trial option

Util/ProgramOptions.h

@@ -66,7 +66,8 @@ inline bool GenerateServerProgramOptions(
     std::string & ip_address,
     int & ip_port,
     int & requested_num_threads,
-    bool & use_shared_memory
+    bool & use_shared_memory,
+    bool & trial
 ) {
 
     // declare a group of options that will be allowed only on command line
@@ -80,6 +81,11 @@ inline bool GenerateServerProgramOptions(
                 &paths["config"]
             )->default_value("server.ini"),
             "Path to a configuration file"
+        )
+        (
+            "trial",
+            boost::program_options::value<bool>(&trial)->implicit_value(true),
+            "Quit after initialization"
         );
 
     // declare a group of options that will be allowed both on command line

features/options/options.feature

@@ -21,6 +21,7 @@ Feature: Command line options
         And stdout should contain "--version"
         And stdout should contain "--help"
         And stdout should contain "--config"
+        And stdout should contain "--trial"
         And stdout should contain "Configuration:"
         And stdout should contain "--hsgrdata arg"
         And stdout should contain "--nodesdata arg"

routed.cpp

@@ -76,20 +76,20 @@ int main (int argc, const char * argv[])
         bool use_shared_memory = false;
         std::string ip_address;
         int ip_port, requested_thread_num;
+        bool trial = false;
 
         ServerPaths server_paths;
-        if  (!GenerateServerProgramOptions
-                (
+        if( !GenerateServerProgramOptions(
                 argc,
                 argv,
                 server_paths,
                 ip_address,
                 ip_port,
                 requested_thread_num,
-                    use_shared_memory
+                use_shared_memory,
+                trial
              )
-            )
-        {
+        ) {
             return 0;
         }
 
@@ -149,6 +149,9 @@ int main (int argc, const char * argv[])
 
         routing_server->GetRequestHandlerPtr().RegisterRoutingMachine(&osrm_lib);
 
+        if( trial ) {
+            std::cout << "[server] trial run, quitting after successful initialization" << std::endl;
+        } else {
             boost::thread server_thread(boost::bind(&Server::Run, routing_server));
 
 #ifndef _WIN32
@@ -177,6 +180,7 @@ int main (int argc, const char * argv[])
                 SimpleLogger().Write(logDEBUG) <<
                     "Threads did not finish within 2 seconds. Hard abort!";
             }
+        }
 
         std::cout << "[server] freeing objects" << std::endl;
         delete routing_server;