/*
+ * Copyright (c) 1998-2012 by the citadel.org team
*
- * Copyright (c) 1998-2009 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, version 3.
*
- * 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
- * the Free Software Foundation; either version 3 of the License, or
- * (at your option) any later version.
- *
- * 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, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * 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.
*/
-
#include "sysdep.h"
-#include <stdlib.h>
-#include <unistd.h>
-#include <stdio.h>
-#include <termios.h>
-#include <fcntl.h>
-#include <signal.h>
-#include <pwd.h>
-#include <errno.h>
-#include <sys/types.h>
-#include <syslog.h>
-#if TIME_WITH_SYS_TIME
-# include <sys/time.h>
-# include <time.h>
-#else
-# if HAVE_SYS_TIME_H
-# include <sys/time.h>
-# else
-# include <time.h>
-# endif
-#endif
-#include <sys/wait.h>
-#include <ctype.h>
+#include <stdio.h>
#include <string.h>
-#include <limits.h>
+#include <syslog.h>
+#include <assert.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
-#include <assert.h>
+#if HAVE_BACKTRACE
+#include <execinfo.h>
+#endif
#include <libcitadel.h>
-#include "citadel.h"
-#include "server.h"
-#include "citserver.h"
-#include "support.h"
-#include "config.h"
-#include "control.h"
-#include "user_ops.h"
-#include "database.h"
-#include "msgbase.h"
-#include "internet_addressing.h"
-#include "genstamp.h"
-#include "domain.h"
-#include "clientsocket.h"
-#include "locate_host.h"
-#include "citadel_dirs.h"
+#include "ctdl_module.h"
#include "event_client.h"
+#include "citserver.h"
+#include "config.h"
-static void IO_abort_shutdown_callback(struct ev_loop *loop, ev_cleanup *watcher, int revents)
+ConstStr IOStates[] = {
+ {HKEY("DB Queue")},
+ {HKEY("DB Q Next")},
+ {HKEY("DB Attach")},
+ {HKEY("DB Next")},
+ {HKEY("DB Stop")},
+ {HKEY("DB Exit")},
+ {HKEY("DB Terminate")},
+ {HKEY("IO Queue")},
+ {HKEY("IO Attach")},
+ {HKEY("IO Connect Socket")},
+ {HKEY("IO Abort")},
+ {HKEY("IO Timeout")},
+ {HKEY("IO ConnFail")},
+ {HKEY("IO ConnFail Now")},
+ {HKEY("IO Conn Now")},
+ {HKEY("IO Conn Wait")},
+ {HKEY("Curl Q")},
+ {HKEY("Curl Start")},
+ {HKEY("Curl Shotdown")},
+ {HKEY("Curl More IO")},
+ {HKEY("Curl Got IO")},
+ {HKEY("Curl Got Data")},
+ {HKEY("Curl Got Status")},
+ {HKEY("C-Ares Start")},
+ {HKEY("C-Ares IO Done")},
+ {HKEY("C-Ares Finished")},
+ {HKEY("C-Ares exit")},
+ {HKEY("Killing")},
+ {HKEY("Exit")}
+};
+
+void SetEVState(AsyncIO *IO, eIOState State)
{
- AsyncIO *IO = watcher->data;
- EV_syslog(LOG_DEBUG, "EVENT Q: %s\n", __FUNCTION__);
- assert(IO->ShutdownAbort);
- IO->ShutdownAbort(IO);
+ CitContext* CCC = IO->CitContext;
+ if (CCC != NULL)
+ memcpy(CCC->lastcmdname, IOStates[State].Key, IOStates[State].len + 1);
+
}
+eNextState QueueAnEventContext(AsyncIO *IO);
+static void IO_Timeout_callback(struct ev_loop *loop, ev_timer *watcher, int revents);
+static void IO_abort_shutdown_callback(struct ev_loop *loop,
+ ev_cleanup *watcher,
+ int revents);
-/*--------------------------------------------------------------------------------
- * Server DB IO
- */
+
+/*------------------------------------------------------------------------------
+ * Server DB IO
+ *----------------------------------------------------------------------------*/
extern int evdb_count;
extern pthread_mutex_t DBEventQueueMutex;
+extern pthread_mutex_t DBEventExitQueueMutex;
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)
+eNextState QueueAnDBOperation(AsyncIO *IO)
{
IOAddHandler *h;
int i;
+ SetEVState(IO, eDBQ);
h = (IOAddHandler*)malloc(sizeof(IOAddHandler));
h->IO = IO;
- h->EvAttch = CB;
- ev_cleanup_init(&IO->db_abort_by_shutdown,
+
+ assert(IO->ReAttachCB != NULL);
+
+ h->EvAttch = IO->ReAttachCB;
+ 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);
pthread_mutex_lock(&DBEventQueueMutex);
+ if (DBInboundEventQueue == NULL)
+ {
+ /* shutting down... */
+ free(h);
+ EVM_syslog(LOG_DEBUG, "DBEVENT Q exiting.\n");
+ pthread_mutex_unlock(&DBEventQueueMutex);
+ return eAbort;
+ }
EVM_syslog(LOG_DEBUG, "DBEVENT Q\n");
i = ++evdb_count ;
Put(DBInboundEventQueue, IKEY(i), h, NULL);
pthread_mutex_unlock(&DBEventQueueMutex);
+ pthread_mutex_lock(&DBEventExitQueueMutex);
+ if (event_db == NULL)
+ {
+ pthread_mutex_unlock(&DBEventExitQueueMutex);
+ return eAbort;
+ }
ev_async_send (event_db, &DBAddJob);
- EVM_syslog(LOG_DEBUG, "DBEVENT Q Done.\n");
+ pthread_mutex_unlock(&DBEventExitQueueMutex);
+
+ EVQM_syslog(LOG_DEBUG, "DBEVENT Q Done.\n");
return eDBQuery;
}
+void StopDBWatchers(AsyncIO *IO)
+{
+ SetEVState(IO, eDBStop);
+ ev_cleanup_stop(event_db, &IO->db_abort_by_shutdown);
+ ev_idle_stop(event_db, &IO->db_unwind_stack);
+}
+
void ShutDownDBCLient(AsyncIO *IO)
{
CitContext *Ctx =IO->CitContext;
become_session(Ctx);
+ SetEVState(IO, eDBTerm);
EVM_syslog(LOG_DEBUG, "DBEVENT Terminating.\n");
- ev_cleanup_stop(event_db, &IO->db_abort_by_shutdown);
-
- assert(IO->Terminate);
- IO->Terminate(IO);
+ StopDBWatchers(IO);
- Ctx->state = CON_IDLE;
- Ctx->kill_me = 1;
+ assert(IO->DBTerminate);
+ IO->DBTerminate(IO);
}
void
DB_PerformNext(struct ev_loop *loop, ev_idle *watcher, int revents)
{
AsyncIO *IO = watcher->data;
- EV_syslog(LOG_DEBUG, "event: %s\n", __FUNCTION__);
+
+ SetEVState(IO, eDBNext);
+ SET_EV_TIME(IO, event_db);
+ EV_syslog(LOG_DEBUG, "%s()", __FUNCTION__);
become_session(IO->CitContext);
-
+
ev_idle_stop(event_db, &IO->db_unwind_stack);
assert(IO->NextDBOperation);
switch (IO->NextDBOperation(IO))
{
+ case eSendReply:
+ ev_cleanup_stop(loop, &IO->db_abort_by_shutdown);
+ QueueAnEventContext(IO);
+ break;
case eDBQuery:
break;
case eSendDNSQuery:
case eReadDNSReply:
case eConnect:
- case eSendReply:
case eSendMore:
case eSendFile:
- case eReadMessage:
+ case eReadMessage:
case eReadMore:
case eReadPayload:
case eReadFile:
eNextState NextDBOperation(AsyncIO *IO, IO_CallBack CB)
{
+ SetEVState(IO, eQDBNext);
IO->NextDBOperation = CB;
ev_idle_init(&IO->db_unwind_stack,
DB_PerformNext);
return eDBQuery;
}
-/*--------------------------------------------------------------------------------
- * Client IO
- */
+/*------------------------------------------------------------------------------
+ * Client IO
+ *----------------------------------------------------------------------------*/
extern int evbase_count;
extern pthread_mutex_t EventQueueMutex;
+extern pthread_mutex_t EventExitQueueMutex;
extern HashList *InboundEventQueue;
extern struct ev_loop *event_base;
-extern ev_async AddJob;
+extern ev_async AddJob;
extern ev_async ExitEventLoop;
+static void IO_abort_shutdown_callback(struct ev_loop *loop,
+ ev_cleanup *watcher,
+ int revents)
+{
+ AsyncIO *IO = watcher->data;
-eNextState QueueEventContext(AsyncIO *IO, IO_CallBack CB)
+ SetEVState(IO, eIOAbort);
+ EV_syslog(LOG_DEBUG, "EVENT Q: %s\n", __FUNCTION__);
+ SET_EV_TIME(IO, event_base);
+ assert(IO->ShutdownAbort);
+ IO->ShutdownAbort(IO);
+}
+
+
+eNextState QueueAnEventContext(AsyncIO *IO)
{
IOAddHandler *h;
int i;
+ SetEVState(IO, eIOQ);
h = (IOAddHandler*)malloc(sizeof(IOAddHandler));
h->IO = IO;
- h->EvAttch = CB;
- ev_cleanup_init(&IO->abort_by_shutdown,
+
+ assert(IO->ReAttachCB != NULL);
+
+ h->EvAttch = IO->ReAttachCB;
+
+ 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);
pthread_mutex_lock(&EventQueueMutex);
+ if (InboundEventQueue == NULL)
+ {
+ free(h);
+ /* shutting down... */
+ EVM_syslog(LOG_DEBUG, "EVENT Q exiting.\n");
+ pthread_mutex_unlock(&EventQueueMutex);
+ return eAbort;
+ }
EVM_syslog(LOG_DEBUG, "EVENT Q\n");
i = ++evbase_count;
Put(InboundEventQueue, IKEY(i), h, NULL);
pthread_mutex_unlock(&EventQueueMutex);
+ pthread_mutex_lock(&EventExitQueueMutex);
+ if (event_base == NULL) {
+ pthread_mutex_unlock(&EventExitQueueMutex);
+ return eAbort;
+ }
ev_async_send (event_base, &AddJob);
+ pthread_mutex_unlock(&EventExitQueueMutex);
EVM_syslog(LOG_DEBUG, "EVENT Q Done.\n");
return eSendReply;
}
+eNextState EventQueueDBOperation(AsyncIO *IO, IO_CallBack CB, int CloseFDs)
+{
+ StopClientWatchers(IO, CloseFDs);
+ IO->ReAttachCB = CB;
+ return eDBQuery;
+}
+eNextState DBQueueEventContext(AsyncIO *IO, IO_CallBack CB)
+{
+ StopDBWatchers(IO);
+ IO->ReAttachCB = CB;
+ return eSendReply;
+}
+
+eNextState QueueEventContext(AsyncIO *IO, IO_CallBack CB)
+{
+ IO->ReAttachCB = CB;
+ return QueueAnEventContext(IO);
+}
+
extern eNextState evcurl_handle_start(AsyncIO *IO);
eNextState QueueCurlContext(AsyncIO *IO)
IOAddHandler *h;
int i;
+ SetEVState(IO, eCurlQ);
h = (IOAddHandler*)malloc(sizeof(IOAddHandler));
h->IO = IO;
h->EvAttch = evcurl_handle_start;
pthread_mutex_lock(&EventQueueMutex);
+ if (InboundEventQueue == NULL)
+ {
+ /* shutting down... */
+ free(h);
+ EVM_syslog(LOG_DEBUG, "EVENT Q exiting.\n");
+ pthread_mutex_unlock(&EventQueueMutex);
+ return eAbort;
+ }
+
EVM_syslog(LOG_DEBUG, "EVENT Q\n");
i = ++evbase_count;
Put(InboundEventQueue, IKEY(i), h, NULL);
pthread_mutex_unlock(&EventQueueMutex);
+ pthread_mutex_lock(&EventExitQueueMutex);
+ if (event_base == NULL) {
+ pthread_mutex_unlock(&EventExitQueueMutex);
+ return eAbort;
+ }
ev_async_send (event_base, &AddJob);
+ pthread_mutex_unlock(&EventExitQueueMutex);
+
EVM_syslog(LOG_DEBUG, "EVENT Q Done.\n");
return eSendReply;
}
+eNextState CurlQueueDBOperation(AsyncIO *IO, IO_CallBack CB)
+{
+ StopCurlWatchers(IO);
+ IO->ReAttachCB = CB;
+ return eDBQuery;
+}
+
+
void FreeAsyncIOContents(AsyncIO *IO)
{
+ CitContext *Ctx = IO->CitContext;
+
FreeStrBuf(&IO->IOBuf);
FreeStrBuf(&IO->SendBuf.Buf);
FreeStrBuf(&IO->RecvBuf.Buf);
+
+ FreeURL(&IO->ConnectMe);
+ FreeStrBuf(&IO->HttpReq.ReplyData);
+
+ if (Ctx) {
+ Ctx->state = CON_IDLE;
+ Ctx->kill_me = 1;
+ IO->CitContext = NULL;
+ }
}
-void StopClientWatchers(AsyncIO *IO)
+void DestructCAres(AsyncIO *IO);
+void StopClientWatchers(AsyncIO *IO, int CloseFD)
{
+ EVM_syslog(LOG_DEBUG, "EVENT StopClientWatchers");
+
+ DestructCAres(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_cleanup_stop(event_base, &IO->abort_by_shutdown);
+ ev_io_stop(event_base, &IO->conn_event);
ev_io_stop(event_base, &IO->send_event);
ev_io_stop(event_base, &IO->recv_event);
+
+ if (CloseFD && (IO->SendBuf.fd > 0)) {
+ close(IO->SendBuf.fd);
+ IO->SendBuf.fd = 0;
+ IO->RecvBuf.fd = 0;
+ }
+}
+
+void StopCurlWatchers(AsyncIO *IO)
+{
+ EVM_syslog(LOG_DEBUG, "EVENT StopCurlWatchers \n");
+
ev_timer_stop (event_base, &IO->rw_timeout);
- close(IO->SendBuf.fd);
+ ev_timer_stop(event_base, &IO->conn_fail);
+ ev_idle_stop(event_base, &IO->unwind_stack);
+ ev_cleanup_stop(event_base, &IO->abort_by_shutdown);
+
+ ev_io_stop(event_base, &IO->conn_event);
+ ev_io_stop(event_base, &IO->send_event);
+ ev_io_stop(event_base, &IO->recv_event);
+
+ curl_easy_cleanup(IO->HttpReq.chnd);
+ IO->HttpReq.chnd = NULL;
+
+ if (IO->SendBuf.fd != 0) {
+ close(IO->SendBuf.fd);
+ }
IO->SendBuf.fd = 0;
IO->RecvBuf.fd = 0;
}
-void ShutDownCLient(AsyncIO *IO)
+eNextState ShutDownCLient(AsyncIO *IO)
{
CitContext *Ctx =IO->CitContext;
+
+ SetEVState(IO, eExit);
become_session(Ctx);
EVM_syslog(LOG_DEBUG, "EVENT Terminating \n");
- ev_cleanup_stop(event_base, &IO->abort_by_shutdown);
- StopClientWatchers(IO);
+ StopClientWatchers(IO, 1);
if (IO->DNS.Channel != NULL) {
ares_destroy(IO->DNS.Channel);
+ EV_DNS_LOG_STOP(DNS.recv_event);
+ EV_DNS_LOG_STOP(DNS.send_event);
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;
+ return IO->Terminate(IO);
}
-
-eReadState HandleInbound(AsyncIO *IO)
+void PostInbound(AsyncIO *IO)
{
- const char *Err = NULL;
- eReadState Finished = eBufferNotEmpty;
-
- become_session(IO->CitContext);
-
- 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))
- {
- 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;
- }
-
- }
-
- if (Finished != eMustReadMore) {
- assert(IO->ReadDone);
- ev_io_stop(event_base, &IO->recv_event);
- IO->NextState = IO->ReadDone(IO);
- Finished = StrBufCheckBuffer(&IO->RecvBuf);
- }
- }
switch (IO->NextState) {
case eSendFile:
case eSendMore:
assert(IO->SendDone);
IO->NextState = IO->SendDone(IO);
- ev_io_start(event_base, &IO->send_event);
+ switch (IO->NextState)
+ {
+ case eSendFile:
+ case eSendReply:
+ case eSendMore:
+ case eReadMessage:
+ case eReadPayload:
+ case eReadMore:
+ case eReadFile:
+ ev_io_start(event_base, &IO->send_event);
+ break;
+ case eDBQuery:
+ StopClientWatchers(IO, 0);
+ QueueAnDBOperation(IO);
+ default:
+ break;
+ }
break;
case eReadPayload:
case eReadMore:
ev_io_start(event_base, &IO->recv_event);
break;
case eTerminateConnection:
-//////TODOxxxx
- break;
case eAbort:
- ShutDownCLient(IO);
+ if (ShutDownCLient(IO) == eDBQuery) {
+ QueueAnDBOperation(IO);
+ }
break;
case eSendDNSQuery:
case eReadDNSReply:
- case eDBQuery:
case eConnect:
case eReadMessage:
break;
+ case eDBQuery:
+ QueueAnDBOperation(IO);
}
+}
+eReadState HandleInbound(AsyncIO *IO)
+{
+ const char *Err = NULL;
+ eReadState Finished = eBufferNotEmpty;
+
+ become_session(IO->CitContext);
+
+ while ((Finished == eBufferNotEmpty) &&
+ ((IO->NextState == eReadMessage)||
+ (IO->NextState == eReadMore)||
+ (IO->NextState == eReadFile)||
+ (IO->NextState == eReadPayload)))
+ {
+ /* 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)
+ {
+ 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) {
+ ev_io_stop(event_base, &IO->recv_event);
+ IO->NextState = IO->ReadDone(IO);
+ if (IO->NextState == eDBQuery) {
+ if (QueueAnDBOperation(IO) == eAbort)
+ return eReadFail;
+ else
+ return eReadSuccess;
+ }
+ else {
+ Finished = StrBufCheckBuffer(&IO->RecvBuf);
+ }
+ }
+ }
+
+ PostInbound(IO);
+
return Finished;
}
AsyncIO *IO = watcher->data;
const char *errmsg = NULL;
+ SET_EV_TIME(IO, event_base);
become_session(IO->CitContext);
#ifdef BIGBAD_IODBG
{
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+");
+ if (fd == NULL) {
+ syslog(LOG_EMERG, "failed to open file %s: %s", fn, strerror(errno));
+ cit_backtrace();
+ exit(1);
+ }
fprintf(fd, "Send: BufSize: %ld BufContent: [",
nbytes);
rv = fwrite(pchh, nbytes, 1, fd);
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(IO->SendBuf.fd,
+ 0,
+ &IO->SendBuf);
}
#ifdef BIGBAD_IODBG
case eSendFile:
if (IO->IOB.ChunkSendRemain > 0) {
ev_io_start(event_base, &IO->recv_event);
+ SetNextTimeout(IO, 100.0);
+
} else {
assert(IO->ReadDone);
IO->NextState = IO->ReadDone(IO);
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:
}
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 {
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:
}
}
else if (rc < 0) {
- assert(IO->Timeout);
- IO->Timeout(IO);
+ if (errno != EAGAIN) {
+ StopClientWatchers(IO, 1);
+ EV_syslog(LOG_DEBUG,
+ "IO_send_callback(): Socket Invalid! [%d] [%s] [%d]\n",
+ errno, strerror(errno), IO->SendBuf.fd);
+ StrBufPrintf(IO->ErrMsg,
+ "Socket Invalid! [%s]",
+ strerror(errno));
+ SetNextTimeout(IO, 0.01);
+ }
}
/* else : must write more. */
}
static void
set_start_callback(struct ev_loop *loop, AsyncIO *IO, int revents)
{
-
+ ev_timer_stop(event_base, &IO->conn_fail);
+ ev_timer_start(event_base, &IO->rw_timeout);
+
switch(IO->NextState) {
case eReadMore:
case eReadMessage:
case eReadFile:
+ StrBufAppendBufPlain(IO->ErrMsg, HKEY("[while waiting for greeting]"), 0);
ev_io_start(event_base, &IO->recv_event);
break;
case eSendReply:
{
AsyncIO *IO = watcher->data;
+ SetEVState(IO, eIOTimeout);
+ SET_EV_TIME(IO, event_base);
ev_timer_stop (event_base, &IO->rw_timeout);
become_session(IO->CitContext);
}
assert(IO->Timeout);
- switch (IO->Timeout(IO))
+ switch (IO->Timeout(IO))
{
case eAbort:
ShutDownCLient(IO);
{
AsyncIO *IO = watcher->data;
+ SetEVState(IO, eIOConnfail);
+ SET_EV_TIME(IO, event_base);
ev_timer_stop (event_base, &IO->conn_fail);
if (IO->SendBuf.fd != 0)
become_session(IO->CitContext);
assert(IO->ConnFail);
- switch (IO->ConnFail(IO))
+ switch (IO->ConnFail(IO))
{
case eAbort:
ShutDownCLient(IO);
}
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;
+ SetEVState(IO, eIOConnfailNow);
+ SET_EV_TIME(IO, event_base);
ev_idle_stop (event_base, &IO->conn_fail_immediate);
if (IO->SendBuf.fd != 0)
become_session(IO->CitContext);
assert(IO->ConnFail);
- switch (IO->ConnFail(IO))
+ switch (IO->ConnFail(IO))
{
case eAbort:
ShutDownCLient(IO);
static void
IO_connestd_callback(struct ev_loop *loop, ev_io *watcher, int revents)
{
- AsyncIO *IO = watcher->data;
-
- ev_io_stop(loop, &IO->conn_event);
- ev_timer_stop (event_base, &IO->conn_fail);
- set_start_callback(loop, IO, revents);
+ AsyncIO *IO = watcher->data;
+ int so_err = 0;
+ socklen_t lon = sizeof(so_err);
+ int err;
+
+ SetEVState(IO, eIOConnNow);
+ SET_EV_TIME(IO, event_base);
+ EVM_syslog(LOG_DEBUG, "connect() succeeded.\n");
+
+ ev_io_stop(loop, &IO->conn_event);
+ ev_timer_stop(event_base, &IO->conn_fail);
+
+ err = getsockopt(IO->SendBuf.fd,
+ SOL_SOCKET,
+ SO_ERROR,
+ (void*)&so_err,
+ &lon);
+
+ if ((err == 0) && (so_err != 0))
+ {
+ EV_syslog(LOG_DEBUG, "connect() failed [%d][%s]\n",
+ so_err,
+ strerror(so_err));
+ IO_connfail_callback(loop, &IO->conn_fail, revents);
+
+ }
+ else
+ {
+ EVM_syslog(LOG_DEBUG, "connect() succeeded\n");
+ set_start_callback(loop, IO, revents);
+ }
}
+
static void
IO_recv_callback(struct ev_loop *loop, ev_io *watcher, int revents)
{
ssize_t nbytes;
AsyncIO *IO = watcher->data;
+ SET_EV_TIME(IO, event_base);
switch (IO->NextState) {
case eReadFile:
nbytes = FileRecvChunked(&IO->IOB, &errmsg);
if (nbytes < 0)
StrBufPlain(IO->ErrMsg, errmsg, -1);
- else
+ else
{
if (IO->IOB.ChunkSendRemain == 0)
{
IO->NextState = eSendReply;
+ assert(IO->ReadDone);
+ ev_io_stop(event_base, &IO->recv_event);
+ PostInbound(IO);
+ return;
}
else
return;
}
break;
default:
- nbytes = StrBuf_read_one_chunk_callback(watcher->fd, 0 /*TODO */, &IO->RecvBuf);
+ nbytes = StrBuf_read_one_chunk_callback(IO->RecvBuf.fd,
+ 0,
+ &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+");
+ if (fd == NULL) {
+ syslog(LOG_EMERG, "failed to open file %s: %s", fn, strerror(errno));
+ cit_backtrace();
+ exit(1);
+ }
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
if (nbytes > 0) {
HandleInbound(IO);
} else if (nbytes == 0) {
- assert(IO->Timeout);
-
- switch (IO->Timeout(IO))
- {
- case eAbort:
- ShutDownCLient(IO);
- default:
- break;
- }
+ StopClientWatchers(IO, 1);
+ SetNextTimeout(IO, 0.01);
return;
} else if (nbytes == -1) {
-/// TODO: FD is gone. kick it. sock_buff_invoke_free(sb, errno);
- EV_syslog(LOG_DEBUG,
- "EVENT: Socket Invalid! %s \n",
- strerror(errno));
- ShutDownCLient(IO);
+ if (errno != EAGAIN) {
+ // FD is gone. kick it.
+ StopClientWatchers(IO, 1);
+ EV_syslog(LOG_DEBUG,
+ "IO_recv_callback(): Socket Invalid! [%d] [%s] [%d]\n",
+ errno, strerror(errno), IO->SendBuf.fd);
+ StrBufPrintf(IO->ErrMsg,
+ "Socket Invalid! [%s]",
+ strerror(errno));
+ SetNextTimeout(IO, 0.01);
+ }
return;
}
}
IO_postdns_callback(struct ev_loop *loop, ev_idle *watcher, int revents)
{
AsyncIO *IO = watcher->data;
+
+ SetEVState(IO, eCaresFinished);
+ SET_EV_TIME(IO, event_base);
EV_syslog(LOG_DEBUG, "event: %s\n", __FUNCTION__);
become_session(IO->CitContext);
- assert(IO->DNS.Fail);
assert(IO->DNS.Query->PostDNS);
switch (IO->DNS.Query->PostDNS(IO))
{
case eAbort:
+ assert(IO->DNS.Fail);
switch (IO->DNS.Fail(IO)) {
case eAbort:
+//// StopClientWatchers(IO);
ShutDownCLient(IO);
+ break;
+ case eDBQuery:
+ StopClientWatchers(IO, 0);
+ QueueAnDBOperation(IO);
+ break;
default:
break;
}
+ case eDBQuery:
+ StopClientWatchers(IO, 0);
+ QueueAnDBOperation(IO);
+ break;
default:
break;
}
double first_rw_timeout,
int ReadFirst)
{
+ struct sockaddr_in egress_sin;
int fdflags;
int rc = -1;
+ SetEVState(IO, eIOConnectSock);
become_session(IO->CitContext);
if (ReadFirst) {
StrBufPrintf(IO->ErrMsg,
"Failed to create socket: %s",
strerror(errno));
+ IO->SendBuf.fd = IO->RecvBuf.fd = 0;
return eAbort;
}
fdflags = fcntl(IO->SendBuf.fd, F_GETFL);
if (fdflags < 0) {
- EV_syslog(LOG_DEBUG,
- "EVENT: unable to get socket flags! %s \n",
+ EV_syslog(LOG_ERR,
+ "EVENT: unable to get socket %d flags! %s \n",
+ IO->SendBuf.fd,
strerror(errno));
StrBufPrintf(IO->ErrMsg,
- "Failed to get socket flags: %s",
+ "Failed to get socket %d flags: %s",
+ IO->SendBuf.fd,
strerror(errno));
+ close(IO->SendBuf.fd);
+ IO->SendBuf.fd = IO->RecvBuf.fd = 0;
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",
+ LOG_ERR,
+ "EVENT: unable to set socket %d nonblocking flags! %s \n",
+ IO->SendBuf.fd,
strerror(errno));
StrBufPrintf(IO->ErrMsg,
"Failed to set socket flags: %s",
strerror(errno));
close(IO->SendBuf.fd);
- IO->SendBuf.fd = IO->RecvBuf.fd = -1;
+ IO->SendBuf.fd = IO->RecvBuf.fd = 0;
return eAbort;
}
/* TODO: maye we could use offsetof() to calc the position of data...
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");
- if (IO->ConnectMe->IPv6)
+
+
+ /* 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));
- else
+ }
+ else {
+ /* If citserver is bound to a specific IP address on the host, make
+ * sure we use that address for outbound connections.
+ */
+
+ memset(&egress_sin, 0, sizeof(egress_sin));
+ egress_sin.sin_family = AF_INET;
+ if (!IsEmptyStr(CtdlGetConfigStr("c_ip_addr"))) {
+ egress_sin.sin_addr.s_addr = inet_addr(CtdlGetConfigStr("c_ip_addr"));
+ if (egress_sin.sin_addr.s_addr == !INADDR_ANY) {
+ egress_sin.sin_addr.s_addr = INADDR_ANY;
+ }
+
+ /* If this bind fails, no problem; we can still use INADDR_ANY */
+ bind(IO->SendBuf.fd, (struct sockaddr *)&egress_sin, sizeof(egress_sin));
+ }
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");
+ SetEVState(IO, eIOConnNow);
+ EV_syslog(LOG_DEBUG, "connect() = %d immediate success.\n", IO->SendBuf.fd);
set_start_callback(event_base, IO, 0);
- ev_timer_start(event_base, &IO->rw_timeout);
return IO->NextState;
}
else if (errno == EINPROGRESS) {
- EVM_syslog(LOG_DEBUG, "connect() have to wait now.\n");
+ SetEVState(IO, eIOConnWait);
+ EV_syslog(LOG_DEBUG, "connect() = %d have to wait now.\n", IO->SendBuf.fd);
ev_io_init(&IO->conn_event,
IO_connestd_callback,
return IO->NextState;
}
else {
+ SetEVState(IO, eIOConnfail);
ev_idle_init(&IO->conn_fail_immediate,
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));
+ EV_syslog(LOG_ERR,
+ "connect() = %d failed: %s\n",
+ IO->SendBuf.fd,
+ strerror(errno));
+
StrBufPrintf(IO->ErrMsg,
"Failed to connect: %s",
strerror(errno));
void *pData,
int ReadFirst)
{
+ SetEVState(IO, eIOAttach);
IO->Data = pData;
become_session(IO->CitContext);
ev_cleanup_start(event_base, &IO->abort_by_shutdown);
IO_CallBack SendDone,
IO_CallBack ReadDone,
IO_CallBack Terminate,
+ IO_CallBack DBTerminate,
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->CitContext->session_specific_data = Data;
+ IO->CitContext->IO = IO;
IO->NextState = NextState;
IO->SendDone = SendDone;
IO->ReadDone = ReadDone;
IO->Terminate = Terminate;
+ IO->DBTerminate = DBTerminate;
IO->LineReader = LineReader;
IO->ConnFail = ConnFail;
IO->Timeout = Timeout;
IO->SendBuf.Buf = NewStrBufPlain(NULL, 1024);
IO->RecvBuf.Buf = NewStrBufPlain(NULL, 1024);
IO->IOBuf = NewStrBuf();
+ EV_syslog(LOG_DEBUG,
+ "EVENT: Session lives at %p IO at %p \n",
+ Data, IO);
}
const char* Desc,
IO_CallBack SendDone,
IO_CallBack Terminate,
+ IO_CallBack DBTerminate,
IO_CallBack ShutdownAbort)
{
IO->Data = Data;
IO->CitContext = CloneContext(CC);
- ((CitContext *)IO->CitContext)->session_specific_data = (char*) Data;
+ IO->CitContext->session_specific_data = Data;
+ IO->CitContext->IO = IO;
- IO->SendDone = SendDone;
- IO->Terminate = Terminate;
+ IO->SendDone = SendDone;
+ IO->Terminate = Terminate;
+ IO->DBTerminate = DBTerminate;
IO->ShutdownAbort = ShutdownAbort;
strcpy(IO->HttpReq.errdesc, Desc);
return evcurl_init(IO);
}
+
+
+typedef struct KillOtherSessionContext {
+ AsyncIO IO;
+ AsyncIO *OtherOne;
+}KillOtherSessionContext;
+
+eNextState KillTerminate(AsyncIO *IO)
+{
+ long id;
+ KillOtherSessionContext *Ctx = (KillOtherSessionContext*)IO->Data;
+ EV_syslog(LOG_DEBUG, "%s Exit\n", __FUNCTION__);
+ id = IO->ID;
+ FreeAsyncIOContents(IO);
+ memset(Ctx, 0, sizeof(KillOtherSessionContext));
+ IO->ID = id; /* just for the case we want to analyze it in a coredump */
+ free(Ctx);
+ return eAbort;
+
+}
+
+eNextState KillShutdown(AsyncIO *IO)
+{
+ return eTerminateConnection;
+}
+
+eNextState KillOtherContextNow(AsyncIO *IO)
+{
+ KillOtherSessionContext *Ctx = IO->Data;
+
+ SetEVState(IO, eKill);
+
+ if (Ctx->OtherOne->ShutdownAbort != NULL) {
+ Ctx->OtherOne->NextState = eAbort;
+ if (Ctx->OtherOne->ShutdownAbort(Ctx->OtherOne) == eDBQuery) {
+ StopClientWatchers(Ctx->OtherOne, 0);
+ QueueAnDBOperation(Ctx->OtherOne);
+ }
+ }
+ return eTerminateConnection;
+}
+
+void KillAsyncIOContext(AsyncIO *IO)
+{
+ KillOtherSessionContext *Ctx;
+
+ Ctx = (KillOtherSessionContext*) malloc(sizeof(KillOtherSessionContext));
+ memset(Ctx, 0, sizeof(KillOtherSessionContext));
+
+ InitIOStruct(&Ctx->IO,
+ Ctx,
+ eReadMessage,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ KillTerminate,
+ NULL,
+ NULL,
+ NULL,
+ KillShutdown);
+
+ Ctx->OtherOne = IO;
+
+ switch(IO->NextState) {
+ case eSendDNSQuery:
+ case eReadDNSReply:
+
+ case eConnect:
+ case eSendReply:
+ case eSendMore:
+ case eSendFile:
+
+ case eReadMessage:
+ case eReadMore:
+ case eReadPayload:
+ case eReadFile:
+ Ctx->IO.ReAttachCB = KillOtherContextNow;
+ QueueAnEventContext(&Ctx->IO);
+ break;
+ case eDBQuery:
+ Ctx->IO.ReAttachCB = KillOtherContextNow;
+ QueueAnDBOperation(&Ctx->IO);
+ break;
+ case eTerminateConnection:
+ case eAbort:
+ /*hm, its already dying, dunno which Queue its in... */
+ free(Ctx);
+ }
+
+}
+
+extern int DebugEventLoopBacktrace;
+void EV_backtrace(AsyncIO *IO)
+{
+#ifdef HAVE_BACKTRACE
+ void *stack_frames[50];
+ size_t size, i;
+ char **strings;
+
+ if ((IO == NULL) || (DebugEventLoopBacktrace == 0))
+ return;
+ size = backtrace(stack_frames, sizeof(stack_frames) / sizeof(void*));
+ strings = backtrace_symbols(stack_frames, size);
+ for (i = 0; i < size; i++) {
+ if (strings != NULL) {
+ EV_syslog(LOG_ALERT, " BT %s\n", strings[i]);
+ }
+ else {
+ EV_syslog(LOG_ALERT, " BT %p\n", stack_frames[i]);
+ }
+ }
+ free(strings);
+#endif
+}
+
+
+ev_tstamp ctdl_ev_now (void)
+{
+ return ev_now(event_base);
+}