/*
This file is part of GNUnet.
- (C) 2009, 2010, 2012, 2013 Christian Grothoff (and other contributing authors)
+ Copyright (C) 2009, 2010, 2012, 2013 Christian Grothoff (and other contributing authors)
GNUnet is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
You should have received a copy of the GNU General Public License
along with GNUnet; see the file COPYING. If not, write to the
- Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA.
+ Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA.
*/
/**
/**
* ID of the reconnect task (if any).
*/
- GNUNET_SCHEDULER_TaskIdentifier reconnect_task;
+ struct GNUNET_SCHEDULER_Task * reconnect_task;
/**
* Current delay we use for re-trying to connect to core.
/**
* ID of a task to run if we fail to get a reply to the init message in time.
*/
- GNUNET_SCHEDULER_TaskIdentifier init_timeout_task_id;
+ struct GNUNET_SCHEDULER_Task * init_timeout_task_id;
};
static void
monitor_notify_handler (void *cls, const struct GNUNET_MessageHeader *msg);
-static void
+static int
reconnect_arm_monitor (struct GNUNET_ARM_MonitorHandle *h);
/**
{
struct GNUNET_ARM_MonitorHandle *h = cls;
- h->reconnect_task = GNUNET_SCHEDULER_NO_TASK;
+ h->reconnect_task = NULL;
LOG (GNUNET_ERROR_TYPE_DEBUG, "Connecting to ARM service for monitoring after delay\n");
reconnect_arm_monitor (h);
}
h->monitor = NULL;
}
- if (GNUNET_SCHEDULER_NO_TASK != h->init_timeout_task_id)
+ if (NULL != h->init_timeout_task_id)
{
GNUNET_SCHEDULER_cancel (h->init_timeout_task_id);
- h->init_timeout_task_id = GNUNET_SCHEDULER_NO_TASK;
+ h->init_timeout_task_id = NULL;
}
- GNUNET_assert (GNUNET_SCHEDULER_NO_TASK == h->reconnect_task);
+ GNUNET_assert (NULL == h->reconnect_task);
h->reconnect_task =
GNUNET_SCHEDULER_add_delayed (h->retry_backoff, &reconnect_arm_monitor_task, h);
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Init message timed out\n");
+ h->init_timeout_task_id = NULL;
reconnect_arm_monitor_later (h);
}
* @param cls closure with the 'struct GNUNET_ARM_MonitorHandle'
* @param size number of bytes available in buf
* @param buf where the callee should write the message
- * @return number of bytes written to buf
+ * @return number of bytes written to buf
*/
static size_t
transmit_monitoring_init_message (void *cls, size_t size, void *buf)
struct GNUNET_MessageHeader *msg;
uint16_t msize;
- GNUNET_assert (GNUNET_SCHEDULER_NO_TASK == h->reconnect_task);
- GNUNET_assert (GNUNET_SCHEDULER_NO_TASK == h->init_timeout_task_id);
+ GNUNET_assert (NULL == h->reconnect_task);
+ GNUNET_assert (NULL == h->init_timeout_task_id);
h->cth = NULL;
if (NULL == buf)
{
}
-static void
+static int
reconnect_arm_monitor (struct GNUNET_ARM_MonitorHandle *h)
{
GNUNET_assert (NULL == h->monitor);
{
LOG (GNUNET_ERROR_TYPE_DEBUG,
"arm_api, GNUNET_CLIENT_connect returned NULL\n");
- GNUNET_CLIENT_disconnect (h->monitor);
- h->monitor = NULL;
- return;
+ if (NULL != h->service_status)
+ h->service_status (h->cls, NULL, GNUNET_ARM_SERVICE_STOPPED);
+ return GNUNET_SYSERR;
}
LOG (GNUNET_ERROR_TYPE_DEBUG,
"arm_api, GNUNET_CLIENT_connect returned non-NULL\n");
h->cth = GNUNET_CLIENT_notify_transmit_ready (h->monitor,
sizeof (struct GNUNET_MessageHeader), GNUNET_TIME_UNIT_FOREVER_REL,
GNUNET_NO, &transmit_monitoring_init_message, h);
+ return GNUNET_OK;
}
/**
- * Setup a context for monitoring ARM. Note that this
- * can be done even if the ARM service is not yet running.
- * Never fails.
+ * Setup a context for monitoring ARM, then
+ * start connecting to the ARM service for monitoring using that context.
*
* @param cfg configuration to use (needed to contact ARM;
* the ARM service may internally use a different
* configuration to determine how to start the service).
- * @return context to use for further ARM monitoring operations
- */
-struct GNUNET_ARM_MonitorHandle *
-GNUNET_ARM_monitor_alloc (const struct GNUNET_CONFIGURATION_Handle *cfg)
-{
- struct GNUNET_ARM_MonitorHandle *ret;
-
- ret = GNUNET_malloc (sizeof (struct GNUNET_ARM_MonitorHandle));
- ret->cfg = GNUNET_CONFIGURATION_dup (cfg);
- ret->currently_down = GNUNET_YES;
- ret->reconnect_task = GNUNET_SCHEDULER_NO_TASK;
- ret->init_timeout_task_id = GNUNET_SCHEDULER_NO_TASK;
- return ret;
-}
-
-
-/**
- * Start connecting to the ARM service for monitoring using the context.
- *
- * @param h ARM monitor handle
* @param cont callback to invoke on status updates
* @param cont_cls closure
+ * @return context to use for further ARM monitor operations, NULL on error.
*/
-void
-GNUNET_ARM_monitor (struct GNUNET_ARM_MonitorHandle *h,
+struct GNUNET_ARM_MonitorHandle *
+GNUNET_ARM_monitor (const struct GNUNET_CONFIGURATION_Handle *cfg,
GNUNET_ARM_ServiceStatusCallback cont, void *cont_cls)
{
+ struct GNUNET_ARM_MonitorHandle *h;
+
+ h = GNUNET_new (struct GNUNET_ARM_MonitorHandle);
+ h->cfg = GNUNET_CONFIGURATION_dup (cfg);
+ h->currently_down = GNUNET_YES;
+ h->reconnect_task = NULL;
+ h->init_timeout_task_id = NULL;
h->service_status = cont;
h->cls = cont_cls;
- reconnect_arm_monitor (h);
+ if (GNUNET_OK != reconnect_arm_monitor (h))
+ {
+ GNUNET_free (h);
+ return NULL;
+ }
+ return h;
}
/**
* Disconnect from the ARM service (if connected) and destroy the context.
- * Don't call inside a callback!
*
* @param h the handle that was being used
*/
void
-GNUNET_ARM_monitor_disconnect (struct GNUNET_ARM_MonitorHandle *handle)
+GNUNET_ARM_monitor_disconnect_and_free (struct GNUNET_ARM_MonitorHandle *h)
{
LOG (GNUNET_ERROR_TYPE_DEBUG, "Disconnecting from ARM service\n");
- if (NULL != handle->cth)
+ if (NULL != h->cth)
{
- GNUNET_CLIENT_notify_transmit_ready_cancel (handle->cth);
- handle->cth = NULL;
+ GNUNET_CLIENT_notify_transmit_ready_cancel (h->cth);
+ h->cth = NULL;
}
- if (GNUNET_SCHEDULER_NO_TASK != handle->init_timeout_task_id)
+ if (NULL != h->init_timeout_task_id)
{
- GNUNET_SCHEDULER_cancel (handle->init_timeout_task_id);
- handle->init_timeout_task_id = GNUNET_SCHEDULER_NO_TASK;
+ GNUNET_SCHEDULER_cancel (h->init_timeout_task_id);
+ h->init_timeout_task_id = NULL;
}
- if (NULL != handle->monitor)
+ if (NULL != h->monitor)
{
- GNUNET_CLIENT_disconnect (handle->monitor);
- handle->monitor = NULL;
+ GNUNET_CLIENT_disconnect (h->monitor);
+ h->monitor = NULL;
}
- if (GNUNET_SCHEDULER_NO_TASK != handle->reconnect_task)
+ if (NULL != h->reconnect_task)
{
- GNUNET_SCHEDULER_cancel (handle->reconnect_task);
- handle->reconnect_task = GNUNET_SCHEDULER_NO_TASK;
+ GNUNET_SCHEDULER_cancel (h->reconnect_task);
+ h->reconnect_task = NULL;
}
- GNUNET_CONFIGURATION_destroy (handle->cfg);
- GNUNET_free (handle);
+ GNUNET_CONFIGURATION_destroy (h->cfg);
+ GNUNET_free (h);
}
reconnect_arm_monitor_later (h);
return;
}
- if (GNUNET_SCHEDULER_NO_TASK != h->init_timeout_task_id)
+ if (NULL != h->init_timeout_task_id)
{
GNUNET_SCHEDULER_cancel (h->init_timeout_task_id);
- h->init_timeout_task_id = GNUNET_SCHEDULER_NO_TASK;
+ h->init_timeout_task_id = NULL;
}
res = (const struct GNUNET_ARM_StatusMessage *) msg;
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Received response from ARM for service `%s': %u\n",
(const char *) &res[1], ntohs (msg->type));
status = (enum GNUNET_ARM_ServiceStatus) ntohl (res->status);
- if ((NULL != h->service_status))
- h->service_status (h->cls, h, (const char *) &res[1], status);
+ GNUNET_CLIENT_receive (h->monitor, &monitor_notify_handler, h,
+ GNUNET_TIME_UNIT_FOREVER_REL);
+ if (NULL != h->service_status)
+ h->service_status (h->cls, (const char *) &res[1], status);
break;
default:
reconnect_arm_monitor_later (h);
return;
}
- GNUNET_CLIENT_receive (h->monitor, &monitor_notify_handler, h,
- GNUNET_TIME_UNIT_FOREVER_REL);
}
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