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22 * @file testbed/testbed_api.h
23 * @brief Interface for functions internally exported from testbed_api.c
24 * @author Sree Harsha Totakura
30 #include "gnunet_util_lib.h"
31 #include "gnunet_testbed_service.h"
33 #include "testbed_helper.h"
36 * Testbed Helper binary name
38 #define HELPER_TESTBED_BINARY "gnunet-helper-testbed"
42 * Enumeration of operations
47 * Peer create operation
52 * Peer start operation
62 * Peer destroy operation
67 * Get peer information operation
77 * Overlay connection operation
87 * Link controllers operation
92 * Get slave config operation
97 * Stop and destroy all peers
102 * Start/stop service at a peer
110 * Enumeration of states of OperationContext
112 enum OperationContextState
115 * The initial state where the associated operation has just been created
116 * and is waiting in the operation queues to be started
121 * The operation has been started. It may occupy some resources which are to
122 * be freed if cancelled.
127 * The operation has finished. The end results of this operation may occupy
128 * some resources which are to be freed by operation_done
135 * Context information for GNUNET_TESTBED_Operation
137 struct OperationContext
140 * The controller to which this operation context belongs to
142 struct GNUNET_TESTBED_Controller *c;
147 struct GNUNET_TESTBED_Operation *op;
150 * The operation closure
155 * Data relevant to the operation
160 * The id of the opearation
165 * The type of operation
167 enum OperationType type;
170 * The state of the operation
172 enum OperationContextState state;
177 * Operation empty callback
182 (*TESTBED_opcq_empty_cb) (void *cls);
186 * Handle to interact with a GNUnet testbed controller. Each
187 * controller has at least one master handle which is created when the
188 * controller is created; this master handle interacts with the
189 * controller process, destroying it destroys the controller (by
190 * closing stdin of the controller process). Additionally,
191 * controllers can interact with each other (in a P2P fashion); those
192 * links are established via TCP/IP on the controller's service port.
194 struct GNUNET_TESTBED_Controller
197 * The host where the controller is running
199 struct GNUNET_TESTBED_Host *host;
202 * The controller callback
204 GNUNET_TESTBED_ControllerCallback cc;
207 * The closure for controller callback
212 * The configuration to use while connecting to controller
214 struct GNUNET_CONFIGURATION_Handle *cfg;
217 * The message queue to the controller service
219 struct GNUNET_MQ_Handle *mq;
222 * The host registration handle; NULL if no current registration requests are
225 struct GNUNET_TESTBED_HostRegistrationHandle *rh;
228 * The map of active operation contexts
230 struct GNUNET_CONTAINER_MultiHashMap32 *opc_map;
233 * If this callback is not NULL, schedule it as a task when opc_map gets empty
235 TESTBED_opcq_empty_cb opcq_empty_cb;
238 * Closure for the above task
240 void *opcq_empty_cls;
243 * Operation queue for simultaneous operations
245 struct OperationQueue *opq_parallel_operations;
248 * Operation queue for simultaneous service connections
250 struct OperationQueue *opq_parallel_service_connections;
253 * Operation queue for simultaneous topology configuration operations
255 struct OperationQueue *opq_parallel_topology_config_operations;
258 * handle for hashtable of barrier handles, values are
259 * of type `struct GNUNET_TESTBED_Barrier`.
261 struct GNUNET_CONTAINER_MultiHashMap *barrier_map;
264 * The controller event mask
269 * The operation id counter. use current value and increment
271 uint32_t operation_counter;
278 struct GNUNET_TESTBED_Barrier
281 * hashcode identifying this barrier in the hashmap
283 struct GNUNET_HashCode key;
286 * The controller handle given while initiliasing this barrier
288 struct GNUNET_TESTBED_Controller *c;
291 * The name of the barrier
296 * The continuation callback to call when we have a status update on this
298 GNUNET_TESTBED_barrier_status_cb cb;
301 * the closure for the above callback
306 * Should the barrier crossed status message be echoed back to the controller?
314 * Queues a message in send queue for sending to the service
316 * @param controller the handle to the controller
317 * @param msg the message to queue
321 GNUNET_TESTBED_queue_message_ (struct GNUNET_TESTBED_Controller *controller,
322 struct GNUNET_MessageHeader *msg);
326 * Inserts the given operation context into the operation context map of the
327 * given controller. Creates the operation context map if one does not exist
330 * @param c the controller
331 * @param opc the operation context to be inserted
334 GNUNET_TESTBED_insert_opc_ (struct GNUNET_TESTBED_Controller *c,
335 struct OperationContext *opc);
339 * Removes the given operation context from the operation context map of the
342 * @param c the controller
343 * @param opc the operation context to remove
346 GNUNET_TESTBED_remove_opc_ (const struct GNUNET_TESTBED_Controller *c,
347 struct OperationContext *opc);
351 * Compresses given configuration using zlib compress
353 * @param config the serialized configuration
354 * @param size the size of config
355 * @param xconfig will be set to the compressed configuration (memory is fresly
357 * @return the size of the xconfig
360 GNUNET_TESTBED_compress_config_ (const char *config,
366 * Function to serialize and compress using zlib a configuration through a
367 * configuration handle
369 * @param cfg the configuration
370 * @param size the size of configuration when serialize. Will be set on success.
371 * @param xsize the sizeo of the compressed configuration. Will be set on success.
372 * @return the serialized and compressed configuration
375 GNUNET_TESTBED_compress_cfg_ (const struct GNUNET_CONFIGURATION_Handle *cfg,
381 * Creates a helper initialization message. This function is here because we
382 * want to use this in testing
384 * @param trusted_ip the ip address of the controller which will be set as TRUSTED
385 * HOST(all connections form this ip are permitted by the testbed) when
386 * starting testbed controller at host. This can either be a single ip
387 * address or a network address in CIDR notation.
388 * @param hostname the hostname of the destination this message is intended for
389 * @param cfg the configuration that has to used to start the testbed service
391 * @return the initialization message
393 struct GNUNET_TESTBED_HelperInit *
394 GNUNET_TESTBED_create_helper_init_msg_ (const char *cname,
395 const char *hostname,
397 GNUNET_CONFIGURATION_Handle *cfg);
401 * Sends the given message as an operation. The given callback is called when a
402 * reply for the operation is available. Call
403 * GNUNET_TESTBED_forward_operation_msg_cancel_() to cleanup the returned
404 * operation context if the cc hasn't been called
406 * @param controller the controller to which the message has to be sent
407 * @param operation_id the operation id of the message
408 * @param msg the message to send
409 * @param cc the callback to call when reply is available
410 * @param cc_cls the closure for the above callback
411 * @return the operation context which can be used to cancel the forwarded
414 struct OperationContext *
415 GNUNET_TESTBED_forward_operation_msg_ (struct
416 GNUNET_TESTBED_Controller *controller,
417 uint64_t operation_id,
418 const struct GNUNET_MessageHeader *msg,
419 GNUNET_MQ_MessageCallback cc,
423 * Function to cancel an operation created by simply forwarding an operation
426 * @param opc the operation context from GNUNET_TESTBED_forward_operation_msg_()
429 GNUNET_TESTBED_forward_operation_msg_cancel_ (struct OperationContext *opc);
433 * Generates configuration by uncompressing configuration in given message. The
434 * given message should be of the following types:
435 * #GNUNET_MESSAGE_TYPE_TESTBED_PEERCONFIG,
436 * #GNUNET_MESSAGE_TYPE_TESTBED_SLAVECONFIG
438 * @param msg the message containing compressed configuration
439 * @return handle to the parsed configuration
441 struct GNUNET_CONFIGURATION_Handle *
442 GNUNET_TESTBED_extract_config_ (const struct GNUNET_MessageHeader *msg);
446 * Checks the integrity of the OpeationFailureEventMessage and if good returns
447 * the error message it contains.
449 * @param msg the OperationFailureEventMessage
450 * @return the error message
453 GNUNET_TESTBED_parse_error_string_ (const struct
454 GNUNET_TESTBED_OperationFailureEventMessage
459 * Function to return the operation id for a controller. The operation id is
460 * created from the controllers host id and its internal operation counter.
462 * @param controller the handle to the controller whose operation id has to be incremented
463 * @return the incremented operation id.
466 GNUNET_TESTBED_get_next_op_id (struct GNUNET_TESTBED_Controller *controller);
470 * Like GNUNET_TESTBED_get_slave_config(), however without the host registration
471 * check. Another difference is that this function takes the id of the slave
474 * @param op_cls the closure for the operation
475 * @param master the handle to master controller
476 * @param slave_host_id id of the host where the slave controller is running to
477 * the slave_host should remain valid until this operation is cancelled
478 * or marked as finished
479 * @return the operation handle;
481 struct GNUNET_TESTBED_Operation *
482 GNUNET_TESTBED_get_slave_config_ (void *op_cls,
483 struct GNUNET_TESTBED_Controller *master,
484 uint32_t slave_host_id);
489 * Initialise a barrier and call the given callback when the required percentage
490 * of peers (quorum) reach the barrier OR upon error.
492 * @param controller the handle to the controller
493 * @param name identification name of the barrier
494 * @param quorum the percentage of peers that is required to reach the barrier.
495 * Peers signal reaching a barrier by calling
496 * GNUNET_TESTBED_barrier_reached().
497 * @param cb the callback to call when the barrier is reached or upon error.
499 * @param cls closure for the above callback
500 * @param echo #GNUNET_YES to echo the barrier crossed status message back to the
502 * @return barrier handle; NULL upon error
504 struct GNUNET_TESTBED_Barrier *
505 GNUNET_TESTBED_barrier_init_ (struct GNUNET_TESTBED_Controller *controller,
508 GNUNET_TESTBED_barrier_status_cb cb,
514 * Remove a barrier and it was the last one in the barrier hash map, destroy the
517 * @param barrier the barrier to remove
520 GNUNET_TESTBED_barrier_remove_ (struct GNUNET_TESTBED_Barrier *barrier);
525 /* end of testbed_api.h */