void TRACE_surf_link_declaration (char *name, double bw, double lat);
void TRACE_surf_link_set_bandwidth (double date, char *resource, double bandwidth);
void TRACE_surf_link_set_latency (double date, char *resource, double latency);
void TRACE_surf_link_set_utilization (const char *name, smx_action_t smx_action, double value, double now, double delta);
void TRACE_surf_link_declaration (char *name, double bw, double lat);
void TRACE_surf_link_set_bandwidth (double date, char *resource, double bandwidth);
void TRACE_surf_link_set_latency (double date, char *resource, double latency);
void TRACE_surf_link_set_utilization (const char *name, smx_action_t smx_action, double value, double now, double delta);