#include <netinet/in.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"
#ifdef EXPERIMENTAL_SMTP_EVENT_CLIENT
#include "event_client.h"
+#include "serv_curl.h"
-int event_add_pipe[2] = {-1, -1};
+ev_loop *event_base;
+
+/*****************************************************************************
+ * libevent / curl integration *
+ *****************************************************************************/
+#define MOPT(s, v) \
+ do { \
+ sta = curl_multi_setopt(mhnd, (CURLMOPT_##s), (v)); \
+ if (sta) { \
+ syslog(LOG_ERR, "EVCURL: 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;
+
+typedef struct _sockwatcher_data
+{
+ evcurl_global_data *global;
+ ev_io ioev;
+} sockwatcher_data;
+
+ev_async WakeupCurl;
+evcurl_global_data global;
+
+static void
+gotstatus(evcurl_global_data *global, int nnrun)
+{
+ CURLM *mhnd;
+ CURLMsg *msg;
+ int nmsg;
+/*
+ if (EVCURL_GLOBAL_MAGIC != global.magic)
+ {
+ CtdlLogPrintf(CTDL_ERR, "internal error: gotstatus on wrong struct");
+ return;
+ }
+*/
+ global->nrun = nnrun;
+ mhnd = global->mhnd;
+
+ syslog(LOG_DEBUG, "CURLEV: gotstatus(): about to call curl_multi_info_read\n");
+ while ((msg = curl_multi_info_read(mhnd, &nmsg))) {
+ syslog(LOG_ERR, "EVCURL: got curl multi_info message msg=%d\n", msg->msg);
+ if (CURLMSG_DONE == msg->msg) {
+ CURL *chnd;
+ char *chandle;
+ CURLcode sta;
+ CURLMcode msta;
+ AsyncIO *IO;
+
+ chandle = NULL;;
+ chnd = msg->easy_handle;
+ sta = curl_easy_getinfo(chnd, CURLINFO_PRIVATE, &chandle);
+ syslog(LOG_ERR, "EVCURL: request complete\n");
+ if (sta)
+ syslog(LOG_ERR, "EVCURL: error asking curl for private cookie of curl handle: %s\n", curl_easy_strerror(sta));
+ IO = (AsyncIO *)chandle;
+
+ sta = msg->data.result;
+ if (sta) {
+ syslog(LOG_ERR, "EVCURL: error description: %s\n", IO->HttpReq.errdesc);
+ syslog(LOG_ERR, "EVCURL: error performing request: %s\n", curl_easy_strerror(sta));
+ }
+ sta = curl_easy_getinfo(chnd, CURLINFO_RESPONSE_CODE, &IO->HttpReq.httpcode);
+ if (sta)
+ syslog(LOG_ERR, "EVCURL: error asking curl for response code from request: %s\n", curl_easy_strerror(sta));
+ syslog(LOG_ERR, "EVCURL: http response code was %ld\n", (long)IO->HttpReq.httpcode);
+ msta = curl_multi_remove_handle(mhnd, chnd);
+ if (msta)
+ syslog(LOG_ERR, "EVCURL: warning problem detaching completed handle from curl multi: %s\n", curl_multi_strerror(msta));
+
+ IO->HttpReq.attached = 0;
+ IO->SendDone(IO);
+ curl_easy_cleanup(IO->HttpReq.chnd);
+ curl_slist_free_all(IO->HttpReq.headers);
+ FreeStrBuf(&IO->HttpReq.ReplyData);
+ FreeURL(&IO->ConnectMe);
+ RemoveContext(IO->CitContext);
+ IO->Terminate(IO);
+ }
+ }
+}
+
+static void
+stepmulti(evcurl_global_data *global, curl_socket_t fd) {
+ int nnrun;
+ CURLMcode msta;
+
+ if (global == NULL) {
+ syslog(LOG_DEBUG, "EVCURL: stepmulti(NULL): wtf?\n");
+ return;
+ }
+ msta = curl_multi_socket_action(global->mhnd, fd, 0, &nnrun);
+ syslog(LOG_DEBUG, "EVCURL: stepmulti(): calling gotstatus()\n");
+ if (msta)
+ syslog(LOG_ERR, "EVCURL: error in curl processing events on multi handle, fd %d: %s\n", (int)fd, curl_multi_strerror(msta));
+ if (global->nrun != nnrun)
+ gotstatus(global, nnrun);
+}
+
+static void
+gottime(struct ev_loop *loop, ev_timer *timeev, int events) {
+ syslog(LOG_DEBUG, "EVCURL: waking up curl for timeout\n");
+ evcurl_global_data *global = (void *)timeev->data;
+ stepmulti(global, CURL_SOCKET_TIMEOUT);
+}
+static void
+gotio(struct ev_loop *loop, ev_io *ioev, int events) {
+ syslog(LOG_DEBUG, "EVCURL: waking up curl for io on fd %d\n", (int)ioev->fd);
+ sockwatcher_data *sockwatcher = (void *)ioev->data;
+ stepmulti(sockwatcher->global, ioev->fd);
+}
+
+static size_t
+gotdata(void *data, size_t size, size_t nmemb, void *cglobal) {
+ AsyncIO *IO = (AsyncIO*) cglobal;
+ //evcurl_request_data *D = (evcurl_request_data*) data;
+ syslog(LOG_DEBUG, "EVCURL: gotdata(): calling CurlFillStrBuf_callback()\n");
+
+ if (IO->HttpReq.ReplyData == NULL)
+ {
+ IO->HttpReq.ReplyData = NewStrBufPlain(NULL, SIZ);
+ }
+ return CurlFillStrBuf_callback(data, size, nmemb, IO->HttpReq.ReplyData);
+}
+
+static int
+gotwatchtime(CURLM *multi, long tblock_ms, void *cglobal) {
+ 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, CURL_POLL_NONE);
+ return 0;
+}
+
+static int
+gotwatchsock(CURL *easy, curl_socket_t fd, int action, void *cglobal, void *csockwatcher) {
+ evcurl_global_data *global = cglobal;
+ CURLM *mhnd = global->mhnd;
+ sockwatcher_data *sockwatcher = csockwatcher;
+
+ syslog(LOG_DEBUG, "EVCURL: gotwatchsock called fd=%d action=%d\n", (int)fd, action);
+
+ if (!sockwatcher) {
+ syslog(LOG_ERR,"EVCURL: called first time to register this sockwatcker\n");
+ sockwatcher = malloc(sizeof(sockwatcher_data));
+ sockwatcher->global = global;
+ ev_init(&sockwatcher->ioev, &gotio);
+ sockwatcher->ioev.data = (void *)sockwatcher;
+ curl_multi_assign(mhnd, fd, sockwatcher);
+ }
+ if (CURL_POLL_REMOVE == action) {
+ syslog(LOG_ERR,"EVCURL: called last time to unregister this sockwatcher\n");
+ ev_io_stop(event_base, &sockwatcher->ioev);
+ free(sockwatcher);
+ } else {
+ int events = (action & CURL_POLL_IN ? EV_READ : 0) | (action & CURL_POLL_OUT ? EV_WRITE : 0);
+ ev_io_stop(EV_DEFAULT, &sockwatcher->ioev);
+ if (events) {
+ ev_io_set(&sockwatcher->ioev, fd, events);
+ ev_io_start(EV_DEFAULT, &sockwatcher->ioev);
+ }
+ }
+ 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)
+ {
+ syslog(LOG_ERR,"EVCURL: error initializing curl library: %s\n", curl_easy_strerror(sta));
+ exit(1);
+ }
+ mhnd = global.mhnd = curl_multi_init();
+ if (!mhnd)
+ {
+ syslog(LOG_ERR,"EVCURL: 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,
+ void *CustomData,
+ const char* Desc,
+ IO_CallBack CallBack,
+ IO_CallBack Terminate)
+{
+ CURLcode sta;
+ CURL *chnd;
+
+ syslog(LOG_DEBUG, "EVCURL: evcurl_init called ms\n");
+ IO->HttpReq.attached = 0;
+ IO->SendDone = CallBack;
+ IO->Terminate = Terminate;
+ chnd = IO->HttpReq.chnd = curl_easy_init();
+ if (!chnd)
+ {
+ syslog(LOG_ERR, "EVCURL: error initializing curl handle\n");
+ return 1;
+ }
+
+ strcpy(IO->HttpReq.errdesc, Desc);
+
+ OPT(VERBOSE, (long)1);
+ /* unset in production */
+ OPT(NOPROGRESS, (long)1);
+ OPT(NOSIGNAL, (long)1);
+ OPT(FAILONERROR, (long)1);
+ OPT(ENCODING, "");
+ OPT(FOLLOWLOCATION, (long)1);
+ OPT(MAXREDIRS, (long)7);
+ 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(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);
+ }
+ /* point to a structure that points back to the perl structure and stuff */
+ 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));
+ }
+#ifdef CURLOPT_HTTP_CONTENT_DECODING
+ OPT(HTTP_CONTENT_DECODING, 1);
+ OPT(ENCODING, "");
+#endif
+ 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);
+ }
+
+ if (IO->HttpReq.headers != NULL)
+ OPT(HTTPHEADER, IO->HttpReq.headers);
+
+ return 1;
+}
+
+void
+evcurl_handle_start(AsyncIO *IO)
+{
+ CURLMcode msta;
+
+ syslog(LOG_DEBUG, "EVCURL: attaching to curl multi handle\n");
+ msta = curl_multi_add_handle(global.mhnd, IO->HttpReq.chnd);
+ if (msta)
+ 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);
+}
+
+static void WakeupCurlCallback(EV_P_ ev_async *w, int revents)
+{
+ syslog(LOG_DEBUG, "EVCURL: waking up curl multi handle\n");
+
+ curl_multi_perform(&global, CURL_POLL_NONE);
+}
+
+static void evcurl_shutdown (void)
+{
+ curl_multi_cleanup(global.mhnd);
+}
+/*****************************************************************************
+ * libevent integration *
+ *****************************************************************************/
+/*
+ * client event queue plus its methods.
+ * this currently is the main loop (which may change in some future?)
+ */
+int evbase_count = 0;
+int event_add_pipe[2] = {-1, -1};
citthread_mutex_t EventQueueMutex; /* locks the access to the following vars: */
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];
HashList *q;
void *v;
HashPos *It;
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);
+ citthread_mutex_lock(&EventQueueMutex);
- It = GetNewHashPos(q, 0);
- while (GetNextHashPos(q, It, &len, &Key, &v))
- {
- IOAddHandler *h = v;
- h->EvAttch(h->Ctx);
- }
- DeleteHashPos(&It);
- DeleteHashContent(&q);
-/// TODO: add it to QueueEvents
- break;
- case 'x':
- /////event_del(&queue_add_event);
- 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 (InboundEventQueues[0] == InboundEventQueue) {
+ InboundEventQueue = InboundEventQueues[1];
+ q = InboundEventQueues[0];
+ }
+ else {
+ InboundEventQueue = InboundEventQueues[0];
+ q = InboundEventQueues[1];
+ }
+ citthread_mutex_unlock(&EventQueueMutex);
+
+ It = GetNewHashPos(q, 0);
+ while (GetNextHashPos(q, It, &len, &Key, &v))
+ {
+ IOAddHandler *h = v;
+ h->EvAttch(h->IO);
}
- /* Unblock the other side */
-// read(fd, buf, 1);
- CtdlLogPrintf(CTDL_DEBUG, "EVENT Q Read done.\n");
+ DeleteHashPos(&It);
+ DeleteHashContent(&q);
+ syslog(LOG_DEBUG, "EVENT Q Read done.\n");
}
+static void EventExitCallback(EV_P_ ev_async *w, int revents)
+{
+ ev_break(event_base, EVBREAK_ALL);
+
+ syslog(LOG_DEBUG, "EVENT Q exiting.\n");
+}
+
+
+
void InitEventQueue(void)
{
struct rlimit LimitSet;
-/// event_base = ev_default_loop(0);
-/*
- base = event_base_new();
- if (!base)
- return NULL; / *XXXerr*/
-
citthread_mutex_init(&EventQueueMutex, NULL);
if (pipe(event_add_pipe) != 0) {
- CtdlLogPrintf(CTDL_EMERG, "Unable to create pipe for libev queueing: %s\n", strerror(errno));
+ syslog(LOG_EMERG, "Unable to create pipe for libev queueing: %s\n", strerror(errno));
abort();
}
LimitSet.rlim_cur = 1;
*/
void *client_event_thread(void *arg)
{
- struct CitContext libevent_client_CC;
+ struct CitContext libev_client_CC;
- CtdlFillSystemContext(&libevent_client_CC, "LibEvent Thread");
+ CtdlFillSystemContext(&libev_client_CC, "LibEv Thread");
// citthread_setspecific(MyConKey, (void *)&smtp_queue_CC);
- CtdlLogPrintf(CTDL_DEBUG, "client_event_thread() initializing\n");
-/*
- event_set(&queue_add_event,
- event_add_pipe[0],
- EV_READ|EV_PERSIST,
- QueueEventAddCallback,
- NULL);
-
- event_add(&queue_add_event, NULL);
-*/
-/*
- ev_io_init(&queue_add_event, QueueEventAddCallback, event_add_pipe[0], EV_READ);
- ev_io_start(event_base, &queue_add_event);
+ syslog(LOG_DEBUG, "client_ev_thread() initializing\n");
-*/
event_base = ev_default_loop (EVFLAG_AUTO);
-/// ev_loop(event_base, 0);
- ev_io_init(&queue_add_event, QueueEventAddCallback, event_add_pipe[0], EV_READ);
- ev_io_start(event_base, &queue_add_event);
+ 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_loop (event_base, 0);
- CtdlClearSystemContext();
- ev_default_destroy ();
+ ev_run (event_base, 0);
+
+
+///what todo here? CtdlClearSystemContext();
+ ev_loop_destroy (EV_DEFAULT_UC);
+
+ DeleteHash(&QueueEvents);
+ InboundEventQueue = NULL;
+ DeleteHash(&InboundEventQueues[0]);
+ DeleteHash(&InboundEventQueues[1]);
citthread_mutex_destroy(&EventQueueMutex);
+ evcurl_shutdown();
+
+ return(NULL);
+}
+/*------------------------------------------------------------------------------*/
+/*
+ * DB-Queue; does async bdb operations.
+ * has its own set of handlers.
+ */
+ev_loop *event_db;
+int evdb_count = 0;
+int evdb_add_pipe[2] = {-1, -1};
+citthread_mutex_t DBEventQueueMutex; /* locks the access to the following vars: */
+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)
+{
+ HashList *q;
+ void *v;
+ HashPos *It;
+ long len;
+ const char *Key;
+
+ /* get the control command... */
+ citthread_mutex_lock(&DBEventQueueMutex);
+
+ if (DBInboundEventQueues[0] == DBInboundEventQueue) {
+ DBInboundEventQueue = DBInboundEventQueues[1];
+ q = DBInboundEventQueues[0];
+ }
+ else {
+ DBInboundEventQueue = DBInboundEventQueues[0];
+ q = DBInboundEventQueues[1];
+ }
+ citthread_mutex_unlock(&DBEventQueueMutex);
+
+ It = GetNewHashPos(q, 0);
+ while (GetNextHashPos(q, It, &len, &Key, &v))
+ {
+ IOAddHandler *h = v;
+ eNextState rc;
+ rc = h->EvAttch(h->IO);
+ switch (rc)
+ {
+ case eAbort:
+ ShutDownDBCLient(h->IO);
+ default:
+ break;
+ }
+ }
+ DeleteHashPos(&It);
+ DeleteHashContent(&q);
+ syslog(LOG_DEBUG, "DBEVENT Q Read done.\n");
+}
+
+
+static void DBEventExitCallback(EV_P_ ev_async *w, int revents)
+{
+ syslog(LOG_DEBUG, "EVENT Q exiting.\n");
+ ev_break(event_db, EVBREAK_ALL);
+}
+
+
+
+void DBInitEventQueue(void)
+{
+ struct rlimit LimitSet;
+
+ citthread_mutex_init(&DBEventQueueMutex, NULL);
+
+ if (pipe(evdb_add_pipe) != 0) {
+ syslog(LOG_EMERG, "Unable to create pipe for libev queueing: %s\n", strerror(errno));
+ abort();
+ }
+ LimitSet.rlim_cur = 1;
+ LimitSet.rlim_max = 1;
+ setrlimit(evdb_add_pipe[1], &LimitSet);
+
+ 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)
+{
+ struct CitContext libev_msg_CC;
+
+ CtdlFillSystemContext(&libev_msg_CC, "LibEv DB IO Thread");
+// citthread_setspecific(MyConKey, (void *)&smtp_queue_CC);
+ syslog(LOG_DEBUG, "client_msgev_thread() initializing\n");
+
+ 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);
+
+
+//// what to do here? CtdlClearSystemContext();
+ ev_loop_destroy (event_db);
+
+ DeleteHash(&DBQueueEvents);
+ DBInboundEventQueue = NULL;
+ DeleteHash(&DBInboundEventQueues[0]);
+ DeleteHash(&DBInboundEventQueues[1]);
+ citthread_mutex_destroy(&DBEventQueueMutex);
+
return(NULL);
}
if (!threading)
{
InitEventQueue();
+ DBInitEventQueue();
CtdlThreadCreate("Client event", CTDLTHREAD_BIGSTACK, client_event_thread, NULL);
+ CtdlThreadCreate("DB event", CTDLTHREAD_BIGSTACK, db_event_thread, NULL);
/// todo register shutdown callback.
}
#endif
projects / citadel.git / blobdiff