Class for spawning WSGI applications.
Methods
Included Modules
Constants
REQUEST_HANDLER | = | File.expand_path(File.dirname(__FILE__) + "/request_handler.py") |
Public Class methods
[ show source ]
# File lib/phusion_passenger/wsgi/application_spawner.rb, line 40 40: def self.spawn_application(*args) 41: @@instance ||= ApplicationSpawner.new 42: @@instance.spawn_application(*args) 43: end
Public Instance methods
Spawn an instance of the given WSGI application. When successful, an Application object will be returned, which represents the spawned application.
Raises:
- AppInitError: The WSGI application raised an exception or called exit() during startup.
- SystemCallError, IOError, SocketError: Something went wrong.
[ show source ]
# File lib/phusion_passenger/wsgi/application_spawner.rb, line 53 53: def spawn_application(options) 54: a, b = UNIXSocket.pair 55: pid = safe_fork(self.class.to_s, true) do 56: a.close 57: 58: file_descriptors_to_leave_open = [0, 1, 2, b.fileno] 59: NativeSupport.close_all_file_descriptors(file_descriptors_to_leave_open) 60: close_all_io_objects_for_fds(file_descriptors_to_leave_open) 61: 62: run(MessageChannel.new(b), options) 63: end 64: b.close 65: Process.waitpid(pid) rescue nil 66: 67: channel = MessageChannel.new(a) 68: return AppProcess.read_from_channel(channel) 69: end