GNUnet  0.11.x
Data Structures | Typedefs | Functions | Variables
gnunet-service-testbed_links.h File Reference

TESTBED service components that deals with starting slave controllers and establishing lateral links between controllers. More...

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Data Structures

struct  Slave
 Structure representing a connected(directly-linked) controller. More...
 

Typedefs

typedef void(* GST_NeigbourConnectNotifyCallback) (void *cls, struct GNUNET_TESTBED_Controller *controller)
 The notification callback to call when we are connect to neighbour. More...
 

Functions

void GST_neighbour_list_clean (void)
 Cleans up the neighbour list. More...
 
struct NeighbourGST_get_neighbour (uint32_t id)
 Get a neighbour from the neighbour list. More...
 
void GST_free_nccq (void)
 Function to cleanup the neighbour connect contexts. More...
 
struct NeighbourConnectNotificationGST_neighbour_get_connection (struct Neighbour *n, GST_NeigbourConnectNotifyCallback cb, void *cb_cls)
 Try to open a connection to the given neigbour. More...
 
void GST_neighbour_get_connection_cancel (struct NeighbourConnectNotification *h)
 Cancel the request for opening a connection to the neighbour. More...
 
void GST_neighbour_release_connection (struct Neighbour *n)
 Release the connection to the neighbour. More...
 
struct NeighbourGST_create_neighbour (struct GNUNET_TESTBED_Host *host)
 Function to create a neigbour and add it into the neighbour list. More...
 
void handle_link_controllers (void *cls, const struct GNUNET_TESTBED_ControllerLinkRequest *msg)
 Message handler for #GNUNET_MESSAGE_TYPE_TESTBED_LCONTROLLERS message. More...
 
void GST_link_notify_disconnect (struct GNUNET_SERVICE_Client *client)
 Clean up client handle if we stored any via handle_link_controllers(), the given client disconnected. More...
 
void GST_slave_list_clear (void)
 Cleans up the slave list. More...
 

Variables

struct Slave ** GST_slave_list
 A list of directly linked neighbours. More...
 
unsigned int GST_slave_list_size
 The size of directly linked neighbours list. More...
 

Detailed Description

TESTBED service components that deals with starting slave controllers and establishing lateral links between controllers.

Author
Sree Harsha Totakura

Definition in file gnunet-service-testbed_links.h.

Typedef Documentation

◆ GST_NeigbourConnectNotifyCallback

typedef void(* GST_NeigbourConnectNotifyCallback) (void *cls, struct GNUNET_TESTBED_Controller *controller)

The notification callback to call when we are connect to neighbour.

Parameters
clsthe closure given to GST_neighbour_get_connection()
controllerthe controller handle to the neighbour

Definition at line 132 of file gnunet-service-testbed_links.h.

Function Documentation

◆ GST_neighbour_list_clean()

void GST_neighbour_list_clean ( void  )

Cleans up the neighbour list.

Definition at line 1093 of file gnunet-service-testbed_links.c.

References Neighbour::conn_op, GNUNET_free, GNUNET_free_non_null, GNUNET_TESTBED_operation_release_(), id, and neighbour_list_size.

Referenced by shutdown_task().

1094 {
1095  struct Neighbour *n;
1096  unsigned int id;
1097 
1098  for (id = 0; id < neighbour_list_size; id++)
1099  {
1100  if (NULL == (n = neighbour_list[id]))
1101  continue;
1102  if (NULL != n->conn_op)
1104  GNUNET_free (n);
1105  neighbour_list[id] = NULL;
1106  }
1108 }
A connected controller which is not our child.
void GNUNET_TESTBED_operation_release_(struct GNUNET_TESTBED_Operation *op)
An operation is &#39;done&#39; (was cancelled or finished); remove it from the queues and release associated ...
static struct GNUNET_IDENTITY_Handle * id
Handle to identity service.
#define GNUNET_free_non_null(ptr)
Free the memory pointed to by ptr if ptr is not NULL.
struct GNUNET_TESTBED_Operation * conn_op
Operation handle for opening a lateral connection to another controller.
#define GNUNET_free(ptr)
Wrapper around free.
Here is the call graph for this function:
Here is the caller graph for this function:

◆ GST_get_neighbour()

struct Neighbour* GST_get_neighbour ( uint32_t  id)

Get a neighbour from the neighbour list.

Parameters
idthe index of the neighbour in the neighbour list
Returns
the Neighbour; NULL if the given index in invalid (index greater than the list size or neighbour at that index is NULL)

Definition at line 1119 of file gnunet-service-testbed_links.c.

References id, and neighbour_list_size.

Referenced by handle_overlay_connect().

1120 {
1121  if (neighbour_list_size <= id)
1122  return NULL;
1123  return neighbour_list[id];
1124 }
static struct GNUNET_IDENTITY_Handle * id
Handle to identity service.
Here is the caller graph for this function:

◆ GST_free_nccq()

void GST_free_nccq ( void  )

Function to cleanup the neighbour connect contexts.

Definition at line 1131 of file gnunet-service-testbed_links.c.

References cleanup_ncc().

Referenced by shutdown_task().

1132 {
1133  while (NULL != ncc_head)
1135 }
Here is the call graph for this function:
Here is the caller graph for this function:

◆ GST_neighbour_get_connection()

struct NeighbourConnectNotification* GST_neighbour_get_connection ( struct Neighbour n,
GST_NeigbourConnectNotifyCallback  cb,
void *  cb_cls 
)

Try to open a connection to the given neigbour.

If the connection is open already, then it is re-used. If not, the request is queued in the operation queues responsible for bounding the total number of file descriptors. The actual connection will happen when the operation queue marks the corresponding operation as active.

Parameters
nthe neighbour to open a connection to
cbthe notification callback to call when the connection is opened
cb_clsthe closure for the above callback

Definition at line 985 of file gnunet-service-testbed_links.c.

References NeighbourConnectNotification::cb, NeighbourConnectNotification::cb_cls, Neighbour::conn_op, Neighbour::controller, GNUNET_assert, GNUNET_CONTAINER_DLL_insert_tail, GNUNET_new, GNUNET_TESTBED_operation_begin_wait_(), GNUNET_TESTBED_operation_create_(), GNUNET_TESTBED_operation_queue_insert_(), GST_opq_openfds, h, Neighbour::host_id, LOG_DEBUG, NeighbourConnectNotification::n, Neighbour::nl_head, Neighbour::nl_tail, oprelease_neighbour_conn(), opstart_neighbour_conn(), and trigger_notifications().

Referenced by handle_link_controllers(), and handle_overlay_connect().

988 {
990 
991  GNUNET_assert (NULL != cb);
992  LOG_DEBUG ("Attempting to get connection to controller on host %u\n",
993  n->host_id);
995  h->n = n;
996  h->cb = cb;
997  h->cb_cls = cb_cls;
999  if (NULL == n->conn_op)
1000  {
1001  GNUNET_assert (NULL == n->controller);
1006  return h;
1007  }
1009  return h;
1010 }
uint32_t host_id
The id of the host this controller is running on.
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
Notification context to be used to notify when connection to the neighbour&#39;s controller is opened...
struct GNUNET_TESTBED_Operation * GNUNET_TESTBED_operation_create_(void *cls, OperationStart start, OperationRelease release)
Create an &#39;operation&#39; to be performed.
#define GNUNET_new(type)
Allocate a struct or union of the given type.
void GNUNET_TESTBED_operation_queue_insert_(struct OperationQueue *queue, struct GNUNET_TESTBED_Operation *op)
Add an operation to a queue.
struct NeighbourConnectNotification * nl_tail
DLL tail for the list of notification requests.
struct OperationQueue * GST_opq_openfds
Operation queue for open file descriptors.
static struct GNUNET_ARM_Handle * h
Connection with ARM.
Definition: gnunet-arm.c:99
GST_NeigbourConnectNotifyCallback cb
The notification callback to call when we are connect to neighbour.
void * cb_cls
The closure for the above callback.
struct GNUNET_TESTBED_Controller * controller
The controller handle.
struct GNUNET_TESTBED_Operation * conn_op
Operation handle for opening a lateral connection to another controller.
struct Neighbour * n
The neighbour.
#define GNUNET_CONTAINER_DLL_insert_tail(head, tail, element)
Insert an element at the tail of a DLL.
void GNUNET_TESTBED_operation_begin_wait_(struct GNUNET_TESTBED_Operation *op)
Marks the given operation as waiting on the queues.
struct NeighbourConnectNotification * nl_head
DLL head for the list of notification requests.
#define LOG_DEBUG(...)
Debug logging shorthand.
Here is the call graph for this function:
Here is the caller graph for this function:

◆ GST_neighbour_get_connection_cancel()

void GST_neighbour_get_connection_cancel ( struct NeighbourConnectNotification h)

Cancel the request for opening a connection to the neighbour.

Parameters
hthe notification handle

Definition at line 1019 of file gnunet-service-testbed_links.c.

References cleanup_task, Neighbour::conn_op, GNUNET_assert, GNUNET_CONTAINER_DLL_remove, GNUNET_free, GNUNET_NO, GNUNET_SCHEDULER_cancel(), GNUNET_TESTBED_operation_inactivate_(), GNUNET_YES, Neighbour::inactive, NeighbourConnectNotification::n, Neighbour::nl_head, Neighbour::nl_tail, Neighbour::notify_task, Neighbour::reference_cnt, and trigger_notifications().

Referenced by cleanup_ncc(), and cleanup_occ_rp2c().

1020 {
1021  struct Neighbour *n;
1022  int cleanup_task;
1023 
1024  n = h->n;
1025  cleanup_task = (h == n->nl_head) ? GNUNET_YES : GNUNET_NO;
1027  GNUNET_free (h);
1028  if (GNUNET_NO == cleanup_task)
1029  return;
1030  if (NULL == n->notify_task)
1031  return;
1032  GNUNET_assert (0 < n->reference_cnt);
1033  n->reference_cnt--;
1035  n->notify_task = NULL;
1036  if (NULL == n->nl_head)
1037  {
1038  if ((0 == n->reference_cnt) && (0 == n->inactive))
1039  {
1040  n->inactive = 1;
1042  }
1043  return;
1044  }
1046 }
#define GNUNET_CONTAINER_DLL_remove(head, tail, element)
Remove an element from a DLL.
A connected controller which is not our child.
unsigned int inactive
Is the conn_op inactivated?
static struct GNUNET_SCHEDULER_Task * cleanup_task
Cleanup task.
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
#define GNUNET_NO
Definition: gnunet_common.h:78
struct NeighbourConnectNotification * nl_tail
DLL tail for the list of notification requests.
struct GNUNET_TESTBED_Operation * conn_op
Operation handle for opening a lateral connection to another controller.
struct Neighbour * n
The neighbour.
unsigned int reference_cnt
How many references are present currently to this neighbour&#39;s connection.
struct NeighbourConnectNotification * nl_head
DLL head for the list of notification requests.
#define GNUNET_YES
Definition: gnunet_common.h:77
void GNUNET_TESTBED_operation_inactivate_(struct GNUNET_TESTBED_Operation *op)
Marks an active operation as inactive - the operation will be kept in a ready-to-be-released state an...
#define GNUNET_free(ptr)
Wrapper around free.
struct GNUNET_SCHEDULER_Task * notify_task
Task id for the task to call notifications from the notification list.
void * GNUNET_SCHEDULER_cancel(struct GNUNET_SCHEDULER_Task *task)
Cancel the task with the specified identifier.
Definition: scheduler.c:966
Here is the call graph for this function:
Here is the caller graph for this function:

◆ GST_neighbour_release_connection()

void GST_neighbour_release_connection ( struct Neighbour n)

Release the connection to the neighbour.

The actual connection will be closed if connections to other neighbour are waiting (to maintain a bound on the total number of connections that are open).

Parameters
nthe neighbour whose connection can be closed

Definition at line 1057 of file gnunet-service-testbed_links.c.

References Neighbour::conn_op, GNUNET_assert, GNUNET_TESTBED_operation_inactivate_(), Neighbour::inactive, and Neighbour::reference_cnt.

Referenced by cleanup_occ_rp2c(), and neighbour_connect_cb().

1058 {
1059  GNUNET_assert (0 == n->inactive);
1060  GNUNET_assert (0 < n->reference_cnt);
1061  n->reference_cnt--;
1062  if (0 == n->reference_cnt)
1063  {
1064  n->inactive = 1;
1066  }
1067 }
unsigned int inactive
Is the conn_op inactivated?
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
struct GNUNET_TESTBED_Operation * conn_op
Operation handle for opening a lateral connection to another controller.
unsigned int reference_cnt
How many references are present currently to this neighbour&#39;s connection.
void GNUNET_TESTBED_operation_inactivate_(struct GNUNET_TESTBED_Operation *op)
Marks an active operation as inactive - the operation will be kept in a ready-to-be-released state an...
Here is the call graph for this function:
Here is the caller graph for this function:

◆ GST_create_neighbour()

struct Neighbour* GST_create_neighbour ( struct GNUNET_TESTBED_Host host)

Function to create a neigbour and add it into the neighbour list.

Parameters
hostthe host of the neighbour

Definition at line 1187 of file gnunet-service-testbed_links.c.

References GNUNET_new, GNUNET_TESTBED_host_get_id_(), Neighbour::host_id, and neighbour_list_add().

Referenced by handle_link_controllers(), and handle_overlay_connect().

1188 {
1189  struct Neighbour *n;
1190 
1191  n = GNUNET_new (struct Neighbour);
1193  neighbour_list_add (n); /* just add; connect on-demand */
1194  return n;
1195 }
A connected controller which is not our child.
uint32_t host_id
The id of the host this controller is running on.
#define GNUNET_new(type)
Allocate a struct or union of the given type.
uint32_t GNUNET_TESTBED_host_get_id_(const struct GNUNET_TESTBED_Host *host)
Obtain the host&#39;s unique global ID.
Here is the call graph for this function:
Here is the caller graph for this function:

◆ handle_link_controllers()

void handle_link_controllers ( void *  cls,
const struct GNUNET_TESTBED_ControllerLinkRequest msg 
)

Message handler for #GNUNET_MESSAGE_TYPE_TESTBED_LCONTROLLERS message.

Parameters
clsidentification of the client
msgthe actual message

Definition at line 1205 of file gnunet-service-testbed_links.c.

References LCFContext::client, LinkControllersContext::client, NeighbourConnectCtxt::client, Slave::controller_proc, LCFContext::delegated_host_id, GNUNET_TESTBED_ControllerLinkRequest::delegated_host_id, Route::dest, LCFContext::gateway, GNUNET_assert, GNUNET_break, GNUNET_break_op, GNUNET_CONTAINER_DLL_insert_tail, GNUNET_CONTAINER_multihashmap_create(), GNUNET_ERROR_TYPE_WARNING, GNUNET_new, GNUNET_NO, GNUNET_ntohll(), GNUNET_SCHEDULER_add_delayed(), GNUNET_SCHEDULER_add_now(), GNUNET_SERVICE_client_continue(), GNUNET_SERVICE_client_drop(), GNUNET_TESTBED_controller_start(), GST_context, GST_create_neighbour(), GST_find_dest_route(), GST_host_list, GST_host_list_size, GST_neighbour_get_connection(), GST_slave_list_size, GST_timeout, Slave::host_id, Context::host_id, INIT, LCFContext::is_subordinate, GNUNET_TESTBED_ControllerLinkRequest::is_subordinate, Slave::lcc, lcf_proc_task(), LOG, LOG_DEBUG, Context::master_ip, NeighbourConnectCtxt::n, neighbour_connect_cb(), neighbour_list_size, NeighbourConnectCtxt::nh, NeighbourConnectCtxt::op_id, LCFContext::operation_id, GNUNET_TESTBED_ControllerLinkRequest::operation_id, LinkControllersContext::operation_id, Slave::reghost_map, route_list_add(), route_list_size, LCFContext::slave_host_id, GNUNET_TESTBED_ControllerLinkRequest::slave_host_id, slave_list_add(), slave_status_cb(), LCFContext::state, Route::thru, timeout_neighbour_connect(), and NeighbourConnectCtxt::timeout_task.

1207 {
1208  struct GNUNET_SERVICE_Client *client = cls;
1209  struct LCFContext *lcf;
1210  struct Route *route;
1211  struct Route *new_route;
1212  uint64_t op_id;
1213  uint32_t delegated_host_id;
1214  uint32_t slave_host_id;
1215 
1216  if (NULL == GST_context)
1217  {
1218  GNUNET_break (0);
1219  GNUNET_SERVICE_client_drop (client);
1220  return;
1221  }
1222  delegated_host_id = ntohl (msg->delegated_host_id);
1223  if (delegated_host_id == GST_context->host_id)
1224  {
1225  GNUNET_break (0);
1227  "Trying to link ourselves\n");
1228  GNUNET_SERVICE_client_drop (client);
1229  return;
1230  }
1231  if ((delegated_host_id >= GST_host_list_size) ||
1232  (NULL == GST_host_list[delegated_host_id]))
1233  {
1235  "Delegated host %u not registered with us\n",
1236  delegated_host_id);
1237  GNUNET_SERVICE_client_drop (client);
1238  return;
1239  }
1240  slave_host_id = ntohl (msg->slave_host_id);
1241  if ((slave_host_id >= GST_host_list_size) ||
1242  (NULL == GST_host_list[slave_host_id]))
1243  {
1245  "Slave host %u not registered with us\n",
1246  slave_host_id);
1247  GNUNET_SERVICE_client_drop (client);
1248  return;
1249  }
1250  if (slave_host_id == delegated_host_id)
1251  {
1253  "Slave and delegated host are same\n");
1254  GNUNET_SERVICE_client_drop (client);
1255  return;
1256  }
1257  op_id = GNUNET_ntohll (msg->operation_id);
1258  if (slave_host_id == GST_context->host_id) /* Link from us */
1259  {
1260  struct Slave *slave;
1261  struct LinkControllersContext *lcc;
1262 
1263  if (1 != msg->is_subordinate)
1264  {
1265  struct Neighbour *n;
1266  struct NeighbourConnectCtxt *ncc;
1267 
1268  if ((delegated_host_id < neighbour_list_size) &&
1269  (NULL != neighbour_list[delegated_host_id]))
1270  {
1271  GNUNET_break (0);
1272  GNUNET_SERVICE_client_drop (client);
1273  return;
1274  }
1275  LOG_DEBUG ("Received request to establish a link to host %u\n",
1276  delegated_host_id);
1277  n = GST_create_neighbour (GST_host_list[delegated_host_id]);
1278  ncc = GNUNET_new (struct NeighbourConnectCtxt);
1279  ncc->n = n;
1280  ncc->op_id = op_id;
1281  ncc->client = client;
1282  ncc->nh = GST_neighbour_get_connection (n,
1284  ncc);
1285  ncc->timeout_task
1288  ncc);
1290  ncc_tail,
1291  ncc);
1293  return;
1294  }
1295  if ((delegated_host_id < GST_slave_list_size) &&
1296  (NULL != GST_slave_list[delegated_host_id]))
1297  {
1298  GNUNET_break (0);
1299  GNUNET_SERVICE_client_drop (client);
1300  return;
1301  }
1302  LOG_DEBUG ("Received request to start and establish a link to host %u\n",
1303  delegated_host_id);
1304  slave = GNUNET_new (struct Slave);
1305  slave->host_id = delegated_host_id;
1307  GNUNET_NO);
1308  slave_list_add (slave);
1309  lcc = GNUNET_new (struct LinkControllersContext);
1310  lcc->operation_id = op_id;
1311  lcc->client = client;
1312  slave->lcc = lcc;
1313  slave->controller_proc
1315  GST_host_list[slave->host_id],
1316  &slave_status_cb,
1317  slave);
1318  new_route = GNUNET_new (struct Route);
1319  new_route->dest = delegated_host_id;
1320  new_route->thru = GST_context->host_id;
1321  route_list_add (new_route);
1322  return;
1323  }
1324 
1325  /* Route the request */
1326  if (slave_host_id >= route_list_size)
1327  {
1329  "No route towards slave host");
1330  GNUNET_SERVICE_client_drop (client);
1331  return;
1332  }
1333  lcf = GNUNET_new (struct LCFContext);
1334  lcf->delegated_host_id = delegated_host_id;
1335  lcf->slave_host_id = slave_host_id;
1336  route = GST_find_dest_route (slave_host_id);
1337  GNUNET_assert (NULL != route); /* because we add routes carefully */
1339  GNUNET_assert (NULL != GST_slave_list[route->dest]);
1340  lcf->is_subordinate = msg->is_subordinate;
1341  lcf->state = INIT;
1342  lcf->operation_id = op_id;
1343  lcf->gateway = GST_slave_list[route->dest];
1344  lcf->client = client;
1345  if (NULL == lcf_head)
1346  {
1347  GNUNET_assert (NULL == lcf_proc_task_id);
1349  lcf_tail,
1350  lcf);
1352  lcf);
1353  }
1354  else
1355  {
1357  lcf_tail,
1358  lcf);
1359  }
1360  /* FIXME: Adding a new route should happen after the controllers are linked
1361  * successfully */
1362  if (1 != msg->is_subordinate)
1363  {
1365  return;
1366  }
1367  if ((delegated_host_id < route_list_size) &&
1368  (NULL != route_list[delegated_host_id]))
1369  {
1370  GNUNET_break_op (0); /* Are you trying to link delegated host twice
1371  * with is subordinate flag set to GNUNET_YES? */
1372  GNUNET_SERVICE_client_drop (client);
1373  return;
1374  }
1375  new_route = GNUNET_new (struct Route);
1376  new_route->dest = delegated_host_id;
1377  new_route->thru = route->dest;
1378  route_list_add (new_route);
1380 }
struct GNUNET_CONTAINER_MultiHashMap * reghost_map
Hashmap to hold Registered host contexts.
struct GNUNET_SCHEDULER_Task * timeout_task
Task to be run upon timeout.
A connected controller which is not our child.
uint64_t operation_id
The id of the operation which created this context.
Context information for establishing a link to neighbour (Used is GST_handle_link_controllers() ...
unsigned int GST_host_list_size
The size of the host list.
struct Neighbour * n
The neighbour to whom connection should be made.
Link controllers request forwarding context.
uint32_t thru
The destination host is reachable thru.
struct NeighbourConnectNotification * nh
The notification handle associated with the neighbour&#39;s connection request.
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
char * master_ip
The network address of the master controller.
int is_subordinate
should the slave controller start the delegated controller?
#define GNUNET_NO
Definition: gnunet_common.h:78
#define GNUNET_new(type)
Allocate a struct or union of the given type.
Structure representing a connected(directly-linked) controller.
enum LCFContextState state
The state of this context.
Context information used while linking controllers.
#define GNUNET_break(cond)
Use this for internal assertion violations that are not fatal (can be handled) but should not occur...
struct Slave * gateway
The gateway which will pass the link message to delegated host.
Handle to a client that is connected to a service.
Definition: service.c:250
uint32_t delegated_host_id
For which host should requests be delegated? NBO.
Definition: testbed.h:146
struct GNUNET_SCHEDULER_Task * GNUNET_SCHEDULER_add_delayed(struct GNUNET_TIME_Relative delay, GNUNET_SCHEDULER_TaskCallback task, void *task_cls)
Schedule a new task to be run with a specified delay.
Definition: scheduler.c:1253
uint32_t host_id
Our host id according to this context.
struct GNUNET_SERVICE_Client * client
The client which has asked to perform this operation.
#define GNUNET_break_op(cond)
Use this for assertion violations caused by other peers (i.e.
struct GNUNET_SCHEDULER_Task * GNUNET_SCHEDULER_add_now(GNUNET_SCHEDULER_TaskCallback task, void *task_cls)
Schedule a new task to be run as soon as possible.
Definition: scheduler.c:1280
struct GNUNET_TESTBED_Host ** GST_host_list
Array of hosts.
A routing entry.
uint32_t delegated_host_id
The delegated host.
void GNUNET_SERVICE_client_drop(struct GNUNET_SERVICE_Client *c)
Ask the server to disconnect from the given client.
Definition: service.c:2324
struct GNUNET_TESTBED_ControllerProc * controller_proc
The controller process handle if we had started the controller.
uint64_t operation_id
The ID of the operation.
uint32_t slave_host_id
The slave host.
#define GNUNET_CONTAINER_DLL_insert_tail(head, tail, element)
Insert an element at the tail of a DLL.
struct LinkControllersContext * lcc
handle to lcc which is associated with this slave startup.
uint64_t op_id
The id of the link-controllers operation responsible for creating this context.
struct GNUNET_TIME_Relative GST_timeout
Timeout for operations which may take some time.
uint32_t slave_host_id
Which host is responsible for managing the delegation? NBO.
Definition: testbed.h:156
uint32_t host_id
The id of the host this controller is running on.
struct Context * GST_context
The master context; generated with the first INIT message.
struct GNUNET_SERVICE_Client * client
The client requesting the connection.
uint8_t is_subordinate
Set to 1 if the receiving controller is the master controller for the slave host (and thus responsibl...
Definition: testbed.h:162
struct GNUNET_CONTAINER_MultiHashMap * GNUNET_CONTAINER_multihashmap_create(unsigned int len, int do_not_copy_keys)
Create a multi hash map.
uint64_t operation_id
The id of the operation which created this message.
Definition: testbed.h:151
void GNUNET_SERVICE_client_continue(struct GNUNET_SERVICE_Client *c)
Continue receiving further messages from the given client.
Definition: service.c:2243
uint32_t dest
destination host
#define LOG_DEBUG(...)
Debug logging shorthand.
struct GNUNET_TESTBED_ControllerProc * GNUNET_TESTBED_controller_start(const char *trusted_ip, struct GNUNET_TESTBED_Host *host, GNUNET_TESTBED_ControllerStatusCallback cb, void *cls)
Starts a controller process at the given host.
uint64_t GNUNET_ntohll(uint64_t n)
Convert unsigned 64-bit integer to host byte order.
Definition: common_endian.c:48
struct GNUNET_SERVICE_Client * client
The client which initiated the link controller operation.
Here is the call graph for this function:

◆ GST_link_notify_disconnect()

void GST_link_notify_disconnect ( struct GNUNET_SERVICE_Client client)

Clean up client handle if we stored any via handle_link_controllers(), the given client disconnected.

Parameters
clientthe client that is history

Definition at line 1390 of file gnunet-service-testbed_links.c.

References cleanup_ncc(), LCFContext::client, LinkControllersContext::client, NeighbourConnectCtxt::client, drop_client_entries(), GNUNET_CONTAINER_DLL_remove, GNUNET_CONTAINER_multihashmap_iterate(), GNUNET_free, GNUNET_TESTBED_operation_done(), GST_slave_list_size, Slave::lcc, LCFContext::next, NeighbourConnectCtxt::next, LCFContext::op, and Slave::reghost_map.

Referenced by client_disconnect_cb().

1391 {
1392  struct NeighbourConnectCtxt *ncc;
1393  struct NeighbourConnectCtxt *nccn;
1394  struct LCFContext *lcf;
1395  struct LCFContext *lcfn;
1396 
1397  for (ncc = ncc_head; NULL != ncc; ncc = nccn)
1398  {
1399  nccn = ncc->next;
1400  if (ncc->client == client)
1401  cleanup_ncc (ncc);
1402  }
1403  for (unsigned int i = 0; i < GST_slave_list_size; i++)
1404  {
1405  struct Slave *slave = GST_slave_list[i];
1406  struct LinkControllersContext *lcc;
1407 
1408  if (NULL == slave)
1409  continue;
1412  client);
1413  lcc = slave->lcc;
1414  if (NULL == lcc)
1415  continue;
1416  if (lcc->client == client)
1417  {
1418  slave->lcc = NULL;
1419  GNUNET_free (lcc);
1420  }
1421  }
1422  for (lcf = lcf_head; NULL != lcf; lcf = lcfn)
1423  {
1424  lcfn = lcf->next;
1425  if ((NULL != lcf) &&
1426  (client == lcf->client))
1427  {
1428  if (NULL != lcf->op)
1431  lcf_tail,
1432  lcf);
1433  GNUNET_free (lcf);
1434  }
1435  }
1436 }
#define GNUNET_CONTAINER_DLL_remove(head, tail, element)
Remove an element from a DLL.
struct GNUNET_CONTAINER_MultiHashMap * reghost_map
Hashmap to hold Registered host contexts.
Context information for establishing a link to neighbour (Used is GST_handle_link_controllers() ...
Link controllers request forwarding context.
struct GNUNET_TESTBED_Operation * op
Handle for operations which are forwarded while linking controllers.
Structure representing a connected(directly-linked) controller.
Context information used while linking controllers.
struct GNUNET_SERVICE_Client * client
The client which has asked to perform this operation.
void GNUNET_TESTBED_operation_done(struct GNUNET_TESTBED_Operation *operation)
This function is used to signal that the event information (struct GNUNET_TESTBED_EventInformation) f...
Definition: testbed_api.c:2044
struct LinkControllersContext * lcc
handle to lcc which is associated with this slave startup.
struct NeighbourConnectCtxt * next
DLL next for inclusion in the corresponding context list.
struct GNUNET_SERVICE_Client * client
The client requesting the connection.
int GNUNET_CONTAINER_multihashmap_iterate(struct GNUNET_CONTAINER_MultiHashMap *map, GNUNET_CONTAINER_MulitHashMapIteratorCallback it, void *it_cls)
Iterate over all entries in the map.
struct LCFContext * next
The LCFContext.
#define GNUNET_free(ptr)
Wrapper around free.
struct GNUNET_SERVICE_Client * client
The client which initiated the link controller operation.
Here is the call graph for this function:
Here is the caller graph for this function:

◆ GST_slave_list_clear()

void GST_slave_list_clear ( void  )

Cleans up the slave list.

Definition at line 492 of file gnunet-service-testbed_links.c.

References destroy_slave(), GNUNET_free_non_null, GST_slave_list_size, id, and kill_slave().

Referenced by shutdown_task().

493 {
494  struct Slave *slave;
495  unsigned int id;
496 
497  for (id = 0; id < GST_slave_list_size; id++)
498  {
499  slave = GST_slave_list[id];
500  if (NULL == slave)
501  continue;
502  kill_slave (slave);
503  }
504  for (id = 0; id < GST_slave_list_size; id++)
505  {
506  slave = GST_slave_list[id];
507  if (NULL == slave)
508  continue;
509  destroy_slave (slave);
510  }
512  GST_slave_list = NULL;
513 }
static struct GNUNET_IDENTITY_Handle * id
Handle to identity service.
#define GNUNET_free_non_null(ptr)
Free the memory pointed to by ptr if ptr is not NULL.
Structure representing a connected(directly-linked) controller.
Here is the call graph for this function:
Here is the caller graph for this function:

Variable Documentation

◆ GST_slave_list

struct Slave** GST_slave_list

A list of directly linked neighbours.

Definition at line 282 of file gnunet-service-testbed_links.c.

Referenced by handle_barrier_init(), handle_peer_create(), handle_shutdown_peers(), and handle_slave_get_config().

◆ GST_slave_list_size

unsigned int GST_slave_list_size