/*
This file is part of GNUnet
- (C) 2004, 2005, 2006, 2007, 2009, 2010, 2011 Christian Grothoff (and other contributing authors)
+ (C) 2004-2013 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
/**
* Transmit DROP message to datastore service.
*
- * @param cls the 'struct GNUNET_DATASTORE_Handle'
- * @param size number of bytes that can be copied to buf
+ * @param cls the `struct GNUNET_DATASTORE_Handle`
+ * @param size number of bytes that can be copied to @a buf
* @param buf where to copy the drop message
- * @return number of bytes written to buf
+ * @return number of bytes written to @a buf
*/
static size_t
transmit_drop (void *cls, size_t size, void *buf)
* associated resources).
*
* @param h handle to the datastore
- * @param drop set to GNUNET_YES to delete all data in datastore (!)
+ * @param drop set to #GNUNET_YES to delete all data in datastore (!)
*/
void
GNUNET_DATASTORE_disconnect (struct GNUNET_DATASTORE_Handle *h, int drop)
/**
* A request has timed out (before being transmitted to the service).
*
- * @param cls the 'struct GNUNET_DATASTORE_QueueEntry'
+ * @param cls the `struct GNUNET_DATASTORE_QueueEntry`
* @param tc scheduler context
*/
static void
timeout_queue_entry (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
struct GNUNET_DATASTORE_QueueEntry *qe = cls;
+ struct GNUNET_DATASTORE_Handle *h = qe->h;
- GNUNET_STATISTICS_update (qe->h->stats,
+ GNUNET_STATISTICS_update (h->stats,
gettext_noop ("# queue entry timeouts"), 1,
GNUNET_NO);
qe->task = GNUNET_SCHEDULER_NO_TASK;
GNUNET_assert (GNUNET_NO == qe->was_transmitted);
- LOG (GNUNET_ERROR_TYPE_DEBUG, "Timeout of request in datastore queue\n");
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Timeout of request in datastore queue\n");
+ /* response_proc's expect request at the head of the queue! */
+ GNUNET_CONTAINER_DLL_remove (h->queue_head, h->queue_tail, qe);
+ GNUNET_CONTAINER_DLL_insert (h->queue_head, h->queue_tail, qe);
+ GNUNET_assert (h->queue_head == qe);
qe->response_proc (qe->h, NULL);
}
* (if other requests of higher priority are in the queue)
* @param timeout timeout for the operation
* @param response_proc function to call with replies (can be NULL)
- * @param qc client context (NOT a closure for response_proc)
+ * @param qc client context (NOT a closure for @a response_proc)
* @return NULL if the queue is full
*/
static struct GNUNET_DATASTORE_QueueEntry *
{
if ((pos->max_queue < h->queue_size) && (pos->was_transmitted == GNUNET_NO))
{
- GNUNET_assert (pos->response_proc != NULL);
+ GNUNET_assert (NULL != pos->response_proc);
/* move 'pos' element to head so that it will be
* killed on 'NULL' call below */
- LOG (GNUNET_ERROR_TYPE_DEBUG, "Dropping request from datastore queue\n");
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Dropping request from datastore queue\n");
+ /* response_proc's expect request at the head of the queue! */
GNUNET_CONTAINER_DLL_remove (h->queue_head, h->queue_tail, pos);
GNUNET_CONTAINER_DLL_insert (h->queue_head, h->queue_tail, pos);
GNUNET_STATISTICS_update (h->stats,
/**
* Try reconnecting to the datastore service.
*
- * @param cls the 'struct GNUNET_DATASTORE_Handle'
+ * @param cls the `struct GNUNET_DATASTORE_Handle`
* @param tc scheduler context
*/
static void
/**
* Transmit request from queue to datastore service.
*
- * @param cls the 'struct GNUNET_DATASTORE_Handle'
- * @param size number of bytes that can be copied to buf
+ * @param cls the `struct GNUNET_DATASTORE_Handle`
+ * @param size number of bytes that can be copied to @a buf
* @param buf where to copy the drop message
- * @return number of bytes written to buf
+ * @return number of bytes written to @a buf
*/
static size_t
transmit_request (void *cls, size_t size, void *buf)
* @param emsg error message
*/
static void
-drop_status_cont (void *cls, int32_t result,
+drop_status_cont (void *cls, int32_t result,
struct GNUNET_TIME_Absolute min_expiration,
const char *emsg)
{
h->retry_time = GNUNET_TIME_UNIT_ZERO;
process_queue (h);
if (rc.cont != NULL)
- rc.cont (rc.cont_cls, status,
+ rc.cont (rc.cont_cls, status,
GNUNET_TIME_absolute_ntoh (sm->min_expiration),
emsg);
}
* (if other requests of higher priority are in the queue)
* @param timeout timeout for the operation
* @param cont continuation to call when done
- * @param cont_cls closure for cont
+ * @param cont_cls closure for @a cont
* @return NULL if the entry was not queued, otherwise a handle that can be used to
* cancel; note that even if NULL is returned, the callback will be invoked
* (or rather, will already have been invoked)
* @param timeout how long to wait at most for a response (or before dying in queue)
* @param cont continuation to call when done; "success" will be set to
* a positive reservation value if space could be reserved.
- * @param cont_cls closure for cont
+ * @param cont_cls closure for @a cont
* @return NULL if the entry was not queued, otherwise a handle that can be used to
* cancel; note that even if NULL is returned, the callback will be invoked
* (or rather, will already have been invoked)
max_queue_size, timeout, &process_status_message, &qc);
if (qe == NULL)
{
- LOG (GNUNET_ERROR_TYPE_DEBUG, "Could not create queue entry to reserve\n");
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Could not create queue entry to reserve\n");
return NULL;
}
GNUNET_STATISTICS_update (h->stats,
* (if other requests of higher priority are in the queue)
* @param timeout how long to wait at most for a response
* @param cont continuation to call when done
- * @param cont_cls closure for cont
+ * @param cont_cls closure for @a cont
* @return NULL if the entry was not queued, otherwise a handle that can be used to
* cancel; note that even if NULL is returned, the callback will be invoked
* (or rather, will already have been invoked)
* (if other requests of higher priority are in the queue)
* @param timeout how long to wait at most for a response
* @param cont continuation to call when done
- * @param cont_cls closure for cont
+ * @param cont_cls closure for @a cont
* @return NULL if the entry was not queued, otherwise a handle that can be used to
* cancel; note that even if NULL is returned, the callback will be invoked
* (or rather, will already have been invoked)
cont = &drop_status_cont;
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Asked to update entry %llu raising priority by %u and expiration to %s\n",
- uid,
+ uid,
(unsigned int) priority,
GNUNET_STRINGS_absolute_time_to_string (expiration));
qc.sc.cont = cont;
max_queue_size, timeout, &process_status_message, &qc);
if (qe == NULL)
{
- LOG (GNUNET_ERROR_TYPE_DEBUG, "Could not create queue entry for UPDATE\n");
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Could not create queue entry for UPDATE\n");
return NULL;
}
GNUNET_STATISTICS_update (h->stats,
/**
* Explicitly remove some content from the database.
- * The "cont"inuation will be called with status
- * "GNUNET_OK" if content was removed, "GNUNET_NO"
- * if no matching entry was found and "GNUNET_SYSERR"
+ * The @a cont continuation will be called with `status`
+ * #GNUNET_OK" if content was removed, #GNUNET_NO
+ * if no matching entry was found and #GNUNET_SYSERR
* on all other types of errors.
*
* @param h handle to the datastore
* (if other requests of higher priority are in the queue)
* @param timeout how long to wait at most for a response
* @param cont continuation to call when done
- * @param cont_cls closure for cont
+ * @param cont_cls closure for @a cont
* @return NULL if the entry was not queued, otherwise a handle that can be used to
* cancel; note that even if NULL is returned, the callback will be invoked
* (or rather, will already have been invoked)
* Type of a function to call when we receive a message
* from the service.
*
- * @param cls closure
+ * @param cls closure with the `struct GNUNET_DATASTORE_Handle *`
* @param msg message received, NULL on timeout or fatal error
*/
static void
h->retry_time = GNUNET_TIME_UNIT_ZERO;
h->result_count = 0;
process_queue (h);
- if (rc.proc != NULL)
+ if (NULL != rc.proc)
rc.proc (rc.proc_cls, NULL, 0, NULL, 0, 0, 0, GNUNET_TIME_UNIT_ZERO_ABS,
0);
return;
* @param proc function to call on a random value; it
* will be called once with a value (if available)
* and always once with a value of NULL.
- * @param proc_cls closure for proc
+ * @param proc_cls closure for @a proc
* @return NULL if the entry was not queued, otherwise a handle that can be used to
* cancel
*/
qe = make_queue_entry (h, sizeof (struct GNUNET_MessageHeader),
queue_priority, max_queue_size, timeout,
&process_result_message, &qc);
- if (qe == NULL)
+ if (NULL == qe)
{
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Could not create queue entry for GET REPLICATION\n");
* @param proc function to call on a random value; it
* will be called once with a value (if available)
* or with NULL if none value exists.
- * @param proc_cls closure for proc
+ * @param proc_cls closure for @a proc
* @return NULL if the entry was not queued, otherwise a handle that can be used to
* cancel
*/
qe = make_queue_entry (h, sizeof (struct GetZeroAnonymityMessage),
queue_priority, max_queue_size, timeout,
&process_result_message, &qc);
- if (qe == NULL)
+ if (NULL == qe)
{
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Could not create queue entry for zero-anonymity procation\n");
* @param timeout how long to wait at most for a response
* @param proc function to call on each matching value;
* will be called once with a NULL value at the end
- * @param proc_cls closure for proc
+ * @param proc_cls closure for @a proc
* @return NULL if the entry was not queued, otherwise a handle that can be used to
* cancel
*/