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);
132 ev_io_stop(event_base, &IO->send_event);
133 ev_io_stop(event_base, &IO->recv_event);
134 ev_timer_stop (event_base, &IO->rw_timeout);
140 if (IO->DNSChannel != NULL) {
141 ares_destroy(IO->DNSChannel);
142 ev_io_stop(event_base, &IO->dns_recv_event);
143 ev_io_stop(event_base, &IO->dns_send_event);
144 IO->DNSChannel = NULL;
146 assert(IO->Terminate);
152 eReadState HandleInbound(AsyncIO *IO)
154 eReadState Finished = eBufferNotEmpty;
156 while ((Finished == eBufferNotEmpty) && (IO->NextState == eReadMessage)){
157 if (IO->RecvBuf.nBlobBytesWanted != 0) {
160 else { /* Reading lines... */
161 //// lex line reply in callback, or do it ourselves. as nnn-blabla means continue reading in SMTP
163 Finished = IO->LineReader(IO);
165 Finished = StrBufChunkSipLine(IO->IOBuf, &IO->RecvBuf);
168 case eMustReadMore: /// read new from socket...
171 case eBufferNotEmpty: /* shouldn't happen... */
172 case eReadSuccess: /// done for now...
174 case eReadFail: /// WHUT?
181 if (Finished != eMustReadMore) {
182 assert(IO->ReadDone);
183 ev_io_stop(event_base, &IO->recv_event);
184 IO->NextState = IO->ReadDone(IO);
185 Finished = StrBufCheckBuffer(&IO->RecvBuf);
190 if ((IO->NextState == eSendReply) ||
191 (IO->NextState == eSendMore))
193 assert(IO->SendDone);
194 IO->NextState = IO->SendDone(IO);
195 ev_io_start(event_base, &IO->send_event);
197 else if ((IO->NextState == eTerminateConnection) ||
198 (IO->NextState == eAbort) )
205 IO_send_callback(struct ev_loop *loop, ev_io *watcher, int revents)
208 AsyncIO *IO = watcher->data;
210 rc = StrBuf_write_one_chunk_callback(watcher->fd, 0/*TODO*/, &IO->SendBuf);
219 const char *pch = ChrPtr(IO->SendBuf.Buf);
220 const char *pchh = IO->SendBuf.ReadWritePointer;
226 nbytes = StrLength(IO->SendBuf.Buf) - (pchh - pch);
227 snprintf(fn, SIZ, "/tmp/foolog_ev_%s.%d", "smtpev", IO->sock);
229 fd = fopen(fn, "a+");
230 fprintf(fd, "Read: BufSize: %ld BufContent: [",
232 rv = fwrite(pchh, nbytes, 1, fd);
239 ev_io_stop(event_base, &IO->send_event);
240 switch (IO->NextState) {
244 assert(IO->SendDone);
245 IO->NextState = IO->SendDone(IO);
247 if ((IO->NextState == eTerminateConnection) ||
248 (IO->NextState == eAbort) )
251 ev_io_start(event_base, &IO->send_event);
255 if (StrBufCheckBuffer(&IO->RecvBuf) == eBufferNotEmpty) {
259 ev_io_start(event_base, &IO->recv_event);
263 case eTerminateConnection:
272 /* else : must write more. */
275 set_start_callback(struct ev_loop *loop, AsyncIO *IO, int revents)
278 switch(IO->NextState) {
280 ev_io_start(event_base, &IO->recv_event);
284 IO_send_callback(loop, &IO->send_event, revents);
286 case eTerminateConnection:
294 IO_Timout_callback(struct ev_loop *loop, ev_timer *watcher, int revents)
296 AsyncIO *IO = watcher->data;
298 ev_timer_stop (event_base, &IO->rw_timeout);
303 IO_connfail_callback(struct ev_loop *loop, ev_timer *watcher, int revents)
305 AsyncIO *IO = watcher->data;
307 ev_timer_stop (event_base, &IO->conn_fail);
308 ev_io_stop(loop, &IO->conn_event);
309 assert(IO->ConnFail);
313 IO_connestd_callback(struct ev_loop *loop, ev_io *watcher, int revents)
315 AsyncIO *IO = watcher->data;
317 ev_io_stop(loop, &IO->conn_event);
318 ev_timer_stop (event_base, &IO->conn_fail);
319 set_start_callback(loop, IO, revents);
322 IO_recv_callback(struct ev_loop *loop, ev_io *watcher, int revents)
325 AsyncIO *IO = watcher->data;
327 nbytes = StrBuf_read_one_chunk_callback(watcher->fd, 0 /*TODO */, &IO->RecvBuf);
330 } else if (nbytes == 0) {
332 IO->Timeout(IO); /* this is a timeout... */
334 } else if (nbytes == -1) {
335 /// TODO: FD is gone. kick it. sock_buff_invoke_free(sb, errno);
341 IO_postdns_callback(struct ev_loop *loop, ev_timer *watcher, int revents)
343 AsyncIO *IO = watcher->data;
344 CtdlLogPrintf(CTDL_DEBUG, "event: %s\n", __FUNCTION__);
349 eNextState event_connect_socket(AsyncIO *IO, double conn_timeout, double first_rw_timeout)
354 IO->SendBuf.fd = IO->RecvBuf.fd =
356 (IO->IP6)?PF_INET6:PF_INET,
361 CtdlLogPrintf(CTDL_ERR, "EVENT: socket() failed: %s\n", strerror(errno));
362 StrBufPrintf(IO->ErrMsg, "Failed to create socket: %s", strerror(errno));
363 // freeaddrinfo(res);
366 fdflags = fcntl(IO->sock, F_GETFL);
368 CtdlLogPrintf(CTDL_DEBUG,
369 "EVENT: unable to get socket flags! %s \n",
371 StrBufPrintf(IO->ErrMsg, "Failed to get socket flags: %s", strerror(errno));
374 fdflags = fdflags | O_NONBLOCK;
375 if (fcntl(IO->sock, F_SETFL, fdflags) < 0) {
376 CtdlLogPrintf(CTDL_DEBUG,
377 "EVENT: unable to set socket nonblocking flags! %s \n",
379 StrBufPrintf(IO->ErrMsg, "Failed to set socket flags: %s", strerror(errno));
383 /* TODO: maye we could use offsetof() to calc the position of data...
384 * http://doc.dvgu.ru/devel/ev.html#associating_custom_data_with_a_watcher
386 ev_io_init(&IO->recv_event, IO_recv_callback, IO->sock, EV_READ);
387 IO->recv_event.data = IO;
388 ev_io_init(&IO->send_event, IO_send_callback, IO->sock, EV_WRITE);
389 IO->send_event.data = IO;
391 ev_timer_init(&IO->conn_fail, IO_connfail_callback, conn_timeout, 0);
392 IO->conn_fail.data = IO;
393 ev_timer_init(&IO->rw_timeout, IO_Timout_callback, first_rw_timeout, 0);
394 IO->rw_timeout.data = IO;
397 rc = connect(IO->sock, &IO->Addr, sizeof(struct sockaddr_in6));
399 rc = connect(IO->sock, (struct sockaddr_in *)&IO->Addr, sizeof(struct sockaddr_in));
402 //// freeaddrinfo(res);
403 set_start_callback(event_base, IO, 0);
404 ev_timer_start(event_base, &IO->rw_timeout);
405 return IO->NextState;
407 else if (errno == EINPROGRESS) {
409 ev_io_init(&IO->conn_event, IO_connestd_callback, IO->sock, EV_READ|EV_WRITE);
410 IO->conn_event.data = IO;
412 ev_io_start(event_base, &IO->conn_event);
413 ev_timer_start(event_base, &IO->conn_fail);
414 return IO->NextState;
417 CtdlLogPrintf(CTDL_ERR, "connect() failed: %s\n", strerror(errno));
418 StrBufPrintf(IO->ErrMsg, "Failed to connect: %s", strerror(errno));
419 assert(IO->ConnFail);
423 return IO->NextState;
426 void SetNextTimeout(AsyncIO *IO, double timeout)
428 IO->rw_timeout.repeat = timeout;
429 ev_timer_again (event_base, &IO->rw_timeout);
432 eNextState InitEventIO(AsyncIO *IO,
435 double first_rw_timeout,
441 IO->NextState = eReadMessage;
444 IO->NextState = eSendReply;
446 return event_connect_socket(IO, conn_timeout, first_rw_timeout);