diskCache: Create disk cache (deprecated)
In shiny: Web Application Framework for R

diskCache

R Documentation

Create disk cache (deprecated)

Description

Create disk cache (deprecated)

Usage

diskCache(
  dir = NULL,
  max_size = 500 * 1024^2,
  max_age = Inf,
  max_n = Inf,
  evict = c("lru", "fifo"),
  destroy_on_finalize = FALSE,
  missing = key_missing(),
  exec_missing = deprecated(),
  logfile = NULL
)

Arguments

`dir`	Directory to store files for the cache. If `NULL` (the default) it will create and use a temporary directory.
`max_size`	Maximum size of the cache, in bytes. If the cache exceeds this size, cached objects will be removed according to the value of the `evict`. Use `Inf` for no size limit. The default is 1 gigabyte.
`max_age`	Maximum age of files in cache before they are evicted, in seconds. Use `Inf` for no age limit.
`max_n`	Maximum number of objects in the cache. If the number of objects exceeds this value, then cached objects will be removed according to the value of `evict`. Use `Inf` for no limit of number of items.
`evict`	The eviction policy to use to decide which objects are removed when a cache pruning occurs. Currently, `"lru"` and `"fifo"` are supported.
`destroy_on_finalize`	If `TRUE`, then when the cache_disk object is garbage collected, the cache directory and all objects inside of it will be deleted from disk. If `FALSE` (the default), it will do nothing when finalized.
`missing`	A value to return when `get(key)` is called but the key is not present in the cache. The default is a `key_missing()` object. It is actually an expression that is evaluated each time there is a cache miss. See section Missing keys for more information.
`exec_missing`	Deprecated.
`logfile`	An optional filename or connection object to where logging information will be written. To log to the console, use `stderr()` or `stdout()`.