-tmgr_history_t tmgr_history_new(void);
-void tmgr_history_free(tmgr_history_t history);
-
-tmgr_trace_t tmgr_trace_new(const char *filename);
-tmgr_trace_t tmgr_empty_trace_new(void);
-void tmgr_trace_free(tmgr_trace_t trace);
-
-tmgr_trace_event_t tmgr_history_add_trace(tmgr_history_t history,
- tmgr_trace_t trace,
- double start_time, int offset,
- void *resource);
+XBT_PUBLIC(tmgr_history_t) tmgr_history_new(void);
+XBT_PUBLIC(void) tmgr_history_free(tmgr_history_t history);
+
+XBT_PUBLIC(tmgr_trace_t) tmgr_trace_new(const char *filename);
+XBT_PUBLIC(tmgr_trace_t) tmgr_trace_new_from_string(const char *id,
+ const char *input,
+ double periodicity,
+ double timestep);
+XBT_PUBLIC(tmgr_trace_t) tmgr_empty_trace_new(void);
+XBT_PUBLIC(void) tmgr_trace_free(tmgr_trace_t trace);
+/**
+ * \brief Free a trace event structure
+ *
+ * This function frees a trace_event if it can be freed, ie, if it has the free_me flag set to 1. This flag indicates whether the structure is still used somewhere or not.
+ * \param trace_event Trace event structure
+ * \return 1 if the structure was freed, 0 otherwise
+*/
+XBT_PUBLIC(int) tmgr_trace_event_free(tmgr_trace_event_t trace_event);
+
+XBT_PUBLIC(tmgr_trace_event_t) tmgr_history_add_trace(tmgr_history_t history,
+ tmgr_trace_t trace,
+ double start_time,
+ unsigned int offset,
+ void *model);