DFHack::Core modification: added a way to share void* between plugins and/or plugin unloads.

library/Core.cpp

@@ -469,6 +469,19 @@ std::string Core::getHotkeyCmd( void )
     return returner;
 }
 
+void Core::RegisterData(void *p,std::string key)
+{
+	misc_data_map[key]=p;
+}
+		
+void *Core::GetData(std::string key)
+{
+	std::map<std::string,void*>::iterator it=misc_data_map.find(key);
+	if (it!=misc_data_map.end())
+		return misc_data_map[key];
+	else
+		return 0;// or throw an error.
+}
 
 void Core::Suspend()
 {

library/include/dfhack/Core.h

@@ -126,6 +126,11 @@ namespace DFHack
         /// removes the hotkey command and gives it to the caller thread
         std::string getHotkeyCmd( void );
 
+		/// adds a named pointer (for later or between plugins)
+		void RegisterData(void *p,std::string key);
+		/// returns a named pointer.
+		void *GetData(std::string key);
+
         DFHack::Process * p;
         DFHack::VersionInfo * vinfo;
         DFHack::Console con;
@@ -174,5 +179,7 @@ namespace DFHack
         tthread::condition_variable * HotkeyCond;
         // Very important!
         bool started;
+
+		std::map<std::string,void*> misc_data_map;
     };
 }