upd: ready to fix read in half way of write

backend/src/bs-utility.cpp

@@ -48,4 +48,7 @@ void debugPrint() {
   BookStore_ZYM::debug_Print_Mutex.lock();
   std::cerr << std::endl;
   BookStore_ZYM::debug_Print_Mutex.unlock();
-}
+}
+
+void BlockingStringStream::lock() { custom_mutex.lock(); }
+void BlockingStringStream::unlock() { custom_mutex.unlock(); }

backend/src/builtin-cli.cpp

@@ -28,8 +28,15 @@ void BookStoreMain(bool is_server, std::string config_dir) {
       }
       input << "#Request " << SessionToken << " I-T-D " << AuthenticationKey
             << ' ' << cmd << '\n';
-      output.getline(tmp);
-      std::cout << tmp << std::endl;
+      std::string SessionToken;
+      std::string OperationToken;
+      int LineCounter;
+      continue;
+      output >> SessionToken >> OperationToken >> LineCounter;
+      for (int i = 0; i < LineCounter; i++) {
+        output.getline(tmp);
+        std::cout << tmp << std::endl;
+      }
     }
     input << "#CloseSession " << SessionToken << ' ' << AuthenticationKey
           << '\n';

backend/src/schedule.cpp

@@ -1,5 +1,6 @@
 #include "schedule.h"
 
+#include <iostream>
 #include <random>
 #include <sstream>
 
@@ -29,6 +30,29 @@ void BookStoreBackEndClass::Run() {
       session_map[new_SessionToken] = new_session;
       (*output_ptr) << TempChannelID << " IinitialOpt 1\n"
                     << new_SessionToken << ' ' << new_AuthenticationKey << '\n';
+    } else if (request_data[1] == 'C') {
+      ;
+    } else if (request_data[1] == '_') {
+      ;
+    } else if (request_data[1] == 'S') {
+      ;
+    } else if (request_data[1] == 'R') {
+      std::stringstream ss(request_data);
+      std::string SessionToken;
+      std::string OperationToken;
+      std::string OuthenticationKey;
+      std::string cmd;
+      ss >> cmd >> SessionToken >> OperationToken >> OuthenticationKey;
+      ss.get();
+      std::getline(ss, cmd);
+      debugPrint("SessionToken=", SessionToken,
+                 " OperationToken=", OperationToken,
+                 " OuthenticationKey=", OuthenticationKey, " cmd=", cmd);
+      // (*output_ptr) << SessionToken << ' ' << OperationToken << " 0\n";
+      (*output_ptr) << SessionToken << ' ' << OperationToken
+                    << " 1\nECHO: " << cmd << '\n';
+      // std::cerr << "[]" << SessionToken << ' ' << OperationToken
+      //           << " 1\nECHO: " << cmd << '\n';
     }
   }
 }