class Cocaine::CommandLine::PosixRunner

Public Class Methods

available?() click to toggle source
# File lib/cocaine/command_line/runners/posix_runner.rb, line 5
def self.available?
  return @available unless @available.nil?

  @available = posix_spawn_gem_available?
end
supported?() click to toggle source
# File lib/cocaine/command_line/runners/posix_runner.rb, line 11
def self.supported?
  available? && !OS.java?
end

Private Class Methods

posix_spawn_gem_available?() click to toggle source
# File lib/cocaine/command_line/runners/posix_runner.rb, line 38
def self.posix_spawn_gem_available?
  require 'posix/spawn'
  true
rescue LoadError
  false
end

Public Instance Methods

call(command, env = {}, options = {}) click to toggle source
# File lib/cocaine/command_line/runners/posix_runner.rb, line 19
def call(command, env = {}, options = {})
  pipe = MultiPipe.new
  pid = spawn(env, command, options.merge(pipe.pipe_options))
  pipe.read_and_then do
    waitpid(pid)
  end
  pipe.output
end
supported?() click to toggle source
# File lib/cocaine/command_line/runners/posix_runner.rb, line 15
def supported?
  self.class.supported?
end

Private Instance Methods

spawn(*args) click to toggle source
# File lib/cocaine/command_line/runners/posix_runner.rb, line 30
def spawn(*args)
  POSIX::Spawn.spawn(*args)
end
waitpid(pid) click to toggle source
# File lib/cocaine/command_line/runners/posix_runner.rb, line 34
def waitpid(pid)
  Process.waitpid(pid)
end