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Extract Shared Memory Name

Source: R/share.R
shared_name.Rd

Extract the shared memory name from a shared object. This name can be passed to map_shared() to open the same region in another process.

Usage

shared_name(x)

Arguments

x

a shared object as returned by share() or map_shared().

Value

A character string identifying the shared object, or NULL if x is not a shared object. For a sub-list or element extracted from a shared list, the string carries a bracketed 1-based index path (e.g. "/mori_abc_1[2,3]"). map_shared() accepts both forms; the path-qualified form returns the addressed sub-object directly. The underlying shared memory region name is the prefix before [ and is recoverable via sub("\\[.*$", "", shared_name(x)).

See also

map_shared() to open a shared region by name.

Examples

x <- share(rnorm(100))
shared_name(x)
#> [1] "/mori_19d7_3"