Struct FileWatcher

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pub struct FileWatcher { /* private fields */ }

Expand description

A FileWatcher polls for aged-out telemetry files and sends them to InfluxDB

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impl FileWatcher

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pub fn new() -> Self

Create a new FileWatcher

Warning: This function should only be called in applications and not within libraries as it will clobber any set by the application.

Warning: If you will be creating a FileWatcher and a TelemetryLayer, you must create the FileWatcher before the TelemetryLayer as there is a race condition in the thread runtime of tracing and the tokio runtime of Reqwest. Swapping order of the two could lead to possible deadlocks.

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pub fn start(&mut self) -> WatcherResult<()>

Start the FileWatcher

This function forks and has the parent immediately return. The forked off child then daemonises to poll for aged-out telemetry files, sending them to InfluxDB, and exits once there are no more files to process.

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pub fn kill() -> Result<bool>

Kill the FileWatcher daemon if one is running

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pub fn log_error(message: &str) -> Result<()>

Last resort logging of errors, only to be used by the caller when there is no other way to report an error.

Trait Implementations§

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impl Default for FileWatcher

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fn default() -> FileWatcher

Returns the “default value” for a type. Read more

Auto Trait Implementations§

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impl UnsafeUnpin for FileWatcher

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> ErasedDestructor for T
where T: 'static,

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self> ⓘ

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

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fn in_current_span(self) -> Instrumented<Self> ⓘ

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

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impl<T, U> Into for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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