add init boot delay handling in OBSW

bsp_q7s/obsw.cpp

@@ -36,6 +36,28 @@ int obsw::obsw() {
     return OBSW_ALREADY_RUNNING;
   }
 #endif
+
+  // Init delay handling.
+  if(std::filesystem::exists("$HOME/boot_delay.txt")) {
+	 std::ifstream ifile("$HOME/boot_delay.txt");
+	 std::string lineStr;
+	 unsigned int bootDelaySecs = 0;
+	 unsigned int line = 0;
+	 // Try to reas delay seconds from file.
+	 while(std::getline(ifile, lineStr)) {
+		 std::istringstream iss(lineStr);
+		 if(!(iss >> bootDelaySecs)) {
+			 break;
+		 }
+		 line++;
+	 }
+	 if(line == 0) {
+		 // If the file is empty, assume default of 6 seconds
+		 bootDelaySecs = 6;
+	 }
+	 TaskFactory::delayTask(bootDelaySecs);
+  }
+
   scheduling::initMission();
 
   for (;;) {