XBT_PRIVATE smx_activity_t SIMIX_file_write(surf_file_t fd, sg_size_t size, sg_host_t host);
XBT_PRIVATE smx_activity_t SIMIX_file_open(const char* mount, const char* path, sg_storage_t st);
XBT_PRIVATE smx_activity_t SIMIX_file_close(surf_file_t fd, sg_host_t host);
XBT_PRIVATE smx_activity_t SIMIX_file_write(surf_file_t fd, sg_size_t size, sg_host_t host);
XBT_PRIVATE smx_activity_t SIMIX_file_open(const char* mount, const char* path, sg_storage_t st);
XBT_PRIVATE smx_activity_t SIMIX_file_close(surf_file_t fd, sg_host_t host);