Documentation for method pid assembled from the following types:

class Proc

From Proc

(Proc) method pid

method pid()

Returns the PID value of the process if available, or Nil.

class Proc::Async

From Proc::Async

(Proc::Async) method pid

method pid(Proc::Async:D: --> Promise:D)

Equivalent to ready.

Returns a Promise that will be kept once the process has successfully started. Promise will be broken if the program fails to start. Returned promise will hold the process id (PID).

Implementation-specific note: Available starting from Rakudo 2018.04.