XBT_PRIVATE smx_mailbox_t SIMIX_mbox_create(const char *name);
XBT_PRIVATE smx_mailbox_t SIMIX_mbox_get_by_name(const char *name);
XBT_PRIVATE smx_mailbox_t SIMIX_mbox_create(const char *name);
XBT_PRIVATE smx_mailbox_t SIMIX_mbox_get_by_name(const char *name);