Struct menmos::fs::MenmosFile
source · [−]pub struct MenmosFile { /* private fields */ }
Expand description
A handle to a file in a menmos cluster.
Implementations
sourceimpl MenmosFile
impl MenmosFile
pub fn open(client: Arc<Client>, id: &str) -> Result<Self, FsError>
sourcepub async fn write(&mut self, buf: &[u8]) -> Result<usize, FsError>
pub async fn write(&mut self, buf: &[u8]) -> Result<usize, FsError>
Write the contents of the provided buffer to the file, at the current offset.
Returns the number of bytes written. If no errors occured, the value returned will always be the length of the provided buffer.
sourcepub async fn seek(&mut self, pos: SeekFrom) -> Result<u64, FsError>
pub async fn seek(&mut self, pos: SeekFrom) -> Result<u64, FsError>
Seek to a new position in the file.
Going past the end of the file will not return an error, the offset will simply be truncated to the length of the file.
Errors
Seeking to a negative offset will return an error variant.
sourcepub async fn read(&mut self, buf: &mut [u8]) -> Result<usize, FsError>
pub async fn read(&mut self, buf: &mut [u8]) -> Result<usize, FsError>
Read a number of bytes from the file.
Returns the number of bytes read 0 <= n <= buf.len()
.
If the number of bytes read is 0, the current offset is past the end of the file.
If the number of bytes read is inferior to buf.len()
, the no more bytes
could be read at this moment.
sourcepub async fn read_to_end(&mut self, buf: &mut Vec<u8>) -> Result<usize, FsError>
pub async fn read_to_end(&mut self, buf: &mut Vec<u8>) -> Result<usize, FsError>
Read bytes from the current offset to the end of the file.
Returns the number of bytes read.
sourcepub async fn read_to_string(
&mut self,
string: &mut String
) -> Result<usize, FsError>
pub async fn read_to_string(
&mut self,
string: &mut String
) -> Result<usize, FsError>
Read bytes from the current offset to the end of the file and decode those bytes as a UTF-8 string.
Returns the number of bytes read.
Trait Implementations
sourceimpl Clone for MenmosFile
impl Clone for MenmosFile
sourcefn clone(&self) -> MenmosFile
fn clone(&self) -> MenmosFile
Returns a copy of the value. Read more
1.0.0 · sourcefn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from source
. Read more
Auto Trait Implementations
impl !RefUnwindSafe for MenmosFile
impl Send for MenmosFile
impl Sync for MenmosFile
impl Unpin for MenmosFile
impl !UnwindSafe for MenmosFile
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
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impl<T> FmtForward for T
impl<T> FmtForward for T
fn fmt_binary(self) -> FmtBinary<Self> where
Self: Binary,
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Self: Binary,
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fn fmt_display(self) -> FmtDisplay<Self> where
Self: Display,
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Self: Display,
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fn fmt_lower_exp(self) -> FmtLowerExp<Self> where
Self: LowerExp,
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Self: LowerExp,
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fn fmt_lower_hex(self) -> FmtLowerHex<Self> where
Self: LowerHex,
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Self: Octal,
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Self: UpperExp,
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Self: UpperExp,
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fn fmt_upper_hex(self) -> FmtUpperHex<Self> where
Self: UpperHex,
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Self: UpperHex,
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fn fmt_list(self) -> FmtList<Self> where
&'a Self: for<'a> IntoIterator,
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&'a Self: for<'a> IntoIterator,
Formats each item in a sequence. Read more
sourceimpl<T> Instrument for T
impl<T> Instrument for T
sourcefn instrument(self, span: Span) -> Instrumented<Self>
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sourcefn in_current_span(self) -> Instrumented<Self>
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T: ?Sized,
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T: ?Sized,
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Self: Borrow<B>,
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&'a mut self,
func: impl FnOnce(&'a mut B) -> R
) -> R where
Self: BorrowMut<B>,
B: 'a + ?Sized,
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fn pipe_borrow_mut<'a, B, R>(
&'a mut self,
func: impl FnOnce(&'a mut B) -> R
) -> R where
Self: BorrowMut<B>,
B: 'a + ?Sized,
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Self: AsRef<U>,
U: 'a + ?Sized,
R: 'a,
Borrows self
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Self: AsMut<U>,
U: 'a + ?Sized,
R: 'a,
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Self: AsMut<U>,
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Self: Deref<Target = T>,
T: 'a + ?Sized,
R: 'a,
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impl<T> Tap for T
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fn tap_borrow<B>(self, func: impl FnOnce(&B)) -> Self where
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B: ?Sized,
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R: ?Sized,
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fn tap_dbg(self, func: impl FnOnce(&Self)) -> Self
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Calls .tap_ref()
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fn tap_ref_mut_dbg<R>(self, func: impl FnOnce(&mut R)) -> Self where
Self: AsMut<R>,
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R: ?Sized,
Calls .tap_ref_mut()
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sourceimpl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
type Owned = T
The resulting type after obtaining ownership.
sourcefn clone_into(&self, target: &mut T)
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toowned_clone_into
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sourceimpl<T> WithSubscriber for T
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