*/
/**
- * @file experimentation/gnunet-daemon-experimentation.c
- * @brief experimentation daemon
+ * @file experimentation/gnunet-daemon-experimentation_nodes.c
+ * @brief experimentation daemon: node management
* @author Christian Grothoff
* @author Matthias Wachs
*/
#include "gnunet_statistics_service.h"
#include "gnunet-daemon-experimentation.h"
-#define EXP_RESPONSE_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 10)
+#define FAST_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 5)
+/**
+ * Core handle
+ */
static struct GNUNET_CORE_Handle *ch;
+
+/**
+ * Peer's own identity
+ */
static struct GNUNET_PeerIdentity me;
-static struct GNUNET_STATISTICS_Handle *stats;
/**
* Nodes with a pending request
*/
-
struct GNUNET_CONTAINER_MultiHashMap *nodes_requested;
+
/**
* Active experimentation nodes
*/
struct GNUNET_CONTAINER_MultiHashMap *nodes_active;
+
/**
* Inactive experimentation nodes
* To be excluded from future requests
*/
struct GNUNET_CONTAINER_MultiHashMap *nodes_inactive;
+struct NodeComCtx
+{
+ struct NodeComCtx *prev;
+ struct NodeComCtx *next;
+
+ struct Node *n;
+ struct Experiment *e;
+
+ size_t size;
+ GNUNET_CONNECTION_TransmitReadyNotify notify;
+ void *notify_cls;
+};
+
+/**
+ * Update statistics
+ *
+ * @param m hashmap to update values from
+ */
static void update_stats (struct GNUNET_CONTAINER_MultiHashMap *m)
{
GNUNET_assert (NULL != m);
- GNUNET_assert (NULL != stats);
+ GNUNET_assert (NULL != GED_stats);
if (m == nodes_active)
{
- GNUNET_STATISTICS_set (stats, "# nodes active",
+ GNUNET_STATISTICS_set (GED_stats, "# nodes active",
GNUNET_CONTAINER_multihashmap_size(m), GNUNET_NO);
}
else if (m == nodes_inactive)
{
- GNUNET_STATISTICS_set (stats, "# nodes inactive",
+ GNUNET_STATISTICS_set (GED_stats, "# nodes inactive",
GNUNET_CONTAINER_multihashmap_size(m), GNUNET_NO);
}
else if (m == nodes_requested)
{
- GNUNET_STATISTICS_set (stats, "# nodes requested",
+ GNUNET_STATISTICS_set (GED_stats, "# nodes requested",
GNUNET_CONTAINER_multihashmap_size(m), GNUNET_NO);
}
else
}
+
+/**
+ * Clean up node
+ *
+ * @param cls the hashmap to clean up
+ * @param key key of the current node
+ * @param value related node object
+ * @return always GNUNET_OK
+ */
static int
-cleanup_nodes (void *cls,
+cleanup_node (void *cls,
const struct GNUNET_HashCode * key,
void *value)
{
struct Node *n;
+ struct NodeComCtx *e_cur;
+ struct NodeComCtx *e_next;
struct GNUNET_CONTAINER_MultiHashMap *cur = cls;
n = value;
GNUNET_SCHEDULER_cancel (n->timeout_task);
n->timeout_task = GNUNET_SCHEDULER_NO_TASK;
}
+
if (NULL != n->cth)
{
GNUNET_CORE_notify_transmit_ready_cancel (n->cth);
n->cth = NULL;
}
+ e_next = n->e_req_head;
+ while (NULL != (e_cur = e_next))
+ {
+ e_next = e_cur->next;
+ GNUNET_CONTAINER_DLL_remove (n->e_req_head, n->e_req_tail, e_cur);
+ GNUNET_free (e_cur);
+ }
+ GNUNET_free_non_null (n->issuer_id);
- GNUNET_CONTAINER_multihashmap_remove (cur, key, value);
+ GNUNET_break (0 == GNUNET_CONTAINER_multihashmap_remove (cur, key, value));
GNUNET_free (value);
return GNUNET_OK;
}
+/**
+ * Check if id passed is my id
+ *
+ * @param id the id to check
+ * @return GNUNET_YES or GNUNET_NO
+ */
static int is_me (const struct GNUNET_PeerIdentity *id)
{
if (0 == memcmp (&me, id, sizeof (me)))
return GNUNET_NO;
}
+/**
+ * Core startup callback
+ *
+ * @param cls unused
+ * @param my_identity my id
+ */
static void
core_startup_handler (void *cls,
- struct GNUNET_CORE_Handle * server,
const struct GNUNET_PeerIdentity *my_identity)
{
- me = *my_identity;
+ me = *my_identity;
+}
+
+
+static void
+schedule_transmisson (struct NodeComCtx *e_ctx);
+
+
+static size_t
+transmit_read_wrapper (void *cls, size_t bufsize, void *buf)
+{
+ struct NodeComCtx *e_ctx = cls;
+ struct NodeComCtx *next = NULL;
+
+ size_t res = e_ctx->notify (e_ctx->notify_cls, bufsize, buf);
+ e_ctx->n->cth = NULL;
+
+ GNUNET_CONTAINER_DLL_remove (e_ctx->n->e_req_head, e_ctx->n->e_req_tail, e_ctx);
+ next = e_ctx->n->e_req_head;
+ GNUNET_free (e_ctx);
+
+ if (NULL != next)
+ {
+ /* Schedule next message */
+ schedule_transmisson (next);
+ }
+ return res;
+}
+
+
+static void
+schedule_transmisson (struct NodeComCtx *e_ctx)
+{
+ if (NULL != e_ctx->n->cth)
+ return;
+
+ e_ctx->n->cth = GNUNET_CORE_notify_transmit_ready (ch, GNUNET_NO, 0, FAST_TIMEOUT,
+ &e_ctx->n->id, e_ctx->size, transmit_read_wrapper, e_ctx);
+ if (NULL == e_ctx->n->cth)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING, _("Cannot send message to peer `%s' for experiment `%s'\n"),
+ GNUNET_i2s(&e_ctx->n->id), e_ctx->e->name);
+ GNUNET_free (e_ctx);
+ }
+
}
+
+/**
+ * Remove experimentation request due to timeout
+ *
+ * @param cls the related node
+ * @param tc scheduler's task context
+ */
static void
remove_request (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
struct Node *n = cls;
- GNUNET_log (GNUNET_ERROR_TYPE_INFO, _("Removing request for peer %s due to timeout\n"),
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Removing request for peer %s due to timeout\n",
GNUNET_i2s (&n->id));
if (GNUNET_YES == GNUNET_CONTAINER_multihashmap_contains (nodes_requested, &n->id.hashPubKey))
{
- GNUNET_CONTAINER_multihashmap_remove (nodes_requested, &n->id.hashPubKey, n);
+ GNUNET_break (0 == GNUNET_CONTAINER_multihashmap_remove (nodes_requested, &n->id.hashPubKey, n));
update_stats (nodes_requested);
GNUNET_CONTAINER_multihashmap_put (nodes_inactive, &n->id.hashPubKey, n,
GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST);
update_stats (nodes_inactive);
}
-
n->timeout_task = GNUNET_SCHEDULER_NO_TASK;
- if (NULL != n->cth)
- {
- GNUNET_CORE_notify_transmit_ready_cancel (n->cth);
- n->cth = NULL;
- }
}
-size_t send_request_cb (void *cls, size_t bufsize, void *buf)
+
+/**
+ * Core's transmit notify callback to send request
+ *
+ * @param cls the related node
+ * @param bufsize buffer size
+ * @param buf the buffer to copy to
+ * @return bytes passed
+ */
+size_t send_experimentation_request_cb (void *cls, size_t bufsize, void *buf)
{
struct Node *n = cls;
struct Experimentation_Request msg;
- size_t size = sizeof (msg);
+ size_t msg_size = sizeof (msg);
+ size_t ri_size = sizeof (struct Experimentation_Issuer) * GSE_my_issuer_count;
+ size_t total_size = msg_size + ri_size;
+ memset (buf, '\0', bufsize);
n->cth = NULL;
if (buf == NULL)
{
GNUNET_SCHEDULER_add_now (&remove_request, n);
return 0;
}
- GNUNET_assert (bufsize >= size);
+ GNUNET_assert (bufsize >= total_size);
- msg.msg.size = htons (size);
+ msg.msg.size = htons (total_size);
msg.msg.type = htons (GNUNET_MESSAGE_TYPE_EXPERIMENTATION_REQUEST);
- memcpy (buf, &msg, size);
+ msg.capabilities = htonl (GSE_node_capabilities);
+ msg.issuer_count = htonl (GSE_my_issuer_count);
+ memcpy (buf, &msg, msg_size);
+ memcpy (&((char *) buf)[msg_size], GSE_my_issuer, ri_size);
- GNUNET_log (GNUNET_ERROR_TYPE_INFO, _("Sending request to peer %s\n"),
+ GNUNET_log (GNUNET_ERROR_TYPE_INFO, _("Sending experimentation request to peer %s\n"),
GNUNET_i2s (&n->id));
- return size;
+ return total_size;
}
-static void send_request (const struct GNUNET_PeerIdentity *peer)
+
+/**
+ * Send request to peer to start add him to to the set of experimentation nodes
+ *
+ * @param peer the peer to send to
+ */
+static void send_experimentation_request (const struct GNUNET_PeerIdentity *peer)
{
struct Node *n;
+ struct NodeComCtx *e_ctx;
size_t size;
+ size_t c_issuers;
- size = sizeof (struct Experimentation_Request);
+ c_issuers = GSE_my_issuer_count;
+
+ size = sizeof (struct Experimentation_Request) +
+ c_issuers * sizeof (struct Experimentation_Issuer);
n = GNUNET_malloc (sizeof (struct Node));
n->id = *peer;
n->timeout_task = GNUNET_SCHEDULER_add_delayed (EXP_RESPONSE_TIMEOUT, &remove_request, n);
- n->cth = GNUNET_CORE_notify_transmit_ready(ch, GNUNET_NO, 0,
- GNUNET_TIME_relative_get_forever_(),
- peer, size, send_request_cb, n);
+ n->capabilities = NONE;
+
+ e_ctx = GNUNET_malloc (sizeof (struct NodeComCtx));
+ e_ctx->n = n;
+ e_ctx->e = NULL;
+ e_ctx->size = size;
+ e_ctx->notify = &send_experimentation_request_cb;
+ e_ctx->notify_cls = n;
+ GNUNET_CONTAINER_DLL_insert_tail(n->e_req_head, n->e_req_tail, e_ctx);
+ schedule_transmisson (e_ctx);
GNUNET_assert (GNUNET_OK == GNUNET_CONTAINER_multihashmap_put (nodes_requested,
&peer->hashPubKey, n, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST));
-
update_stats (nodes_requested);
}
+
+/**
+ * Core's transmit notify callback to send response
+ *
+ * @param cls the related node
+ * @param bufsize buffer size
+ * @param buf the buffer to copy to
+ * @return bytes passed
+ */
size_t send_response_cb (void *cls, size_t bufsize, void *buf)
{
struct Node *n = cls;
struct Experimentation_Response msg;
- size_t size = sizeof (msg);
+ size_t ri_size = GSE_my_issuer_count * sizeof (struct Experimentation_Issuer);
+ size_t msg_size = sizeof (msg);
+ size_t total_size = msg_size + ri_size;
n->cth = NULL;
if (buf == NULL)
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Client disconnected\n");
return 0;
}
- GNUNET_assert (bufsize >= size);
+ GNUNET_assert (bufsize >= total_size);
- msg.msg.size = htons (size);
+ msg.msg.size = htons (total_size);
msg.msg.type = htons (GNUNET_MESSAGE_TYPE_EXPERIMENTATION_RESPONSE);
- memcpy (buf, &msg, size);
+ msg.capabilities = htonl (GSE_node_capabilities);
+ msg.issuer_count = htonl (GSE_my_issuer_count);
+ memcpy (buf, &msg, msg_size);
+ memcpy (&((char *) buf)[msg_size], GSE_my_issuer, ri_size);
- GNUNET_log (GNUNET_ERROR_TYPE_INFO, _("Sending response to peer %s\n"),
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sending response to peer %s\n",
GNUNET_i2s (&n->id));
- return size;
+ return total_size;
}
-static void handle_request (const struct GNUNET_PeerIdentity *peer)
+static void
+get_experiments_cb (struct Node *n, struct Experiment *e)
+{
+ static int counter = 0;
+ if (NULL == e)
+ return; /* Done */
+
+ /* Tell the scheduler to add a node with an experiment */
+ GED_scheduler_add (n, e, GNUNET_YES);
+ counter ++;
+}
+
+struct Node *
+get_node (const struct GNUNET_PeerIdentity *id)
+{
+ struct Node * res;
+ struct Node * tmp;
+
+ res = NULL;
+ tmp = NULL;
+ tmp = GNUNET_CONTAINER_multihashmap_get (nodes_active, &id->hashPubKey);
+ if (res == NULL)
+ res = tmp;
+
+ tmp = GNUNET_CONTAINER_multihashmap_get (nodes_inactive, &id->hashPubKey);
+ if (res == NULL)
+ res = tmp;
+ else
+ GNUNET_break (0); /* Multiple instances */
+
+ tmp = GNUNET_CONTAINER_multihashmap_get (nodes_requested, &id->hashPubKey);
+ if (res == NULL)
+ res = tmp;
+ else
+ GNUNET_break (0); /* Multiple instances */
+
+ return res;
+}
+
+
+/**
+ * Set a specific node as active
+ *
+ * @param n the node
+ */
+static void node_make_active (struct Node *n)
+{
+ int c1;
+ GNUNET_CONTAINER_multihashmap_put (nodes_active,
+ &n->id.hashPubKey, n, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST);
+ update_stats (nodes_active);
+ GNUNET_log (GNUNET_ERROR_TYPE_INFO, _("Added peer `%s' as active node\n"),
+ GNUNET_i2s (&n->id));
+ /* Request experiments for this node to start them */
+ for (c1 = 0; c1 < n->issuer_count; c1++)
+ {
+
+ GED_experiments_get (n, &n->issuer_id[c1], &get_experiments_cb);
+ }
+}
+
+
+/**
+ * Handle a request and send a response
+ *
+ * @param peer the source
+ * @param message the message
+ */
+static void handle_request (const struct GNUNET_PeerIdentity *peer,
+ const struct GNUNET_MessageHeader *message)
{
struct Node *n;
+ struct NodeComCtx *e_ctx;
+ struct Experimentation_Request *rm = (struct Experimentation_Request *) message;
+ struct Experimentation_Issuer *rmi = (struct Experimentation_Issuer *) &rm[1];
+ int c1;
+ int c2;
+ uint32_t ic;
+ uint32_t ic_accepted;
+ int make_active;
+
+ if (ntohs (message->size) < sizeof (struct Experimentation_Request))
+ {
+ GNUNET_break (0);
+ return;
+ }
+ ic = ntohl (rm->issuer_count);
+ if (ntohs (message->size) != sizeof (struct Experimentation_Request) + ic * sizeof (struct Experimentation_Issuer))
+ {
+ GNUNET_break (0);
+ return;
+ }
+ make_active = GNUNET_NO;
if (NULL != (n = GNUNET_CONTAINER_multihashmap_get (nodes_active, &peer->hashPubKey)))
{
- GNUNET_log (GNUNET_ERROR_TYPE_INFO, _("Received %s from %s peer `%s'\n"),
- "REQUEST", "active", GNUNET_i2s (peer));
+ /* Nothing to do */
}
else if (NULL != (n = GNUNET_CONTAINER_multihashmap_get (nodes_requested, &peer->hashPubKey)))
{
- GNUNET_log (GNUNET_ERROR_TYPE_INFO, _("Received %s from %s peer `%s'\n"),
- "REQUEST", "requested", GNUNET_i2s (peer));
GNUNET_CONTAINER_multihashmap_remove (nodes_requested, &peer->hashPubKey, n);
if (GNUNET_SCHEDULER_NO_TASK != n->timeout_task)
{
GNUNET_SCHEDULER_cancel (n->timeout_task);
n->timeout_task = GNUNET_SCHEDULER_NO_TASK;
}
- if (NULL != n->cth)
- {
- GNUNET_CORE_notify_transmit_ready_cancel (n->cth);
- n->cth = NULL;
- }
update_stats (nodes_requested);
- GNUNET_CONTAINER_multihashmap_put (nodes_active,
- &peer->hashPubKey, n, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST);
- update_stats (nodes_active);
- GNUNET_log (GNUNET_ERROR_TYPE_INFO, _("Added peer `%s' active node \n"),
- GNUNET_i2s (peer));
+ make_active = GNUNET_YES;
}
else if (NULL != (n = GNUNET_CONTAINER_multihashmap_get (nodes_inactive, &peer->hashPubKey)))
{
- GNUNET_log (GNUNET_ERROR_TYPE_INFO, _("Received %s from %s peer `%s'\n"),
- "REQUEST", "inactive", GNUNET_i2s (peer));
- GNUNET_CONTAINER_multihashmap_remove (nodes_inactive, &peer->hashPubKey, n);
+ GNUNET_break (0 == GNUNET_CONTAINER_multihashmap_remove (nodes_inactive, &peer->hashPubKey, n));
update_stats (nodes_inactive);
- GNUNET_CONTAINER_multihashmap_put (nodes_active,
- &peer->hashPubKey, n, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST);
- update_stats (nodes_active);
- GNUNET_log (GNUNET_ERROR_TYPE_INFO, _("Added peer `%s' active node \n"),
- GNUNET_i2s (peer));
+ make_active = GNUNET_YES;
}
else
{
/* Create new node */
n = GNUNET_malloc (sizeof (struct Node));
n->id = *peer;
- GNUNET_log (GNUNET_ERROR_TYPE_INFO, _("Received %s from %s peer `%s'\n"),
- "REQUEST", "new", GNUNET_i2s (peer));
- GNUNET_CONTAINER_multihashmap_put (nodes_active,
- &peer->hashPubKey, n, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST);
- update_stats (nodes_active);
- GNUNET_log (GNUNET_ERROR_TYPE_INFO, _("Added peer `%s' active node \n"),
- GNUNET_i2s (peer));
- }
-
- n->cth = GNUNET_CORE_notify_transmit_ready (ch, GNUNET_NO, 0,
- GNUNET_TIME_relative_get_forever_(),
- peer, sizeof (struct Experimentation_Response),
- send_response_cb, n);
+ n->capabilities = NONE;
+ make_active = GNUNET_YES;
+ }
+
+ /* Update node */
+ n->capabilities = ntohl (rm->capabilities);
+
+ /* Filter accepted issuer */
+ ic_accepted = 0;
+ for (c1 = 0; c1 < ic; c1++)
+ {
+ if (GNUNET_YES == GED_experiments_issuer_accepted(&rmi[c1].issuer_id))
+ ic_accepted ++;
+ }
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Request from peer `%s' with %u issuers, we accepted %u issuer \n",
+ GNUNET_i2s (peer), ic, ic_accepted);
+ GNUNET_free_non_null (n->issuer_id);
+ n->issuer_id = GNUNET_malloc (ic_accepted * sizeof (struct GNUNET_PeerIdentity));
+ c2 = 0;
+ for (c1 = 0; c1 < ic; c1++)
+ {
+ if (GNUNET_YES == GED_experiments_issuer_accepted(&rmi[c1].issuer_id))
+ {
+ n->issuer_id[c2] = rmi[c1].issuer_id;
+ c2 ++;
+ }
+ }
+ n->issuer_count = ic_accepted;
+
+ if (GNUNET_YES == make_active)
+ node_make_active (n);
+
+ /* Send response */
+ e_ctx = GNUNET_malloc (sizeof (struct NodeComCtx));
+ e_ctx->n = n;
+ e_ctx->e = NULL;
+ e_ctx->size = sizeof (struct Experimentation_Response) + GSE_my_issuer_count * sizeof (struct Experimentation_Issuer);
+ e_ctx->notify = &send_response_cb;
+ e_ctx->notify_cls = n;
+
+ GNUNET_CONTAINER_DLL_insert_tail(n->e_req_head, n->e_req_tail, e_ctx);
+ schedule_transmisson (e_ctx);
}
-static void handle_response (const struct GNUNET_PeerIdentity *peer)
+
+/**
+ * Handle a response
+ *
+ * @param peer the source
+ * @param message the message
+ */
+static void handle_response (const struct GNUNET_PeerIdentity *peer,
+ const struct GNUNET_MessageHeader *message)
{
struct Node *n;
+ struct Experimentation_Response *rm = (struct Experimentation_Response *) message;
+ struct Experimentation_Issuer *rmi = (struct Experimentation_Issuer *) &rm[1];
+ uint32_t ic;
+ uint32_t ic_accepted;
+ int make_active;
+ unsigned int c1;
+ unsigned int c2;
+
+ if (ntohs (message->size) < sizeof (struct Experimentation_Response))
+ {
+ GNUNET_break (0);
+ return;
+ }
+ ic = ntohl (rm->issuer_count);
+ if (ntohs (message->size) != sizeof (struct Experimentation_Response) + ic * sizeof (struct Experimentation_Issuer))
+ {
+ GNUNET_break (0);
+ return;
+ }
+ make_active = GNUNET_NO;
if (NULL != (n = GNUNET_CONTAINER_multihashmap_get (nodes_active, &peer->hashPubKey)))
{
- GNUNET_log (GNUNET_ERROR_TYPE_INFO, _("Received %s from %s peer `%s'\n"),
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received %s from %s peer `%s'\n",
"RESPONSE", "active", GNUNET_i2s (peer));
}
else if (NULL != (n = GNUNET_CONTAINER_multihashmap_get (nodes_requested, &peer->hashPubKey)))
{
- GNUNET_log (GNUNET_ERROR_TYPE_INFO, _("Received %s from %s peer `%s'\n"),
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received %s from %s peer `%s'\n",
"RESPONSE", "requested", GNUNET_i2s (peer));
GNUNET_CONTAINER_multihashmap_remove (nodes_requested, &peer->hashPubKey, n);
if (GNUNET_SCHEDULER_NO_TASK != n->timeout_task)
GNUNET_SCHEDULER_cancel (n->timeout_task);
n->timeout_task = GNUNET_SCHEDULER_NO_TASK;
}
- if (NULL != n->cth)
- {
- GNUNET_CORE_notify_transmit_ready_cancel (n->cth);
- n->cth = NULL;
- }
update_stats (nodes_requested);
- GNUNET_CONTAINER_multihashmap_put (nodes_active,
- &peer->hashPubKey, n, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST);
- update_stats (nodes_active);
- GNUNET_log (GNUNET_ERROR_TYPE_INFO, _("Added peer `%s' active node \n"),
- GNUNET_i2s (peer));
+ make_active = GNUNET_YES;
}
else if (NULL != (n = GNUNET_CONTAINER_multihashmap_get (nodes_inactive, &peer->hashPubKey)))
{
- GNUNET_log (GNUNET_ERROR_TYPE_INFO, _("Received %s from peer `%s'\n"),
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received %s from peer `%s'\n",
"RESPONSE", "inactive", GNUNET_i2s (peer));
- GNUNET_CONTAINER_multihashmap_remove (nodes_inactive, &peer->hashPubKey, n);
+ GNUNET_break (0 == GNUNET_CONTAINER_multihashmap_remove (nodes_inactive, &peer->hashPubKey, n));
update_stats (nodes_inactive);
- GNUNET_CONTAINER_multihashmap_put (nodes_active,
- &peer->hashPubKey, n, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST);
- update_stats (nodes_active);
- GNUNET_log (GNUNET_ERROR_TYPE_INFO, _("Added peer `%s' active node \n"),
- GNUNET_i2s (peer));
+ make_active = GNUNET_YES;
}
else
{
- GNUNET_log (GNUNET_ERROR_TYPE_INFO, _("Received %s from %s peer `%s'\n"),
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received %s from %s peer `%s'\n",
"RESPONSE", "unknown", GNUNET_i2s (peer));
+ return;
+ }
+
+ /* Update */
+ n->capabilities = ntohl (rm->capabilities);
+
+ /* Filter accepted issuer */
+ ic_accepted = 0;
+ for (c1 = 0; c1 < ic; c1++)
+ {
+ if (GNUNET_YES == GED_experiments_issuer_accepted(&rmi[c1].issuer_id))
+ ic_accepted ++;
+ }
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Response from peer `%s' with %u issuers, we accepted %u issuer \n",
+ GNUNET_i2s (peer), ic, ic_accepted);
+ GNUNET_free_non_null (n->issuer_id);
+ n->issuer_id = GNUNET_malloc (ic_accepted * sizeof (struct GNUNET_PeerIdentity));
+ c2 = 0;
+ for (c1 = 0; c1 < ic; c1++)
+ {
+ if (GNUNET_YES == GED_experiments_issuer_accepted(&rmi[c1].issuer_id))
+ {
+ n->issuer_id[c2] = rmi[c1].issuer_id;
+ c2 ++;
+ }
}
+ n->issuer_count = ic_accepted;
+
+ if (GNUNET_YES == make_active)
+ node_make_active (n);
+}
+
+/**
+ * Handle a response
+ *
+ * @param peer the source
+ * @param message the message
+ */
+static void handle_start (const struct GNUNET_PeerIdentity *peer,
+ const struct GNUNET_MessageHeader *message)
+{
+ uint16_t size;
+ uint32_t name_len;
+ const struct GED_start_message *msg;
+ const char *name;
+ struct Node *n;
+ struct Experiment *e;
+
+ if (NULL == peer)
+ {
+ GNUNET_break (0);
+ return;
+ }
+ if (NULL == message)
+ {
+ GNUNET_break (0);
+ return;
+ }
+
+ size = ntohs (message->size);
+ if (size < sizeof (struct GED_start_message))
+ {
+ GNUNET_break (0);
+ return;
+ }
+ msg = (const struct GED_start_message *) message;
+ name_len = ntohl (msg->len_name);
+ if (size != sizeof (struct GED_start_message) + name_len)
+ {
+ GNUNET_break (0);
+ return;
+ }
+
+ n = get_node (peer);
+ if (NULL == n)
+ {
+ GNUNET_break (0);
+ return;
+ }
+ name = (const char *) &msg[1];
+ if (name[name_len-1] != '\0')
+ {
+ GNUNET_break (0);
+ return;
+ }
+
+ if (name_len != strlen (name) + 1)
+ {
+ GNUNET_break (0);
+ return;
+ }
+
+ e = GED_experiments_find (&msg->issuer, name, GNUNET_TIME_absolute_ntoh(msg->version_nbo));
+ if (NULL == e)
+ {
+ GNUNET_break (0);
+ return;
+ }
+
+ GED_scheduler_handle_start (n, e);
+}
+
+/**
+ * Handle a response
+ *
+ * @param peer the source
+ * @param message the message
+ */
+static void handle_start_ack (const struct GNUNET_PeerIdentity *peer,
+ const struct GNUNET_MessageHeader *message)
+{
+ uint16_t size;
+ uint32_t name_len;
+ const struct GED_start_ack_message *msg;
+ const char *name;
+ struct Node *n;
+ struct Experiment *e;
+
+ if (NULL == peer)
+ {
+ GNUNET_break (0);
+ return;
+ }
+ if (NULL == message)
+ {
+ GNUNET_break (0);
+ return;
+ }
+
+ size = ntohs (message->size);
+ if (size < sizeof (struct GED_start_ack_message))
+ {
+ GNUNET_break (0);
+ return;
+ }
+ msg = (const struct GED_start_ack_message *) message;
+ name_len = ntohl (msg->len_name);
+ if (size != sizeof (struct GED_start_message) + name_len)
+ {
+ GNUNET_break (0);
+ return;
+ }
+
+ n = get_node (peer);
+ if (NULL == n)
+ {
+ GNUNET_break (0);
+ return;
+ }
+ name = (const char *) &msg[1];
+ if (name[name_len-1] != '\0')
+ {
+ GNUNET_break (0);
+ return;
+ }
+
+ if (name_len != strlen (name) + 1)
+ {
+ GNUNET_break (0);
+ return;
+ }
+
+ e = GED_experiments_find (&msg->issuer, name, GNUNET_TIME_absolute_ntoh(msg->version_nbo));
+ if (NULL == e)
+ {
+ GNUNET_break (0);
+ return;
+ }
+ GED_scheduler_handle_start_ack (n, e);
+}
+
+/**
+ * Handle a response
+ *
+ * @param peer the source
+ * @param message the message
+ */
+static void handle_stop (const struct GNUNET_PeerIdentity *peer,
+ const struct GNUNET_MessageHeader *message)
+{
+ uint16_t size;
+ uint32_t name_len;
+ const struct GED_stop_message *msg;
+ const char *name;
+ struct Node *n;
+ struct Experiment *e;
+
+ if (NULL == peer)
+ {
+ GNUNET_break (0);
+ return;
+ }
+ if (NULL == message)
+ {
+ GNUNET_break (0);
+ return;
+ }
+
+ size = ntohs (message->size);
+ if (size < sizeof (struct GED_stop_message))
+ {
+ GNUNET_break (0);
+ return;
+ }
+ msg = (const struct GED_stop_message *) message;
+ name_len = ntohl (msg->len_name);
+ if (size != sizeof (struct GED_start_message) + name_len)
+ {
+ GNUNET_break (0);
+ return;
+ }
+
+ n = get_node (peer);
+ if (NULL == n)
+ {
+ GNUNET_break (0);
+ return;
+ }
+ name = (const char *) &msg[1];
+ if (name[name_len-1] != '\0')
+ {
+ GNUNET_break (0);
+ return;
+ }
+
+ if (name_len != strlen (name) + 1)
+ {
+ GNUNET_break (0);
+ return;
+ }
+
+ e = GED_experiments_find (&msg->issuer, name, GNUNET_TIME_absolute_ntoh(msg->version_nbo));
+ if (NULL == e)
+ {
+ GNUNET_break (0);
+ return;
+ }
+ GED_scheduler_handle_stop (n, e);
}
/**
if (GNUNET_YES == GNUNET_CONTAINER_multihashmap_contains (nodes_inactive, &peer->hashPubKey))
return; /* This peer is known as inactive */
- send_request (peer);
-
+ send_experimentation_request (peer);
}
void core_disconnect_handler (void *cls,
const struct GNUNET_PeerIdentity * peer)
{
+ struct Node *n;
if (GNUNET_YES == is_me(peer))
return;
GNUNET_log (GNUNET_ERROR_TYPE_INFO, _("Disconnected from peer %s\n"),
GNUNET_i2s (peer));
+ if (NULL != (n = GNUNET_CONTAINER_multihashmap_get (nodes_requested, &peer->hashPubKey)))
+ cleanup_node (nodes_requested, &peer->hashPubKey, n);
+
+ if (NULL != (n = GNUNET_CONTAINER_multihashmap_get (nodes_active, &peer->hashPubKey)))
+ cleanup_node (nodes_active, &peer->hashPubKey, n);
+
+ if (NULL != (n = GNUNET_CONTAINER_multihashmap_get (nodes_inactive, &peer->hashPubKey)))
+ cleanup_node (nodes_inactive, &peer->hashPubKey, n);
}
+/**
+ * Handle a request and send a response
+ *
+ * @param cls unused
+ * @param other the sender
+ * @param message the message
+ * @return GNUNET_OK to keep connection, GNUNET_SYSERR on error
+ */
static int
core_receive_handler (void *cls,
const struct GNUNET_PeerIdentity *other,
switch (ntohs (message->type)) {
case GNUNET_MESSAGE_TYPE_EXPERIMENTATION_REQUEST:
- handle_request (other);
+ handle_request (other, message);
break;
case GNUNET_MESSAGE_TYPE_EXPERIMENTATION_RESPONSE:
- handle_response (other);
+ handle_response (other, message);
+ break;
+ case GNUNET_MESSAGE_TYPE_EXPERIMENTATION_START:
+ handle_start (other, message);
+ break;
+ case GNUNET_MESSAGE_TYPE_EXPERIMENTATION_START_ACK:
+ handle_start_ack (other, message);
+ break;
+ case GNUNET_MESSAGE_TYPE_EXPERIMENTATION_STOP:
+ handle_stop (other, message);
break;
default:
break;
}
+size_t node_experiment_start_cb (void *cls, size_t bufsize, void *buf)
+{
+ struct NodeComCtx *e_ctx = cls;
+ struct GED_start_message *msg;
+ size_t name_len;
+ size_t size;
+
+ if (NULL == buf)
+ return 0;
+
+ name_len = strlen(e_ctx->e->name) + 1;
+ size = sizeof (struct GED_start_message) + name_len;
+
+ msg = GNUNET_malloc (size);
+ msg->header.size = htons (size);
+ msg->header.type = htons (GNUNET_MESSAGE_TYPE_EXPERIMENTATION_START);
+ msg->issuer = e_ctx->e->issuer;
+ msg->version_nbo = GNUNET_TIME_absolute_hton(e_ctx->e->version);
+ msg->len_name = htonl (name_len);
+ memcpy (&msg[1], e_ctx->e->name, name_len);
+
+ memcpy (buf, msg, size);
+ GNUNET_free (msg);
+ return size;
+}
+
+size_t node_experiment_start_ack_cb (void *cls, size_t bufsize, void *buf)
+{
+ struct NodeComCtx *e_ctx = cls;
+ struct GED_start_ack_message *msg;
+ size_t name_len;
+ size_t size;
+ if (NULL == buf)
+ return 0;
+
+ name_len = strlen(e_ctx->e->name) + 1;
+ size = sizeof (struct GED_start_ack_message) + name_len;
+
+ msg = GNUNET_malloc (size);
+ msg->header.size = htons (size);
+ msg->header.type = htons (GNUNET_MESSAGE_TYPE_EXPERIMENTATION_START_ACK);
+ msg->issuer = e_ctx->e->issuer;
+ msg->version_nbo = GNUNET_TIME_absolute_hton(e_ctx->e->version);
+ msg->len_name = htonl (name_len);
+ memcpy (&msg[1], e_ctx->e->name, name_len);
+
+ memcpy (buf, msg, size);
+ GNUNET_free (msg);
+ return size;
+}
+
+
+
/**
- * The main function for the experimentation daemon.
+ * Confirm a experiment START with a node
*
- * @param argc number of arguments from the command line
- * @param argv command line arguments
+ * @return GNUNET_NO if core was busy with sending, GNUNET_OK otherwise
*/
-void
-GNUNET_EXPERIMENTATION_nodes_start (const struct GNUNET_CONFIGURATION_Handle *cfg)
+int
+GED_nodes_send_start_ack (struct Node *n, struct Experiment *e)
{
- GNUNET_log (GNUNET_ERROR_TYPE_INFO, _("Experimentation daemon starting ...\n"));
+ struct NodeComCtx *e_ctx;
- stats = GNUNET_STATISTICS_create ("experimentation", cfg);
- if (NULL == stats)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR, _("Failed to create statistics!\n"));
- return;
- }
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Sending %s for experiment request to peer `%s' for experiment `%s'\n",
+ "START_ACK" ,GNUNET_i2s(&n->id), e->name);
+
+ e_ctx = GNUNET_malloc (sizeof (struct NodeComCtx));
+ e_ctx->n = n;
+ e_ctx->e = e;
+ e_ctx->size = sizeof (struct GED_start_ack_message) + strlen (e->name) + 1;
+ e_ctx->notify = &node_experiment_start_ack_cb;
+ e_ctx->notify_cls = e_ctx;
+
+ GNUNET_CONTAINER_DLL_insert_tail (n->e_req_head, n->e_req_tail, e_ctx);
+ schedule_transmisson (e_ctx);
+ return GNUNET_OK;
+}
+
+/**
+ * Request a experiment to start with a node
+ *
+ * @return GNUNET_NO if core was busy with sending, GNUNET_OK otherwise
+ */
+int
+GED_nodes_send_start (struct Node *n, struct Experiment *e)
+{
+ struct NodeComCtx *e_ctx;
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Sending %s for experiment request to peer `%s' for experiment `%s'\n",
+ "START", GNUNET_i2s(&n->id), e->name);
+
+ e_ctx = GNUNET_malloc (sizeof (struct NodeComCtx));
+ e_ctx->n = n;
+ e_ctx->e = e;
+ e_ctx->size = sizeof (struct GED_start_message) + strlen (e->name) + 1;
+ e_ctx->notify = &node_experiment_start_cb;
+ e_ctx->notify_cls = e_ctx;
+
+ GNUNET_CONTAINER_DLL_insert_tail (n->e_req_head, n->e_req_tail, e_ctx);
+ schedule_transmisson (e_ctx);
+ return GNUNET_OK;
+}
+
+
+/**
+ * Start the nodes management
+ */
+void
+GED_nodes_start ()
+{
/* Connecting to core service to find partners */
- ch = GNUNET_CORE_connect (cfg, NULL,
+ ch = GNUNET_CORE_connect (GED_cfg, NULL,
&core_startup_handler,
&core_connect_handler,
&core_disconnect_handler,
}
+/**
+ * Stop the nodes management
+ */
void
-GNUNET_EXPERIMENTATION_nodes_stop ()
+GED_nodes_stop ()
{
- GNUNET_log (GNUNET_ERROR_TYPE_INFO, _("Experimentation daemon shutting down ...\n"));
if (NULL != ch)
{
GNUNET_CORE_disconnect (ch);
if (NULL != nodes_requested)
{
GNUNET_CONTAINER_multihashmap_iterate (nodes_requested,
- &cleanup_nodes,
+ &cleanup_node,
nodes_requested);
update_stats (nodes_requested);
GNUNET_CONTAINER_multihashmap_destroy (nodes_requested);
if (NULL != nodes_active)
{
GNUNET_CONTAINER_multihashmap_iterate (nodes_active,
- &cleanup_nodes,
+ &cleanup_node,
nodes_active);
update_stats (nodes_active);
GNUNET_CONTAINER_multihashmap_destroy (nodes_active);
if (NULL != nodes_inactive)
{
GNUNET_CONTAINER_multihashmap_iterate (nodes_inactive,
- &cleanup_nodes,
+ &cleanup_node,
nodes_inactive);
update_stats (nodes_inactive);
GNUNET_CONTAINER_multihashmap_destroy (nodes_inactive);
nodes_inactive = NULL;
}
-
- if (NULL != stats)
- {
- GNUNET_STATISTICS_destroy (stats, GNUNET_NO);
- stats = NULL;
- }
}
-/* end of gnunet-daemon-experimentation.c */
+/* end of gnunet-daemon-experimentation_nodes.c */
projects / oweals / gnunet.git / blobdiff