-#ifdef MSG_USE_DEPRECATED
-# define PROCESS_SET_ERRNO(val) \
- (((simdata_process_t) SIMIX_process_self_get_data(SIMIX_process_self()))->last_errno=val)
-# define PROCESS_GET_ERRNO() \
- (((simdata_process_t) SIMIX_process_self_get_data(SIMIX_process_self()))->last_errno)
-#define MSG_RETURN(val) do {PROCESS_SET_ERRNO(val);return(val);} while(0)
-/* #define CHECK_ERRNO() ASSERT((PROCESS_GET_ERRNO()!=MSG_HOST_FAILURE),"Host failed, you cannot call this function.") */
-
-#else
-# define MSG_RETURN(val) return(val)
-#endif
+XBT_PRIVATE msg_host_t __MSG_host_create(sg_host_t host);
+XBT_PRIVATE msg_storage_t __MSG_storage_create(smx_storage_t storage);
+XBT_PRIVATE void __MSG_storage_destroy(msg_storage_priv_t host);
+XBT_PRIVATE void __MSG_file_destroy(msg_file_priv_t host);
+
+XBT_PRIVATE void MSG_process_cleanup_from_SIMIX(smx_actor_t smx_proc);
+XBT_PRIVATE smx_actor_t MSG_process_create_from_SIMIX(const char* name, std::function<void()> code, void* data,
+ sg_host_t host, xbt_dict_t properties,
+ smx_actor_t parent_process);
+XBT_PRIVATE void MSG_comm_copy_data_from_SIMIX(smx_activity_t comm, void* buff, size_t buff_size);
+
+XBT_PRIVATE void MSG_post_create_environment();
+
+XBT_PRIVATE void MSG_host_add_task(msg_host_t host, msg_task_t task);
+XBT_PRIVATE void MSG_host_del_task(msg_host_t host, msg_task_t task);
+
+/********** Tracing **********/
+/* declaration of instrumentation functions from msg_task_instr.c */
+XBT_PRIVATE void TRACE_msg_set_task_category(msg_task_t task, const char *category);
+XBT_PRIVATE void TRACE_msg_task_create(msg_task_t task);
+XBT_PRIVATE void TRACE_msg_task_execute_start(msg_task_t task);
+XBT_PRIVATE void TRACE_msg_task_execute_end(msg_task_t task);
+XBT_PRIVATE void TRACE_msg_task_destroy(msg_task_t task);
+XBT_PRIVATE void TRACE_msg_task_get_end(double start_time, msg_task_t task);
+XBT_PRIVATE void TRACE_msg_task_get_start();
+XBT_PRIVATE int TRACE_msg_task_put_start(msg_task_t task); //returns TRUE if the task_put_end must be called
+XBT_PRIVATE void TRACE_msg_task_put_end();
+
+/* declaration of instrumentation functions from msg_process_instr.c */
+XBT_PRIVATE char *instr_process_id (msg_process_t proc, char *str, int len);
+XBT_PRIVATE char *instr_process_id_2 (const char *process_name, int process_pid, char *str, int len);
+XBT_PRIVATE void TRACE_msg_process_change_host(msg_process_t process, msg_host_t old_host, msg_host_t new_host);
+XBT_PRIVATE void TRACE_msg_process_create (const char *process_name, int process_pid, msg_host_t host);
+XBT_PRIVATE void TRACE_msg_process_destroy (const char *process_name, int process_pid);
+XBT_PRIVATE void TRACE_msg_process_kill(smx_process_exit_status_t status, msg_process_t process);
+XBT_PRIVATE void TRACE_msg_process_suspend(msg_process_t process);
+XBT_PRIVATE void TRACE_msg_process_resume(msg_process_t process);
+XBT_PRIVATE void TRACE_msg_process_sleep_in(msg_process_t process); //called from msg/gos.c
+XBT_PRIVATE void TRACE_msg_process_sleep_out(msg_process_t process);