/*
This file is part of GNUnet
- (C) 2012 Christian Grothoff (and other contributing authors)
+ (C) 2008--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
#ifndef TESTBED_API_H
#define TESTBED_API_H
+#include "gnunet_util_lib.h"
+#include "gnunet_testbed_service.h"
+#include "testbed.h"
+#include "testbed_helper.h"
+
+/**
+ * Testbed Helper binary name
+ */
+#define HELPER_TESTBED_BINARY "gnunet-helper-testbed"
+
/**
* Enumeration of operations
*/
enum OperationType
- {
+{
+ /**
+ * Peer create operation
+ */
+ OP_PEER_CREATE,
+
/**
* Peer start operation
*/
- OP_PEER_START,
+ OP_PEER_START,
+
+ /**
+ * Peer stop operation
+ */
+ OP_PEER_STOP,
/**
* Peer destroy operation
*/
- OP_PEER_DESTROY
- };
+ OP_PEER_DESTROY,
+
+ /**
+ * Get peer information operation
+ */
+ OP_PEER_INFO,
+
+ /**
+ * Reconfigure a peer
+ */
+ OP_PEER_RECONFIGURE,
+
+ /**
+ * Overlay connection operation
+ */
+ OP_OVERLAY_CONNECT,
+
+ /**
+ * Forwarded operation
+ */
+ OP_FORWARDED,
+
+ /**
+ * Link controllers operation
+ */
+ OP_LINK_CONTROLLERS,
+
+ /**
+ * Get slave config operation
+ */
+ OP_GET_SLAVE_CONFIG,
+
+ /**
+ * Stop and destroy all peers
+ */
+ OP_SHUTDOWN_PEERS,
+
+ /**
+ * Start/stop service at a peer
+ */
+ OP_MANAGE_SERVICE
+};
+
+
+/**
+ * The message queue for sending messages to the controller service
+ */
+struct MessageQueue;
+
+
+/**
+ * Enumeration of states of OperationContext
+ */
+enum OperationContextState
+{
+ /**
+ * The initial state where the associated operation has just been created
+ * and is waiting in the operation queues to be started
+ */
+ OPC_STATE_INIT = 0,
+
+ /**
+ * The operation has been started. It may occupy some resources which are to
+ * be freed if cancelled.
+ */
+ OPC_STATE_STARTED,
+
+ /**
+ * The operation has finished. The end results of this operation may occupy
+ * some resources which are to be freed by operation_done
+ */
+ OPC_STATE_FINISHED
+};
/**
- * Testbed operation structure
+ * Context information for GNUNET_TESTBED_Operation
*/
-struct GNUNET_TESTBED_Operation
+struct OperationContext
{
/**
- * next pointer for DLL
+ * The controller to which this operation context belongs to
*/
- struct GNUNET_TESTBED_Operation *next;
+ struct GNUNET_TESTBED_Controller *c;
/**
- * prev pointer for DLL
+ * The operation
*/
- struct GNUNET_TESTBED_Operation *prev;
+ struct GNUNET_TESTBED_Operation *op;
/**
- * The ID for the operation;
+ * The operation closure
*/
- uint64_t operation_id;
+ void *op_cls;
+
+ /**
+ * Data relevant to the operation
+ */
+ void *data;
+
+ /**
+ * The id of the opearation
+ */
+ uint64_t id;
/**
* The type of operation
enum OperationType type;
/**
- * Data specific to OperationType
+ * The state of the operation
*/
- void *data;
+ enum OperationContextState state;
};
/**
- * The message queue for sending messages to the controller service
- */
-struct MessageQueue;
-
-
-/**
- * Structure for a controller link
+ * Operation empty callback
+ *
+ * @param cls closure
*/
-struct ControllerLink;
+typedef void (*TESTBED_opcq_empty_cb) (void *cls);
/**
*/
struct GNUNET_TESTBED_Controller
{
-
/**
* The host where the controller is running
*/
* The client connection handle to the controller service
*/
struct GNUNET_CLIENT_Connection *client;
-
+
/**
* The head of the message queue
*/
struct MessageQueue *mq_tail;
/**
- * The head of the ControllerLink list
+ * The client transmit handle
*/
- struct ControllerLink *cl_head;
+ struct GNUNET_CLIENT_TransmitHandle *th;
/**
- * The tail of the ControllerLink list
+ * The host registration handle; NULL if no current registration requests are
+ * present
*/
- struct ControllerLink *cl_tail;
+ struct GNUNET_TESTBED_HostRegistrationHandle *rh;
/**
- * The client transmit handle
+ * The map of active operation contexts
*/
- struct GNUNET_CLIENT_TransmitHandle *th;
+ struct GNUNET_CONTAINER_MultiHashMap32 *opc_map;
/**
- * The host registration handle; NULL if no current registration requests are
- * present
+ * If this callback is not NULL, schedule it as a task when opc_map gets empty
*/
- struct GNUNET_TESTBED_HostRegistrationHandle *rh;
+ TESTBED_opcq_empty_cb opcq_empty_cb;
/**
- * The head of the operation queue
+ * Closure for the above task
*/
- struct GNUNET_TESTBED_Operation *op_head;
-
+ void *opcq_empty_cls;
+
/**
- * The tail of the operation queue
+ * Operation queue for simultaneous operations
*/
- struct GNUNET_TESTBED_Operation *op_tail;
+ struct OperationQueue *opq_parallel_operations;
/**
- * The operation id counter. use current value and increment
+ * Operation queue for simultaneous service connections
*/
- uint64_t operation_counter;
-
+ struct OperationQueue *opq_parallel_service_connections;
+
+ /**
+ * Operation queue for simultaneous topology configuration operations
+ */
+ struct OperationQueue *opq_parallel_topology_config_operations;
+
/**
* The controller event mask
*/
int in_receive;
/**
- * Did we create the host for this?
+ * The operation id counter. use current value and increment
*/
- int aux_host;
+ uint32_t operation_counter;
+
};
*/
void
GNUNET_TESTBED_queue_message_ (struct GNUNET_TESTBED_Controller *controller,
- struct GNUNET_MessageHeader *msg);
+ struct GNUNET_MessageHeader *msg);
+
+
+/**
+ * Inserts the given operation context into the operation context map of the
+ * given controller. Creates the operation context map if one does not exist
+ * for the controller
+ *
+ * @param c the controller
+ * @param opc the operation context to be inserted
+ */
+void
+GNUNET_TESTBED_insert_opc_ (struct GNUNET_TESTBED_Controller *c,
+ struct OperationContext *opc);
+
+
+/**
+ * Removes the given operation context from the operation context map of the
+ * given controller
+ *
+ * @param c the controller
+ * @param opc the operation context to remove
+ */
+void
+GNUNET_TESTBED_remove_opc_ (const struct GNUNET_TESTBED_Controller *c,
+ struct OperationContext *opc);
/**
* @param config the serialized configuration
* @param size the size of config
* @param xconfig will be set to the compressed configuration (memory is fresly
- * allocated)
+ * allocated)
* @return the size of the xconfig
*/
size_t
GNUNET_TESTBED_compress_config_ (const char *config, size_t size,
- char **xconfig);
+ char **xconfig);
/**
- * Adds an operation to the queue of operations
+ * Function to serialize and compress using zlib a configuration through a
+ * configuration handle
*
- * @param op the operation to add
+ * @param cfg the configuration
+ * @param size the size of configuration when serialize. Will be set on success.
+ * @param xsize the sizeo of the compressed configuration. Will be set on success.
+ * @return the serialized and compressed configuration
*/
-void
-GNUNET_TESTBED_operation_add_ (struct GNUNET_TESTBED_Operation *op);
+char *
+GNUNET_TESTBED_compress_cfg_ (const struct GNUNET_CONFIGURATION_Handle *cfg,
+ size_t *size, size_t *xsize);
/**
- * Creates a helper initialization message. Only for testing.
+ * Creates a helper initialization message. This function is here because we
+ * want to use this in testing
*
- * @param cname the ip address of the controlling host
+ * @param trusted_ip the ip address of the controller which will be set as TRUSTED
+ * HOST(all connections form this ip are permitted by the testbed) when
+ * starting testbed controller at host. This can either be a single ip
+ * address or a network address in CIDR notation.
+ * @param hostname the hostname of the destination this message is intended for
* @param cfg the configuration that has to used to start the testbed service
* thru helper
* @return the initialization message
*/
struct GNUNET_TESTBED_HelperInit *
-GNUNET_TESTBED_create_helper_init_msg_ (const char *cname,
- const struct GNUNET_CONFIGURATION_Handle *cfg);
+GNUNET_TESTBED_create_helper_init_msg_ (const char *cname, const char *hostname,
+ const struct GNUNET_CONFIGURATION_Handle
+ *cfg);
+
+
+/**
+ * Sends the given message as an operation. The given callback is called when a
+ * reply for the operation is available. Call
+ * GNUNET_TESTBED_forward_operation_msg_cancel_() to cleanup the returned
+ * operation context if the cc hasn't been called
+ *
+ * @param controller the controller to which the message has to be sent
+ * @param operation_id the operation id of the message
+ * @param msg the message to send
+ * @param cc the callback to call when reply is available
+ * @param cc_cls the closure for the above callback
+ * @return the operation context which can be used to cancel the forwarded
+ * operation
+ */
+struct OperationContext *
+GNUNET_TESTBED_forward_operation_msg_ (struct GNUNET_TESTBED_Controller
+ *controller, uint64_t operation_id,
+ const struct GNUNET_MessageHeader *msg,
+ GNUNET_CLIENT_MessageHandler cc,
+ void *cc_cls);
+
+/**
+ * Function to cancel an operation created by simply forwarding an operation
+ * message.
+ *
+ * @param opc the operation context from GNUNET_TESTBED_forward_operation_msg_()
+ */
+void
+GNUNET_TESTBED_forward_operation_msg_cancel_ (struct OperationContext *opc);
+
+
+/**
+ * Generates configuration by uncompressing configuration in given message. The
+ * given message should be of the following types:
+ * GNUNET_MESSAGE_TYPE_TESTBED_PEERCONFIG,
+ * GNUNET_MESSAGE_TYPE_TESTBED_SLAVECONFIG
+ *
+ * @param msg the message containing compressed configuration
+ * @return handle to the parsed configuration
+ */
+struct GNUNET_CONFIGURATION_Handle *
+GNUNET_TESTBED_extract_config_ (const struct GNUNET_MessageHeader *msg);
+
+
+/**
+ * Checks the integrity of the OpeationFailureEventMessage and if good returns
+ * the error message it contains.
+ *
+ * @param msg the OperationFailureEventMessage
+ * @return the error message
+ */
+const char *
+GNUNET_TESTBED_parse_error_string_ (const struct
+ GNUNET_TESTBED_OperationFailureEventMessage
+ *msg);
+
+
+/**
+ * Function to return the operation id for a controller. The operation id is
+ * created from the controllers host id and its internal operation counter.
+ *
+ * @param controller the handle to the controller whose operation id has to be incremented
+ * @return the incremented operation id.
+ */
+uint64_t
+GNUNET_TESTBED_get_next_op_id (struct GNUNET_TESTBED_Controller *controller);
+
+
+/**
+ * Like GNUNET_TESTBED_get_slave_config(), however without the host registration
+ * check. Another difference is that this function takes the id of the slave
+ * host.
+ *
+ * @param op_cls the closure for the operation
+ * @param master the handle to master controller
+ * @param slave_host_id id of the host where the slave controller is running to
+ * the slave_host should remain valid until this operation is cancelled
+ * or marked as finished
+ * @return the operation handle;
+ */
+struct GNUNET_TESTBED_Operation *
+GNUNET_TESTBED_get_slave_config_ (void *op_cls,
+ struct GNUNET_TESTBED_Controller *master,
+ uint32_t slave_host_id);
+
+
+/**
+ * Handler for GNUNET_MESSAGE_TYPE_TESTBED_BARRIER_STATUS messages. This
+ * function is defined in @file testbed_api_barriers.c
+ *
+ * @param c the controller handle to determine the connection this message
+ * belongs to
+ * @param msg the barrier status message
+ * @return GNUNET_OK to keep the connection active; GNUNET_SYSERR to tear it
+ * down signalling an error
+ */
+int
+GNUNET_TESTBED_handle_barrier_status_ (struct GNUNET_TESTBED_Controller *c,
+ const struct GNUNET_TESTBED_BarrierStatusMsg
+ *msg);
+
+
+
#endif
+/* end of testbed_api.h */
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