]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/modules.cpp
Allow static initialization of dynamic_reference objects
[user/henk/code/inspircd.git] / src / modules.cpp
index d86dc62705ce6c33e500683c9fc5c1999c88024c..bf5506d6876c23ad5e0157df2b6740ad0b4783ae 100644 (file)
@@ -2,7 +2,7 @@
  *       | Inspire Internet Relay Chat Daemon |
  *       +------------------------------------+
  *
- *  InspIRCd: (C) 2002-2009 InspIRCd Development Team
+ *  InspIRCd: (C) 2002-2010 InspIRCd Development Team
  * See: http://wiki.inspircd.org/Credits
  *
  * This program is free but copyrighted software; see
        #include <dirent.h>
 #endif
 
+static std::vector<dynamic_reference_base*>* dynrefs = NULL;
+
+void dynamic_reference_base::reset_all()
+{
+       if (!dynrefs)
+               return;
+       for(unsigned int i = 0; i < dynrefs->size(); i++)
+               (*dynrefs)[i]->ClearCache();
+}
 
 // Version is a simple class for holding a modules version number
 template<>
-VersionBase<API_VERSION>::VersionBase(const std::string &modv, int flags, const std::string& rev)
-: description(modv), version(rev), Flags(flags)
+VersionBase<API_VERSION>::VersionBase(const std::string &desc, int flags)
+: description(desc), Flags(flags)
+{
+}
+
+template<>
+VersionBase<API_VERSION>::VersionBase(const std::string &desc, int flags, const std::string& linkdata)
+: description(desc), Flags(flags), link_data(linkdata)
+{
+}
+
+template<>
+bool VersionBase<API_VERSION>::CanLink(const std::string& other_data)
 {
+       return link_data == other_data;
 }
 
 Request::Request(Module* src, Module* dst, const char* idstr)
@@ -87,8 +108,9 @@ ModResult    Module::OnKill(User*, User*, const std::string&) { return MOD_RES_PASS
 void           Module::OnLoadModule(Module*) { }
 void           Module::OnUnloadModule(Module*) { }
 void           Module::OnBackgroundTimer(time_t) { }
-ModResult      Module::OnPreCommand(std::string&, std::vector<std::string>&, User *, bool, const std::string&) { return MOD_RES_PASSTHRU; }
-void           Module::OnPostCommand(const std::string&, const std::vector<std::string>&, User *, CmdResult, const std::string&) { }
+ModResult      Module::OnPreCommand(std::string&, std::vector<std::string>&, LocalUser*, bool, const std::string&) { return MOD_RES_PASSTHRU; }
+void           Module::OnPostCommand(const std::string&, const std::vector<std::string>&, LocalUser*, CmdResult, const std::string&) { }
+void           Module::OnUserInit(LocalUser*) { }
 ModResult      Module::OnCheckReady(LocalUser*) { return MOD_RES_PASSTHRU; }
 ModResult      Module::OnUserRegister(LocalUser*) { return MOD_RES_PASSTHRU; }
 ModResult      Module::OnUserPreKick(User*, Membership*, const std::string&) { return MOD_RES_PASSTHRU; }
@@ -139,18 +161,17 @@ void              Module::OnCleanup(int, void*) { }
 ModResult      Module::OnChannelPreDelete(Channel*) { return MOD_RES_PASSTHRU; }
 void           Module::OnChannelDelete(Channel*) { }
 ModResult      Module::OnSetAway(User*, const std::string &) { return MOD_RES_PASSTHRU; }
-ModResult      Module::OnUserList(User*, Channel*) { return MOD_RES_PASSTHRU; }
 ModResult      Module::OnWhoisLine(User*, User*, int&, std::string&) { return MOD_RES_PASSTHRU; }
 void           Module::OnBuildNeighborList(User*, UserChanList&, std::map<User*,bool>&) { }
 void           Module::OnGarbageCollect() { }
+ModResult      Module::OnSetConnectClass(LocalUser* user, ConnectClass* myclass) { return MOD_RES_PASSTHRU; }
 void           Module::OnText(User*, void*, int, const std::string&, char, CUList&) { }
 void           Module::OnRunTestSuite() { }
 void           Module::OnNamesListItem(User*, Membership*, std::string&, std::string&) { }
 ModResult      Module::OnNumeric(User*, unsigned int, const std::string&) { return MOD_RES_PASSTHRU; }
 void           Module::OnHookIO(StreamSocket*, ListenSocket*) { }
 ModResult   Module::OnAcceptConnection(int, ListenSocket*, irc::sockets::sockaddrs*, irc::sockets::sockaddrs*) { return MOD_RES_PASSTHRU; }
-void           Module::OnSendWhoLine(User*, User*, Channel*, std::string&) { }
-ModResult      Module::OnChannelRestrictionApply(User*, Channel*, const char*) { return MOD_RES_PASSTHRU; }
+void           Module::OnSendWhoLine(User*, const std::vector<std::string>&, User*, Channel*, std::string&) { }
 
 ModuleManager::ModuleManager() : ModCount(0)
 {
@@ -162,6 +183,9 @@ ModuleManager::~ModuleManager()
 
 bool ModuleManager::Attach(Implementation i, Module* mod)
 {
+       if (Modules.find(mod->ModuleSourceFile) == Modules.end())
+               ServerInstance->Logs->Log("MODULE", DEFAULT, "Module is attaching to hook %d in constructor; this does not handle exceptions correctly!", i);
+
        if (std::find(EventHandlers[i].begin(), EventHandlers[i].end(), mod) != EventHandlers[i].end())
                return false;
 
@@ -200,7 +224,7 @@ bool ModuleManager::SetPriority(Module* mod, Priority s)
        return true;
 }
 
-bool ModuleManager::SetPriority(Module* mod, Implementation i, Priority s, Module** modules, size_t sz)
+bool ModuleManager::SetPriority(Module* mod, Implementation i, Priority s, Module* which)
 {
        /** To change the priority of a module, we first find its position in the vector,
         * then we find the position of the other modules in the vector that this module
@@ -208,10 +232,7 @@ bool ModuleManager::SetPriority(Module* mod, Implementation i, Priority s, Modul
         * on which they want, and we make sure our module is *at least* before or after
         * the first or last of this subset, depending again on the type of priority.
         */
-       size_t swap_pos = 0;
-       size_t source = 0;
-       bool swap = true;
-       bool found = false;
+       size_t my_pos = 0;
 
        /* Locate our module. This is O(n) but it only occurs on module load so we're
         * not too bothered about it
@@ -220,81 +241,65 @@ bool ModuleManager::SetPriority(Module* mod, Implementation i, Priority s, Modul
        {
                if (EventHandlers[i][x] == mod)
                {
-                       source = x;
-                       found = true;
-                       break;
+                       my_pos = x;
+                       goto found_src;
                }
        }
 
        /* Eh? this module doesnt exist, probably trying to set priority on an event
         * theyre not attached to.
         */
-       if (!found)
-               return false;
+       return false;
 
+found_src:
+       size_t swap_pos = my_pos;
        switch (s)
        {
-               /* Dummy value */
-               case PRIORITY_DONTCARE:
-                       swap = false;
-               break;
-               /* Module wants to be first, sod everything else */
                case PRIORITY_FIRST:
                        if (prioritizationState != PRIO_STATE_FIRST)
-                               swap = false;
+                               return true;
                        else
                                swap_pos = 0;
-               break;
-               /* Module wants to be last. */
+                       break;
                case PRIORITY_LAST:
                        if (prioritizationState != PRIO_STATE_FIRST)
-                               swap = false;
-                       else if (EventHandlers[i].empty())
-                               swap_pos = 0;
+                               return true;
                        else
                                swap_pos = EventHandlers[i].size() - 1;
-               break;
-               /* Place this module after a set of other modules */
+                       break;
                case PRIORITY_AFTER:
                {
-                       /* Find the latest possible position */
-                       swap_pos = 0;
-                       swap = false;
-                       for (size_t x = 0; x != EventHandlers[i].size(); ++x)
+                       /* Find the latest possible position, only searching AFTER our position */
+                       for (size_t x = EventHandlers[i].size() - 1; x > my_pos; --x)
                        {
-                               for (size_t n = 0; n < sz; ++n)
+                               if (EventHandlers[i][x] == which)
                                {
-                                       if ((modules[n]) && (EventHandlers[i][x] == modules[n]) && (x >= swap_pos) && (source <= swap_pos))
-                                       {
-                                               swap_pos = x;
-                                               swap = true;
-                                       }
+                                       swap_pos = x;
+                                       goto swap_now;
                                }
                        }
+                       // didn't find it - either not loaded or we're already after
+                       return true;
                }
-               break;
                /* Place this module before a set of other modules */
                case PRIORITY_BEFORE:
                {
-                       swap_pos = EventHandlers[i].size() - 1;
-                       swap = false;
-                       for (size_t x = 0; x != EventHandlers[i].size(); ++x)
+                       for (size_t x = 0; x < my_pos; ++x)
                        {
-                               for (size_t n = 0; n < sz; ++n)
+                               if (EventHandlers[i][x] == which)
                                {
-                                       if ((modules[n]) && (EventHandlers[i][x] == modules[n]) && (x <= swap_pos) && (source >= swap_pos))
-                                       {
-                                               swap = true;
-                                               swap_pos = x;
-                                       }
+                                       swap_pos = x;
+                                       goto swap_now;
                                }
                        }
+                       // didn't find it - either not loaded or we're already before
+                       return true;
                }
-               break;
        }
 
+swap_now:
        /* Do we need to swap? */
-       if (swap && (swap_pos != source))
+       if (swap_pos != my_pos)
        {
                // We are going to change positions; we'll need to run again to verify all requirements
                if (prioritizationState == PRIO_STATE_LAST)
@@ -302,10 +307,10 @@ bool ModuleManager::SetPriority(Module* mod, Implementation i, Priority s, Modul
                /* Suggestion from Phoenix, "shuffle" the modules to better retain call order */
                int incrmnt = 1;
 
-               if (source > swap_pos)
+               if (my_pos > swap_pos)
                        incrmnt = -1;
 
-               for (unsigned int j = source; j != swap_pos; j += incrmnt)
+               for (unsigned int j = my_pos; j != swap_pos; j += incrmnt)
                {
                        if (( j + incrmnt > EventHandlers[i].size() - 1) || (j + incrmnt < 0))
                                continue;
@@ -317,183 +322,222 @@ bool ModuleManager::SetPriority(Module* mod, Implementation i, Priority s, Modul
        return true;
 }
 
-std::string& ModuleManager::LastError()
+bool ModuleManager::CanUnload(Module* mod)
 {
-       return LastModuleError;
-}
+       std::map<std::string, Module*>::iterator modfind = Modules.find(mod->ModuleSourceFile);
 
-bool ModuleManager::PublishFeature(const std::string &FeatureName, Module* Mod)
-{
-       if (Features.find(FeatureName) == Features.end())
+       if (modfind == Modules.end() || modfind->second != mod)
        {
-               Features[FeatureName] = Mod;
-               return true;
+               LastModuleError = "Module " + mod->ModuleSourceFile + " is not loaded, cannot unload it!";
+               ServerInstance->Logs->Log("MODULE", DEFAULT, LastModuleError);
+               return false;
        }
-       return false;
-}
-
-bool ModuleManager::UnpublishFeature(const std::string &FeatureName)
-{
-       featurelist::iterator iter = Features.find(FeatureName);
-
-       if (iter == Features.end())
+       if (mod->GetVersion().Flags & VF_STATIC)
+       {
+               LastModuleError = "Module " + mod->ModuleSourceFile + " not unloadable (marked static)";
+               ServerInstance->Logs->Log("MODULE", DEFAULT, LastModuleError);
                return false;
-
-       Features.erase(iter);
+       }
        return true;
 }
 
-Module* ModuleManager::FindFeature(const std::string &FeatureName)
-{
-       featurelist::iterator iter = Features.find(FeatureName);
-
-       if (iter == Features.end())
-               return NULL;
-
-       return iter->second;
-}
-
-bool ModuleManager::PublishInterface(const std::string &InterfaceName, Module* Mod)
+void ModuleManager::DoSafeUnload(Module* mod)
 {
-       interfacelist::iterator iter = Interfaces.find(InterfaceName);
+       std::map<std::string, Module*>::iterator modfind = Modules.find(mod->ModuleSourceFile);
 
-       if (iter == Interfaces.end())
+       std::vector<reference<ExtensionItem> > items;
+       ServerInstance->Extensions.BeginUnregister(modfind->second, items);
+       /* Give the module a chance to tidy out all its metadata */
+       for (chan_hash::iterator c = ServerInstance->chanlist->begin(); c != ServerInstance->chanlist->end(); c++)
        {
-               modulelist ml;
-               ml.push_back(Mod);
-               Interfaces[InterfaceName] = std::make_pair(0, ml);
+               mod->OnCleanup(TYPE_CHANNEL,c->second);
+               c->second->doUnhookExtensions(items);
+               const UserMembList* users = c->second->GetUsers();
+               for(UserMembCIter mi = users->begin(); mi != users->end(); mi++)
+                       mi->second->doUnhookExtensions(items);
        }
-       else
+       for (user_hash::iterator u = ServerInstance->Users->clientlist->begin(); u != ServerInstance->Users->clientlist->end(); u++)
        {
-               iter->second.second.push_back(Mod);
+               mod->OnCleanup(TYPE_USER,u->second);
+               u->second->doUnhookExtensions(items);
+       }
+       for(char m='A'; m <= 'z'; m++)
+       {
+               ModeHandler* mh;
+               mh = ServerInstance->Modes->FindMode(m, MODETYPE_USER);
+               if (mh && mh->creator == mod)
+                       ServerInstance->Modes->DelMode(mh);
+               mh = ServerInstance->Modes->FindMode(m, MODETYPE_CHANNEL);
+               if (mh && mh->creator == mod)
+                       ServerInstance->Modes->DelMode(mh);
+       }
+       for(std::multimap<std::string, ServiceProvider*>::iterator i = DataProviders.begin(); i != DataProviders.end(); )
+       {
+               std::multimap<std::string, ServiceProvider*>::iterator curr = i++;
+               if (curr->second->creator == mod)
+                       DataProviders.erase(curr);
        }
-       return true;
-}
 
-bool ModuleManager::UnpublishInterface(const std::string &InterfaceName, Module* Mod)
-{
-       interfacelist::iterator iter = Interfaces.find(InterfaceName);
+       dynamic_reference_base::reset_all();
 
-       if (iter == Interfaces.end())
-               return false;
+       /* Tidy up any dangling resolvers */
+       ServerInstance->Res->CleanResolvers(mod);
 
-       for (modulelist::iterator x = iter->second.second.begin(); x != iter->second.second.end(); x++)
-       {
-               if (*x == Mod)
-               {
-                       iter->second.second.erase(x);
-                       if (iter->second.second.empty())
-                               Interfaces.erase(InterfaceName);
-                       return true;
-               }
-       }
-       return false;
+       FOREACH_MOD(I_OnUnloadModule,OnUnloadModule(mod));
+
+       DetachAll(mod);
+
+       Modules.erase(modfind);
+       ServerInstance->GlobalCulls.AddItem(mod);
+
+       ServerInstance->Logs->Log("MODULE", DEFAULT,"Module %s unloaded",mod->ModuleSourceFile.c_str());
+       this->ModCount--;
+       ServerInstance->BuildISupport();
 }
 
-modulelist* ModuleManager::FindInterface(const std::string &InterfaceName)
+std::string& ModuleManager::LastError()
 {
-       interfacelist::iterator iter = Interfaces.find(InterfaceName);
-       if (iter == Interfaces.end())
-               return NULL;
-       else
-               return &(iter->second.second);
+       return LastModuleError;
 }
 
-bool ModuleManager::ModuleHasInterface(Module* mod, const std::string& InterfaceName)
+CmdResult InspIRCd::CallCommandHandler(const std::string &commandname, const std::vector<std::string>& parameters, User* user)
 {
-       interfacelist::iterator iter = Interfaces.find(InterfaceName);
-       if (iter == Interfaces.end())
-               return false;
-       else
-       {
-               modulelist& ml = iter->second.second;
-               modulelist::iterator mi = std::find(ml.begin(), ml.end(), mod);
-               return (mi != ml.end());
-       }
+       return this->Parser->CallHandler(commandname, parameters, user);
 }
 
-void ModuleManager::UseInterface(const std::string &InterfaceName)
+bool InspIRCd::IsValidModuleCommand(const std::string &commandname, int pcnt, User* user)
 {
-       interfacelist::iterator iter = Interfaces.find(InterfaceName);
-       if (iter != Interfaces.end())
-               iter->second.first++;
-
+       return this->Parser->IsValidCommand(commandname, pcnt, user);
 }
 
-void ModuleManager::DoneWithInterface(const std::string &InterfaceName)
+void ModuleManager::AddService(ServiceProvider& item)
 {
-       interfacelist::iterator iter = Interfaces.find(InterfaceName);
-       if (iter != Interfaces.end())
-               iter->second.first--;
+       Module* owner = item.creator;
+       if (Modules.find(owner->ModuleSourceFile) == Modules.end())
+               ServerInstance->Logs->Log("MODULE", DEFAULT, "Module is registering item %s in constructor; this does not handle exceptions correctly!", item.name.c_str());
+
+       switch (item.service)
+       {
+               case SERVICE_COMMAND:
+                       if (!ServerInstance->Parser->AddCommand(static_cast<Command*>(&item)))
+                               throw ModuleException("Command "+std::string(item.name)+" already exists.");
+                       return;
+               case SERVICE_MODE:
+                       if (!ServerInstance->Modes->AddMode(static_cast<ModeHandler*>(&item)))
+                               throw ModuleException("Mode "+std::string(item.name)+" already exists.");
+                       return;
+               case SERVICE_METADATA:
+                       ServerInstance->Extensions.Register(static_cast<ExtensionItem*>(&item));
+                       return;
+               case SERVICE_DATA:
+               case SERVICE_IOHOOK:
+               {
+                       DataProviders.insert(std::make_pair(item.name, &item));
+                       std::string::size_type slash = item.name.find('/');
+                       if (slash != std::string::npos)
+                       {
+                               DataProviders.insert(std::make_pair(item.name.substr(0, slash), &item));
+                               DataProviders.insert(std::make_pair(item.name.substr(slash + 1), &item));
+                       }
+                       return;
+               }
+               default:
+                       throw ModuleException("Cannot add unknown service type");
+       }
 }
 
-std::pair<int,std::string> ModuleManager::GetInterfaceInstanceCount(Module* m)
+void ModuleManager::DelService(ServiceProvider& item)
 {
-       for (interfacelist::iterator iter = Interfaces.begin(); iter != Interfaces.end(); iter++)
+       switch (item.service)
        {
-               for (modulelist::iterator x = iter->second.second.begin(); x != iter->second.second.end(); x++)
+               case SERVICE_MODE:
+                       if (!ServerInstance->Modes->DelMode(static_cast<ModeHandler*>(&item)))
+                               throw ModuleException("Mode "+std::string(item.name)+" does not exist.");
+                       return;
+               case SERVICE_DATA:
+               case SERVICE_IOHOOK:
                {
-                       if (*x == m)
+                       for(std::multimap<std::string, ServiceProvider*>::iterator i = DataProviders.begin(); i != DataProviders.end(); )
                        {
-                               return std::make_pair(iter->second.first, iter->first);
+                               std::multimap<std::string, ServiceProvider*>::iterator curr = i++;
+                               if (curr->second == &item)
+                                       DataProviders.erase(curr);
                        }
+                       dynamic_reference_base::reset_all();
+                       return;
                }
+               default:
+                       throw ModuleException("Cannot delete unknown service type");
        }
-       return std::make_pair(0, "");
 }
 
-const std::string& ModuleManager::GetModuleName(Module* m)
+ServiceProvider* ModuleManager::FindService(ServiceType type, const std::string& name)
 {
-       static std::string nothing;
-
-       for (std::map<std::string, Module*>::iterator n = Modules.begin(); n != Modules.end(); ++n)
+       switch (type)
        {
-               if (n->second == m)
-                       return n->first;
+               case SERVICE_DATA:
+               case SERVICE_IOHOOK:
+               {
+                       std::multimap<std::string, ServiceProvider*>::iterator i = DataProviders.find(name);
+                       if (i != DataProviders.end() && i->second->service == type)
+                               return i->second;
+                       return NULL;
+               }
+               // TODO implement finding of the other types
+               default:
+                       throw ModuleException("Cannot find unknown service type");
        }
+}
 
-       return nothing;
+dynamic_reference_base::dynamic_reference_base(Module* Creator, const std::string& Name)
+       : name(Name), value(NULL), creator(Creator)
+{
+       if (!dynrefs)
+               dynrefs = new std::vector<dynamic_reference_base*>;
+       dynrefs->push_back(this);
 }
 
-CmdResult InspIRCd::CallCommandHandler(const std::string &commandname, const std::vector<std::string>& parameters, User* user)
+dynamic_reference_base::~dynamic_reference_base()
 {
-       return this->Parser->CallHandler(commandname, parameters, user);
+       for(unsigned int i = 0; i < dynrefs->size(); i++)
+       {
+               if (dynrefs->at(i) == this)
+               {
+                       unsigned int last = dynrefs->size() - 1;
+                       if (i != last)
+                               dynrefs->at(i) = dynrefs->at(last);
+                       dynrefs->erase(dynrefs->begin() + last);
+                       if (dynrefs->empty())
+                       {
+                               delete dynrefs;
+                               dynrefs = NULL;
+                       }
+                       return;
+               }
+       }
 }
 
-bool InspIRCd::IsValidModuleCommand(const std::string &commandname, int pcnt, User* user)
+void dynamic_reference_base::SetProvider(const std::string& newname)
 {
-       return this->Parser->IsValidCommand(commandname, pcnt, user);
+       name = newname;
+       ClearCache();
 }
 
-void InspIRCd::AddCommand(Command *f)
+void dynamic_reference_base::lookup()
 {
-       if (!this->Parser->AddCommand(f))
-       {
-               throw ModuleException("Command "+std::string(f->name)+" already exists.");
-       }
+       if (!*this)
+               throw ModuleException("Dynamic reference to '" + name + "' failed to resolve");
 }
 
-void InspIRCd::AddService(providerbase& item)
+dynamic_reference_base::operator bool()
 {
-       switch (item.service)
+       if (!value)
        {
-               case SERVICE_COMMAND:
-                       if (!Parser->AddCommand(static_cast<Command*>(&item)))
-                               throw ModuleException("Command "+std::string(item.name)+" already exists.");
-                       return;
-               case SERVICE_CMODE:
-               case SERVICE_UMODE:
-                       if (!Modes->AddMode(static_cast<ModeHandler*>(&item)))
-                               throw ModuleException("Mode "+std::string(item.name)+" already exists.");
-                       return;
-               case SERVICE_METADATA:
-                       Extensions.Register(static_cast<ExtensionItem*>(&item));
-                       return;
-               case SERVICE_DATA:
-               case SERVICE_IOHOOK:
-               default:
-                       throw ModuleException("Cannot add unknown service type");
+               std::multimap<std::string, ServiceProvider*>::iterator i = ServerInstance->Modules->DataProviders.find(name);
+               if (i != ServerInstance->Modules->DataProviders.end())
+                       value = static_cast<DataProvider*>(i->second);
        }
+       return value;
 }
 
 void InspIRCd::SendMode(const std::vector<std::string>& parameters, User *user)
@@ -501,6 +545,14 @@ void InspIRCd::SendMode(const std::vector<std::string>& parameters, User *user)
        this->Modes->Process(parameters, user);
 }
 
+
+void InspIRCd::SendGlobalMode(const std::vector<std::string>& parameters, User *user)
+{
+       Modes->Process(parameters, user);
+       if (!Modes->GetLastParse().empty())
+               this->PI->SendMode(parameters[0], Modes->GetLastParseParams(), Modes->GetLastParseTranslate());
+}
+
 bool InspIRCd::AddResolver(Resolver* r, bool cached)
 {
        if (!cached)
@@ -535,6 +587,8 @@ const std::vector<std::string> ModuleManager::GetAllModuleNames(int filter)
 ConfigReader::ConfigReader()
 {
        this->error = 0;
+       ServerInstance->Logs->Log("MODULE", DEBUG, "ConfigReader is deprecated in 2.0; "
+               "use ServerInstance->Config->ConfValue(\"key\") or ->ConfTags(\"key\") instead");
 }
 
 
@@ -652,13 +706,27 @@ void FileReader::CalcSize()
 
 void FileReader::LoadFile(const std::string &filename)
 {
-       file_cache c;
-       c.clear();
-       if (ServerInstance->Config->ReadFile(c,filename.c_str()))
+       std::map<std::string, file_cache>::iterator file = ServerInstance->Config->Files.find(filename);
+       if (file != ServerInstance->Config->Files.end())
+       {
+               this->fc = file->second;
+       }
+       else
        {
-               this->fc = c;
-               this->CalcSize();
+               fc.clear();
+               FILE* f = fopen(filename.c_str(), "r");
+               if (!f)
+                       return;
+               char linebuf[MAXBUF*10];
+               while (fgets(linebuf, sizeof(linebuf), f))
+               {
+                       int len = strlen(linebuf);
+                       if (len)
+                               fc.push_back(std::string(linebuf, len - 1));
+               }
+               fclose(f);
        }
+       CalcSize();
 }