-smx_synchro_t SIMIX_process_suspend(smx_process_t process, smx_process_t issuer);
-void SIMIX_process_resume(smx_process_t process, smx_process_t issuer);
-int SIMIX_process_get_PID(smx_process_t self);
-int SIMIX_process_get_PPID(smx_process_t self);
-void* SIMIX_process_get_data(smx_process_t process);
-void SIMIX_process_set_data(smx_process_t process, void *data);
-sg_host_t SIMIX_process_get_host(smx_process_t process);
-const char* SIMIX_process_get_name(smx_process_t process);
-smx_process_t SIMIX_process_get_by_name(const char* name);
-int SIMIX_process_is_suspended(smx_process_t process);
-xbt_dict_t SIMIX_process_get_properties(smx_process_t process);
-smx_synchro_t SIMIX_process_join(smx_process_t issuer, smx_process_t process, double timeout);
-smx_synchro_t SIMIX_process_sleep(smx_process_t process, double duration);
-void SIMIX_post_process_sleep(smx_synchro_t synchro);
-
-void SIMIX_process_sleep_suspend(smx_synchro_t synchro);
-void SIMIX_process_sleep_resume(smx_synchro_t synchro);
-void SIMIX_process_sleep_destroy(smx_synchro_t synchro);
-void SIMIX_process_auto_restart_set(smx_process_t process, int auto_restart);
-smx_process_t SIMIX_process_restart(smx_process_t process, smx_process_t issuer);
+XBT_PRIVATE smx_synchro_t SIMIX_process_suspend(smx_process_t process, smx_process_t issuer);
+XBT_PRIVATE void SIMIX_process_resume(smx_process_t process, smx_process_t issuer);
+XBT_PRIVATE int SIMIX_process_get_PID(smx_process_t self);
+XBT_PRIVATE int SIMIX_process_get_PPID(smx_process_t self);
+XBT_PRIVATE void* SIMIX_process_get_data(smx_process_t process);
+XBT_PRIVATE void SIMIX_process_set_data(smx_process_t process, void *data);
+XBT_PRIVATE sg_host_t SIMIX_process_get_host(smx_process_t process);
+XBT_PRIVATE const char* SIMIX_process_get_name(smx_process_t process);
+XBT_PRIVATE smx_process_t SIMIX_process_get_by_name(const char* name);
+XBT_PRIVATE int SIMIX_process_is_suspended(smx_process_t process);
+XBT_PRIVATE xbt_dict_t SIMIX_process_get_properties(smx_process_t process);
+XBT_PRIVATE smx_synchro_t SIMIX_process_join(smx_process_t issuer, smx_process_t process, double timeout);
+XBT_PRIVATE smx_synchro_t SIMIX_process_sleep(smx_process_t process, double duration);
+XBT_PRIVATE void SIMIX_post_process_sleep(smx_synchro_t synchro);
+
+XBT_PRIVATE void SIMIX_process_sleep_suspend(smx_synchro_t synchro);
+XBT_PRIVATE void SIMIX_process_sleep_resume(smx_synchro_t synchro);
+XBT_PRIVATE void SIMIX_process_sleep_destroy(smx_synchro_t synchro);
+XBT_PRIVATE void SIMIX_process_auto_restart_set(smx_process_t process, int auto_restart);
+XBT_PRIVATE smx_process_t SIMIX_process_restart(smx_process_t process, smx_process_t issuer);
+
+void SIMIX_segment_index_set(smx_process_t, int);
+extern void (*SMPI_switch_data_segment)(int);