3 * Copyright (c) 1998-2009 by the citadel.org team
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 3 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
29 #include <sys/types.h>
32 #if TIME_WITH_SYS_TIME
33 # include <sys/time.h>
37 # include <sys/time.h>
46 #include <sys/socket.h>
47 #include <netinet/in.h>
48 #include <arpa/inet.h>
51 #include <libcitadel.h>
54 #include "citserver.h"
61 #include "internet_addressing.h"
64 #include "clientsocket.h"
65 #include "locate_host.h"
66 #include "citadel_dirs.h"
68 #include "event_client.h"
70 extern citthread_mutex_t EventQueueMutex;
71 extern HashList *InboundEventQueue;
72 extern struct ev_loop *event_base;
73 extern ev_async AddJob;
74 extern ev_async ExitEventLoop;
77 IO_abort_shutdown_callback(struct ev_loop *loop, ev_cleanup *watcher, int revents)
79 CtdlLogPrintf(CTDL_DEBUG, "EVENT Q: %s\n", __FUNCTION__);
81 AsyncIO *IO = watcher->data;
82 IO->ShutdownAbort(IO);
85 int QueueEventContext(AsyncIO *IO, IO_CallBack CB)
90 h = (IOAddHandler*)malloc(sizeof(IOAddHandler));
93 ev_cleanup_init(&IO->abort_by_shutdown,
94 IO_abort_shutdown_callback);
95 IO->abort_by_shutdown.data = IO;
96 ev_cleanup_start(event_base, &IO->abort_by_shutdown);
98 citthread_mutex_lock(&EventQueueMutex);
99 CtdlLogPrintf(CTDL_DEBUG, "EVENT Q\n");
100 i = GetCount(InboundEventQueue);
101 Put(InboundEventQueue, IKEY(i), h, NULL);
102 citthread_mutex_unlock(&EventQueueMutex);
104 ev_async_send (event_base, &AddJob);
105 CtdlLogPrintf(CTDL_DEBUG, "EVENT Q Done.\n");
110 int ShutDownEventQueue(void)
112 citthread_mutex_lock(&EventQueueMutex);
113 ev_async_send (EV_DEFAULT_ &ExitEventLoop);
114 citthread_mutex_unlock(&EventQueueMutex);
118 void FreeAsyncIOContents(AsyncIO *IO)
120 FreeStrBuf(&IO->IOBuf);
121 FreeStrBuf(&IO->SendBuf.Buf);
122 FreeStrBuf(&IO->RecvBuf.Buf);
126 void ShutDownCLient(AsyncIO *IO)
128 CtdlLogPrintf(CTDL_DEBUG, "EVENT x %d\n", IO->sock);
130 ev_cleanup_stop(event_base, &IO->abort_by_shutdown);
134 ev_io_stop(event_base, &IO->send_event);
135 ev_io_stop(event_base, &IO->recv_event);
136 ev_timer_stop (event_base, &IO->rw_timeout);
142 if (IO->DNSChannel != NULL) {
143 ares_destroy(IO->DNSChannel);
144 ev_io_stop(event_base, &IO->dns_recv_event);
145 ev_io_stop(event_base, &IO->dns_send_event);
146 IO->DNSChannel = NULL;
148 assert(IO->Terminate);
154 eReadState HandleInbound(AsyncIO *IO)
156 eReadState Finished = eBufferNotEmpty;
158 while ((Finished == eBufferNotEmpty) && (IO->NextState == eReadMessage)){
159 if (IO->RecvBuf.nBlobBytesWanted != 0) {
162 else { /* Reading lines... */
163 //// lex line reply in callback, or do it ourselves. as nnn-blabla means continue reading in SMTP
165 Finished = IO->LineReader(IO);
167 Finished = StrBufChunkSipLine(IO->IOBuf, &IO->RecvBuf);
170 case eMustReadMore: /// read new from socket...
173 case eBufferNotEmpty: /* shouldn't happen... */
174 case eReadSuccess: /// done for now...
176 case eReadFail: /// WHUT?
183 if (Finished != eMustReadMore) {
184 assert(IO->ReadDone);
185 ev_io_stop(event_base, &IO->recv_event);
186 IO->NextState = IO->ReadDone(IO);
187 Finished = StrBufCheckBuffer(&IO->RecvBuf);
192 if ((IO->NextState == eSendReply) ||
193 (IO->NextState == eSendMore))
195 assert(IO->SendDone);
196 IO->NextState = IO->SendDone(IO);
197 ev_io_start(event_base, &IO->send_event);
199 else if ((IO->NextState == eTerminateConnection) ||
200 (IO->NextState == eAbort) )
207 IO_send_callback(struct ev_loop *loop, ev_io *watcher, int revents)
210 AsyncIO *IO = watcher->data;
212 rc = StrBuf_write_one_chunk_callback(watcher->fd, 0/*TODO*/, &IO->SendBuf);
221 const char *pch = ChrPtr(IO->SendBuf.Buf);
222 const char *pchh = IO->SendBuf.ReadWritePointer;
228 nbytes = StrLength(IO->SendBuf.Buf) - (pchh - pch);
229 snprintf(fn, SIZ, "/tmp/foolog_ev_%s.%d", "smtpev", IO->sock);
231 fd = fopen(fn, "a+");
232 fprintf(fd, "Read: BufSize: %ld BufContent: [",
234 rv = fwrite(pchh, nbytes, 1, fd);
241 ev_io_stop(event_base, &IO->send_event);
242 switch (IO->NextState) {
246 assert(IO->SendDone);
247 IO->NextState = IO->SendDone(IO);
249 if ((IO->NextState == eTerminateConnection) ||
250 (IO->NextState == eAbort) )
253 ev_io_start(event_base, &IO->send_event);
257 if (StrBufCheckBuffer(&IO->RecvBuf) == eBufferNotEmpty) {
261 ev_io_start(event_base, &IO->recv_event);
265 case eTerminateConnection:
274 /* else : must write more. */
277 set_start_callback(struct ev_loop *loop, AsyncIO *IO, int revents)
280 switch(IO->NextState) {
282 ev_io_start(event_base, &IO->recv_event);
286 IO_send_callback(loop, &IO->send_event, revents);
288 case eTerminateConnection:
296 IO_Timout_callback(struct ev_loop *loop, ev_timer *watcher, int revents)
298 AsyncIO *IO = watcher->data;
300 ev_timer_stop (event_base, &IO->rw_timeout);
305 IO_connfail_callback(struct ev_loop *loop, ev_timer *watcher, int revents)
307 AsyncIO *IO = watcher->data;
309 ev_timer_stop (event_base, &IO->conn_fail);
310 ev_io_stop(loop, &IO->conn_event);
311 assert(IO->ConnFail);
315 IO_connestd_callback(struct ev_loop *loop, ev_io *watcher, int revents)
317 AsyncIO *IO = watcher->data;
319 ev_io_stop(loop, &IO->conn_event);
320 ev_timer_stop (event_base, &IO->conn_fail);
321 set_start_callback(loop, IO, revents);
324 IO_recv_callback(struct ev_loop *loop, ev_io *watcher, int revents)
327 AsyncIO *IO = watcher->data;
329 nbytes = StrBuf_read_one_chunk_callback(watcher->fd, 0 /*TODO */, &IO->RecvBuf);
332 } else if (nbytes == 0) {
334 IO->Timeout(IO); /* this is a timeout... */
336 } else if (nbytes == -1) {
337 /// TODO: FD is gone. kick it. sock_buff_invoke_free(sb, errno);
343 IO_postdns_callback(struct ev_loop *loop, ev_idle *watcher, int revents)
345 AsyncIO *IO = watcher->data;
346 CtdlLogPrintf(CTDL_DEBUG, "event: %s\n", __FUNCTION__);
348 IO->DNSQuery->PostDNS(IO);
351 eNextState event_connect_socket(AsyncIO *IO, double conn_timeout, double first_rw_timeout)
356 IO->SendBuf.fd = IO->RecvBuf.fd =
358 (IO->IP6)?PF_INET6:PF_INET,
363 CtdlLogPrintf(CTDL_ERR, "EVENT: socket() failed: %s\n", strerror(errno));
364 StrBufPrintf(IO->ErrMsg, "Failed to create socket: %s", strerror(errno));
365 // freeaddrinfo(res);
368 fdflags = fcntl(IO->sock, F_GETFL);
370 CtdlLogPrintf(CTDL_DEBUG,
371 "EVENT: unable to get socket flags! %s \n",
373 StrBufPrintf(IO->ErrMsg, "Failed to get socket flags: %s", strerror(errno));
376 fdflags = fdflags | O_NONBLOCK;
377 if (fcntl(IO->sock, F_SETFL, fdflags) < 0) {
378 CtdlLogPrintf(CTDL_DEBUG,
379 "EVENT: unable to set socket nonblocking flags! %s \n",
381 StrBufPrintf(IO->ErrMsg, "Failed to set socket flags: %s", strerror(errno));
385 /* TODO: maye we could use offsetof() to calc the position of data...
386 * http://doc.dvgu.ru/devel/ev.html#associating_custom_data_with_a_watcher
388 ev_io_init(&IO->recv_event, IO_recv_callback, IO->sock, EV_READ);
389 IO->recv_event.data = IO;
390 ev_io_init(&IO->send_event, IO_send_callback, IO->sock, EV_WRITE);
391 IO->send_event.data = IO;
393 ev_timer_init(&IO->conn_fail, IO_connfail_callback, conn_timeout, 0);
394 IO->conn_fail.data = IO;
395 ev_timer_init(&IO->rw_timeout, IO_Timout_callback, first_rw_timeout, 0);
396 IO->rw_timeout.data = IO;
399 rc = connect(IO->sock, IO->Addr, sizeof(struct sockaddr_in6));
401 rc = connect(IO->sock, (struct sockaddr_in *)IO->Addr, sizeof(struct sockaddr_in));
404 //// freeaddrinfo(res);
405 set_start_callback(event_base, IO, 0);
406 ev_timer_start(event_base, &IO->rw_timeout);
407 return IO->NextState;
409 else if (errno == EINPROGRESS) {
411 ev_io_init(&IO->conn_event, IO_connestd_callback, IO->sock, EV_READ|EV_WRITE);
412 IO->conn_event.data = IO;
414 ev_io_start(event_base, &IO->conn_event);
415 ev_timer_start(event_base, &IO->conn_fail);
416 return IO->NextState;
419 CtdlLogPrintf(CTDL_ERR, "connect() failed: %s\n", strerror(errno));
420 StrBufPrintf(IO->ErrMsg, "Failed to connect: %s", strerror(errno));
421 assert(IO->ConnFail);
425 return IO->NextState;
428 void SetNextTimeout(AsyncIO *IO, double timeout)
430 IO->rw_timeout.repeat = timeout;
431 ev_timer_again (event_base, &IO->rw_timeout);
434 eNextState InitEventIO(AsyncIO *IO,
437 double first_rw_timeout,
443 IO->NextState = eReadMessage;
446 IO->NextState = eSendReply;
448 return event_connect_socket(IO, conn_timeout, first_rw_timeout);