pub trait Env {
Show 16 methods
// Required methods
fn open_sequential_file(&self, _: &Path) -> Result<Box<dyn Read>>;
fn open_random_access_file(&self, _: &Path) -> Result<Box<dyn RandomAccess>>;
fn open_writable_file(&self, _: &Path) -> Result<Box<dyn Write>>;
fn open_appendable_file(&self, _: &Path) -> Result<Box<dyn Write>>;
fn exists(&self, _: &Path) -> Result<bool>;
fn children(&self, _: &Path) -> Result<Vec<PathBuf>>;
fn size_of(&self, _: &Path) -> Result<usize>;
fn delete(&self, _: &Path) -> Result<()>;
fn mkdir(&self, _: &Path) -> Result<()>;
fn rmdir(&self, _: &Path) -> Result<()>;
fn rename(&self, _: &Path, _: &Path) -> Result<()>;
fn lock(&self, _: &Path) -> Result<FileLock>;
fn unlock(&self, l: FileLock) -> Result<()>;
fn new_logger(&self, _: &Path) -> Result<Logger>;
fn micros(&self) -> u64;
fn sleep_for(&self, micros: u32);
}