pub struct ExternalLoader;Expand description
A crate::DataLoader that forwards the path to load to all executables present in
the user’s PATH with a name that starts with EXTERNAL_DATA_LOADER_PREFIX.
The external loaders are expected to log rrd data to their standard output.
Refer to our external_data_loader example for more information.
Checkout our guide on how to implement external loaders.
Trait Implementations§
Source§impl DataLoader for ExternalLoader
 
impl DataLoader for ExternalLoader
Source§fn load_from_path(
    &self,
    settings: &DataLoaderSettings,
    filepath: PathBuf,
    tx: Sender<LoadedData>,
) -> Result<(), DataLoaderError>
 
fn load_from_path( &self, settings: &DataLoaderSettings, filepath: PathBuf, tx: Sender<LoadedData>, ) -> Result<(), DataLoaderError>
Loads data from a file on the local filesystem and sends it to 
tx. Read moreSource§fn load_from_file_contents(
    &self,
    _settings: &DataLoaderSettings,
    path: PathBuf,
    _contents: Cow<'_, [u8]>,
    _tx: Sender<LoadedData>,
) -> Result<(), DataLoaderError>
 
fn load_from_file_contents( &self, _settings: &DataLoaderSettings, path: PathBuf, _contents: Cow<'_, [u8]>, _tx: Sender<LoadedData>, ) -> Result<(), DataLoaderError>
Loads data from in-memory file contents and sends it to 
tx. Read moreAuto Trait Implementations§
impl Freeze for ExternalLoader
impl RefUnwindSafe for ExternalLoader
impl Send for ExternalLoader
impl Sync for ExternalLoader
impl Unpin for ExternalLoader
impl UnwindSafe for ExternalLoader
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
    T: ?Sized,
 
impl<T> BorrowMut<T> for Twhere
    T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
 
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
Source§impl<T> CheckedAs for T
 
impl<T> CheckedAs for T
Source§fn checked_as<Dst>(self) -> Option<Dst>where
    T: CheckedCast<Dst>,
 
fn checked_as<Dst>(self) -> Option<Dst>where
    T: CheckedCast<Dst>,
Casts the value.
Source§impl<Src, Dst> CheckedCastFrom<Src> for Dstwhere
    Src: CheckedCast<Dst>,
 
impl<Src, Dst> CheckedCastFrom<Src> for Dstwhere
    Src: CheckedCast<Dst>,
Source§fn checked_cast_from(src: Src) -> Option<Dst>
 
fn checked_cast_from(src: Src) -> Option<Dst>
Casts the value.
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Source§fn into_either(self, into_left: bool) -> Either<Self, Self>
 
fn into_either(self, into_left: bool) -> Either<Self, Self>
Converts 
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otherwise. Read moreSource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
 
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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 moreSource§impl<T> IntoRequest<T> for T
 
impl<T> IntoRequest<T> for T
Source§fn into_request(self) -> Request<T>
 
fn into_request(self) -> Request<T>
Wrap the input message 
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    Dst: LosslessTryFrom<Src>,
 
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Performs the conversion.
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    Dst: LossyFrom<Src>,
 
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    Dst: LossyFrom<Src>,
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Performs the conversion.
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impl<T> OverflowingAs for T
Source§fn overflowing_as<Dst>(self) -> (Dst, bool)where
    T: OverflowingCast<Dst>,
 
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    T: OverflowingCast<Dst>,
Casts the value.
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Casts the value.
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impl<T> Pointable for T
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    T: SaturatingCast<Dst>,
 
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    T: SaturatingCast<Dst>,
Casts the value.
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