Add command ``Backlog 1;``

Add command ``Backlog 1;`` to allow execution of following commands without delay

CHANGELOG.md

@@ -17,6 +17,7 @@ All notable changes to this project will be documented in this file.
 - Berry add ``gpio`` module
 - Berry add ``light`` module
 - Support for dummy energy monitor using user values set by commands ``VoltageSet``, ``CurrentSet``, ``PowerSet`` and ``FrequencySet``. Enable by selecting any GPIO as ``Option A2`` (#10640)
+- Command ``Backlog 1;`` to allow execution of following commands without delay
 
 ### Changed
 - PubSubClient library from EspEasy v2.7.12 to Tasmota v2.8.12

RELEASENOTES.md

@@ -83,6 +83,7 @@ The attached binaries can also be downloaded from http://ota.tasmota.com/tasmota
 - Command ``Sensor80 1 <0..7>`` to control MFRC522 RFID antenna gain from 18dB (0) to 48dB (7) [#11073](https://github.com/arendst/Tasmota/issues/11073)
 - Command ``SerialBuffer 256..520`` to change hardware serial receive buffer size from default (256) to max local buffer size (520) [#11448](https://github.com/arendst/Tasmota/issues/11448)
 - Command ``SetOption126 1`` to enable DS18x20 arithmetic mean over teleperiod for JSON temperature based on [#11472](https://github.com/arendst/Tasmota/issues/11472)
+- Command ``Backlog 1;`` to allow execution of following commands without delay
 - Commands ``MqttKeepAlive 1..100`` to set Mqtt Keep Alive timer (default 30) and ``MqttTimeout 1..100`` to set Mqtt Socket Timeout (default 4) [#5341](https://github.com/arendst/Tasmota/issues/5341)
 - Commands ``DisplayType`` to select sub-modules where implemented and ``DisplayInvert`` to select inverted display where implemented
 - Support for SML VBUS [#11125](https://github.com/arendst/Tasmota/issues/11125)

tasmota/support_command.ino

@@ -317,8 +317,10 @@ void CommandHandler(char* topicBuf, char* dataBuf, uint32_t data_len)
 
 /********************************************************************************************/
 
-void CmndBacklog(void)
-{
+void CmndBacklog(void) {
+  // Backlog command1;command2;..    Execute commands in sequence with a delay in between set with SetOption34
+  // Backlog 1;command1;command2;..  Execute commands in sequence with no delay
+
   if (XdrvMailbox.data_len) {
 
 #ifdef SUPPORT_IF_STATEMENT
@@ -340,15 +342,19 @@ void CmndBacklog(void)
         }
       }
       if (*blcommand != '\0') {
+        if (BACKLOG_EMPTY && ('1' == *blcommand)) {
+          TasmotaGlobal.backlog_nodelay = true;
+        } else {
 #ifdef SUPPORT_IF_STATEMENT
-        if (backlog.size() < MAX_BACKLOG) {
-          backlog.add(blcommand);
-        }
+          if (backlog.size() < MAX_BACKLOG) {
+            backlog.add(blcommand);
+          }
 #else
-        TasmotaGlobal.backlog[TasmotaGlobal.backlog_index] = blcommand;
-        TasmotaGlobal.backlog_index++;
-        if (TasmotaGlobal.backlog_index >= MAX_BACKLOG) TasmotaGlobal.backlog_index = 0;
+          TasmotaGlobal.backlog[TasmotaGlobal.backlog_index] = blcommand;
+          TasmotaGlobal.backlog_index++;
+          if (TasmotaGlobal.backlog_index >= MAX_BACKLOG) TasmotaGlobal.backlog_index = 0;
 #endif
+        }
       }
       blcommand = strtok(nullptr, ";");
     }

tasmota/tasmota.ino

@@ -141,6 +141,7 @@ struct {
   bool rule_teleperiod;                     // Process rule based on teleperiod data using prefix TELE-
   bool serial_local;                        // Handle serial locally
   bool fallback_topic_flag;                 // Use Topic or FallbackTopic
+  bool backlog_nodelay;                     // Execute all backlog commands with no delay
   bool backlog_mutex;                       // Command backlog pending
   bool stop_flash_rotate;                   // Allow flash configuration rotation
   bool blinkstate;                          // LED state
@@ -398,11 +399,14 @@ void BacklogLoop(void) {
       if (!nodelay_detected) {
         ExecuteCommand((char*)cmd.c_str(), SRC_BACKLOG);
       }
-      if (nodelay) {
+      if (nodelay || TasmotaGlobal.backlog_nodelay) {
         TasmotaGlobal.backlog_timer = millis();  // Reset backlog_timer which has been set by ExecuteCommand (CommandHandler)
       }
       TasmotaGlobal.backlog_mutex = false;
     }
+    if (BACKLOG_EMPTY) {
+      TasmotaGlobal.backlog_nodelay = false;
+    }
   }
 }