Write the compilation configuration to config.h

.gitignore

@@ -35,3 +35,4 @@ build
 cmake-build-debug
 .idea
 lib/inc/drogon/version.h
+lib/inc/drogon/config.h

CMakeLists.txt

@@ -43,7 +43,7 @@ if(Boost_FOUND)
 endif()
 
 
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=${CMAKE_CXX_STD_FLAGS} -g -ggdb -Wall -fpermissive")
+set(CMAKE_CXX_FLAGS "-std=${CMAKE_CXX_STD_FLAGS} -g -Wall -fpermissive ${CMAKE_CXX_FLAGS}")
 
 #string(REPLACE ";" " " CMAKE_CXX_FLAGS "${CXX_FLAGS}")
 
@@ -73,10 +73,26 @@ install(TARGETS drogon DESTINATION lib)
 
 file(GLOB trantor_net_headers "${CMAKE_CURRENT_SOURCE_DIR}/lib/inc/drogon/*.h")
 install(FILES ${trantor_net_headers} DESTINATION include/drogon)
-
+file(WRITE "./config.h" "const char definitions[]=\"")
 add_dependencies(drogon trantor)
 add_dependencies(drogon makeVersion)
 
+get_directory_property(DEFS COMPILE_DEFINITIONS)
+foreach(loop_var ${DEFS})
+message(STATUS "definitions " ${loop_var})
+    file(APPEND "./config.h" "-D" ${loop_var} " ")
+endforeach(loop_var)
+file(APPEND "./config.h" "\";")
+file(APPEND "./config.h" "\n" "const char compileFlags[]=\"" ${CMAKE_CXX_FLAGS} "\";")
+
+get_target_property(INS drogon INCLUDE_DIRECTORIES)
+file(APPEND "./config.h" "\nconst char includeDirs[]=\"")
+foreach(loop_var ${INS})
+file(APPEND "./config.h" "-I" ${loop_var} " ")
+endforeach(loop_var)
+file(APPEND "./config.h" "\";\n")
+EXEC_PROGRAM(${PROJECT_SOURCE_DIR}/update_config.sh ARGS "${PROJECT_SOURCE_DIR}/config.h ${PROJECT_SOURCE_DIR}/lib/inc/drogon/config.h")
+
 if (MAKETEST STREQUAL YES)
     ADD_SUBDIRECTORY(tests)
 endif ()

drogon_ctl/version.cc

@@ -14,6 +14,7 @@
 
 #include "version.h"
 #include <drogon/version.h>
+#include <drogon/config.h>
 #include <iostream>
 
 using namespace drogon_ctl;
@@ -30,4 +31,5 @@ void version::handleCommand(std::vector<std::string> &parameters)
     std::cout<<"drogon ctl tools"<<std::endl;
     std::cout<<"version:"<<VERSION<<std::endl;
     std::cout<<"git commit:"<<VERSION_MD5<<std::endl;
+    std::cout<<"compile config:"<<definitions<<compileFlags<<includeDirs<<std::endl;
 }

examples/CMakeLists.txt

@@ -1,4 +1,4 @@
-link_libraries(drogon trantor uuid pthread jsoncpp ssl crypto)
+link_libraries(drogon trantor uuid pthread jsoncpp ssl crypto dl)
 
 FILE(GLOB SCP_LIST ${CMAKE_CURRENT_SOURCE_DIR}/static_link_example/*.csp)
 foreach(cspFile ${SCP_LIST})

lib/src/SharedLibManager.cc

@@ -18,7 +18,9 @@
 #include <sys/stat.h>
 #include <unistd.h>
 #include <dirent.h>
+#include <dlfcn.h>
 
+void *dlopen(const char *filename, int flag);
 static void forEachFileIn(const std::string &path,const std::function<void (const std::string &filename)> &cb)
 {
     DIR* dp;
@@ -53,7 +55,7 @@ static void forEachFileIn(const std::string &path,const std::function<void (cons
         /* if dirent is a directory, continue */
         if(S_ISDIR(st.st_mode))
             continue;
-        cb(dirp->d_name);
+        cb(fullname);
 
     }
     return;
@@ -70,8 +72,30 @@ _viewPath(viewPath)
 }
 void SharedLibManager::managerLibs()
 {
-    //LOG_DEBUG<<"manager .so libs in path "<<_viewPath;
-    forEachFileIn("./",[](const std::string &filename){
+    LOG_DEBUG<<"manager .so libs in path "<<_viewPath;
+    forEachFileIn(_viewPath,[=](const std::string &filename){
         LOG_DEBUG<<filename;
+        auto pos=filename.rfind(".");
+        if(pos!=std::string::npos)
+        {
+            auto exName=filename.substr(pos+1);
+            if(exName=="so")
+            {
+                //loading so file;
+                if(_dlMap.find(filename)!=_dlMap.end())
+                    return;
+                auto Handle=dlopen(filename.c_str(),RTLD_NOW);
+                if(!Handle)
+                {
+                    LOG_ERROR<<"load "<<filename<<" error!";
+                    LOG_ERROR<<dlerror();
+                }
+                else
+                {
+                    LOG_DEBUG<<"Successfully loaded library file "<<filename;
+                    _dlMap[filename]=Handle;
+                }
+            }
+        }
     });
 }

lib/src/SharedLibManager.h

@@ -15,6 +15,7 @@
 
 #include <trantor/utils/NonCopyable.h>
 #include <trantor/net/EventLoop.h>
+#include <unordered_map>
 namespace drogon{
     class SharedLibManager:public trantor::NonCopyable
     {
@@ -25,5 +26,6 @@ namespace drogon{
         void managerLibs();
         trantor::EventLoop *_loop;
         std::string _viewPath;
+        std::unordered_map<std::string,void *> _dlMap;
     };
 }

update_config.sh

@@ -0,0 +1,11 @@
+#!/bin/sh
+echo "update config.h"
+if [ ! -f $2 ];then
+mv -f $1 $2
+else
+diff $1 $2
+if [ $? -eq 1 ];then
+mv -f $1 $2
+fi
+fi
+rm -f $1