print limits when running limit commands with no arguments

It's more user friendly that an error message saying the command
does not exist.

src/daemon/command_parser_executor.cpp

@@ -251,7 +251,10 @@ bool t_command_parser_executor::print_status(const std::vector<std::string>& arg
 
 bool t_command_parser_executor::set_limit(const std::vector<std::string>& args)
 {
-  if(args.size()!=1) return false;
+  if(args.size()>1) return false;
+  if(args.size()==0) {
+    return m_executor.get_limit();
+  }
   int limit;
   try {
       limit = std::stoi(args[0]);
@@ -267,7 +270,10 @@ bool t_command_parser_executor::set_limit(const std::vector<std::string>& args)
 
 bool t_command_parser_executor::set_limit_up(const std::vector<std::string>& args)
 {
-  if(args.size()!=1) return false;
+  if(args.size()>1) return false;
+  if(args.size()==0) {
+    return m_executor.get_limit_up();
+  }
   int limit;
   try {
       limit = std::stoi(args[0]);
@@ -283,7 +289,10 @@ bool t_command_parser_executor::set_limit_up(const std::vector<std::string>& arg
 
 bool t_command_parser_executor::set_limit_down(const std::vector<std::string>& args)
 {
-  if(args.size()!=1) return false;
+  if(args.size()>1) return false;
+  if(args.size()==0) {
+    return m_executor.get_limit_down();
+  }
   int limit;
   try {
       limit = std::stoi(args[0]);

src/daemon/rpc_command_executor.cpp

@@ -737,6 +737,15 @@ bool t_rpc_command_executor::print_status()
   return true;
 }
 
+bool t_rpc_command_executor::get_limit()
+{
+    int limit_down = epee::net_utils::connection_basic::get_rate_down_limit( );
+    int limit_up = epee::net_utils::connection_basic::get_rate_up_limit( );
+    std::cout << "limit-down is " << limit_down/1024 << " kB/s" << std::endl;
+    std::cout << "limit-up is " << limit_up/1024 << " kB/s" << std::endl;
+    return true;
+}
+
 bool t_rpc_command_executor::set_limit(int limit)
 {
     epee::net_utils::connection_basic::set_rate_down_limit( limit );
@@ -746,6 +755,13 @@ bool t_rpc_command_executor::set_limit(int limit)
     return true;
 }
 
+bool t_rpc_command_executor::get_limit_up()
+{
+    int limit_up = epee::net_utils::connection_basic::get_rate_up_limit( );
+    std::cout << "limit-up is " << limit_up/1024 << " kB/s" << std::endl;
+    return true;
+}
+
 bool t_rpc_command_executor::set_limit_up(int limit)
 {
     epee::net_utils::connection_basic::set_rate_up_limit( limit );
@@ -753,6 +769,13 @@ bool t_rpc_command_executor::set_limit_up(int limit)
     return true;
 }
 
+bool t_rpc_command_executor::get_limit_down()
+{
+    int limit_down = epee::net_utils::connection_basic::get_rate_down_limit( );
+    std::cout << "limit-down is " << limit_down/1024 << " kB/s" << std::endl;
+    return true;
+}
+
 bool t_rpc_command_executor::set_limit_down(int limit)
 {
     epee::net_utils::connection_basic::set_rate_down_limit( limit );

src/daemon/rpc_command_executor.h

@@ -99,6 +99,12 @@ public:
 
   bool print_status();
 
+  bool get_limit();
+
+  bool get_limit_up();
+
+  bool get_limit_down();
+
   bool set_limit(int limit);
 
   bool set_limit_up(int limit);

src/p2p/connection_basic.cpp

@@ -199,6 +199,23 @@ void connection_basic::set_rate_down_limit(uint64_t limit) {
     save_limit_to_file(limit);
 }
 
+uint64_t connection_basic::get_rate_up_limit() {
+    uint64_t limit;
+    {
+         CRITICAL_REGION_LOCAL( network_throttle_manager::m_lock_get_global_throttle_out );
+         limit = network_throttle_manager::get_global_throttle_out().get_terget_speed();
+	}
+    return limit;
+}
+
+uint64_t connection_basic::get_rate_down_limit() {
+    uint64_t limit;
+    {
+         CRITICAL_REGION_LOCAL( network_throttle_manager::m_lock_get_global_throttle_in );
+         limit = network_throttle_manager::get_global_throttle_in().get_terget_speed();
+	}
+    return limit;
+}
 
 void connection_basic::save_limit_to_file(int limit) {
     // saving limit to file

src/p2p/connection_basic.hpp

@@ -119,6 +119,8 @@ class connection_basic { // not-templated base class for rapid developmet of som
 		
 		static void set_rate_up_limit(uint64_t limit);
 		static void set_rate_down_limit(uint64_t limit);
+		static uint64_t get_rate_up_limit();
+		static uint64_t get_rate_down_limit();
 
 		// config misc
 		static void set_tos_flag(int tos); // ToS / QoS flag