Struct staart::TailedFile [−][src]
TailedFile
tracks the state of a file being followed. It offers
methods for updating this state, and printing data to stdout
. The
user may define the duration between updates if operating in a loop
with delay.
Implementations
impl<'a> TailedFile<'a>
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pub fn new(path: &str) -> Result<TailedFile<'_>>
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Creates an instance of std::io::Result<staart::TailedFile>
Example
let mut f = staart::TailedFile::new("/var/log/syslog");
Defaults
delay
: 100ms
Propagates Errors
- If the path provided does not exist, or is not readable by the current user
- If file metadata can not be read
pub fn update_status(&mut self) -> Result<()>
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Updates the status of an instance of staart::TailedFile
File metadata are refreshed, and the position is updated if changes have occured since the last read operation.
pub fn read(&mut self) -> Result<Vec<u8>>
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Reads new data for an instance of staart::TailedFile
and returns
std::io::Result<Vec<u8>>
pub fn follow(&mut self) -> Result<(), Box<dyn Error>>
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Prints new data read on an instance of staart::TailedFile
to stdout
pub fn set_delay(&mut self, d: u64)
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Sets a delay duration, in milliseconds, for an instance of staart::TailedFile
.
This value is used when calling staart::TailedFile::sleep()
.
pub fn sleep(&mut self)
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Sleeps for staart::TailedFile.delay
milliseconds
Auto Trait Implementations
impl<'a> RefUnwindSafe for TailedFile<'a>
impl<'a> Send for TailedFile<'a>
impl<'a> Sync for TailedFile<'a>
impl<'a> Unpin for TailedFile<'a>
impl<'a> UnwindSafe for TailedFile<'a>
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,