module ProcessObserver

all() click to toggle source

List of all active processes.

@return [Array<Process>]

# File lib/process_observer/main.rb, line 7
def self.all
  case
    when OS.windows?
      Windows.call
    when OS.linux?
      Linux.call
    else
      raise UnsupportedPlatformError, "This platform is currently unsupported", caller
  end
end

running() click to toggle source

List of all running processes.

@return [Array<Process>]

# File lib/process_observer/main.rb, line 22
def self.running
  case
    when OS.windows?
      Windows.call(fi: "STATUS eq RUNNING")
    when OS.linux?
      Linux.call.select { |process| process.status.include?("R") }
    else
      raise UnsupportedPlatformError, "This platform is currently unsupported", caller
  end
end

this(process_list = nil) click to toggle source

Requests info about current Ruby process.

@param process_list [Array<Process>, nil] previously saved array of processes

or +nil+ if you want to request all processes in this method.

@return [Process, nil] nil may be returned if process not found in provided process list.

# File lib/process_observer/main.rb, line 40
def self.this(process_list = nil)
  pid = ::Process.pid

  if process_list
    return process_list.find { |process| process.pid == pid }
  end

  case
    when OS.windows?
      arr = Windows.call(fi: "PID eq #{pid}")
    when OS.linux?
      arr = Linux.call.select { |process| process.pid == pid }
    else
      raise UnsupportedPlatformError, "This platform is currently unsupported", caller
  end
  raise MultipleProcessError, "Expected single process, got: #{arr.size}", caller if arr.size != 1
  arr[0]
end

used_memory(process_list = nil) click to toggle source

Get total used memory.

@param process_list [Array<Process>, nil] previously saved array of processes

or +nil+ if you want to request all processes in this method.

@return [Integer] used memory in KB.

# File lib/process_observer/main.rb, line 66
def self.used_memory(process_list = nil)
  arr = process_list ? process_list : self.all
  arr.sum(0, &:memory)
end

Constants

Public Class Methods