sg_size_t file_write(surf_file_t fd, sg_size_t size, sg_host_t host) [[block]];
surf_file_t file_open(const char* mount, const char* path, sg_storage_t st) [[block]];
int file_close(surf_file_t fd, sg_host_t host) [[block]];
-int file_unlink(surf_file_t fd, sg_host_t host) [[nohandler]];
int file_move(surf_file_t fd, const char* fullpath);
int mc_random(int min, int max);