+XBT_PUBLIC(e_surf_action_state_t) SIMIX_action_get_state(smx_action_t action);
+
+XBT_PUBLIC(smx_action_t) SIMIX_action_parallel_execute(char *name,
+ int host_nb,
+ smx_host_t * host_list,
+ double
+ *computation_amount, double
+ *communication_amount,
+ double amount,
+ double rate);
+
+XBT_PUBLIC(char *) SIMIX_action_get_name(smx_action_t action);
+XBT_PUBLIC(void) SIMIX_action_signal_all(smx_action_t action);
+XBT_PUBLIC(void) SIMIX_display_process_status(void);
+/************************** Comunication Handling *****************************/
+
+/* Public */
+XBT_PUBLIC(smx_rdv_t) SIMIX_rdv_create(const char *name);
+XBT_PUBLIC(void) SIMIX_rdv_destroy(smx_rdv_t rvp);
+XBT_PUBLIC(void) SIMIX_network_send(smx_rdv_t rdv, double task_size, double rate,
+ double timeout, void *data, size_t data_size,
+ int (filter)(smx_comm_t, void *), void *arg);
+XBT_PUBLIC(void) SIMIX_network_recv(smx_rdv_t rdv, double timeout, void *data,
+ size_t *data_size, int (filter)(smx_comm_t, void *), void *arg);
+XBT_PUBLIC(void) SIMIX_network_wait(smx_action_t comm);
+XBT_PUBLIC(int) SIMIX_network_test(smx_action_t comm);
+XBT_PUBLIC(int) SIMIX_communication_isSend(smx_comm_t comm);
+XBT_PUBLIC(int) SIMIX_communication_isRecv(smx_comm_t comm);
+
+/* FIXME: Filter function */
+int comm_filter_get(smx_comm_t comm, void *arg);
+int comm_filter_put(smx_comm_t comm, void *arg);
+
+/* These should be private to SIMIX */
+smx_comm_t SIMIX_communication_new(smx_comm_type_t type, smx_rdv_t rdv);
+void SIMIX_communication_destroy(smx_comm_t comm);
+static inline void SIMIX_communication_use(smx_comm_t comm);
+static inline void SIMIX_communication_wait_for_completion(smx_comm_t comm, double timeout);
+smx_comm_t SIMIX_rdv_get_request(smx_rdv_t rdv, int (filter)(smx_comm_t, void *), void *arg);
+static inline void SIMIX_rdv_push(smx_rdv_t rdv, smx_comm_t comm);
+static inline void SIMIX_rdv_remove(smx_rdv_t rdv, smx_comm_t comm);
+static inline smx_cond_t SIMIX_rdv_get_cond(smx_rdv_t rdv);
+void SIMIX_network_copy_data(smx_comm_t comm);