Basic infrastructure for asynchronous socket service clients and servers.
 
There are only two ways to have a program on a single processor do "more
than one thing at a time".  Multi-threaded programming is the simplest and 
most popular way to do it, but there is another very different technique,
that lets you have nearly all the advantages of multi-threading, without
actually using multiple threads. it's really only practical if your program
is largely I/O bound. If your program is CPU bound, then pre-emptive
scheduled threads are probably what you really need. Network servers are
rarely CPU-bound, however. 
 
If your operating system supports the select() system call in its I/O 
library (and nearly all do), then you can use it to juggle multiple
communication channels at once; doing other work while your I/O is taking
place in the "background."  Although this strategy can seem strange and
complex, especially at first, it is in many ways easier to understand and
control than multi-threaded programming. The module documented here solves
many of the difficult problems for you, making the task of building
sophisticated high-performance network servers and clients a snap.

Modules
		FCNTL fcntl os select socket string sys

Classes
		dispatcher dispatcher_with_send file_dispatcher file_wrapper   class dispatcher            __getattr__(self, attr) # cheap inheritance, used to pass all other attribute # references to the underlying socket object. # NOTE: this may be removed soon for performance reasons. __init__(self, sock=None) __repr__(self) accept(self) add_channel(self) bind(self, addr) close(self) connect(self, address) create_socket(self, family, type) del_channel(self) handle_accept(self) handle_close(self) handle_connect(self) handle_error(self) handle_expt(self) handle_expt_event(self) handle_read(self) handle_read_event(self) handle_write(self) handle_write_event(self) listen(self, num) log(self, message) readable(self) recv(self, buffer_size) send(self, data) set_reuse_addr(self) set_socket(self, socket) writable(self)   class dispatcher_with_send(dispatcher)            __getattr__(self, attr) from dispatcher __init__(self, sock=None) __repr__(self) from dispatcher accept(self) from dispatcher add_channel(self) from dispatcher bind(self, addr) from dispatcher close(self) from dispatcher connect(self, address) from dispatcher create_socket(self, family, type) from dispatcher del_channel(self) from dispatcher handle_accept(self) from dispatcher handle_close(self) from dispatcher handle_connect(self) from dispatcher handle_error(self) from dispatcher handle_expt(self) from dispatcher handle_expt_event(self) from dispatcher handle_read(self) from dispatcher handle_read_event(self) from dispatcher handle_write(self) handle_write_event(self) from dispatcher initiate_send(self) listen(self, num) from dispatcher log(self, message) from dispatcher readable(self) from dispatcher recv(self, buffer_size) from dispatcher send(self, data) set_reuse_addr(self) from dispatcher set_socket(self, socket) from dispatcher writable(self)   class file_dispatcher(dispatcher)            __getattr__(self, attr) from dispatcher __init__(self, fd) __repr__(self) from dispatcher accept(self) from dispatcher add_channel(self) from dispatcher bind(self, addr) from dispatcher close(self) from dispatcher connect(self, address) from dispatcher create_socket(self, family, type) from dispatcher del_channel(self) from dispatcher handle_accept(self) from dispatcher handle_close(self) from dispatcher handle_connect(self) from dispatcher handle_error(self) from dispatcher handle_expt(self) from dispatcher handle_expt_event(self) from dispatcher handle_read(self) from dispatcher handle_read_event(self) from dispatcher handle_write(self) from dispatcher handle_write_event(self) from dispatcher listen(self, num) from dispatcher log(self, message) from dispatcher readable(self) from dispatcher recv(self, buffer_size) from dispatcher send(self, data) from dispatcher set_file(self, fd) set_reuse_addr(self) from dispatcher set_socket(self, socket) from dispatcher writable(self) from dispatcher   class file_wrapper            __init__(self, fd) # here we override just enough to make a file # look like a socket for the purposes of asyncore. close(self) fileno(self) recv(self, *args) write(self, *args)

Functions
		close_all() compact_traceback() loop(timeout=30.0, use_poll=0) poll(timeout=0.0) poll2(timeout=0.0)

Data
		EALREADY = 114 ECONNRESET = 104 EINPROGRESS = 115 ENOTCONN = 107 ESHUTDOWN = 108 EWOULDBLOCK = 11 __file__ = '/usr/lib/python1.6/asyncore.pyc' __name__ = 'asyncore' socket_map = {}