]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/modules/extra/m_pgsql.cpp
Fix a bunch of weird indentation and spacing issues.
[user/henk/code/inspircd.git] / src / modules / extra / m_pgsql.cpp
index 72c1077257cf08a04c454b7a4c106435bda4e137..e1db996c896d918867bd8677b6190a174df03daa 100644 (file)
-/*       +------------------------------------+
- *       | Inspire Internet Relay Chat Daemon |
- *       +------------------------------------+
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
  *
- *  InspIRCd: (C) 2002-2007 InspIRCd Development Team
- * See: http://www.inspircd.org/wiki/index.php/Credits
+ *   Copyright (C) 2016 Adam <Adam@anope.org>
+ *   Copyright (C) 2015 Daniel Vassdal <shutter@canternet.org>
+ *   Copyright (C) 2013, 2016-2020 Sadie Powell <sadie@witchery.services>
+ *   Copyright (C) 2012-2015 Attila Molnar <attilamolnar@hush.com>
+ *   Copyright (C) 2012 Robby <robby@chatbelgie.be>
+ *   Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
+ *   Copyright (C) 2009 Uli Schlachter <psychon@inspircd.org>
+ *   Copyright (C) 2008 Thomas Stagner <aquanight@inspircd.org>
+ *   Copyright (C) 2007, 2009-2010 Craig Edwards <brain@inspircd.org>
+ *   Copyright (C) 2007, 2009 Dennis Friis <peavey@inspircd.org>
+ *   Copyright (C) 2007 Robin Burchell <robin+git@viroteck.net>
+ *   Copyright (C) 2006 Oliver Lupton <om@inspircd.org>
  *
- * This program is free but copyrighted software; see
- *            the file COPYING for details.
+ * This file is part of InspIRCd.  InspIRCd is free software: you can
+ * redistribute it and/or modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation, version 2.
  *
- * ---------------------------------------------------
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <cstdlib>
-#include <sstream>
-#include <string>
-#include <deque>
-#include <map>
-#include <libpq-fe.h>
+/// $CompilerFlags: -Iexecute("pg_config --includedir" "POSTGRESQL_INCLUDE_DIR")
+/// $LinkerFlags: -Lexecute("pg_config --libdir" "POSTGRESQL_LIBRARY_DIR") -lpq
+
+/// $PackageInfo: require_system("arch") postgresql-libs
+/// $PackageInfo: require_system("centos") postgresql-devel
+/// $PackageInfo: require_system("darwin") postgresql
+/// $PackageInfo: require_system("debian") libpq-dev
+/// $PackageInfo: require_system("ubuntu") libpq-dev
 
-#include "users.h"
-#include "channels.h"
-#include "modules.h"
 
 #include "inspircd.h"
-#include "configreader.h"
-
-#include "m_sqlv2.h"
-
-/* $ModDesc: PostgreSQL Service Provider module for all other m_sql* modules, uses v2 of the SQL API */
-/* $CompileFlags: -I`pg_config --includedir` `perl extra/pgsql_config.pl` */
-/* $LinkerFlags: -L`pg_config --libdir` -lpq */
-/* $ModDep: m_sqlv2.h */
-
-/* UGH, UGH, UGH, UGH, UGH, UGH
- * I'm having trouble seeing how I
- * can avoid this. The core-defined
- * constructors for InspSocket just
- * aren't suitable...and if I'm
- * reimplementing them I need this so
- * I can access the socket engine :\
+#include <cstdlib>
+#include <libpq-fe.h>
+#include "modules/sql.h"
+
+/* SQLConn rewritten by peavey to
+ * use EventHandler instead of
+ * BufferedSocket. This is much neater
+ * and gives total control of destroy
+ * and delete of resources.
  */
 
 /* Forward declare, so we can have the typedef neatly at the top */
 class SQLConn;
+class ModulePgSQL;
 
-typedef std::map<std::string, SQLConn*> ConnMap;
+typedef insp::flat_map<std::string, SQLConn*> ConnMap;
 
-/* CREAD,      Connecting and wants read event
- * CWRITE,     Connecting and wants write event
- * WREAD,      Connected/Working and wants read event
- * WWRITE,     Connected/Working and wants write event
- * RREAD,      Resetting and wants read event
- * RWRITE,     Resetting and wants write event
- */
-enum SQLstatus { CREAD, CWRITE, WREAD, WWRITE, RREAD, RWRITE };
-
-/** SQLhost::GetDSN() - Overload to return correct DSN for PostgreSQL
- */
-std::string SQLhost::GetDSN()
+enum SQLstatus
 {
-       std::ostringstream conninfo("connect_timeout = '2'");
-
-       if (ip.length())
-               conninfo << " hostaddr = '" << ip << "'";
-
-       if (port)
-               conninfo << " port = '" << port << "'";
+       // The connection has died.
+       DEAD,
 
-       if (name.length())
-               conninfo << " dbname = '" << name << "'";
+       // Connecting and wants read event.
+       CREAD,
 
-       if (user.length())
-               conninfo << " user = '" << user << "'";
+       // Connecting and wants write event.
+       CWRITE,
 
-       if (pass.length())
-               conninfo << " password = '" << pass << "'";
+       // Connected/working and wants read event.
+       WREAD,
 
-       if (ssl)
-               conninfo << " sslmode = 'require'";
-
-       return conninfo.str();
-}
+       // Connected/working and wants write event.
+       WWRITE
+};
 
-/** Used to resolve sql server hostnames
- */
-class SQLresolver : public Resolver
+class ReconnectTimer : public Timer
 {
  private:
-       SQLhost host;
-       Module* mod;
+       ModulePgSQL* mod;
  public:
-       SQLresolver(Module* m, InspIRCd* Instance, const SQLhost& hi, bool &cached)
-       : Resolver(Instance, hi.host, DNS_QUERY_FORWARD, cached, (Module*)m), host(hi), mod(m)
+       ReconnectTimer(ModulePgSQL* m) : Timer(5, false), mod(m)
        {
        }
-
-       virtual void OnLookupComplete(const std::string &result, unsigned int ttl, bool cached);
-
-       virtual void OnError(ResolverError e, const std::string &errormessage)
-       {
-               ServerInstance->Log(DEBUG, "DNS lookup failed (%s), dying horribly", errormessage.c_str());
-       }
+       bool Tick(time_t TIME) CXX11_OVERRIDE;
 };
 
-/** QueryQueue, a queue of queries waiting to be executed.
- * This maintains two queues internally, one for 'priority'
- * queries and one for less important ones. Each queue has
- * new queries appended to it and ones to execute are popped
- * off the front. This keeps them flowing round nicely and no
- * query should ever get 'stuck' for too long. If there are
- * queries in the priority queue they will be executed first,
- * 'unimportant' queries will only be executed when the
- * priority queue is empty.
- *
- * We store lists of SQLrequest's here, by value as we want to avoid storing
- * any data allocated inside the client module (in case that module is unloaded
- * while the query is in progress).
- *
- * Because we want to work on the current SQLrequest in-situ, we need a way
- * of accessing the request we are currently processing, QueryQueue::front(),
- * but that call needs to always return the same request until that request
- * is removed from the queue, this is what the 'which' variable is. New queries are
- * always added to the back of one of the two queues, but if when front()
- * is first called then the priority queue is empty then front() will return
- * a query from the normal queue, but if a query is then added to the priority
- * queue then front() must continue to return the front of the *normal* queue
- * until pop() is called.
- */
-
-class QueryQueue : public classbase
+struct QueueItem
 {
-private:
-       typedef std::deque<SQLrequest> ReqDeque;
-
-       ReqDeque priority;      /* The priority queue */
-       ReqDeque normal;        /* The 'normal' queue */
-       enum { PRI, NOR, NON } which;   /* Which queue the currently active element is at the front of */
-
-public:
-       QueryQueue()
-       : which(NON)
-       {
-       }
-
-       void push(const SQLrequest &q)
-       {
-               //ServerInstance->Log(DEBUG, "QueryQueue::push(): Adding %s query to queue: %s", ((q.pri) ? "priority" : "non-priority"), q.query.q.c_str());
-
-               if(q.pri)
-                       priority.push_back(q);
-               else
-                       normal.push_back(q);
-       }
-
-       void pop()
-       {
-               if((which == PRI) && priority.size())
-               {
-                       priority.pop_front();
-               }
-               else if((which == NOR) && normal.size())
-               {
-                       normal.pop_front();
-               }
-
-               /* Reset this */
-               which = NON;
-
-               /* Silently do nothing if there was no element to pop() */
-       }
-
-       SQLrequest& front()
-       {
-               switch(which)
-               {
-                       case PRI:
-                               return priority.front();
-                       case NOR:
-                               return normal.front();
-                       default:
-                               if(priority.size())
-                               {
-                                       which = PRI;
-                                       return priority.front();
-                               }
-
-                               if(normal.size())
-                               {
-                                       which = NOR;
-                                       return normal.front();
-                               }
-
-                               /* This will probably result in a segfault,
-                                * but the caller should have checked totalsize()
-                                * first so..meh - moron :p
-                                */
-
-                               return priority.front();
-               }
-       }
-
-       std::pair<int, int> size()
-       {
-               return std::make_pair(priority.size(), normal.size());
-       }
-
-       int totalsize()
-       {
-               return priority.size() + normal.size();
-       }
-
-       void PurgeModule(Module* mod)
-       {
-               DoPurgeModule(mod, priority);
-               DoPurgeModule(mod, normal);
-       }
-
-private:
-       void DoPurgeModule(Module* mod, ReqDeque& q)
-       {
-               for(ReqDeque::iterator iter = q.begin(); iter != q.end(); iter++)
-               {
-                       if(iter->GetSource() == mod)
-                       {
-                               if(iter->id == front().id)
-                               {
-                                       /* It's the currently active query.. :x */
-                                       iter->SetSource(NULL);
-                               }
-                               else
-                               {
-                                       /* It hasn't been executed yet..just remove it */
-                                       iter = q.erase(iter);
-                               }
-                       }
-               }
-       }
+       SQL::Query* c;
+       std::string q;
+       QueueItem(SQL::Query* C, const std::string& Q) : c(C), q(Q) {}
 };
 
 /** PgSQLresult is a subclass of the mostly-pure-virtual class SQLresult.
@@ -245,1051 +98,549 @@ private:
  * data is passes to the module nearly as directly as if it was using the API directly itself.
  */
 
-class PgSQLresult : public SQLresult
+class PgSQLresult : public SQL::Result
 {
        PGresult* res;
        int currentrow;
        int rows;
-       int cols;
+       std::vector<std::string> colnames;
 
-       SQLfieldList* fieldlist;
-       SQLfieldMap* fieldmap;
-public:
-       PgSQLresult(Module* self, Module* to, unsigned long id, PGresult* result)
-       : SQLresult(self, to, id), res(result), currentrow(0), fieldlist(NULL), fieldmap(NULL)
+       void getColNames()
+       {
+               colnames.resize(PQnfields(res));
+               for(unsigned int i=0; i < colnames.size(); i++)
+               {
+                       colnames[i] = PQfname(res, i);
+               }
+       }
+ public:
+       PgSQLresult(PGresult* result) : res(result), currentrow(0)
        {
                rows = PQntuples(res);
-               cols = PQnfields(res);
-
-               //ServerInstance->Log(DEBUG, "Created new PgSQL result; %d rows, %d columns, %s affected", rows, cols, PQcmdTuples(res));
+               if (!rows)
+                       rows = ConvToNum<int>(PQcmdTuples(res));
        }
 
        ~PgSQLresult()
        {
-               /* If we allocated these, free them... */
-               if(fieldlist)
-                       DELETE(fieldlist);
-
-               if(fieldmap)
-                       DELETE(fieldmap);
-
                PQclear(res);
        }
 
-       virtual int Rows()
+       int Rows() CXX11_OVERRIDE
        {
-               if(!cols && !rows)
-               {
-                       return atoi(PQcmdTuples(res));
-               }
-               else
-               {
-                       return rows;
-               }
+               return rows;
        }
 
-       virtual int Cols()
+       void GetCols(std::vector<std::string>& result) CXX11_OVERRIDE
        {
-               return PQnfields(res);
-       }
-
-       virtual std::string ColName(int column)
-       {
-               char* name = PQfname(res, column);
-
-               return (name) ? name : "";
+               if (colnames.empty())
+                       getColNames();
+               result = colnames;
        }
 
-       virtual int ColNum(const std::string &column)
+       bool HasColumn(const std::string& column, size_t& index) CXX11_OVERRIDE
        {
-               int n = PQfnumber(res, column.c_str());
+               if (colnames.empty())
+                       getColNames();
 
-               if(n == -1)
+               for (size_t i = 0; i < colnames.size(); ++i)
                {
-                       throw SQLbadColName();
-               }
-               else
-               {
-                       return n;
+                       if (colnames[i] == column)
+                       {
+                               index = i;
+                               return true;
+                       }
                }
+               return false;
        }
 
-       virtual SQLfield GetValue(int row, int column)
+       SQL::Field GetValue(int row, int column)
        {
                char* v = PQgetvalue(res, row, column);
+               if (!v || PQgetisnull(res, row, column))
+                       return SQL::Field();
 
-               if(v)
-               {
-                       return SQLfield(std::string(v, PQgetlength(res, row, column)), PQgetisnull(res, row, column));
-               }
-               else
-               {
-                       //ServerInstance->Log(DEBUG, "PQgetvalue returned a null pointer..nobody wants to tell us what this means");
-                       throw SQLbadColName();
-               }
+               return SQL::Field(std::string(v, PQgetlength(res, row, column)));
        }
 
-       virtual SQLfieldList& GetRow()
+       bool GetRow(SQL::Row& result) CXX11_OVERRIDE
        {
-               /* In an effort to reduce overhead we don't actually allocate the list
-                * until the first time it's needed...so...
-                */
-               if(fieldlist)
-               {
-                       fieldlist->clear();
-               }
-               else
+               if (currentrow >= PQntuples(res))
+                       return false;
+               int ncols = PQnfields(res);
+
+               for(int i = 0; i < ncols; i++)
                {
-                       fieldlist = new SQLfieldList;
+                       result.push_back(GetValue(currentrow, i));
                }
+               currentrow++;
 
-               if(currentrow < PQntuples(res))
-               {
-                       int cols = PQnfields(res);
+               return true;
+       }
+};
 
-                       for(int i = 0; i < cols; i++)
-                       {
-                               fieldlist->push_back(GetValue(currentrow, i));
-                       }
+/** SQLConn represents one SQL session.
+ */
+class SQLConn : public SQL::Provider, public EventHandler
+{
+ public:
+       reference<ConfigTag> conf;      /* The <database> entry */
+       std::deque<QueueItem> queue;
+       PGconn*                 sql;            /* PgSQL database connection handle */
+       SQLstatus               status;         /* PgSQL database connection status */
+       QueueItem               qinprog;        /* If there is currently a query in progress */
 
-                       currentrow++;
-               }
+       SQLConn(Module* Creator, ConfigTag* tag)
+               : SQL::Provider(Creator, tag->getString("id"))
+               , conf(tag)
+               , sql(NULL)
+               , status(CWRITE)
+               , qinprog(NULL, "")
+       {
+               if (!DoConnect())
+                       DelayReconnect();
+       }
 
-               return *fieldlist;
+       CullResult cull() CXX11_OVERRIDE
+       {
+               this->SQL::Provider::cull();
+               ServerInstance->Modules->DelService(*this);
+               return this->EventHandler::cull();
        }
 
-       virtual SQLfieldMap& GetRowMap()
+       ~SQLConn()
        {
-               /* In an effort to reduce overhead we don't actually allocate the map
-                * until the first time it's needed...so...
-                */
-               if(fieldmap)
+               SQL::Error err(SQL::BAD_DBID);
+               if (qinprog.c)
                {
-                       fieldmap->clear();
+                       qinprog.c->OnError(err);
+                       delete qinprog.c;
                }
-               else
+               for(std::deque<QueueItem>::iterator i = queue.begin(); i != queue.end(); i++)
                {
-                       fieldmap = new SQLfieldMap;
+                       SQL::Query* q = i->c;
+                       q->OnError(err);
+                       delete q;
                }
-
-               if(currentrow < PQntuples(res))
-               {
-                       int cols = PQnfields(res);
-
-                       for(int i = 0; i < cols; i++)
-                       {
-                               fieldmap->insert(std::make_pair(ColName(i), GetValue(currentrow, i)));
-                       }
-
-                       currentrow++;
-               }
-
-               return *fieldmap;
+               Close();
        }
 
-       virtual SQLfieldList* GetRowPtr()
+       void OnEventHandlerRead() CXX11_OVERRIDE
        {
-               SQLfieldList* fl = new SQLfieldList;
-
-               if(currentrow < PQntuples(res))
-               {
-                       int cols = PQnfields(res);
-
-                       for(int i = 0; i < cols; i++)
-                       {
-                               fl->push_back(GetValue(currentrow, i));
-                       }
-
-                       currentrow++;
-               }
-
-               return fl;
+               DoEvent();
        }
 
-       virtual SQLfieldMap* GetRowMapPtr()
+       void OnEventHandlerWrite() CXX11_OVERRIDE
        {
-               SQLfieldMap* fm = new SQLfieldMap;
-
-               if(currentrow < PQntuples(res))
-               {
-                       int cols = PQnfields(res);
-
-                       for(int i = 0; i < cols; i++)
-                       {
-                               fm->insert(std::make_pair(ColName(i), GetValue(currentrow, i)));
-                       }
-
-                       currentrow++;
-               }
-
-               return fm;
+               DoEvent();
        }
 
-       virtual void Free(SQLfieldMap* fm)
+       void OnEventHandlerError(int errornum) CXX11_OVERRIDE
        {
-               DELETE(fm);
+               DelayReconnect();
        }
 
-       virtual void Free(SQLfieldList* fl)
+       std::string GetDSN()
        {
-               DELETE(fl);
-       }
-};
-
-/** SQLConn represents one SQL session.
- * Each session has its own persistent connection to the database.
- * This is a subclass of InspSocket so it can easily recieve read/write events from the core socket
- * engine, unlike the original MySQL module this module does not block. Ever. It gets a mild stabbing
- * if it dares to.
- */
-
-class SQLConn : public InspSocket
-{
-private:
-       SQLhost                 confhost;       /* The <database> entry */
-       Module*                 us;                     /* Pointer to the SQL provider itself */
-       PGconn*                 sql;            /* PgSQL database connection handle */
-       SQLstatus               status;         /* PgSQL database connection status */
-       bool                    qinprog;        /* If there is currently a query in progress */
-       QueryQueue              queue;          /* Queue of queries waiting to be executed on this connection */
-       time_t                  idle;           /* Time we last heard from the database */
-public:
-
-       /* This class should only ever be created inside this module, using this constructor, so we don't have to worry about the default ones */
-
-       SQLConn(InspIRCd* SI, Module* self, const SQLhost& hostinfo);
-
-       ~SQLConn();
-
-       bool DoConnect();
-
-       virtual void Close();
-
-       void DoClose();
-
-       bool DoPoll();
-
-       bool DoConnectedPoll();
-
-       bool DoResetPoll();
-
-       void ShowStatus();
-
-       virtual bool OnDataReady();
-
-       virtual bool OnWriteReady();
-
-       virtual bool OnConnected();
-
-       bool DoEvent();
+               std::ostringstream conninfo("connect_timeout = '5'");
+               std::string item;
 
-       bool Reconnect();
+               if (conf->readString("host", item))
+                       conninfo << " host = '" << item << "'";
 
-       const char* StatusStr();
+               if (conf->readString("port", item))
+                       conninfo << " port = '" << item << "'";
 
-       SQLerror DoQuery(SQLrequest &req);
+               if (conf->readString("name", item))
+                       conninfo << " dbname = '" << item << "'";
 
-       SQLerror Query(const SQLrequest &req);
+               if (conf->readString("user", item))
+                       conninfo << " user = '" << item << "'";
 
-       void OnUnloadModule(Module* mod);
+               if (conf->readString("pass", item))
+                       conninfo << " password = '" << item << "'";
 
-       const SQLhost GetConfHost();
-};
-
-SQLConn::SQLConn(InspIRCd* SI, Module* self, const SQLhost& hi)
-: InspSocket::InspSocket(SI), confhost(hi), us(self), sql(NULL), status(CWRITE), qinprog(false)
-{
-       idle = this->Instance->Time();
-       this->ClosePending = false;
+               if (conf->getBool("ssl"))
+                       conninfo << " sslmode = 'require'";
+               else
+                       conninfo << " sslmode = 'disable'";
 
-       if(!this->DoConnect())
-       {
-               Instance->Log(DEFAULT, "WARNING: Could not connect to database with id: " + ConvToStr(hi.id));
+               return conninfo.str();
        }
-}
 
-SQLConn::~SQLConn()
-{
-       DoClose();
-}
-
-bool SQLConn::DoConnect()
-{
-       if(!(sql = PQconnectStart(confhost.GetDSN().c_str())))
+       bool HandleConnectError(const char* reason)
        {
-               Instance->Log(DEBUG, "Couldn't allocate PGconn structure, aborting: %s", PQerrorMessage(sql));
-               DoClose();
+               ServerInstance->Logs->Log(MODNAME, LOG_DEFAULT, "Could not connect to the \"%s\" database: %s",
+                       GetId().c_str(), reason);
                return false;
        }
 
-       if(PQstatus(sql) == CONNECTION_BAD)
+       bool DoConnect()
        {
-               Instance->Log(DEBUG, "PQconnectStart failed: %s", PQerrorMessage(sql));
-               DoClose();
-               return false;
-       }
+               sql = PQconnectStart(GetDSN().c_str());
+               if (!sql)
+                       return HandleConnectError("PQconnectStart returned NULL");
 
-       ShowStatus();
+               if(PQstatus(sql) == CONNECTION_BAD)
+                       return HandleConnectError("connection status is bad");
 
-       if(PQsetnonblocking(sql, 1) == -1)
-       {
-               Instance->Log(DEBUG, "Couldn't set connection nonblocking: %s", PQerrorMessage(sql));
-               DoClose();
-               return false;
-       }
+               if(PQsetnonblocking(sql, 1) == -1)
+                       return HandleConnectError("unable to mark fd as non-blocking");
 
-       /* OK, we've initalised the connection, now to get it hooked into the socket engine
-        * and then start polling it.
-        */
+               /* OK, we've initialised the connection, now to get it hooked into the socket engine
+               * and then start polling it.
+               */
+               SetFd(PQsocket(sql));
+               if(!HasFd())
+                       return HandleConnectError("PQsocket returned an invalid fd");
 
-       //ServerInstance->Log(DEBUG, "Old DNS socket: %d", this->fd);
-       this->fd = PQsocket(sql);
-       Instance->Log(DEBUG, "New SQL socket: %d", this->fd);
+               if (!SocketEngine::AddFd(this, FD_WANT_NO_WRITE | FD_WANT_NO_READ))
+                       return HandleConnectError("could not add the pgsql socket to the socket engine");
 
-       if(this->fd <= -1)
-       {
-               Instance->Log(DEBUG, "PQsocket says we have an invalid FD: %d", this->fd);
-               DoClose();
-               return false;
-       }
-
-       this->state = I_CONNECTING;
-       if (!this->Instance->SE->AddFd(this))
-       {
-               Instance->Log(DEBUG, "A PQsocket cant be added to the socket engine!");
-               DoClose();
-               return false;
-       }
+               /* Socket all hooked into the engine, now to tell PgSQL to start connecting */
+               if (!DoPoll())
+                       return HandleConnectError("could not poll the connection state");
 
-       /* Socket all hooked into the engine, now to tell PgSQL to start connecting */
-
-       return DoPoll();
-}
-
-void SQLConn::Close() {
-       DoClose();
-}
-
-bool SQLConn::DoPoll()
-{
-       switch(PQconnectPoll(sql))
-       {
-               case PGRES_POLLING_WRITING:
-                       //ServerInstance->Log(DEBUG, "PGconnectPoll: PGRES_POLLING_WRITING");
-                       WantWrite();
-                       status = CWRITE;
-                       return DoPoll();
-               case PGRES_POLLING_READING:
-                       //ServerInstance->Log(DEBUG, "PGconnectPoll: PGRES_POLLING_READING");
-                       status = CREAD;
-                       return true;
-               case PGRES_POLLING_FAILED:
-                       //ServerInstance->Log(DEBUG, "PGconnectPoll: PGRES_POLLING_FAILED: %s", PQerrorMessage(sql));
-                       return false;
-               case PGRES_POLLING_OK:
-                       //ServerInstance->Log(DEBUG, "PGconnectPoll: PGRES_POLLING_OK");
-                       status = WWRITE;
-                       return DoConnectedPoll();
-               default:
-                       //ServerInstance->Log(DEBUG, "PGconnectPoll: wtf?");
-                       return true;
+               return true;
        }
-}
 
-bool SQLConn::DoConnectedPoll()
-{
-       if(!qinprog && queue.totalsize())
+       bool DoPoll()
        {
-               /* There's no query currently in progress, and there's queries in the queue. */
-               SQLrequest& query = queue.front();
-               DoQuery(query);
+               switch(PQconnectPoll(sql))
+               {
+                       case PGRES_POLLING_WRITING:
+                               SocketEngine::ChangeEventMask(this, FD_WANT_POLL_WRITE | FD_WANT_NO_READ);
+                               status = CWRITE;
+                               return true;
+                       case PGRES_POLLING_READING:
+                               SocketEngine::ChangeEventMask(this, FD_WANT_POLL_READ | FD_WANT_NO_WRITE);
+                               status = CREAD;
+                               return true;
+                       case PGRES_POLLING_FAILED:
+                               SocketEngine::ChangeEventMask(this, FD_WANT_NO_READ | FD_WANT_NO_WRITE);
+                               status = DEAD;
+                               return false;
+                       case PGRES_POLLING_OK:
+                               SocketEngine::ChangeEventMask(this, FD_WANT_POLL_READ | FD_WANT_NO_WRITE);
+                               status = WWRITE;
+                               DoConnectedPoll();
+                               return true;
+                       default:
+                               return true;
+               }
        }
 
-       if(PQconsumeInput(sql))
+       void DoConnectedPoll()
        {
-               Instance->Log(DEBUG, "PQconsumeInput succeeded");
-
-               /* We just read stuff from the server, that counts as it being alive
-                * so update the idle-since time :p
-                */
-               idle = this->Instance->Time();
-
-               if(PQisBusy(sql))
+restart:
+               while (qinprog.q.empty() && !queue.empty())
                {
-                       //ServerInstance->Log(DEBUG, "Still busy processing command though");
+                       /* There's no query currently in progress, and there's queries in the queue. */
+                       DoQuery(queue.front());
+                       queue.pop_front();
                }
-               else if(qinprog)
-               {
-                       //ServerInstance->Log(DEBUG, "Looks like we have a result to process!");
 
-                       /* Grab the request we're processing */
-                       SQLrequest& query = queue.front();
-
-                       Instance->Log(DEBUG, "ID is %lu", query.id);
-
-                       /* Get a pointer to the module we're about to return the result to */
-                       Module* to = query.GetSource();
-
-                       /* Fetch the result.. */
-                       PGresult* result = PQgetResult(sql);
-
-                       /* PgSQL would allow a query string to be sent which has multiple
-                        * queries in it, this isn't portable across database backends and
-                        * we don't want modules doing it. But just in case we make sure we
-                        * drain any results there are and just use the last one.
-                        * If the module devs are behaving there will only be one result.
-                        */
-                       while (PGresult* temp = PQgetResult(sql))
+               if (PQconsumeInput(sql))
+               {
+                       if (PQisBusy(sql))
                        {
-                               PQclear(result);
-                               result = temp;
+                               /* Nothing happens here */
                        }
-
-                       if(to)
+                       else if (qinprog.c)
                        {
-                               /* ..and the result */
-                               PgSQLresult reply(us, to, query.id, result);
-
-                               /* Fix by brain, make sure the original query gets sent back in the reply */
-                               reply.query = query.query.q;
-
-                               Instance->Log(DEBUG, "Got result, status code: %s; error message: %s", PQresStatus(PQresultStatus(result)), PQresultErrorMessage(result));
+                               /* Fetch the result.. */
+                               PGresult* result = PQgetResult(sql);
+
+                               /* PgSQL would allow a query string to be sent which has multiple
+                                * queries in it, this isn't portable across database backends and
+                                * we don't want modules doing it. But just in case we make sure we
+                                * drain any results there are and just use the last one.
+                                * If the module devs are behaving there will only be one result.
+                                */
+                               while (PGresult* temp = PQgetResult(sql))
+                               {
+                                       PQclear(result);
+                                       result = temp;
+                               }
 
+                               /* ..and the result */
+                               PgSQLresult reply(result);
                                switch(PQresultStatus(result))
                                {
                                        case PGRES_EMPTY_QUERY:
                                        case PGRES_BAD_RESPONSE:
                                        case PGRES_FATAL_ERROR:
-                                               reply.error.Id(QREPLY_FAIL);
-                                               reply.error.Str(PQresultErrorMessage(result));
-                                       default:;
-                                               /* No action, other values are not errors */
+                                       {
+                                               SQL::Error err(SQL::QREPLY_FAIL, PQresultErrorMessage(result));
+                                               qinprog.c->OnError(err);
+                                               break;
+                                       }
+                                       default:
+                                               /* Other values are not errors */
+                                               qinprog.c->OnResult(reply);
                                }
 
-                               reply.Send();
-
-                               /* PgSQLresult's destructor will free the PGresult */
+                               delete qinprog.c;
+                               qinprog = QueueItem(NULL, "");
+                               goto restart;
                        }
                        else
                        {
-                               /* If the client module is unloaded partway through a query then the provider will set
-                                * the pointer to NULL. We cannot just cancel the query as the result will still come
-                                * through at some point...and it could get messy if we play with invalid pointers...
-                                */
-                               Instance->Log(DEBUG, "Looks like we're handling a zombie query from a module which unloaded before it got a result..fun. ID: %lu", query.id);
-                               PQclear(result);
+                               qinprog.q.clear();
                        }
-
-                       qinprog = false;
-                       queue.pop();
-                       DoConnectedPoll();
                }
                else
                {
-                       Instance->Log(DEBUG, "Eh!? We just got a read event, and connection isn't busy..but no result :(");
+                       /* I think we'll assume this means the server died...it might not,
+                        * but I think that any error serious enough we actually get here
+                        * deserves to reconnect [/excuse]
+                        * Returning true so the core doesn't try and close the connection.
+                        */
+                       DelayReconnect();
                }
-
-               return true;
-       }
-       else
-       {
-               /* I think we'll assume this means the server died...it might not,
-                * but I think that any error serious enough we actually get here
-                * deserves to reconnect [/excuse]
-                * Returning true so the core doesn't try and close the connection.
-                */
-               Instance->Log(DEBUG, "PQconsumeInput failed: %s", PQerrorMessage(sql));
-               Reconnect();
-               return true;
-       }
-}
-
-bool SQLConn::DoResetPoll()
-{
-       switch(PQresetPoll(sql))
-       {
-               case PGRES_POLLING_WRITING:
-                       //ServerInstance->Log(DEBUG, "PGresetPoll: PGRES_POLLING_WRITING");
-                       WantWrite();
-                       status = CWRITE;
-                       return DoPoll();
-               case PGRES_POLLING_READING:
-                       //ServerInstance->Log(DEBUG, "PGresetPoll: PGRES_POLLING_READING");
-                       status = CREAD;
-                       return true;
-               case PGRES_POLLING_FAILED:
-                       //ServerInstance->Log(DEBUG, "PGresetPoll: PGRES_POLLING_FAILED: %s", PQerrorMessage(sql));
-                       return false;
-               case PGRES_POLLING_OK:
-                       //ServerInstance->Log(DEBUG, "PGresetPoll: PGRES_POLLING_OK");
-                       status = WWRITE;
-                       return DoConnectedPoll();
-               default:
-                       //ServerInstance->Log(DEBUG, "PGresetPoll: wtf?");
-                       return true;
-       }
-}
-
-void SQLConn::ShowStatus()
-{
-       switch(PQstatus(sql))
-       {
-               case CONNECTION_STARTED:
-                       Instance->Log(DEBUG, "PQstatus: CONNECTION_STARTED: Waiting for connection to be made.");
-                       break;
-
-               case CONNECTION_MADE:
-                       Instance->Log(DEBUG, "PQstatus: CONNECTION_MADE: Connection OK; waiting to send.");
-                       break;
-
-               case CONNECTION_AWAITING_RESPONSE:
-                       Instance->Log(DEBUG, "PQstatus: CONNECTION_AWAITING_RESPONSE: Waiting for a response from the server.");
-                       break;
-
-               case CONNECTION_AUTH_OK:
-                       Instance->Log(DEBUG, "PQstatus: CONNECTION_AUTH_OK: Received authentication; waiting for backend start-up to finish.");
-                       break;
-
-               case CONNECTION_SSL_STARTUP:
-                       Instance->Log(DEBUG, "PQstatus: CONNECTION_SSL_STARTUP: Negotiating SSL encryption.");
-                       break;
-
-               case CONNECTION_SETENV:
-                       Instance->Log(DEBUG, "PQstatus: CONNECTION_SETENV: Negotiating environment-driven parameter settings.");
-                       break;
-
-               default:
-                       Instance->Log(DEBUG, "PQstatus: ???");
        }
-}
-
-bool SQLConn::OnDataReady()
-{
-       /* Always return true here, false would close the socket - we need to do that ourselves with the pgsql API */
-       Instance->Log(DEBUG, "OnDataReady(): status = %s", StatusStr());
-
-       return DoEvent();
-}
-
-bool SQLConn::OnWriteReady()
-{
-       /* Always return true here, false would close the socket - we need to do that ourselves with the pgsql API */
-       Instance->Log(DEBUG, "OnWriteReady(): status = %s", StatusStr());
 
-       return DoEvent();
-}
-
-bool SQLConn::OnConnected()
-{
-       Instance->Log(DEBUG, "OnConnected(): status = %s", StatusStr());
-
-       return DoEvent();
-}
-
-bool SQLConn::Reconnect()
-{
-       Instance->Log(DEBUG, "Initiating reconnect");
+       void DelayReconnect();
 
-       if(PQresetStart(sql))
-       {
-               /* Successfully initiatied database reconnect,
-                * set flags so PQresetPoll() will be called appropriately
-                */
-               status = RWRITE;
-               qinprog = false;
-               return true;
-       }
-       else
-       {
-               Instance->Log(DEBUG, "Failed to initiate reconnect...fun");
-               return false;
-       }
-}
-
-bool SQLConn::DoEvent()
-{
-       bool ret;
-
-       if((status == CREAD) || (status == CWRITE))
-       {
-               ret = DoPoll();
-       }
-       else if((status == RREAD) || (status == RWRITE))
-       {
-               ret = DoResetPoll();
-       }
-       else
+       void DoEvent()
        {
-               ret = DoConnectedPoll();
+               if((status == CREAD) || (status == CWRITE))
+               {
+                       DoPoll();
+               }
+               else if (status == WREAD || status == WWRITE)
+               {
+                       DoConnectedPoll();
+               }
        }
 
-       switch(PQflush(sql))
+       void Submit(SQL::Query *req, const std::string& q) CXX11_OVERRIDE
        {
-               case -1:
-                       Instance->Log(DEBUG, "Error flushing write queue: %s", PQerrorMessage(sql));
-                       break;
-               case 0:
-                       Instance->Log(DEBUG, "Successfully flushed write queue (or there was nothing to write)");
-                       break;
-               case 1:
-                       Instance->Log(DEBUG, "Not all of the write queue written, triggering write event so we can have another go");
-                       WantWrite();
-                       break;
+               ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "Executing PostgreSQL query: " + q);
+               if (qinprog.q.empty())
+               {
+                       DoQuery(QueueItem(req,q));
+               }
+               else
+               {
+                       // wait your turn.
+                       queue.push_back(QueueItem(req,q));
+               }
        }
 
-       return ret;
-}
-
-const char* SQLConn::StatusStr()
-{
-       if(status == CREAD) return "CREAD";
-       if(status == CWRITE) return "CWRITE";
-       if(status == WREAD) return "WREAD";
-       if(status == WWRITE) return "WWRITE";
-       return "Err...what, erm..BUG!";
-}
-
-SQLerror SQLConn::DoQuery(SQLrequest &req)
-{
-       if((status == WREAD) || (status == WWRITE))
+       void Submit(SQL::Query *req, const std::string& q, const SQL::ParamList& p) CXX11_OVERRIDE
        {
-               if(!qinprog)
+               std::string res;
+               unsigned int param = 0;
+               for(std::string::size_type i = 0; i < q.length(); i++)
                {
-                       /* Parse the command string and dispatch it */
-
-                       /* Pointer to the buffer we screw around with substitution in */
-                       char* query;
-                       /* Pointer to the current end of query, where we append new stuff */
-                       char* queryend;
-                       /* Total length of the unescaped parameters */
-                       unsigned int paramlen;
-
-                       paramlen = 0;
-
-                       for(ParamL::iterator i = req.query.p.begin(); i != req.query.p.end(); i++)
-                       {
-                               paramlen += i->size();
-                       }
-
-                       /* To avoid a lot of allocations, allocate enough memory for the biggest the escaped query could possibly be.
-                        * sizeofquery + (totalparamlength*2) + 1
-                        *
-                        * The +1 is for null-terminating the string for PQsendQuery()
-                        */
-
-                       query = new char[req.query.q.length() + (paramlen*2) + 1];
-                       queryend = query;
-
-                       /* Okay, now we have a buffer large enough we need to start copying the query into it and escaping and substituting
-                        * the parameters into it...
-                        */
-
-                       for(unsigned int i = 0; i < req.query.q.length(); i++)
+                       if (q[i] != '?')
+                               res.push_back(q[i]);
+                       else
                        {
-                               if(req.query.q[i] == '?')
+                               if (param < p.size())
                                {
-                                       /* We found a place to substitute..what fun.
-                                        * Use the PgSQL calls to escape and write the
-                                        * escaped string onto the end of our query buffer,
-                                        * then we "just" need to make sure queryend is
-                                        * pointing at the right place.
-                                        */
-
-                                       if(req.query.p.size())
-                                       {
-                                               int error = 0;
-                                               size_t len = 0;
-
-#ifdef PGSQL_HAS_ESCAPECONN
-                                               len = PQescapeStringConn(sql, queryend, req.query.p.front().c_str(), req.query.p.front().length(), &error);
-#else
-                                               len = PQescapeString         (queryend, req.query.p.front().c_str(), req.query.p.front().length());
-#endif
-                                               if(error)
-                                               {
-                                                       Instance->Log(DEBUG, "Apparently PQescapeStringConn() failed somehow...don't know how or what to do...");
-                                               }
-
-                                               Instance->Log(DEBUG, "Appended %d bytes of escaped string onto the query", len);
-
-                                               /* Incremenet queryend to the end of the newly escaped parameter */
-                                               queryend += len;
-
-                                               /* Remove the parameter we just substituted in */
-                                               req.query.p.pop_front();
-                                       }
-                                       else
-                                       {
-                                               Instance->Log(DEBUG, "Found a substitution location but no parameter to substitute :|");
-                                               break;
-                                       }
-                               }
-                               else
-                               {
-                                       *queryend = req.query.q[i];
-                                       queryend++;
+                                       std::string parm = p[param++];
+                                       std::vector<char> buffer(parm.length() * 2 + 1);
+                                       int error;
+                                       size_t escapedsize = PQescapeStringConn(sql, &buffer[0], parm.data(), parm.length(), &error);
+                                       if (error)
+                                               ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "BUG: Apparently PQescapeStringConn() failed");
+                                       res.append(&buffer[0], escapedsize);
                                }
                        }
+               }
+               Submit(req, res);
+       }
 
-                       /* Null-terminate the query */
-                       *queryend = 0;
-
-                       Instance->Log(DEBUG, "Attempting to dispatch query: %s", query);
-
-                       req.query.q = query;
-
-                       if(PQsendQuery(sql, query))
-                       {
-                               Instance->Log(DEBUG, "Dispatched query successfully");
-                               qinprog = true;
-                               delete[] query;
-                               return SQLerror();
-                       }
+       void Submit(SQL::Query *req, const std::string& q, const SQL::ParamMap& p) CXX11_OVERRIDE
+       {
+               std::string res;
+               for(std::string::size_type i = 0; i < q.length(); i++)
+               {
+                       if (q[i] != '$')
+                               res.push_back(q[i]);
                        else
                        {
-                               Instance->Log(DEBUG, "Failed to dispatch query: %s", PQerrorMessage(sql));
-                               delete[] query;
-                               return SQLerror(QSEND_FAIL, PQerrorMessage(sql));
+                               std::string field;
+                               i++;
+                               while (i < q.length() && isalnum(q[i]))
+                                       field.push_back(q[i++]);
+                               i--;
+
+                               SQL::ParamMap::const_iterator it = p.find(field);
+                               if (it != p.end())
+                               {
+                                       std::string parm = it->second;
+                                       std::vector<char> buffer(parm.length() * 2 + 1);
+                                       int error;
+                                       size_t escapedsize = PQescapeStringConn(sql, &buffer[0], parm.data(), parm.length(), &error);
+                                       if (error)
+                                               ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "BUG: Apparently PQescapeStringConn() failed");
+                                       res.append(&buffer[0], escapedsize);
+                               }
                        }
                }
+               Submit(req, res);
        }
 
-       return SQLerror(BAD_CONN, "Can't query until connection is complete");
-}
-
-SQLerror SQLConn::Query(const SQLrequest &req)
-{
-       queue.push(req);
-
-       if(!qinprog && queue.totalsize())
+       void DoQuery(const QueueItem& req)
        {
-               /* There's no query currently in progress, and there's queries in the queue. */
-               SQLrequest& query = queue.front();
-               return DoQuery(query);
+               if (status != WREAD && status != WWRITE)
+               {
+                       // whoops, not connected...
+                       SQL::Error err(SQL::BAD_CONN);
+                       req.c->OnError(err);
+                       delete req.c;
+                       return;
+               }
+
+               if(PQsendQuery(sql, req.q.c_str()))
+               {
+                       qinprog = req;
+               }
+               else
+               {
+                       SQL::Error err(SQL::QSEND_FAIL, PQerrorMessage(sql));
+                       req.c->OnError(err);
+                       delete req.c;
+               }
        }
-       else
+
+       void Close()
        {
-               return SQLerror();
-       }
-}
+               status = DEAD;
 
-void SQLConn::OnUnloadModule(Module* mod)
-{
-       queue.PurgeModule(mod);
-}
+               if (HasFd() && SocketEngine::HasFd(GetFd()))
+                       SocketEngine::DelFd(this);
 
-const SQLhost SQLConn::GetConfHost()
-{
-       return confhost;
-}
+               if(sql)
+               {
+                       PQfinish(sql);
+                       sql = NULL;
+               }
+       }
+};
 
 class ModulePgSQL : public Module
 {
-private:
-
+ public:
        ConnMap connections;
-       ConnMap deadconnections;
-       unsigned long currid;
-       char* sqlsuccess;
+       ReconnectTimer* retimer;
 
-public:
-       ModulePgSQL(InspIRCd* Me)
-       : Module::Module(Me), currid(0)
+       ModulePgSQL()
+               : retimer(NULL)
        {
-               ServerInstance->UseInterface("SQLutils");
-
-               sqlsuccess = new char[strlen(SQLSUCCESS)+1];
-
-               strlcpy(sqlsuccess, SQLSUCCESS, strlen(SQLSUCCESS));
-
-               if (!ServerInstance->PublishFeature("SQL", this))
-               {
-                       throw ModuleException("m_pgsql: Unable to publish feature 'SQL'");
-               }
-
-               ReadConf();
-
-               ServerInstance->PublishInterface("SQL", this);
        }
 
-       virtual ~ModulePgSQL()
+       ~ModulePgSQL()
        {
+               delete retimer;
                ClearAllConnections();
-               delete[] sqlsuccess;
-               ServerInstance->UnpublishInterface("SQL", this);
-               ServerInstance->UnpublishFeature("SQL");
-               ServerInstance->DoneWithInterface("SQLutils");
        }
 
-       void Implements(char* List)
-       {
-               List[I_OnUnloadModule] = List[I_OnRequest] = List[I_OnRehash] = List[I_OnUserRegister] = List[I_OnCheckReady] = List[I_OnUserDisconnect] = 1;
-       }
-
-       virtual void OnRehash(userrec* user, const std::string &parameter)
+       void ReadConfig(ConfigStatus& status) CXX11_OVERRIDE
        {
                ReadConf();
        }
 
-       bool HasHost(const SQLhost &host)
-       {
-               ClearDeadConnections();
-               for (ConnMap::iterator iter = connections.begin(); iter != connections.end(); iter++)
-               {
-                       if (host == iter->second->GetConfHost())
-                               return true;
-               }
-               return false;
-       }
-
-       bool HostInConf(const SQLhost &h)
-       {
-               ClearDeadConnections();
-               ConfigReader conf(ServerInstance);
-               for(int i = 0; i < conf.Enumerate("database"); i++)
-               {
-                       SQLhost host;
-                       host.id         = conf.ReadValue("database", "id", i);
-                       host.host       = conf.ReadValue("database", "hostname", i);
-                       host.port       = conf.ReadInteger("database", "port", i, true);
-                       host.name       = conf.ReadValue("database", "name", i);
-                       host.user       = conf.ReadValue("database", "username", i);
-                       host.pass       = conf.ReadValue("database", "password", i);
-                       host.ssl        = conf.ReadFlag("database", "ssl", i);
-                       if (h == host)
-                               return true;
-               }
-               return false;
-       }
-
        void ReadConf()
        {
-               ClearDeadConnections();
-               ConfigReader conf(ServerInstance);
-
-               for(int i = 0; i < conf.Enumerate("database"); i++)
+               ConnMap conns;
+               ConfigTagList tags = ServerInstance->Config->ConfTags("database");
+               for(ConfigIter i = tags.first; i != tags.second; i++)
                {
-                       SQLhost host;
-                       int ipvalid;
-                       insp_inaddr blargle;
-
-                       host.id         = conf.ReadValue("database", "id", i);
-                       host.host       = conf.ReadValue("database", "hostname", i);
-                       host.port       = conf.ReadInteger("database", "port", i, true);
-                       host.name       = conf.ReadValue("database", "name", i);
-                       host.user       = conf.ReadValue("database", "username", i);
-                       host.pass       = conf.ReadValue("database", "password", i);
-                       host.ssl        = conf.ReadFlag("database", "ssl", i);
-
-                       if (HasHost(host))
+                       if (!stdalgo::string::equalsci(i->second->getString("module"), "pgsql"))
                                continue;
-
-                       ipvalid = insp_aton(host.host.c_str(), &blargle);
-
-                       if(ipvalid > 0)
-                       {
-                               /* The conversion succeeded, we were given an IP and we can give it straight to SQLConn */
-                               host.ip = host.host;
-                               this->AddConn(host);
-                       }
-                       else if(ipvalid == 0)
+                       std::string id = i->second->getString("id");
+                       ConnMap::iterator curr = connections.find(id);
+                       if (curr == connections.end())
                        {
-                               /* Conversion failed, assume it's a host */
-                               SQLresolver* resolver;
-
-                               try
+                               SQLConn* conn = new SQLConn(this, i->second);
+                               if (conn->status != DEAD)
                                {
-                                       bool cached;
-                                       resolver = new SQLresolver(this, ServerInstance, host, cached);
-                                       ServerInstance->AddResolver(resolver, cached);
-                               }
-                               catch(...)
-                               {
-                                       /* THE WORLD IS COMING TO AN END! */
-                                       ServerInstance->Log(DEBUG, "Couldn't make a SQLresolver..this connection is gonna diiiiiie...actually we just won't create it");
+                                       conns.insert(std::make_pair(id, conn));
+                                       ServerInstance->Modules->AddService(*conn);
                                }
+                               // If the connection is dead it has already been queued for culling
+                               // at the end of the main loop so we don't need to delete it here.
                        }
                        else
                        {
-                               /* Invalid address family, die horribly. */
-                               ServerInstance->Log(DEBUG, "insp_aton failed returning -1, oh noes.");
-                       }
-               }
-               ClearOldConnections();
-       }
-
-       void ClearOldConnections()
-       {
-               ClearDeadConnections();
-               ConnMap::iterator iter,safei;
-               for (iter = connections.begin(); iter != connections.end(); iter++)
-               {
-                       if (!HostInConf(iter->second->GetConfHost()))
-                       {
-                               delete iter->second;
-                               safei = iter;
-                               --iter;
-                               connections.erase(safei);
+                               conns.insert(*curr);
+                               connections.erase(curr);
                        }
                }
+               ClearAllConnections();
+               conns.swap(connections);
        }
 
        void ClearAllConnections()
        {
-               ClearDeadConnections();
-               ConnMap::iterator iter;
-               while ((iter = connections.begin()) != connections.end())
+               for(ConnMap::iterator i = connections.begin(); i != connections.end(); i++)
                {
-                       connections.erase(iter);
-                       delete iter->second;
+                       i->second->cull();
+                       delete i->second;
                }
+               connections.clear();
        }
 
-       void ClearDeadConnections()
+       void OnUnloadModule(Module* mod) CXX11_OVERRIDE
        {
-               ConnMap::iterator di;
-               while ((di = deadconnections.begin()) != deadconnections.end())
+               SQL::Error err(SQL::BAD_DBID);
+               for(ConnMap::iterator i = connections.begin(); i != connections.end(); i++)
                {
-                       ConnMap::iterator iter = connections.find(di->first);
-                       if (iter != connections.end())
+                       SQLConn* conn = i->second;
+                       if (conn->qinprog.c && conn->qinprog.c->creator == mod)
                        {
-                               connections.erase(iter);
+                               conn->qinprog.c->OnError(err);
+                               delete conn->qinprog.c;
+                               conn->qinprog.c = NULL;
                        }
-                       deadconnections.erase(di);
-               }
-       }
-
-       void AddDeadConn(std::string id, SQLConn* conn)
-       {
-               deadconnections[id] = conn;
-       }
-
-       void AddConn(const SQLhost& hi)
-       {
-               if (HasHost(hi))
-               {
-                       ServerInstance->Log(DEFAULT, "WARNING: A pgsql connection with id: %s already exists, possibly due to DNS delay. Aborting connection attempt.", hi.id.c_str());
-                       return;
-               }
-
-               SQLConn* newconn;
-
-               /* The conversion succeeded, we were given an IP and we can give it straight to SQLConn */
-               newconn = new SQLConn(ServerInstance, this, hi);
-
-               connections.insert(std::make_pair(hi.id, newconn));
-       }
-
-       virtual char* OnRequest(Request* request)
-       {
-               if(strcmp(SQLREQID, request->GetId()) == 0)
-               {
-                       SQLrequest* req = (SQLrequest*)request;
-                       ConnMap::iterator iter;
-
-                       ServerInstance->Log(DEBUG, "Got query: '%s' with %d replacement parameters on id '%s'", req->query.q.c_str(), req->query.p.size(), req->dbid.c_str());
-
-                       if((iter = connections.find(req->dbid)) != connections.end())
-                       {
-                               /* Execute query */
-                               req->id = NewID();
-                               req->error = iter->second->Query(*req);
-
-                               return (req->error.Id() == NO_ERROR) ? sqlsuccess : NULL;
-                       }
-                       else
+                       std::deque<QueueItem>::iterator j = conn->queue.begin();
+                       while (j != conn->queue.end())
                        {
-                               req->error.Id(BAD_DBID);
-                               return NULL;
+                               SQL::Query* q = j->c;
+                               if (q->creator == mod)
+                               {
+                                       q->OnError(err);
+                                       delete q;
+                                       j = conn->queue.erase(j);
+                               }
+                               else
+                                       j++;
                        }
                }
-
-               ServerInstance->Log(DEBUG, "Got unsupported API version string: %s", request->GetId());
-
-               return NULL;
        }
 
-       virtual void OnUnloadModule(Module* mod, const std::string&     name)
+       Version GetVersion() CXX11_OVERRIDE
        {
-               /* When a module unloads we have to check all the pending queries for all our connections
-                * and set the Module* specifying where the query came from to NULL. If the query has already
-                * been dispatched then when it is processed it will be dropped if the pointer is NULL.
-                *
-                * If the queries we find are not already being executed then we can simply remove them immediately.
-                */
-               for(ConnMap::iterator iter = connections.begin(); iter != connections.end(); iter++)
-               {
-                       iter->second->OnUnloadModule(mod);
-               }
-       }
-
-       unsigned long NewID()
-       {
-               if (currid+1 == 0)
-                       currid++;
-
-               return ++currid;
-       }
-
-       virtual Version GetVersion()
-       {
-               return Version(1, 1, 0, 0, VF_VENDOR|VF_SERVICEPROVIDER, API_VERSION);
+               return Version("Provides the ability for SQL modules to query a PostgreSQL database.", VF_VENDOR);
        }
 };
 
-/* move this here to use AddConn, rather that than having the whole
- * module above SQLConn, since this is buggin me right now :/
- */
-void SQLresolver::OnLookupComplete(const std::string &result, unsigned int ttl, bool cached)
+bool ReconnectTimer::Tick(time_t time)
 {
-       host.ip = result;
-       ((ModulePgSQL*)mod)->AddConn(host);
-       ((ModulePgSQL*)mod)->ClearOldConnections();
+       mod->retimer = NULL;
+       mod->ReadConf();
+       delete this;
+       return false;
 }
 
-/* move this here too, to use AddDeadConn */
-void SQLConn::DoClose()
+void SQLConn::DelayReconnect()
 {
-       Instance->Log(DEBUG,"SQLConn::Close");
+       status = DEAD;
+       ModulePgSQL* mod = (ModulePgSQL*)(Module*)creator;
 
-       if (!this->Instance->SE->DelFd(this))
+       ConnMap::iterator it = mod->connections.find(conf->getString("id"));
+       if (it != mod->connections.end())
+               mod->connections.erase(it);
+       ServerInstance->GlobalCulls.AddItem((EventHandler*)this);
+       if (!mod->retimer)
        {
-               Instance->Log(DEBUG, "PQsocket cant be removed from the socket engine!");
+               mod->retimer = new ReconnectTimer(mod);
+               ServerInstance->Timers.AddTimer(mod->retimer);
        }
-       this->fd = -1;
-       this->state = I_ERROR;
-       this->OnError(I_ERR_SOCKET);
-       this->ClosePending = true;
-
-       if(sql)
-       {
-               PQfinish(sql);
-               sql = NULL;
-       }
-
-       ((ModulePgSQL*)us)->AddDeadConn(confhost.id, this);
 }
 
-class ModulePgSQLFactory : public ModuleFactory
-{
- public:
-       ModulePgSQLFactory()
-       {
-       }
-
-       ~ModulePgSQLFactory()
-       {
-       }
-
-       virtual Module * CreateModule(InspIRCd* Me)
-       {
-               return new ModulePgSQL(Me);
-       }
-};
-
-
-extern "C" void * init_module( void )
-{
-//     PQregisterThreadLock(pgthreadlock_t(1));
-       return new ModulePgSQLFactory;
-}
+MODULE_INIT(ModulePgSQL)