::available() {
     if (!result) {
         // yielding here will not make more data "available",
         // but it will prevent the system from going into WDT reset
-        optimistic_yield(1000);
+        optimistic_yield(10000);
     }
 
     return result;
@@ -195,7 +195,7 @@ int WiFiUDP::parsePacket()
         return 0;
 
     if (!_ctx->next()) {
-        optimistic_yield(100);
+        optimistic_yield(10000);
         return 0;
     }