/*
- * Copyright (c) 1998-2009 by the citadel.org team
+ * Copyright (c) 1998-2012 by the citadel.org team
*
- * This program 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; either version 3 of the License, or
- * (at your option) any later version.
+ * 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 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
+ *
+ *
+ *
*/
#include "sysdep.h"
#include <limits.h>
#include <sys/socket.h>
#include <netinet/in.h>
+#include <assert.h>
#include <arpa/inet.h>
#include <libcitadel.h>
+#include <curl/curl.h>
+#include <curl/multi.h>
#include "citadel.h"
#include "server.h"
#include "citserver.h"
#include "ctdl_module.h"
-#ifdef EXPERIMENTAL_SMTP_EVENT_CLIENT
-
#include "event_client.h"
+#include "serv_curl.h"
-int event_add_pipe[2] = {-1, -1};
+ev_loop *event_base;
+int DebugEventLoop = 0;
+int DebugEventLoopBacktrace = 0;
+int DebugCurl = 0;
-citthread_mutex_t EventQueueMutex; /* locks the access to the following vars: */
-HashList *QueueEvents = NULL;
+long EvIDSource = 1;
+/*****************************************************************************
+ * libevent / curl integration *
+ *****************************************************************************/
+#define DBGLOG(LEVEL) if ((LEVEL != LOG_DEBUG) || (DebugCurl != 0))
+
+#define EVCURL_syslog(LEVEL, FORMAT, ...) \
+ DBGLOG (LEVEL) syslog(LEVEL, "EVCURL:IO[%ld]CC[%d] " FORMAT, \
+ IO->ID, CCID, __VA_ARGS__)
+
+#define EVCURLM_syslog(LEVEL, FORMAT) \
+ DBGLOG (LEVEL) syslog(LEVEL, "EVCURL:IO[%ld]CC[%d] " FORMAT, \
+ IO->ID, CCID)
+
+#define CURL_syslog(LEVEL, FORMAT, ...) \
+ DBGLOG (LEVEL) syslog(LEVEL, "CURL: " FORMAT, __VA_ARGS__)
+
+#define CURLM_syslog(LEVEL, FORMAT) \
+ DBGLOG (LEVEL) syslog(LEVEL, "CURL: " FORMAT)
+
+#define MOPT(s, v) \
+ do { \
+ sta = curl_multi_setopt(mhnd, (CURLMOPT_##s), (v)); \
+ if (sta) { \
+ EVQ_syslog(LOG_ERR, "error setting option " \
+ #s " on curl multi handle: %s\n", \
+ curl_easy_strerror(sta)); \
+ exit (1); \
+ } \
+ } while (0)
+
+
+typedef struct _evcurl_global_data {
+ int magic;
+ CURLM *mhnd;
+ ev_timer timeev;
+ int nrun;
+} evcurl_global_data;
+
+ev_async WakeupCurl;
+evcurl_global_data global;
+
+static void
+gotstatus(int nnrun)
+{
+ CURLMsg *msg;
+ int nmsg;
+
+ global.nrun = nnrun;
+
+ CURLM_syslog(LOG_DEBUG,
+ "gotstatus(): about to call curl_multi_info_read\n");
+ while ((msg = curl_multi_info_read(global.mhnd, &nmsg))) {
+ CURL_syslog(LOG_DEBUG,
+ "got curl multi_info message msg=%d\n",
+ msg->msg);
+
+ if (CURLMSG_DONE == msg->msg) {
+ CURL *chnd;
+ char *chandle = NULL;
+ CURLcode sta;
+ CURLMcode msta;
+ AsyncIO*IO;
+
+ chandle = NULL;;
+ chnd = msg->easy_handle;
+ sta = curl_easy_getinfo(chnd,
+ CURLINFO_PRIVATE,
+ &chandle);
+ if (sta) {
+ EVCURL_syslog(LOG_ERR,
+ "error asking curl for private"
+ " cookie of curl handle: %s\n",
+ curl_easy_strerror(sta));
+ continue;
+ }
+ IO = (AsyncIO *)chandle;
+ if (IO->ID == 0) {
+ EVCURL_syslog(LOG_ERR,
+ "Error, invalid IO context %p\n",
+ IO);
+ continue;
+ }
+
+ EVCURLM_syslog(LOG_DEBUG, "request complete\n");
+
+ IO->Now = ev_now(event_base);
+
+ ev_io_stop(event_base, &IO->recv_event);
+ ev_io_stop(event_base, &IO->send_event);
+
+ sta = msg->data.result;
+ if (sta) {
+ EVCURL_syslog(LOG_ERR,
+ "error description: %s\n",
+ IO->HttpReq.errdesc);
+ EVCURL_syslog(LOG_ERR,
+ "error performing request: %s\n",
+ curl_easy_strerror(sta));
+ }
+ sta = curl_easy_getinfo(chnd,
+ CURLINFO_RESPONSE_CODE,
+ &IO->HttpReq.httpcode);
+ if (sta)
+ EVCURL_syslog(LOG_ERR,
+ "error asking curl for "
+ "response code from request: %s\n",
+ curl_easy_strerror(sta));
+ EVCURL_syslog(LOG_DEBUG,
+ "http response code was %ld\n",
+ (long)IO->HttpReq.httpcode);
+
+
+ curl_slist_free_all(IO->HttpReq.headers);
+ msta = curl_multi_remove_handle(global.mhnd, chnd);
+ if (msta)
+ EVCURL_syslog(LOG_ERR,
+ "warning problem detaching "
+ "completed handle from curl multi: "
+ "%s\n",
+ curl_multi_strerror(msta));
+
+ ev_cleanup_stop(event_base, &IO->abort_by_shutdown);
+
+ IO->HttpReq.attached = 0;
+ switch(IO->SendDone(IO))
+ {
+ case eDBQuery:
+ curl_easy_cleanup(IO->HttpReq.chnd);
+ IO->HttpReq.chnd = NULL;
+ break;
+ case eSendDNSQuery:
+ case eReadDNSReply:
+ case eConnect:
+ case eSendReply:
+ case eSendMore:
+ case eSendFile:
+ case eReadMessage:
+ case eReadMore:
+ case eReadPayload:
+ case eReadFile:
+ curl_easy_cleanup(IO->HttpReq.chnd);
+ IO->HttpReq.chnd = NULL;
+ break;
+ case eTerminateConnection:
+ case eAbort:
+ curl_easy_cleanup(IO->HttpReq.chnd);
+ IO->HttpReq.chnd = NULL;
+ FreeStrBuf(&IO->HttpReq.ReplyData);
+ FreeURL(&IO->ConnectMe);
+ RemoveContext(IO->CitContext);
+ IO->Terminate(IO);
+ }
+ }
+ }
+}
+
+static void
+stepmulti(void *data, curl_socket_t fd, int which)
+{
+ int running_handles = 0;
+ CURLMcode msta;
+
+ msta = curl_multi_socket_action(global.mhnd,
+ fd,
+ which,
+ &running_handles);
+
+ CURLM_syslog(LOG_DEBUG, "stepmulti(): calling gotstatus()\n");
+ if (msta)
+ CURL_syslog(LOG_ERR,
+ "error in curl processing events"
+ "on multi handle, fd %d: %s\n",
+ (int)fd,
+ curl_multi_strerror(msta));
+
+ if (global.nrun != running_handles)
+ gotstatus(running_handles);
+}
+
+static void
+gottime(struct ev_loop *loop, ev_timer *timeev, int events)
+{
+ CURLM_syslog(LOG_DEBUG, "EVCURL: waking up curl for timeout\n");
+ stepmulti(NULL, CURL_SOCKET_TIMEOUT, 0);
+}
+
+static void
+got_in(struct ev_loop *loop, ev_io *ioev, int events)
+{
+ CURL_syslog(LOG_DEBUG,
+ "EVCURL: waking up curl for io on fd %d\n",
+ (int)ioev->fd);
+
+ stepmulti(ioev->data, ioev->fd, CURL_CSELECT_IN);
+}
+
+static void
+got_out(struct ev_loop *loop, ev_io *ioev, int events)
+{
+ CURL_syslog(LOG_DEBUG,
+ "waking up curl for io on fd %d\n",
+ (int)ioev->fd);
+
+ stepmulti(ioev->data, ioev->fd, CURL_CSELECT_OUT);
+}
+
+static size_t
+gotdata(void *data, size_t size, size_t nmemb, void *cglobal) {
+ AsyncIO *IO = (AsyncIO*) cglobal;
+
+ if (IO->HttpReq.ReplyData == NULL)
+ {
+ IO->HttpReq.ReplyData = NewStrBufPlain(NULL, SIZ);
+ }
+ IO->Now = ev_now(event_base);
+ return CurlFillStrBuf_callback(data,
+ size,
+ nmemb,
+ IO->HttpReq.ReplyData);
+}
+
+static int
+gotwatchtime(CURLM *multi, long tblock_ms, void *cglobal) {
+ CURL_syslog(LOG_DEBUG, "EVCURL: gotwatchtime called %ld ms\n", tblock_ms);
+ evcurl_global_data *global = cglobal;
+ ev_timer_stop(EV_DEFAULT, &global->timeev);
+ if (tblock_ms < 0 || 14000 < tblock_ms)
+ tblock_ms = 14000;
+ ev_timer_set(&global->timeev, 0.5e-3 + 1.0e-3 * tblock_ms, 14.0);
+ ev_timer_start(EV_DEFAULT_UC, &global->timeev);
+ curl_multi_perform(global, &global->nrun);
+ return 0;
+}
+
+static int
+gotwatchsock(CURL *easy,
+ curl_socket_t fd,
+ int action,
+ void *cglobal,
+ void *vIO)
+{
+ evcurl_global_data *global = cglobal;
+ CURLM *mhnd = global->mhnd;
+ char *f;
+ AsyncIO *IO = (AsyncIO*) vIO;
+ CURLcode sta;
+ const char *Action;
+
+ if (IO == NULL) {
+ sta = curl_easy_getinfo(easy, CURLINFO_PRIVATE, &f);
+ if (sta) {
+ EVCURL_syslog(LOG_ERR,
+ "EVCURL: error asking curl for private "
+ "cookie of curl handle: %s\n",
+ curl_easy_strerror(sta));
+ return -1;
+ }
+ IO = (AsyncIO *) f;
+ EVCURL_syslog(LOG_DEBUG,
+ "EVCURL: got socket for URL: %s\n",
+ IO->ConnectMe->PlainUrl);
+
+ if (IO->SendBuf.fd != 0)
+ {
+ ev_io_stop(event_base, &IO->recv_event);
+ ev_io_stop(event_base, &IO->send_event);
+ }
+ IO->SendBuf.fd = fd;
+ ev_io_init(&IO->recv_event, &got_in, fd, EV_READ);
+ ev_io_init(&IO->send_event, &got_out, fd, EV_WRITE);
+ curl_multi_assign(mhnd, fd, IO);
+ }
+
+ IO->Now = ev_now(event_base);
+
+ Action = "";
+ switch (action)
+ {
+ case CURL_POLL_NONE:
+ Action = "CURL_POLL_NONE";
+ break;
+ case CURL_POLL_REMOVE:
+ Action = "CURL_POLL_REMOVE";
+ break;
+ case CURL_POLL_IN:
+ Action = "CURL_POLL_IN";
+ break;
+ case CURL_POLL_OUT:
+ Action = "CURL_POLL_OUT";
+ break;
+ case CURL_POLL_INOUT:
+ Action = "CURL_POLL_INOUT";
+ break;
+ }
+
+
+ EVCURL_syslog(LOG_DEBUG,
+ "EVCURL: gotwatchsock called fd=%d action=%s[%d]\n",
+ (int)fd, Action, action);
+
+ switch (action)
+ {
+ case CURL_POLL_NONE:
+ EVCURLM_syslog(LOG_DEBUG,
+ "called first time "
+ "to register this sockwatcker\n");
+ break;
+ case CURL_POLL_REMOVE:
+ EVCURLM_syslog(LOG_DEBUG,
+ "called last time to unregister "
+ "this sockwatcher\n");
+ ev_io_stop(event_base, &IO->recv_event);
+ ev_io_stop(event_base, &IO->send_event);
+ break;
+ case CURL_POLL_IN:
+ ev_io_start(event_base, &IO->recv_event);
+ ev_io_stop(event_base, &IO->send_event);
+ break;
+ case CURL_POLL_OUT:
+ ev_io_start(event_base, &IO->send_event);
+ ev_io_stop(event_base, &IO->recv_event);
+ break;
+ case CURL_POLL_INOUT:
+ ev_io_start(event_base, &IO->send_event);
+ ev_io_start(event_base, &IO->recv_event);
+ break;
+ }
+ return 0;
+}
+
+void curl_init_connectionpool(void)
+{
+ CURLM *mhnd ;
+
+ ev_timer_init(&global.timeev, &gottime, 14.0, 14.0);
+ global.timeev.data = (void *)&global;
+ global.nrun = -1;
+ CURLcode sta = curl_global_init(CURL_GLOBAL_ALL);
+
+ if (sta)
+ {
+ CURL_syslog(LOG_ERR,
+ "error initializing curl library: %s\n",
+ curl_easy_strerror(sta));
+
+ exit(1);
+ }
+ mhnd = global.mhnd = curl_multi_init();
+ if (!mhnd)
+ {
+ CURLM_syslog(LOG_ERR,
+ "error initializing curl multi handle\n");
+ exit(3);
+ }
+
+ MOPT(SOCKETFUNCTION, &gotwatchsock);
+ MOPT(SOCKETDATA, (void *)&global);
+ MOPT(TIMERFUNCTION, &gotwatchtime);
+ MOPT(TIMERDATA, (void *)&global);
+
+ return;
+}
+
+int evcurl_init(AsyncIO *IO)
+{
+ CURLcode sta;
+ CURL *chnd;
+
+ EVCURLM_syslog(LOG_DEBUG, "EVCURL: evcurl_init called ms\n");
+ IO->HttpReq.attached = 0;
+ chnd = IO->HttpReq.chnd = curl_easy_init();
+ if (!chnd)
+ {
+ EVCURLM_syslog(LOG_ERR, "EVCURL: error initializing curl handle\n");
+ return 0;
+ }
+
+#if DEBUG
+ OPT(VERBOSE, (long)1);
+#endif
+ OPT(NOPROGRESS, 1L);
+
+ OPT(NOSIGNAL, 1L);
+ OPT(FAILONERROR, (long)1);
+ OPT(ENCODING, "");
+ OPT(FOLLOWLOCATION, (long)0);
+ OPT(MAXREDIRS, (long)0);
+ OPT(USERAGENT, CITADEL);
+
+ OPT(TIMEOUT, (long)1800);
+ OPT(LOW_SPEED_LIMIT, (long)64);
+ OPT(LOW_SPEED_TIME, (long)600);
+ OPT(CONNECTTIMEOUT, (long)600);
+ OPT(PRIVATE, (void *)IO);
+
+ OPT(FORBID_REUSE, 1);
+ OPT(WRITEFUNCTION, &gotdata);
+ OPT(WRITEDATA, (void *)IO);
+ OPT(ERRORBUFFER, IO->HttpReq.errdesc);
+
+ if ((!IsEmptyStr(config.c_ip_addr))
+ && (strcmp(config.c_ip_addr, "*"))
+ && (strcmp(config.c_ip_addr, "::"))
+ && (strcmp(config.c_ip_addr, "0.0.0.0"))
+ )
+ {
+ OPT(INTERFACE, config.c_ip_addr);
+ }
+
+#ifdef CURLOPT_HTTP_CONTENT_DECODING
+ OPT(HTTP_CONTENT_DECODING, 1);
+ OPT(ENCODING, "");
+#endif
+
+ IO->HttpReq.headers = curl_slist_append(IO->HttpReq.headers,
+ "Connection: close");
+
+ return 1;
+}
+
+
+static void IOcurl_abort_shutdown_callback(struct ev_loop *loop,
+ ev_cleanup *watcher,
+ int revents)
+{
+ CURLMcode msta;
+ AsyncIO *IO = watcher->data;
+
+ if (IO == NULL)
+ return;
+ IO->Now = ev_now(event_base);
+ EVCURL_syslog(LOG_DEBUG, "EVENT Curl: %s\n", __FUNCTION__);
+ curl_slist_free_all(IO->HttpReq.headers);
+ msta = curl_multi_remove_handle(global.mhnd, IO->HttpReq.chnd);
+ if (msta)
+ {
+ EVCURL_syslog(LOG_ERR,
+ "EVCURL: warning problem detaching completed handle "
+ "from curl multi: %s\n",
+ curl_multi_strerror(msta));
+ }
+
+ curl_easy_cleanup(IO->HttpReq.chnd);
+ IO->HttpReq.chnd = NULL;
+ ev_cleanup_stop(event_base, &IO->abort_by_shutdown);
+ ev_io_stop(event_base, &IO->recv_event);
+ ev_io_stop(event_base, &IO->send_event);
+ assert(IO->ShutdownAbort);
+ IO->ShutdownAbort(IO);
+}
+eNextState
+evcurl_handle_start(AsyncIO *IO)
+{
+ CURLMcode msta;
+ CURLcode sta;
+ CURL *chnd;
+
+ chnd = IO->HttpReq.chnd;
+ EVCURL_syslog(LOG_DEBUG,
+ "EVCURL: Loading URL: %s\n", IO->ConnectMe->PlainUrl);
+ OPT(URL, IO->ConnectMe->PlainUrl);
+ if (StrLength(IO->ConnectMe->CurlCreds))
+ {
+ OPT(HTTPAUTH, (long)CURLAUTH_BASIC);
+ OPT(USERPWD, ChrPtr(IO->ConnectMe->CurlCreds));
+ }
+ if (StrLength(IO->HttpReq.PostData) > 0)
+ {
+ OPT(POSTFIELDS, ChrPtr(IO->HttpReq.PostData));
+ OPT(POSTFIELDSIZE, StrLength(IO->HttpReq.PostData));
+
+ }
+ else if ((IO->HttpReq.PlainPostDataLen != 0) &&
+ (IO->HttpReq.PlainPostData != NULL))
+ {
+ OPT(POSTFIELDS, IO->HttpReq.PlainPostData);
+ OPT(POSTFIELDSIZE, IO->HttpReq.PlainPostDataLen);
+ }
+ OPT(HTTPHEADER, IO->HttpReq.headers);
+
+ IO->NextState = eConnect;
+ EVCURLM_syslog(LOG_DEBUG, "EVCURL: attaching to curl multi handle\n");
+ msta = curl_multi_add_handle(global.mhnd, IO->HttpReq.chnd);
+ if (msta)
+ {
+ EVCURL_syslog(LOG_ERR,
+ "EVCURL: error attaching to curl multi handle: %s\n",
+ curl_multi_strerror(msta));
+ }
+
+ IO->HttpReq.attached = 1;
+ ev_async_send (event_base, &WakeupCurl);
+
+ ev_cleanup_init(&IO->abort_by_shutdown,
+ IOcurl_abort_shutdown_callback);
+
+ ev_cleanup_start(event_base, &IO->abort_by_shutdown);
+
+ return eReadMessage;
+}
+
+static void WakeupCurlCallback(EV_P_ ev_async *w, int revents)
+{
+ CURLM_syslog(LOG_DEBUG, "waking up curl multi handle\n");
+
+ curl_multi_perform(&global, CURL_POLL_NONE);
+}
+
+static void evcurl_shutdown (void)
+{
+ curl_global_cleanup();
+ curl_multi_cleanup(global.mhnd);
+ CURLM_syslog(LOG_DEBUG, "exiting\n");
+}
+/*****************************************************************************
+ * libevent integration *
+ *****************************************************************************/
+/*
+ * client event queue plus its methods.
+ * this currently is the main loop (which may change in some future?)
+ */
+int evbase_count = 0;
+pthread_mutex_t EventQueueMutex; /* locks the access to the following vars: */
+pthread_mutex_t EventExitQueueMutex; /* locks the access to the event queue pointer on exit. */
+HashList *QueueEvents = NULL;
HashList *InboundEventQueue = NULL;
HashList *InboundEventQueues[2] = { NULL, NULL };
-struct ev_loop *event_base;
-struct ev_io queue_add_event;
+ev_async AddJob;
+ev_async ExitEventLoop;
-static void QueueEventAddCallback(struct ev_loop *loop, ev_io *watcher, int revents)
+static void QueueEventAddCallback(EV_P_ ev_async *w, int revents)
{
- char buf[10];
+ CitContext *Ctx;
+ ev_tstamp Now;
HashList *q;
void *v;
- HashPos *It;
+ HashPos*It;
long len;
const char *Key;
/* get the control command... */
- read(watcher->fd, buf, 1);
- switch (buf[0]) {
- case '+':
- citthread_mutex_lock(&EventQueueMutex);
-
- if (InboundEventQueues[0] == InboundEventQueue) {
- InboundEventQueue = InboundEventQueues[1];
- q = InboundEventQueues[0];
- }
- else {
- InboundEventQueue = InboundEventQueues[0];
- q = InboundEventQueues[1];
- }
- citthread_mutex_unlock(&EventQueueMutex);
+ pthread_mutex_lock(&EventQueueMutex);
- It = GetNewHashPos(q, 0);
- while (GetNextHashPos(q, It, &len, &Key, &v))
- {
- IOAddHandler *h = v;
- h->EvAttch(h->IO);
+ if (InboundEventQueues[0] == InboundEventQueue) {
+ InboundEventQueue = InboundEventQueues[1];
+ q = InboundEventQueues[0];
+ }
+ else {
+ InboundEventQueue = InboundEventQueues[0];
+ q = InboundEventQueues[1];
+ }
+ pthread_mutex_unlock(&EventQueueMutex);
+ Now = ev_now (event_base);
+ It = GetNewHashPos(q, 0);
+ while (GetNextHashPos(q, It, &len, &Key, &v))
+ {
+ IOAddHandler *h = v;
+ if (h->IO->ID == 0) {
+ h->IO->ID = EvIDSource++;
}
- DeleteHashPos(&It);
- DeleteHashContent(&q);
-/// TODO: add it to QueueEvents
- break;
- case 'x':
- close(event_add_pipe[0]);
-/// TODO; flush QueueEvents fd's and delete it.
- ev_io_stop(event_base, &queue_add_event);
- ev_unloop(event_base, EVUNLOOP_ALL);
+ if (h->IO->StartIO == 0.0)
+ h->IO->StartIO = Now;
+
+ Ctx = h->IO->CitContext;
+ become_session(Ctx);
+
+ h->IO->Now = Now;
+ h->EvAttch(h->IO);
}
- CtdlLogPrintf(CTDL_DEBUG, "EVENT Q Read done.\n");
+ DeleteHashPos(&It);
+ DeleteHashContent(&q);
+ EVQM_syslog(LOG_DEBUG, "EVENT Q Add done.\n");
}
-void InitEventQueue(void)
+static void EventExitCallback(EV_P_ ev_async *w, int revents)
{
- struct rlimit LimitSet;
+ ev_break(event_base, EVBREAK_ALL);
- citthread_mutex_init(&EventQueueMutex, NULL);
+ EVQM_syslog(LOG_DEBUG, "EVENT Q exiting.\n");
+}
- if (pipe(event_add_pipe) != 0) {
- CtdlLogPrintf(CTDL_EMERG, "Unable to create pipe for libev queueing: %s\n", strerror(errno));
- abort();
- }
- LimitSet.rlim_cur = 1;
- LimitSet.rlim_max = 1;
- setrlimit(event_add_pipe[1], &LimitSet);
+
+
+void InitEventQueue(void)
+{
+ pthread_mutex_init(&EventQueueMutex, NULL);
+ pthread_mutex_init(&EventExitQueueMutex, NULL);
QueueEvents = NewHash(1, Flathash);
InboundEventQueues[0] = NewHash(1, Flathash);
InboundEventQueues[1] = NewHash(1, Flathash);
InboundEventQueue = InboundEventQueues[0];
}
+extern void CtdlDestroyEVCleanupHooks(void);
+
+extern int EVQShutDown;
/*
* this thread operates the select() etc. via libev.
- *
- *
*/
void *client_event_thread(void *arg)
{
- struct CitContext libevent_client_CC;
+ struct CitContext libev_client_CC;
- CtdlFillSystemContext(&libevent_client_CC, "LibEv Thread");
+ CtdlFillSystemContext(&libev_client_CC, "LibEv Thread");
// citthread_setspecific(MyConKey, (void *)&smtp_queue_CC);
- CtdlLogPrintf(CTDL_DEBUG, "client_ev_thread() initializing\n");
+ EVQM_syslog(LOG_DEBUG, "client_event_thread() initializing\n");
event_base = ev_default_loop (EVFLAG_AUTO);
+ ev_async_init(&AddJob, QueueEventAddCallback);
+ ev_async_start(event_base, &AddJob);
+ ev_async_init(&ExitEventLoop, EventExitCallback);
+ ev_async_start(event_base, &ExitEventLoop);
+ ev_async_init(&WakeupCurl, WakeupCurlCallback);
+ ev_async_start(event_base, &WakeupCurl);
+
+ curl_init_connectionpool();
+
+ ev_run (event_base, 0);
- ev_io_init(&queue_add_event, QueueEventAddCallback, event_add_pipe[0], EV_READ);
- ev_io_start(event_base, &queue_add_event);
+ EVQM_syslog(LOG_DEBUG, "client_event_thread() exiting\n");
- ev_loop (event_base, 0);
- CtdlClearSystemContext();
- ev_default_destroy ();
-
+///what todo here? CtdlClearSystemContext();
+ pthread_mutex_lock(&EventExitQueueMutex);
+ ev_loop_destroy (EV_DEFAULT_UC);
+ event_base = NULL;
DeleteHash(&QueueEvents);
InboundEventQueue = NULL;
DeleteHash(&InboundEventQueues[0]);
DeleteHash(&InboundEventQueues[1]);
- citthread_mutex_destroy(&EventQueueMutex);
+/* citthread_mutex_destroy(&EventQueueMutex); TODO */
+ evcurl_shutdown();
+ CtdlDestroyEVCleanupHooks();
+ pthread_mutex_unlock(&EventExitQueueMutex);
+ EVQShutDown = 1;
return(NULL);
}
-#endif
+/*----------------------------------------------------------------------------*/
+/*
+ * DB-Queue; does async bdb operations.
+ * has its own set of handlers.
+ */
+ev_loop *event_db;
+int evdb_count = 0;
+pthread_mutex_t DBEventQueueMutex; /* locks the access to the following vars: */
+pthread_mutex_t DBEventExitQueueMutex; /* locks the access to the db-event queue pointer on exit. */
+HashList *DBQueueEvents = NULL;
+HashList *DBInboundEventQueue = NULL;
+HashList *DBInboundEventQueues[2] = { NULL, NULL };
+
+ev_async DBAddJob;
+ev_async DBExitEventLoop;
+
+extern void ShutDownDBCLient(AsyncIO *IO);
+
+static void DBQueueEventAddCallback(EV_P_ ev_async *w, int revents)
+{
+ CitContext *Ctx;
+ ev_tstamp Now;
+ HashList *q;
+ void *v;
+ HashPos *It;
+ long len;
+ const char *Key;
+
+ /* get the control command... */
+ pthread_mutex_lock(&DBEventQueueMutex);
+
+ if (DBInboundEventQueues[0] == DBInboundEventQueue) {
+ DBInboundEventQueue = DBInboundEventQueues[1];
+ q = DBInboundEventQueues[0];
+ }
+ else {
+ DBInboundEventQueue = DBInboundEventQueues[0];
+ q = DBInboundEventQueues[1];
+ }
+ pthread_mutex_unlock(&DBEventQueueMutex);
+
+ Now = ev_now (event_db);
+ It = GetNewHashPos(q, 0);
+ while (GetNextHashPos(q, It, &len, &Key, &v))
+ {
+ IOAddHandler *h = v;
+ eNextState rc;
+ if (h->IO->ID == 0)
+ h->IO->ID = EvIDSource++;
+ if (h->IO->StartDB == 0.0)
+ h->IO->StartDB = Now;
+ h->IO->Now = Now;
+
+ Ctx = h->IO->CitContext;
+ become_session(Ctx);
+ ev_cleanup_start(event_db, &h->IO->db_abort_by_shutdown);
+ rc = h->EvAttch(h->IO);
+ switch (rc)
+ {
+ case eAbort:
+ ShutDownDBCLient(h->IO);
+ default:
+ break;
+ }
+ }
+ DeleteHashPos(&It);
+ DeleteHashContent(&q);
+ EVQM_syslog(LOG_DEBUG, "DBEVENT Q Add done.\n");
+}
+
+
+static void DBEventExitCallback(EV_P_ ev_async *w, int revents)
+{
+ EVQM_syslog(LOG_DEBUG, "DB EVENT Q exiting.\n");
+ ev_break(event_db, EVBREAK_ALL);
+}
+
+
+
+void DBInitEventQueue(void)
+{
+ pthread_mutex_init(&DBEventQueueMutex, NULL);
+ pthread_mutex_init(&DBEventExitQueueMutex, NULL);
+
+ DBQueueEvents = NewHash(1, Flathash);
+ DBInboundEventQueues[0] = NewHash(1, Flathash);
+ DBInboundEventQueues[1] = NewHash(1, Flathash);
+ DBInboundEventQueue = DBInboundEventQueues[0];
+}
+
+/*
+ * this thread operates writing to the message database via libev.
+ */
+void *db_event_thread(void *arg)
+{
+ ev_loop *tmp;
+ struct CitContext libev_msg_CC;
+
+ CtdlFillSystemContext(&libev_msg_CC, "LibEv DB IO Thread");
+
+ EVQM_syslog(LOG_DEBUG, "dbevent_thread() initializing\n");
+
+ tmp = event_db = ev_loop_new (EVFLAG_AUTO);
+
+ ev_async_init(&DBAddJob, DBQueueEventAddCallback);
+ ev_async_start(event_db, &DBAddJob);
+ ev_async_init(&DBExitEventLoop, DBEventExitCallback);
+ ev_async_start(event_db, &DBExitEventLoop);
+
+ ev_run (event_db, 0);
+
+ pthread_mutex_lock(&DBEventExitQueueMutex);
+
+ event_db = NULL;
+ EVQM_syslog(LOG_INFO, "dbevent_thread() exiting\n");
+
+ DeleteHash(&DBQueueEvents);
+ DBInboundEventQueue = NULL;
+ DeleteHash(&DBInboundEventQueues[0]);
+ DeleteHash(&DBInboundEventQueues[1]);
+
+/* citthread_mutex_destroy(&DBEventQueueMutex); TODO */
+
+ ev_loop_destroy (tmp);
+ pthread_mutex_unlock(&DBEventExitQueueMutex);
+ return(NULL);
+}
+
+void ShutDownEventQueues(void)
+{
+ EVQM_syslog(LOG_DEBUG, "EVENT Qs triggering exits.\n");
+
+ 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);
+}
+
+void DebugEventloopEnable(const int n)
+{
+ DebugEventLoop = n;
+}
+void DebugEventloopBacktraceEnable(const int n)
+{
+ DebugEventLoopBacktrace = n;
+}
+
+void DebugCurlEnable(const int n)
+{
+ DebugCurl = n;
+}
CTDL_MODULE_INIT(event_client)
{
-#ifdef EXPERIMENTAL_SMTP_EVENT_CLIENT
if (!threading)
{
+ CtdlRegisterDebugFlagHook(HKEY("eventloop"), DebugEventloopEnable, &DebugEventLoop);
+ CtdlRegisterDebugFlagHook(HKEY("eventloopbacktrace"), DebugEventloopBacktraceEnable, &DebugEventLoopBacktrace);
+ CtdlRegisterDebugFlagHook(HKEY("curl"), DebugCurlEnable, &DebugCurl);
InitEventQueue();
- CtdlThreadCreate("Client event", CTDLTHREAD_BIGSTACK, client_event_thread, NULL);
-/// todo register shutdown callback.
+ DBInitEventQueue();
+ CtdlThreadCreate(client_event_thread);
+ CtdlThreadCreate(db_event_thread);
}
-#endif
return "event";
}
projects / citadel.git / blobdiff