Cached IsPath

TanayLabUtilities.CachedIsPath

— Module

Wrap ispath with a cache such that repeated calls do not go to the OS. This greatly speeds up operations when working with NFS data.

Note

The code here is thread-safe.

TanayLabUtilities.CachedIsPath.cached_ispath

— Function

cached_ispath(path::AbstractString)::Bool

Same as ispath, except that if less than IS_PATH_CACHE_TIMEOUT_NS has passed since the last time cached_ispath was called for the same path, we reuse the result. If IS_PATH_CACHE_TIMEOUT_NS is zero, this ignores the cache and simply calls ispath.

Note

Do not pass this a path that ends with a /, or the empty string. We actually cache the list of files in the directory, since this gives much faster results when checking for multiple files in the same directory.

TanayLabUtilities.CachedIsPath.empty_ispath_cache!

— Function

empty_ispath_cache!(path::Maybe{AbstractString} = nothing)::Nothing

Empty the cached_ispath cache. If a path is specified, only clears the cached entry for this path (and every other file in the same directory).

TanayLabUtilities.CachedIsPath.IS_PATH_CACHE_TIMEOUT_NS

— Constant

How long to hold on to ispath results before going back to the OS and asking for an updated result. By default, this is set to 1 second (10^9 ns). If this is zero then cached_ispath ignores the cache and simply calls ispath.

Cached IsPath

Index