Style cleanup
[citadel.git] / citadel / event_client.c
index b5e54b9593047411e3780e60411c49ed2ed14ed8..833a270a75f316b970133c962dd0ce1116aa5591 100644 (file)
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright (c) 1998-2009 by the citadel.org team
+ * Copyright (c) 1998-2012 by the citadel.org team
  *
  *  This program is open source software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
@@ -67,7 +67,9 @@
 
 #include "event_client.h"
 
-static void IO_abort_shutdown_callback(struct ev_loop *loop, ev_cleanup *watcher, int revents)
+static void IO_abort_shutdown_callback(struct ev_loop *loop,
+                                      ev_cleanup *watcher,
+                                      int revents)
 {
        AsyncIO *IO = watcher->data;
        EV_syslog(LOG_DEBUG, "EVENT Q: %s\n", __FUNCTION__);
@@ -77,14 +79,14 @@ static void IO_abort_shutdown_callback(struct ev_loop *loop, ev_cleanup *watcher
 }
 
 
-/*--------------------------------------------------------------------------------
- * Server DB IO 
- */
+/*------------------------------------------------------------------------------
+ *                             Server DB IO
+ *----------------------------------------------------------------------------*/
 extern int evdb_count;
 extern pthread_mutex_t DBEventQueueMutex;
 extern HashList *DBInboundEventQueue;
 extern struct ev_loop *event_db;
-extern ev_async DBAddJob;   
+extern ev_async DBAddJob;
 extern ev_async DBExitEventLoop;
 
 eNextState QueueDBOperation(AsyncIO *IO, IO_CallBack CB)
@@ -95,7 +97,7 @@ eNextState QueueDBOperation(AsyncIO *IO, IO_CallBack CB)
        h = (IOAddHandler*)malloc(sizeof(IOAddHandler));
        h->IO = IO;
        h->EvAttch = CB;
-       ev_cleanup_init(&IO->db_abort_by_shutdown, 
+       ev_cleanup_init(&IO->db_abort_by_shutdown,
                        IO_abort_shutdown_callback);
        IO->db_abort_by_shutdown.data = IO;
        ev_cleanup_start(event_db, &IO->db_abort_by_shutdown);
@@ -120,10 +122,7 @@ void ShutDownDBCLient(AsyncIO *IO)
        ev_cleanup_stop(event_db, &IO->db_abort_by_shutdown);
 
        assert(IO->Terminate);
-       IO->Terminate(IO);      
-
-       Ctx->state = CON_IDLE;
-       Ctx->kill_me = 1;
+       IO->Terminate(IO);
 }
 
 void
@@ -132,7 +131,7 @@ DB_PerformNext(struct ev_loop *loop, ev_idle *watcher, int revents)
        AsyncIO *IO = watcher->data;
        EV_syslog(LOG_DEBUG, "event: %s\n", __FUNCTION__);
        become_session(IO->CitContext);
-       
+
        ev_idle_stop(event_db, &IO->db_unwind_stack);
 
        assert(IO->NextDBOperation);
@@ -143,10 +142,10 @@ DB_PerformNext(struct ev_loop *loop, ev_idle *watcher, int revents)
        case eSendDNSQuery:
        case eReadDNSReply:
        case eConnect:
-       case eSendReply: 
+       case eSendReply:
        case eSendMore:
        case eSendFile:
-       case eReadMessage: 
+       case eReadMessage:
        case eReadMore:
        case eReadPayload:
        case eReadFile:
@@ -170,14 +169,14 @@ eNextState NextDBOperation(AsyncIO *IO, IO_CallBack CB)
        return eDBQuery;
 }
 
-/*--------------------------------------------------------------------------------
- * Client IO 
- */
+/*------------------------------------------------------------------------------
+ *                     Client IO
+ *----------------------------------------------------------------------------*/
 extern int evbase_count;
 extern pthread_mutex_t EventQueueMutex;
 extern HashList *InboundEventQueue;
 extern struct ev_loop *event_base;
-extern ev_async AddJob;   
+extern ev_async AddJob;
 extern ev_async ExitEventLoop;
 
 
@@ -189,7 +188,7 @@ eNextState QueueEventContext(AsyncIO *IO, IO_CallBack CB)
        h = (IOAddHandler*)malloc(sizeof(IOAddHandler));
        h->IO = IO;
        h->EvAttch = CB;
-       ev_cleanup_init(&IO->abort_by_shutdown, 
+       ev_cleanup_init(&IO->abort_by_shutdown,
                        IO_abort_shutdown_callback);
        IO->abort_by_shutdown.data = IO;
        ev_cleanup_start(event_base, &IO->abort_by_shutdown);
@@ -227,35 +226,34 @@ eNextState QueueCurlContext(AsyncIO *IO)
        return eSendReply;
 }
 
-int ShutDownEventQueue(void)
-{
-       pthread_mutex_lock(&DBEventQueueMutex);
-       ev_async_send (event_db, &DBExitEventLoop);
-       pthread_mutex_unlock(&DBEventQueueMutex);
-
-       pthread_mutex_lock(&EventQueueMutex);
-       ev_async_send (EV_DEFAULT_ &ExitEventLoop);
-       pthread_mutex_unlock(&EventQueueMutex);
-       return 0;
-}
-
+void DestructCAres(AsyncIO *IO);
 void FreeAsyncIOContents(AsyncIO *IO)
 {
+       CitContext *Ctx = IO->CitContext;
+
        FreeStrBuf(&IO->IOBuf);
        FreeStrBuf(&IO->SendBuf.Buf);
        FreeStrBuf(&IO->RecvBuf.Buf);
+
+       DestructCAres(IO);
+
+       FreeURL(&IO->ConnectMe);
+       FreeStrBuf(&IO->HttpReq.ReplyData);
+
+       Ctx->state = CON_IDLE;
+       Ctx->kill_me = 1;
 }
 
 
 void StopClientWatchers(AsyncIO *IO)
 {
+       ev_timer_stop (event_base, &IO->rw_timeout);
        ev_timer_stop(event_base, &IO->conn_fail);
-       ev_io_stop(event_base, &IO->conn_event);
        ev_idle_stop(event_base, &IO->unwind_stack);
 
+       ev_io_stop(event_base, &IO->conn_event);
        ev_io_stop(event_base, &IO->send_event);
        ev_io_stop(event_base, &IO->recv_event);
-       ev_timer_stop (event_base, &IO->rw_timeout);
        close(IO->SendBuf.fd);
        IO->SendBuf.fd = 0;
        IO->RecvBuf.fd = 0;
@@ -271,16 +269,14 @@ void ShutDownCLient(AsyncIO *IO)
        ev_cleanup_stop(event_base, &IO->abort_by_shutdown);
        StopClientWatchers(IO);
 
-       if (IO->DNSChannel != NULL) {
-               ares_destroy(IO->DNSChannel);
-               ev_io_stop(event_base, &IO->dns_recv_event);
-               ev_io_stop(event_base, &IO->dns_send_event);
-               IO->DNSChannel = NULL;
+       if (IO->DNS.Channel != NULL) {
+               ares_destroy(IO->DNS.Channel);
+               ev_io_stop(event_base, &IO->DNS.recv_event);
+               ev_io_stop(event_base, &IO->DNS.send_event);
+               IO->DNS.Channel = NULL;
        }
        assert(IO->Terminate);
        IO->Terminate(IO);
-       Ctx->state = CON_IDLE;
-       Ctx->kill_me = 1;
 }
 
 
@@ -288,47 +284,46 @@ eReadState HandleInbound(AsyncIO *IO)
 {
        const char *Err = NULL;
        eReadState Finished = eBufferNotEmpty;
-       
+
        become_session(IO->CitContext);
 
-       while ((Finished == eBufferNotEmpty) && 
+       while ((Finished == eBufferNotEmpty) &&
               ((IO->NextState == eReadMessage)||
                (IO->NextState == eReadMore)||
                (IO->NextState == eReadFile)||
                (IO->NextState == eReadPayload)))
        {
-               if (IO->RecvBuf.nBlobBytesWanted != 0) { 
-                               
-               }
-               else { /* Reading lines... */
-//// lex line reply in callback, or do it ourselves. as nnn-blabla means continue reading in SMTP
-                       if ((IO->NextState == eReadFile) && 
-                           (Finished == eBufferNotEmpty))
+               /* Reading lines...
+                * lex line reply in callback,
+                * or do it ourselves.
+                * i.e. as nnn-blabla means continue reading in SMTP
+                */
+               if ((IO->NextState == eReadFile) &&
+                   (Finished == eBufferNotEmpty))
+               {
+                       Finished = WriteIOBAlreadyRead(&IO->IOB, &Err);
+                       if (Finished == eReadSuccess)
                        {
-                               Finished = WriteIOBAlreadyRead(&IO->IOB, &Err);
-                               if (Finished == eReadSuccess)
-                               {
-                                       IO->NextState = eSendReply;                             
-                               }
-                       }
-                       else if (IO->LineReader)
-                               Finished = IO->LineReader(IO);
-                       else 
-                               Finished = StrBufChunkSipLine(IO->IOBuf, &IO->RecvBuf);
-                               
-                       switch (Finished) {
-                       case eMustReadMore: /// read new from socket... 
-                               break;
-                       case eBufferNotEmpty: /* shouldn't happen... */
-                       case eReadSuccess: /// done for now...
-                               break;
-                       case eReadFail: /// WHUT?
-                               ///todo: shut down! 
-                               break;
+                               IO->NextState = eSendReply;
                        }
-                                       
                }
-                       
+               else if (IO->LineReader)
+                       Finished = IO->LineReader(IO);
+               else
+                       Finished = StrBufChunkSipLine(IO->IOBuf,
+                                                     &IO->RecvBuf);
+
+               switch (Finished) {
+               case eMustReadMore: /// read new from socket...
+                       break;
+               case eBufferNotEmpty: /* shouldn't happen... */
+               case eReadSuccess: /// done for now...
+                       break;
+               case eReadFail: /// WHUT?
+                               ///todo: shut down!
+                       break;
+               }
+
                if (Finished != eMustReadMore) {
                        assert(IO->ReadDone);
                        ev_io_stop(event_base, &IO->recv_event);
@@ -385,15 +380,15 @@ IO_send_callback(struct ev_loop *loop, ev_io *watcher, int revents)
                const char *pch = ChrPtr(IO->SendBuf.Buf);
                const char *pchh = IO->SendBuf.ReadWritePointer;
                long nbytes;
-               
+
                if (pchh == NULL)
                        pchh = pch;
-               
+
                nbytes = StrLength(IO->SendBuf.Buf) - (pchh - pch);
                snprintf(fn, SIZ, "/tmp/foolog_ev_%s.%d",
                         ((CitContext*)(IO->CitContext))->ServiceName,
                         IO->SendBuf.fd);
-               
+
                fd = fopen(fn, "a+");
                fprintf(fd, "Send: BufSize: %ld BufContent: [",
                        nbytes);
@@ -408,7 +403,9 @@ IO_send_callback(struct ev_loop *loop, ev_io *watcher, int revents)
                                StrBufPlain(IO->ErrMsg, errmsg, -1);
                        break;
                default:
-                       rc = StrBuf_write_one_chunk_callback(watcher->fd, 0/*TODO*/, &IO->SendBuf);
+                       rc = StrBuf_write_one_chunk_callback(watcher->fd,
+                                                            0/*TODO*/,
+                                                            &IO->SendBuf);
                }
 
 #ifdef BIGBAD_IODBG
@@ -443,12 +440,13 @@ IO_send_callback(struct ev_loop *loop, ev_io *watcher, int revents)
                                case eDBQuery:
                                case eConnect:
                                        break;
-                               case eSendReply: 
+                               case eSendReply:
                                case eSendMore:
                                case eSendFile:
-                                       ev_io_start(event_base, &IO->send_event);
+                                       ev_io_start(event_base,
+                                                   &IO->send_event);
                                        break;
-                               case eReadMessage: 
+                               case eReadMessage:
                                case eReadMore:
                                case eReadPayload:
                                case eReadFile:
@@ -460,14 +458,15 @@ IO_send_callback(struct ev_loop *loop, ev_io *watcher, int revents)
                        }
                        break;
                case eSendReply:
-                   if (StrBufCheckBuffer(&IO->SendBuf) != eReadSuccess) 
+                   if (StrBufCheckBuffer(&IO->SendBuf) != eReadSuccess)
                        break;
                    IO->NextState = eReadMore;
                case eReadMore:
                case eReadMessage:
                case eReadPayload:
                case eReadFile:
-                       if (StrBufCheckBuffer(&IO->RecvBuf) == eBufferNotEmpty) {
+                       if (StrBufCheckBuffer(&IO->RecvBuf) == eBufferNotEmpty)
+                       {
                                HandleInbound(IO);
                        }
                        else {
@@ -476,7 +475,10 @@ IO_send_callback(struct ev_loop *loop, ev_io *watcher, int revents)
 
                        break;
                case eDBQuery:
-                       /* we now live in another queue, so we have to unregister. */
+                       /*
+                        * we now live in another queue,
+                        * so we have to unregister.
+                        */
                        ev_cleanup_stop(loop, &IO->abort_by_shutdown);
                        break;
                case eSendDNSQuery:
@@ -496,7 +498,6 @@ IO_send_callback(struct ev_loop *loop, ev_io *watcher, int revents)
 static void
 set_start_callback(struct ev_loop *loop, AsyncIO *IO, int revents)
 {
-       
        switch(IO->NextState) {
        case eReadMore:
        case eReadMessage:
@@ -539,7 +540,7 @@ IO_Timeout_callback(struct ev_loop *loop, ev_timer *watcher, int revents)
        }
 
        assert(IO->Timeout);
-        switch (IO->Timeout(IO))
+       switch (IO->Timeout(IO))
        {
        case eAbort:
                ShutDownCLient(IO);
@@ -567,7 +568,7 @@ IO_connfail_callback(struct ev_loop *loop, ev_timer *watcher, int revents)
        become_session(IO->CitContext);
 
        assert(IO->ConnFail);
-        switch (IO->ConnFail(IO))
+       switch (IO->ConnFail(IO))
        {
        case eAbort:
                ShutDownCLient(IO);
@@ -578,7 +579,9 @@ IO_connfail_callback(struct ev_loop *loop, ev_timer *watcher, int revents)
 }
 
 static void
-IO_connfailimmediate_callback(struct ev_loop *loop, ev_idle *watcher, int revents)
+IO_connfailimmediate_callback(struct ev_loop *loop,
+                             ev_idle *watcher,
+                             int revents)
 {
        AsyncIO *IO = watcher->data;
 
@@ -592,7 +595,7 @@ IO_connfailimmediate_callback(struct ev_loop *loop, ev_idle *watcher, int revent
        become_session(IO->CitContext);
 
        assert(IO->ConnFail);
-        switch (IO->ConnFail(IO))
+       switch (IO->ConnFail(IO))
        {
        case eAbort:
                ShutDownCLient(IO);
@@ -623,7 +626,7 @@ IO_recv_callback(struct ev_loop *loop, ev_io *watcher, int revents)
                nbytes = FileRecvChunked(&IO->IOB, &errmsg);
                if (nbytes < 0)
                        StrBufPlain(IO->ErrMsg, errmsg, -1);
-               else 
+               else
                {
                        if (IO->IOB.ChunkSendRemain == 0)
                        {
@@ -634,35 +637,35 @@ IO_recv_callback(struct ev_loop *loop, ev_io *watcher, int revents)
                }
                break;
        default:
-               nbytes = StrBuf_read_one_chunk_callback(watcher->fd, 0 /*TODO */, &IO->RecvBuf);
+               nbytes = StrBuf_read_one_chunk_callback(watcher->fd,
+                                                       0 /*TODO */,
+                                                       &IO->RecvBuf);
                break;
        }
 
 #ifdef BIGBAD_IODBG
        {
+               long nbytes;
                int rv = 0;
                char fn [SIZ];
                FILE *fd;
                const char *pch = ChrPtr(IO->RecvBuf.Buf);
                const char *pchh = IO->RecvBuf.ReadWritePointer;
-               long nbytes;
-               
+
                if (pchh == NULL)
                        pchh = pch;
-               
+
                nbytes = StrLength(IO->RecvBuf.Buf) - (pchh - pch);
                snprintf(fn, SIZ, "/tmp/foolog_ev_%s.%d",
-                        ((CitContext*)(IO->CitContext))->ServiceName, 
+                        ((CitContext*)(IO->CitContext))->ServiceName,
                         IO->SendBuf.fd);
-               
+
                fd = fopen(fn, "a+");
                fprintf(fd, "Read: BufSize: %ld BufContent: [",
                        nbytes);
                rv = fwrite(pchh, nbytes, 1, fd);
                if (!rv) printf("failed to write debug to %s!\n", fn);
                fprintf(fd, "]\n");
-               
-               
                fclose(fd);
        }
 #endif
@@ -681,7 +684,7 @@ IO_recv_callback(struct ev_loop *loop, ev_io *watcher, int revents)
                return;
        } else if (nbytes == -1) {
 /// TODO: FD is gone. kick it.        sock_buff_invoke_free(sb, errno);
-               EV_syslog(LOG_DEBUG, 
+               EV_syslog(LOG_DEBUG,
                          "EVENT: Socket Invalid! %s \n",
                          strerror(errno));
                ShutDownCLient(IO);
@@ -695,58 +698,80 @@ IO_postdns_callback(struct ev_loop *loop, ev_idle *watcher, int revents)
        AsyncIO *IO = watcher->data;
        EV_syslog(LOG_DEBUG, "event: %s\n", __FUNCTION__);
        become_session(IO->CitContext);
-       assert(IO->DNSFail);
-       assert(IO->DNSQuery->PostDNS);
-       switch (IO->DNSQuery->PostDNS(IO))
+       assert(IO->DNS.Fail);
+       assert(IO->DNS.Query->PostDNS);
+       switch (IO->DNS.Query->PostDNS(IO))
        {
        case eAbort:
-               switch (IO->DNSFail(IO)) {
+               switch (IO->DNS.Fail(IO)) {
                case eAbort:
                        ShutDownCLient(IO);
                default:
                        break;
-                       
                }
        default:
                break;
        }
 }
 
-eNextState event_connect_socket(AsyncIO *IO, double conn_timeout, double first_rw_timeout)
+
+eNextState EvConnectSock(AsyncIO *IO,
+                        double conn_timeout,
+                        double first_rw_timeout,
+                        int ReadFirst)
 {
-       int fdflags; 
+       int fdflags;
        int rc = -1;
 
-       IO->SendBuf.fd = IO->RecvBuf.fd = 
+       become_session(IO->CitContext);
+
+       if (ReadFirst) {
+               IO->NextState = eReadMessage;
+       }
+       else {
+               IO->NextState = eSendReply;
+       }
+
+       IO->SendBuf.fd = IO->RecvBuf.fd =
                socket(
-                       (IO->ConnectMe->IPv6)?PF_INET6:PF_INET, 
-                       SOCK_STREAM, 
+                       (IO->ConnectMe->IPv6)?PF_INET6:PF_INET,
+                       SOCK_STREAM,
                        IPPROTO_TCP);
 
        if (IO->SendBuf.fd < 0) {
-               EV_syslog(LOG_ERR, "EVENT: socket() failed: %s\n", strerror(errno));
-               StrBufPrintf(IO->ErrMsg, "Failed to create socket: %s", strerror(errno));
+               EV_syslog(LOG_ERR,
+                         "EVENT: socket() failed: %s\n",
+                         strerror(errno));
+
+               StrBufPrintf(IO->ErrMsg,
+                            "Failed to create socket: %s",
+                            strerror(errno));
                return eAbort;
        }
        fdflags = fcntl(IO->SendBuf.fd, F_GETFL);
        if (fdflags < 0) {
-               EV_syslog(LOG_DEBUG, 
+               EV_syslog(LOG_DEBUG,
                          "EVENT: unable to get socket flags! %s \n",
                          strerror(errno));
-               StrBufPrintf(IO->ErrMsg, "Failed to get socket flags: %s", strerror(errno));
+               StrBufPrintf(IO->ErrMsg,
+                            "Failed to get socket flags: %s",
+                            strerror(errno));
                return eAbort;
        }
        fdflags = fdflags | O_NONBLOCK;
        if (fcntl(IO->SendBuf.fd, F_SETFL, fdflags) < 0) {
-               EV_syslog(LOG_DEBUG, 
-                         "EVENT: unable to set socket nonblocking flags! %s \n",
-                         strerror(errno));
-               StrBufPrintf(IO->ErrMsg, "Failed to set socket flags: %s", strerror(errno));
+               EV_syslog(
+                       LOG_DEBUG,
+                       "EVENT: unable to set socket nonblocking flags! %s \n",
+                       strerror(errno));
+               StrBufPrintf(IO->ErrMsg,
+                            "Failed to set socket flags: %s",
+                            strerror(errno));
                close(IO->SendBuf.fd);
                IO->SendBuf.fd = IO->RecvBuf.fd = -1;
                return eAbort;
        }
-/* TODO: maye we could use offsetof() to calc the position of data... 
+/* TODO: maye we could use offsetof() to calc the position of data...
  * http://doc.dvgu.ru/devel/ev.html#associating_custom_data_with_a_watcher
  */
        ev_io_init(&IO->recv_event, IO_recv_callback, IO->RecvBuf.fd, EV_READ);
@@ -756,16 +781,23 @@ eNextState event_connect_socket(AsyncIO *IO, double conn_timeout, double first_r
 
        ev_timer_init(&IO->conn_fail, IO_connfail_callback, conn_timeout, 0);
        IO->conn_fail.data = IO;
-       ev_timer_init(&IO->rw_timeout, IO_Timeout_callback, first_rw_timeout, 0);
+       ev_timer_init(&IO->rw_timeout, IO_Timeout_callback, first_rw_timeout,0);
        IO->rw_timeout.data = IO;
 
 
-       /*  Bypass it like this: IO->Addr.sin_addr.s_addr = inet_addr("127.0.0.1"); */
-///    ((struct sockaddr_in)IO->ConnectMe->Addr).sin_addr.s_addr = inet_addr("127.0.0.1");
+       /* for debugging you may bypass it like this:
+        * IO->Addr.sin_addr.s_addr = inet_addr("127.0.0.1");
+        * ((struct sockaddr_in)IO->ConnectMe->Addr).sin_addr.s_addr =
+        *   inet_addr("127.0.0.1");
+        */
        if (IO->ConnectMe->IPv6)
-               rc = connect(IO->SendBuf.fd, &IO->ConnectMe->Addr, sizeof(struct sockaddr_in6));
+               rc = connect(IO->SendBuf.fd,
+                            &IO->ConnectMe->Addr,
+                            sizeof(struct sockaddr_in6));
        else
-               rc = connect(IO->SendBuf.fd, (struct sockaddr_in *)&IO->ConnectMe->Addr, sizeof(struct sockaddr_in));
+               rc = connect(IO->SendBuf.fd,
+                            (struct sockaddr_in *)&IO->ConnectMe->Addr,
+                            sizeof(struct sockaddr_in));
 
        if (rc >= 0){
                EVM_syslog(LOG_DEBUG, "connect() immediate success.\n");
@@ -776,7 +808,11 @@ eNextState event_connect_socket(AsyncIO *IO, double conn_timeout, double first_r
        else if (errno == EINPROGRESS) {
                EVM_syslog(LOG_DEBUG, "connect() have to wait now.\n");
 
-               ev_io_init(&IO->conn_event, IO_connestd_callback, IO->SendBuf.fd, EV_READ|EV_WRITE);
+               ev_io_init(&IO->conn_event,
+                          IO_connestd_callback,
+                          IO->SendBuf.fd,
+                          EV_READ|EV_WRITE);
+
                IO->conn_event.data = IO;
 
                ev_io_start(event_base, &IO->conn_event);
@@ -788,9 +824,11 @@ eNextState event_connect_socket(AsyncIO *IO, double conn_timeout, double first_r
                             IO_connfailimmediate_callback);
                IO->conn_fail_immediate.data = IO;
                ev_idle_start(event_base, &IO->conn_fail_immediate);
-               
+
                EV_syslog(LOG_ERR, "connect() failed: %s\n", strerror(errno));
-               StrBufPrintf(IO->ErrMsg, "Failed to connect: %s", strerror(errno));
+               StrBufPrintf(IO->ErrMsg,
+                            "Failed to connect: %s",
+                            strerror(errno));
                return IO->NextState;
        }
        return IO->NextState;
@@ -802,26 +840,9 @@ void SetNextTimeout(AsyncIO *IO, double timeout)
        ev_timer_again (event_base,  &IO->rw_timeout);
 }
 
-eNextState InitEventIO(AsyncIO *IO, 
-                      void *pData, 
-                      double conn_timeout, 
-                      double first_rw_timeout,
-                      int ReadFirst)
-{
-       IO->Data = pData;
-       become_session(IO->CitContext);
-       
-       if (ReadFirst) {
-               IO->NextState = eReadMessage;
-       }
-       else {
-               IO->NextState = eSendReply;
-       }
-       return event_connect_socket(IO, conn_timeout, first_rw_timeout);
-}
 
-eNextState ReAttachIO(AsyncIO *IO, 
-                     void *pData, 
+eNextState ReAttachIO(AsyncIO *IO,
+                     void *pData,
                      int ReadFirst)
 {
        IO->Data = pData;
@@ -837,3 +858,63 @@ eNextState ReAttachIO(AsyncIO *IO,
 
        return IO->NextState;
 }
+
+void InitIOStruct(AsyncIO *IO,
+                 void *Data,
+                 eNextState NextState,
+                 IO_LineReaderCallback LineReader,
+                 IO_CallBack DNS_Fail,
+                 IO_CallBack SendDone,
+                 IO_CallBack ReadDone,
+                 IO_CallBack Terminate,
+                 IO_CallBack ConnFail,
+                 IO_CallBack Timeout,
+                 IO_CallBack ShutdownAbort)
+{
+       IO->Data          = Data;
+
+       IO->CitContext    = CloneContext(CC);
+       ((CitContext *)IO->CitContext)->session_specific_data = (char*) Data;
+
+       IO->NextState     = NextState;
+
+       IO->SendDone      = SendDone;
+       IO->ReadDone      = ReadDone;
+       IO->Terminate     = Terminate;
+       IO->LineReader    = LineReader;
+       IO->ConnFail      = ConnFail;
+       IO->Timeout       = Timeout;
+       IO->ShutdownAbort = ShutdownAbort;
+
+       IO->DNS.Fail      = DNS_Fail;
+
+       IO->SendBuf.Buf   = NewStrBufPlain(NULL, 1024);
+       IO->RecvBuf.Buf   = NewStrBufPlain(NULL, 1024);
+       IO->IOBuf         = NewStrBuf();
+
+}
+
+extern int evcurl_init(AsyncIO *IO);
+
+int InitcURLIOStruct(AsyncIO *IO,
+                    void *Data,
+                    const char* Desc,
+                    IO_CallBack SendDone,
+                    IO_CallBack Terminate,
+                    IO_CallBack ShutdownAbort)
+{
+       IO->Data          = Data;
+
+       IO->CitContext    = CloneContext(CC);
+       ((CitContext *)IO->CitContext)->session_specific_data = (char*) Data;
+
+       IO->SendDone = SendDone;
+       IO->Terminate = Terminate;
+       IO->ShutdownAbort = ShutdownAbort;
+
+       strcpy(IO->HttpReq.errdesc, Desc);
+
+
+       return  evcurl_init(IO);
+
+}