*/
int client_put_paused;
+ /**
+ * Was session given to transport service?
+ */
+ int session_passed;
/**
* Client send handle
static void
client_stop_session_timeout (struct Session *s);
+/**
+ * Function setting up file descriptors and scheduling task to run
+ *
+ * @param plugin plugin as closure
+ * @param now schedule task in 1ms, regardless of what curl may say
+ * @return GNUNET_SYSERR for hard failure, GNUNET_OK for ok
+ */
+static int
+client_schedule (struct HTTP_Client_Plugin *plugin, int now);
+
+
+int
+client_exist_session (struct HTTP_Client_Plugin *plugin, struct Session *s)
+{
+ struct Session * head;
+
+ GNUNET_assert (NULL != plugin);
+ GNUNET_assert (NULL != s);
+
+ for (head = plugin->head; head != NULL; head = head->next)
+ {
+ if (head == s)
+ return GNUNET_YES;
+ }
+ return GNUNET_NO;
+}
/**
* Function that can be used by the transport service to transmit
GNUNET_TRANSPORT_TransmitContinuation cont, void *cont_cls)
{
struct HTTP_Client_Plugin *plugin = cls;
- int bytes_sent = 0;
+ struct HTTP_Message *msg;
+ size_t res = -1;
GNUNET_assert (plugin != NULL);
GNUNET_assert (session != NULL);
- GNUNET_break (0);
+ /* lookup if session is really existing */
+ if (GNUNET_YES != client_exist_session (plugin, session))
+ {
+ GNUNET_break (0);
+ return GNUNET_SYSERR;
+ }
+
+ GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, session->plugin->name,
+ "Session %p/connection %p: Sending message with %u to peer `%s' with \n",
+ session, session->client_put,
+ msgbuf_size, GNUNET_i2s (&session->target));
+
+ /* create new message and schedule */
+ msg = GNUNET_malloc (sizeof (struct HTTP_Message) + msgbuf_size);
+ msg->next = NULL;
+ msg->size = msgbuf_size;
+ msg->pos = 0;
+ msg->buf = (char *) &msg[1];
+ msg->transmit_cont = cont;
+ msg->transmit_cont_cls = cont_cls;
+ memcpy (msg->buf, msgbuf, msgbuf_size);
+ GNUNET_CONTAINER_DLL_insert_tail (session->msg_head, session->msg_tail, msg);
+
+ if (session->client_put_paused == GNUNET_YES)
+ {
+ GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, session->plugin->name,
+ "Session %p/connection %p: unpausing connection\n",
+ session, session->client_put);
+ session->client_put_paused = GNUNET_NO;
+ curl_easy_pause (session->client_put, CURLPAUSE_CONT);
+ }
+ client_schedule (session->plugin, GNUNET_YES);
+ client_reschedule_session_timeout (session);
+
+ return res;
+}
+
+
+void
+client_delete_session (struct Session *s)
+{
+ struct HTTP_Client_Plugin *plugin = s->plugin;
+ struct HTTP_Message *pos = s->msg_head;
+ struct HTTP_Message *next = NULL;
- /* struct Plugin *plugin = cls; */
- return bytes_sent;
+ client_stop_session_timeout (s);
+
+ GNUNET_CONTAINER_DLL_remove (plugin->head, plugin->tail, s);
+
+ while (NULL != (pos = next))
+ {
+ next = pos->next;
+ GNUNET_CONTAINER_DLL_remove (s->msg_head, s->msg_tail, pos);
+ if (pos->transmit_cont != NULL)
+ pos->transmit_cont (pos->transmit_cont_cls, &s->target, GNUNET_SYSERR);
+ GNUNET_free (pos);
+ }
+
+ if (s->msg_tk != NULL)
+ {
+ GNUNET_SERVER_mst_destroy (s->msg_tk);
+ s->msg_tk = NULL;
+ }
+ GNUNET_free (s->addr);
+ GNUNET_free (s);
}
+/**
+ * Disconnect a session
+ *
+ * @param s session
+ * @return GNUNET_OK on success, GNUNET_SYSERR on error
+ */
+static int
+client_disconnect (struct Session *s)
+{
+ struct HTTP_Client_Plugin *plugin = s->plugin;
+ struct HTTP_Message *msg;
+ struct HTTP_Message *t;
+ int res = GNUNET_OK;
+ CURLMcode mret;
+
+ if (GNUNET_YES != client_exist_session(plugin, s))
+ {
+ GNUNET_break (0);
+ return GNUNET_SYSERR;
+ }
+
+ if (s->client_put != NULL)
+ {
+ GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
+ "Session %p/connection %p: disconnecting PUT connectionto peer `%s'\n",
+ s, s->client_put, GNUNET_i2s (&s->target));
+
+ /* remove curl handle from multi handle */
+ mret = curl_multi_remove_handle (plugin->curl_multi_handle, s->client_put);
+ if (mret != CURLM_OK)
+ {
+ /* clean up easy handle, handle is now invalid and free'd */
+ res = GNUNET_SYSERR;
+ GNUNET_break (0);
+ }
+ curl_easy_cleanup (s->client_put);
+ s->client_put = NULL;
+ }
+
+
+ if (s->recv_wakeup_task != GNUNET_SCHEDULER_NO_TASK)
+ {
+ GNUNET_SCHEDULER_cancel (s->recv_wakeup_task);
+ s->recv_wakeup_task = GNUNET_SCHEDULER_NO_TASK;
+ }
+
+ if (s->client_get != NULL)
+ {
+ GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
+ "Session %p/connection %p: disconnecting GET connection to peer `%s'\n",
+ s, s->client_get, GNUNET_i2s (&s->target));
+
+ /* remove curl handle from multi handle */
+ mret = curl_multi_remove_handle (plugin->curl_multi_handle, s->client_get);
+ if (mret != CURLM_OK)
+ {
+ /* clean up easy handle, handle is now invalid and free'd */
+ res = GNUNET_SYSERR;
+ GNUNET_break (0);
+ }
+ curl_easy_cleanup (s->client_get);
+ s->client_get = NULL;
+ }
+
+ msg = s->msg_head;
+ while (msg != NULL)
+ {
+ t = msg->next;
+ if (NULL != msg->transmit_cont)
+ msg->transmit_cont (msg->transmit_cont_cls, &s->target, GNUNET_SYSERR);
+ GNUNET_CONTAINER_DLL_remove (s->msg_head, s->msg_tail, msg);
+ GNUNET_free (msg);
+ msg = t;
+ }
+
+ GNUNET_assert (plugin->cur_connections >= 2);
+ plugin->cur_connections -= 2;
+ GNUNET_STATISTICS_set (plugin->env->stats,
+ "# HTTP client sessions",
+ plugin->cur_connections,
+ GNUNET_NO);
+
+ GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
+ "Session %p: notifying transport about ending session\n",s);
+
+ plugin->env->session_end (plugin->env->cls, &s->target, s);
+ client_delete_session (s);
+
+ /* Re-schedule since handles have changed */
+ if (plugin->client_perform_task != GNUNET_SCHEDULER_NO_TASK)
+ {
+ GNUNET_SCHEDULER_cancel (plugin->client_perform_task);
+ plugin->client_perform_task = GNUNET_SCHEDULER_NO_TASK;
+ }
+ client_schedule (plugin, GNUNET_YES);
+
+ return res;
+}
+
+
/**
* Function that can be used to force the plugin to disconnect
* from the given peer and cancel all previous transmissions
static void
http_client_plugin_disconnect (void *cls, const struct GNUNET_PeerIdentity *target)
{
- // struct Plugin *plugin = cls;
- // FIXME
- GNUNET_break (0);
+ struct HTTP_Client_Plugin *plugin = cls;
+ struct Session *next = NULL;
+ struct Session *pos = NULL;
+
+ GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
+ "Transport tells me to disconnect `%s'\n",
+ GNUNET_i2s (target));
+
+ next = plugin->head;
+ while (NULL != (pos = next))
+ {
+ next = pos->next;
+ if (0 == memcmp (target, &pos->target, sizeof (struct GNUNET_PeerIdentity)))
+ {
+ GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
+ "Disconnecting session %p to `%pos'\n",
+ pos, GNUNET_i2s (target));
+ GNUNET_assert (GNUNET_OK == client_disconnect (pos));
+ }
+ }
+
}
static struct Session *
return NULL;
}
-static int
-client_exist_session (struct HTTP_Client_Plugin *plugin, struct Session *s)
-{
- struct Session * head;
-
- GNUNET_assert (NULL != plugin);
- GNUNET_assert (NULL != s);
-
- for (head = plugin->head; head != NULL; head = head->next)
- {
- if (head == s)
- return GNUNET_YES;
- }
- return GNUNET_NO;
-}
-
/**
* Callback method used with libcurl
* Method is called when libcurl needs to read data during sending
if (NULL == msg)
{
GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
- "Nothing to for session %p send! Suspending PUT handle!\n", s);
+ "Session %p/connection %p: nothing to send, suspending\n",
+ s, s->client_put);
s->client_put_paused = GNUNET_YES;
return CURL_READFUNC_PAUSE;
}
if (msg->pos == msg->size)
{
GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
- "Session %p message with %u bytes sent, removing message from queue\n",
- s, msg->size, msg->pos);
+ "Session %p/connection %p: sent message with %u bytes sent, removing message from queue\n",
+ s, s->client_put, msg->size, msg->pos);
/* Calling transmit continuation */
GNUNET_CONTAINER_DLL_remove (s->msg_head, s->msg_tail, msg);
if (NULL != msg->transmit_cont)
if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
return;
GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, s->plugin->name,
- "Client: %p Waking up receive handle\n", s->client_get);
+ "Session %p/connection %p: Waking up GET handle\n", s, s->client_get);
if (s->client_get != NULL)
curl_easy_pause (s->client_get, CURLPAUSE_CONT);
}
-static int
-client_disconnect (struct Session *s)
-{
-
- int res = GNUNET_OK;
- CURLMcode mret;
- struct HTTP_Client_Plugin *plugin = s->plugin;
- struct HTTP_Message *msg;
- struct HTTP_Message *t;
-
- if (GNUNET_YES != client_exist_session (plugin, s))
- {
- GNUNET_break (0);
- return GNUNET_SYSERR;
- }
-
- if (s->client_put != NULL)
- {
- GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
- "Client: %p / %p Deleting outbound PUT session to peer `%s'\n",
- s, s->client_put, GNUNET_i2s (&s->target));
-
- /* remove curl handle from multi handle */
- mret = curl_multi_remove_handle (plugin->curl_multi_handle, s->client_put);
- if (mret != CURLM_OK)
- {
- /* clean up easy handle, handle is now invalid and free'd */
- res = GNUNET_SYSERR;
- GNUNET_break (0);
- }
- curl_easy_cleanup (s->client_put);
- s->client_put = NULL;
- }
-
-
- if (s->recv_wakeup_task != GNUNET_SCHEDULER_NO_TASK)
- {
- GNUNET_SCHEDULER_cancel (s->recv_wakeup_task);
- s->recv_wakeup_task = GNUNET_SCHEDULER_NO_TASK;
- }
-
- if (s->client_get != NULL)
- {
- GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
- "Client: %p / %p Deleting outbound GET session to peer `%s'\n",
- s,
- s->client_get, GNUNET_i2s (&s->target));
-
- /* remove curl handle from multi handle */
- mret = curl_multi_remove_handle (plugin->curl_multi_handle, s->client_get);
- if (mret != CURLM_OK)
- {
- /* clean up easy handle, handle is now invalid and free'd */
- res = GNUNET_SYSERR;
- GNUNET_break (0);
- }
- curl_easy_cleanup (s->client_get);
- s->client_get = NULL;
- }
-
- msg = s->msg_head;
- while (msg != NULL)
- {
- t = msg->next;
- if (NULL != msg->transmit_cont)
- msg->transmit_cont (msg->transmit_cont_cls, &s->target, GNUNET_SYSERR);
- GNUNET_CONTAINER_DLL_remove (s->msg_head, s->msg_tail, msg);
- GNUNET_free (msg);
- msg = t;
- }
-
- plugin->cur_connections -= 2;
- plugin->env->session_end (plugin->env->cls, &s->target, s);
-
- GNUNET_assert (plugin->cur_connections > 0);
- plugin->cur_connections --;
- GNUNET_STATISTICS_set (plugin->env->stats,
- "# HTTP client connections",
- plugin->cur_connections,
- GNUNET_NO);
-
- /* Re-schedule since handles have changed */
- if (plugin->client_perform_task != GNUNET_SCHEDULER_NO_TASK)
- {
- GNUNET_SCHEDULER_cancel (plugin->client_perform_task);
- plugin->client_perform_task = GNUNET_SCHEDULER_NO_TASK;
- }
- client_schedule (plugin, GNUNET_YES);
-
- return res;
-}
-
-
/**
* Task performing curl operations
*
static void
client_run (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
- GNUNET_break (0);
struct HTTP_Client_Plugin *plugin = cls;
int running;
CURLMcode mret;
if (msg->msg == CURLMSG_DONE)
{
GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
- "Client: %p connection to '%s' %s ended with reason %i: `%s'\n",
- msg->easy_handle, GNUNET_i2s (&s->target),
- http_common_plugin_address_to_string (NULL, s->addr,
- s->addrlen),
+ "Session %p/connection %p: connection to `%s' ended with reason %i: `%s'\n",
+ s, msg->easy_handle, GNUNET_i2s (&s->target),
msg->data.result,
curl_easy_strerror (msg->data.result));
return GNUNET_SYSERR;
}
- GNUNET_asprintf (&url, "%s%s;%u",
+ GNUNET_asprintf (&url, "%s/%s;%u",
http_common_plugin_address_to_string (plugin, s->addr, s->addrlen),
GNUNET_h2s_full (&plugin->env->my_identity->hashPubKey),
plugin->last_tag);
-
+ plugin->last_tag++;
GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
"Initiating outbound session peer `%s' using address `%s'\n",
GNUNET_i2s (&s->target), url);
return GNUNET_SYSERR;
}
+ GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
+ "Session %p: connected with connections GET %p and PUT %p\n",
+ s, s->client_get, s->client_put);
+
/* Perform connect */
plugin->cur_connections += 2;
GNUNET_STATISTICS_set (plugin->env->stats,
return res;
}
-void
-client_delete_session (struct Session *s)
-{
- struct HTTP_Client_Plugin *plugin = s->plugin;
- struct HTTP_Message *pos = s->msg_head;
- struct HTTP_Message *next = NULL;
-
- client_stop_session_timeout (s);
-
- GNUNET_CONTAINER_DLL_remove (plugin->head, plugin->tail, s);
-
- while (NULL != (pos = next))
- {
- next = pos->next;
- GNUNET_CONTAINER_DLL_remove (s->msg_head, s->msg_tail, pos);
- if (pos->transmit_cont != NULL)
- pos->transmit_cont (pos->transmit_cont_cls, &s->target, GNUNET_SYSERR);
- GNUNET_free (pos);
- }
-
- if (s->msg_tk != NULL)
- {
- GNUNET_SERVER_mst_destroy (s->msg_tk);
- s->msg_tk = NULL;
- }
- GNUNET_free (s->addr);
- GNUNET_free (s);
-}
-
/**
* Creates a new outbound session the transport service will use to send data to the
GNUNET_log (TIMEOUT_LOG,
"Timeout for session %p set to %llu ms\n",
s, (unsigned long long) TIMEOUT.rel_value);
- GNUNET_break (0);
}
/**
GNUNET_log (TIMEOUT_LOG,
"Timeout rescheduled for session %p set to %llu ms\n",
s, (unsigned long long) TIMEOUT.rel_value);
- GNUNET_break (0);
}
/**
{
struct GNUNET_TRANSPORT_PluginFunctions *api = cls;
struct HTTP_Client_Plugin *plugin = api->cls;
+ struct Session *pos;
+ struct Session *next;
+
+ GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
+ _("Shutting down plugin `%s'\n"),
+ plugin->name);
+
+ next = plugin->head;
+ while (NULL != (pos = next))
+ {
+ next = pos->next;
+ GNUNET_CONTAINER_DLL_remove( plugin->head, plugin->tail, pos);
+ client_disconnect (pos);
+ }
if (NULL == api->cls)
{
}
curl_global_cleanup ();
+ GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
+ _("Shutdown for plugin `%s' complete\n"),
+ plugin->name);
+
GNUNET_free (plugin);
GNUNET_free (api);
return NULL;
}
+static int
+client_configure_plugin (struct HTTP_Client_Plugin *plugin)
+{
+ unsigned long long max_connections;
+
+ /* Optional parameters */
+ if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_number (plugin->env->cfg,
+ plugin->name,
+ "MAX_CONNECTIONS", &max_connections))
+ max_connections = 128;
+ plugin->max_connections = max_connections;
+
+ GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
+ _("Maximum number of connections is %u\n"),
+ plugin->max_connections);
+ return GNUNET_OK;
+}
+
/**
* Entry point for the plugin.
*/
api->disconnect = &http_client_plugin_disconnect;
api->check_address = &http_client_plugin_address_suggested;
api->get_session = &http_client_plugin_get_session;
+ api->address_to_string = &http_common_plugin_address_to_string;
+ api->string_to_address = &http_common_plugin_string_to_address;
+ api->address_pretty_printer = &http_common_plugin_address_pretty_printer;
+
#if BUILD_HTTPS
plugin->name = "transport-https_client";
plugin->name = "transport-http_client";
plugin->protocol = "http";
#endif
+ plugin->last_tag = 1;
+
+ if (GNUNET_SYSERR == client_configure_plugin (plugin))
+ {
+ LIBGNUNET_PLUGIN_TRANSPORT_DONE (api);
+ return NULL;
+ }
/* Start client */
if (GNUNET_SYSERR == client_start (plugin))
projects / oweals / gnunet.git / blobdiff