Gecko [ www.foryou-vip.com ]

Name	Size	Permission	Date
bsddb	[ DIR ]	drwxrwxrwx	2022-03-20 10:36
compiler	[ DIR ]	drwxrwxrwx	2022-03-20 10:36
config-x86_64-linux-gnu	[ DIR ]	drwxrwxrwx	2022-03-20 10:35
ctypes	[ DIR ]	drwxrwxrwx	2022-03-20 10:36
curses	[ DIR ]	drwxrwxrwx	2022-03-20 10:36
dist-packages	[ DIR ]	drwxrwxrwx	2022-03-20 10:38
distutils	[ DIR ]	drwxrwxrwx	2022-03-20 10:36
email	[ DIR ]	drwxrwxrwx	2022-03-20 10:36
encodings	[ DIR ]	drwxrwxrwx	2022-03-20 10:36
ensurepip	[ DIR ]	drwxrwxrwx	2022-03-20 10:36
hotshot	[ DIR ]	drwxrwxrwx	2022-03-20 10:36
importlib	[ DIR ]	drwxrwxrwx	2022-03-20 10:36
json	[ DIR ]	drwxrwxrwx	2022-03-20 10:36
lib-dynload	[ DIR ]	drwxrwxrwx	2022-03-20 10:35
lib-tk	[ DIR ]	drwxrwxrwx	2022-03-20 10:36
lib2to3	[ DIR ]	drwxrwxrwx	2022-03-20 10:36
logging	[ DIR ]	drwxrwxrwx	2022-03-20 10:36
multiprocessing	[ DIR ]	drwxrwxrwx	2022-03-20 10:36
plat-x86_64-linux-gnu	[ DIR ]	drwxrwxrwx	2022-03-20 10:36
pydoc_data	[ DIR ]	drwxrwxrwx	2022-03-20 10:36
sqlite3	[ DIR ]	drwxrwxrwx	2022-03-20 10:36
test	[ DIR ]	drwxrwxrwx	2022-03-20 10:36
unittest	[ DIR ]	drwxrwxrwx	2022-03-20 10:36
wsgiref	[ DIR ]	drwxrwxrwx	2022-03-20 10:36
xml	[ DIR ]	drwxrwxrwx	2022-03-20 10:36
BaseHTTPServer.py	22.21 KB	-rw-r--r--	2022-02-06 21:16
BaseHTTPServer.pyc	21.17 KB	-rw-r--r--	2022-03-20 10:36
Bastion.py	5.61 KB	-rw-r--r--	2022-02-06 21:16
Bastion.pyc	6.47 KB	-rw-r--r--	2022-03-20 10:36
CGIHTTPServer.py	12.78 KB	-rw-r--r--	2022-02-06 21:16
CGIHTTPServer.pyc	10.73 KB	-rw-r--r--	2022-03-20 10:36
ConfigParser.py	27.1 KB	-rw-r--r--	2022-02-06 21:16
ConfigParser.pyc	24.51 KB	-rw-r--r--	2022-03-20 10:36
Cookie.py	25.92 KB	-rw-r--r--	2022-02-06 21:16
Cookie.pyc	22.05 KB	-rw-r--r--	2022-03-20 10:36
DocXMLRPCServer.py	10.52 KB	-rw-r--r--	2022-02-06 21:16
DocXMLRPCServer.pyc	9.92 KB	-rw-r--r--	2022-03-20 10:36
HTMLParser.py	16.73 KB	-rw-r--r--	2022-02-06 21:16
HTMLParser.pyc	13.34 KB	-rw-r--r--	2022-03-20 10:36
LICENSE.txt	12.47 KB	-rw-r--r--	2022-02-06 21:16
MimeWriter.py	6.33 KB	-rw-r--r--	2022-02-06 21:16
MimeWriter.pyc	7.17 KB	-rw-r--r--	2022-03-20 10:36
Queue.py	8.38 KB	-rw-r--r--	2022-02-06 21:16
Queue.pyc	9.15 KB	-rw-r--r--	2022-03-20 10:36
SimpleHTTPServer.py	7.81 KB	-rw-r--r--	2022-02-06 21:16
SimpleHTTPServer.pyc	7.8 KB	-rw-r--r--	2022-03-20 10:36
SimpleXMLRPCServer.py	25.21 KB	-rw-r--r--	2022-02-06 21:16
SimpleXMLRPCServer.pyc	22.26 KB	-rw-r--r--	2022-03-20 10:36
SocketServer.py	23.24 KB	-rw-r--r--	2022-02-06 21:16
SocketServer.pyc	23.39 KB	-rw-r--r--	2022-03-20 10:36
StringIO.py	10.41 KB	-rw-r--r--	2022-02-06 21:16
StringIO.pyc	11.17 KB	-rw-r--r--	2022-03-20 10:36
UserDict.py	6.89 KB	-rw-r--r--	2022-02-06 21:16
UserDict.pyc	9.4 KB	-rw-r--r--	2022-03-20 10:36
UserList.py	3.56 KB	-rw-r--r--	2022-02-06 21:16
UserList.pyc	6.36 KB	-rw-r--r--	2022-03-20 10:36
UserString.py	9.46 KB	-rwxr-xr-x	2022-02-06 21:16
UserString.pyc	14.38 KB	-rw-r--r--	2022-03-20 10:36
_LWPCookieJar.py	6.4 KB	-rw-r--r--	2022-02-06 21:16
_LWPCookieJar.pyc	5.29 KB	-rw-r--r--	2022-03-20 10:36
_MozillaCookieJar.py	5.66 KB	-rw-r--r--	2022-02-06 21:16
_MozillaCookieJar.pyc	4.35 KB	-rw-r--r--	2022-03-20 10:36
__future__.py	4.28 KB	-rw-r--r--	2022-02-06 21:16
__future__.pyc	4.11 KB	-rw-r--r--	2022-03-20 10:36
__phello__.foo.py	64 B	-rw-r--r--	2022-02-06 21:16
__phello__.foo.pyc	123 B	-rw-r--r--	2022-03-20 10:36
_abcoll.py	18.18 KB	-rw-r--r--	2022-02-06 21:16
_abcoll.pyc	24.88 KB	-rw-r--r--	2022-03-20 10:36
_osx_support.py	18.65 KB	-rw-r--r--	2022-02-06 21:16
_osx_support.pyc	11.45 KB	-rw-r--r--	2022-03-20 10:36
_pyio.py	67.96 KB	-rw-r--r--	2022-02-06 21:16
_pyio.pyc	62.82 KB	-rw-r--r--	2022-03-20 10:36
_strptime.py	20.24 KB	-rw-r--r--	2022-02-06 21:16
_strptime.pyc	14.77 KB	-rw-r--r--	2022-03-20 10:36
_sysconfigdata.py	126 B	-rw-r--r--	2022-02-06 21:16
_sysconfigdata.pyc	279 B	-rw-r--r--	2022-03-20 10:36
_threading_local.py	7.28 KB	-rw-r--r--	2022-02-06 21:16
_threading_local.pyc	6.4 KB	-rw-r--r--	2022-03-20 10:36
_weakrefset.py	5.77 KB	-rw-r--r--	2022-02-06 21:16
_weakrefset.pyc	9.36 KB	-rw-r--r--	2022-03-20 10:36
abc.py	6.98 KB	-rw-r--r--	2022-02-06 21:16
abc.pyc	5.98 KB	-rw-r--r--	2022-03-20 10:36
aifc.py	33.49 KB	-rw-r--r--	2022-02-06 21:16
aifc.pyc	29.5 KB	-rw-r--r--	2022-03-20 10:36
antigravity.py	60 B	-rw-r--r--	2022-02-06 21:16
antigravity.pyc	201 B	-rw-r--r--	2022-03-20 10:36
anydbm.py	2.6 KB	-rw-r--r--	2022-02-06 21:16
anydbm.pyc	2.73 KB	-rw-r--r--	2022-03-20 10:36
argparse.egg-info	217 B	-rw-r--r--	2022-02-06 21:16
argparse.py	87.04 KB	-rw-r--r--	2022-02-06 21:16
argparse.pyc	62.54 KB	-rw-r--r--	2022-03-20 10:36
ast.py	11.53 KB	-rw-r--r--	2022-02-06 21:16
ast.pyc	12.59 KB	-rw-r--r--	2022-03-20 10:36
asynchat.py	11.33 KB	-rw-r--r--	2022-02-06 21:16
asynchat.pyc	8.55 KB	-rw-r--r--	2022-03-20 10:36
asyncore.py	20.36 KB	-rw-r--r--	2022-02-06 21:16
asyncore.pyc	18.28 KB	-rw-r--r--	2022-03-20 10:36
atexit.py	1.67 KB	-rw-r--r--	2022-02-06 21:16
atexit.pyc	2.14 KB	-rw-r--r--	2022-03-20 10:36
audiodev.py	7.42 KB	-rw-r--r--	2022-02-06 21:16
audiodev.pyc	8.22 KB	-rw-r--r--	2022-03-20 10:36
base64.py	11.53 KB	-rwxr-xr-x	2022-02-06 21:16
base64.pyc	11 KB	-rw-r--r--	2022-03-20 10:36
bdb.py	21.21 KB	-rw-r--r--	2022-02-06 21:16
bdb.pyc	18.53 KB	-rw-r--r--	2022-03-20 10:36
binhex.py	14.35 KB	-rw-r--r--	2022-02-06 21:16
binhex.pyc	15 KB	-rw-r--r--	2022-03-20 10:36
bisect.py	2.53 KB	-rw-r--r--	2022-02-06 21:16
bisect.pyc	2.99 KB	-rw-r--r--	2022-03-20 10:36
cProfile.py	6.36 KB	-rwxr-xr-x	2022-02-06 21:16
cProfile.pyc	6.13 KB	-rw-r--r--	2022-03-20 10:36
calendar.py	22.84 KB	-rw-r--r--	2022-02-06 21:16
calendar.pyc	27.1 KB	-rw-r--r--	2022-03-20 10:36
cgi.py	34.35 KB	-rwxr-xr-x	2022-02-06 21:16
cgi.pyc	31.92 KB	-rw-r--r--	2022-03-20 10:36
cgitb.py	11.89 KB	-rw-r--r--	2022-02-06 21:16
cgitb.pyc	11.85 KB	-rw-r--r--	2022-03-20 10:36
chunk.py	5.29 KB	-rw-r--r--	2022-02-06 21:16
chunk.pyc	5.45 KB	-rw-r--r--	2022-03-20 10:36
cmd.py	14.67 KB	-rw-r--r--	2022-02-06 21:16
cmd.pyc	13.67 KB	-rw-r--r--	2022-03-20 10:36
code.py	9.95 KB	-rw-r--r--	2022-02-06 21:16
code.pyc	10.06 KB	-rw-r--r--	2022-03-20 10:36
codecs.py	35.25 KB	-rw-r--r--	2022-02-06 21:16
codecs.pyc	35.8 KB	-rw-r--r--	2022-03-20 10:36
codeop.py	5.86 KB	-rw-r--r--	2022-02-06 21:16
codeop.pyc	6.42 KB	-rw-r--r--	2022-03-20 10:36
collections.py	27.15 KB	-rw-r--r--	2022-02-06 21:16
collections.pyc	25.45 KB	-rw-r--r--	2022-03-20 10:36
colorsys.py	3.6 KB	-rw-r--r--	2022-02-06 21:16
colorsys.pyc	3.88 KB	-rw-r--r--	2022-03-20 10:36
commands.py	2.49 KB	-rw-r--r--	2022-02-06 21:16
commands.pyc	2.4 KB	-rw-r--r--	2022-03-20 10:36
compileall.py	7.58 KB	-rw-r--r--	2022-02-06 21:16
compileall.pyc	6.84 KB	-rw-r--r--	2022-03-20 10:36
contextlib.py	4.32 KB	-rw-r--r--	2022-02-06 21:16
contextlib.pyc	4.33 KB	-rw-r--r--	2022-03-20 10:36
cookielib.py	63.74 KB	-rw-r--r--	2022-02-06 21:16
cookielib.pyc	53.1 KB	-rw-r--r--	2022-03-20 10:36
copy.py	11.26 KB	-rw-r--r--	2022-02-06 21:16
copy.pyc	11.83 KB	-rw-r--r--	2022-03-20 10:36
copy_reg.py	6.64 KB	-rw-r--r--	2022-02-06 21:16
copy_reg.pyc	4.95 KB	-rw-r--r--	2022-03-20 10:36
csv.py	16.32 KB	-rw-r--r--	2022-02-06 21:16
csv.pyc	13.14 KB	-rw-r--r--	2022-03-20 10:36
dbhash.py	498 B	-rw-r--r--	2022-02-06 21:16
dbhash.pyc	714 B	-rw-r--r--	2022-03-20 10:36
decimal.py	216.73 KB	-rw-r--r--	2022-02-06 21:16
decimal.pyc	167.62 KB	-rw-r--r--	2022-03-20 10:36
difflib.py	80.4 KB	-rw-r--r--	2022-02-06 21:16
difflib.pyc	60.34 KB	-rw-r--r--	2022-03-20 10:36
dircache.py	1.1 KB	-rw-r--r--	2022-02-06 21:16
dircache.pyc	1.53 KB	-rw-r--r--	2022-03-20 10:36
dis.py	6.35 KB	-rw-r--r--	2022-02-06 21:16
dis.pyc	6.07 KB	-rw-r--r--	2022-03-20 10:36
doctest.py	102.75 KB	-rw-r--r--	2022-02-06 21:16
doctest.pyc	81.49 KB	-rw-r--r--	2022-03-20 10:36
dumbdbm.py	8.93 KB	-rw-r--r--	2022-02-06 21:16
dumbdbm.pyc	6.55 KB	-rw-r--r--	2022-03-20 10:36
dummy_thread.py	4.31 KB	-rw-r--r--	2022-02-06 21:16
dummy_thread.pyc	5.24 KB	-rw-r--r--	2022-03-20 10:36
dummy_threading.py	2.74 KB	-rw-r--r--	2022-02-06 21:16
dummy_threading.pyc	1.25 KB	-rw-r--r--	2022-03-20 10:36
filecmp.py	9.36 KB	-rw-r--r--	2022-02-06 21:16
filecmp.pyc	9.36 KB	-rw-r--r--	2022-03-20 10:36
fileinput.py	13.42 KB	-rw-r--r--	2022-02-06 21:16
fileinput.pyc	14.1 KB	-rw-r--r--	2022-03-20 10:36
fnmatch.py	3.24 KB	-rw-r--r--	2022-02-06 21:16
fnmatch.pyc	3.52 KB	-rw-r--r--	2022-03-20 10:36
formatter.py	14.56 KB	-rw-r--r--	2022-02-06 21:16
formatter.pyc	18.58 KB	-rw-r--r--	2022-03-20 10:36
fpformat.py	4.59 KB	-rw-r--r--	2022-02-06 21:16
fpformat.pyc	4.55 KB	-rw-r--r--	2022-03-20 10:36
fractions.py	21.87 KB	-rw-r--r--	2022-02-06 21:16
fractions.pyc	19.17 KB	-rw-r--r--	2022-03-20 10:36
ftplib.py	37.23 KB	-rw-r--r--	2022-02-06 21:16
ftplib.pyc	33.81 KB	-rw-r--r--	2022-03-20 10:36
functools.py	4.37 KB	-rw-r--r--	2022-02-06 21:16
functools.pyc	5.86 KB	-rw-r--r--	2022-03-20 10:36
genericpath.py	3.13 KB	-rw-r--r--	2022-02-06 21:16
genericpath.pyc	3.41 KB	-rw-r--r--	2022-03-20 10:36
getopt.py	7.15 KB	-rw-r--r--	2022-02-06 21:16
getopt.pyc	6.48 KB	-rw-r--r--	2022-03-20 10:36
getpass.py	5.43 KB	-rw-r--r--	2022-02-06 21:16
getpass.pyc	4.62 KB	-rw-r--r--	2022-03-20 10:36
gettext.py	22.06 KB	-rw-r--r--	2022-02-06 21:16
gettext.pyc	17.45 KB	-rw-r--r--	2022-03-20 10:36
glob.py	3.04 KB	-rw-r--r--	2022-02-06 21:16
glob.pyc	2.86 KB	-rw-r--r--	2022-03-20 10:36
gzip.py	18.58 KB	-rw-r--r--	2022-02-06 21:16
gzip.pyc	14.78 KB	-rw-r--r--	2022-03-20 10:36
hashlib.py	7.66 KB	-rw-r--r--	2022-02-06 21:16
hashlib.pyc	6.73 KB	-rw-r--r--	2022-03-20 10:36
heapq.py	17.87 KB	-rw-r--r--	2022-02-06 21:16
heapq.pyc	14.19 KB	-rw-r--r--	2022-03-20 10:36
hmac.py	4.48 KB	-rw-r--r--	2022-02-06 21:16
hmac.pyc	4.42 KB	-rw-r--r--	2022-03-20 10:36
htmlentitydefs.py	17.63 KB	-rw-r--r--	2022-02-06 21:16
htmlentitydefs.pyc	6.22 KB	-rw-r--r--	2022-03-20 10:36
htmllib.py	12.57 KB	-rw-r--r--	2022-02-06 21:16
htmllib.pyc	19.66 KB	-rw-r--r--	2022-03-20 10:36
httplib.py	50.26 KB	-rw-r--r--	2022-02-06 21:16
httplib.pyc	35.86 KB	-rw-r--r--	2022-03-20 10:36
ihooks.py	18.54 KB	-rw-r--r--	2022-02-06 21:16
ihooks.pyc	20.74 KB	-rw-r--r--	2022-03-20 10:36
imaplib.py	47.28 KB	-rw-r--r--	2022-02-06 21:16
imaplib.pyc	44.07 KB	-rw-r--r--	2022-03-20 10:36
imghdr.py	3.46 KB	-rw-r--r--	2022-02-06 21:16
imghdr.pyc	4.69 KB	-rw-r--r--	2022-03-20 10:36
imputil.py	25.16 KB	-rw-r--r--	2022-02-06 21:16
imputil.pyc	15.18 KB	-rw-r--r--	2022-03-20 10:36
inspect.py	41.62 KB	-rw-r--r--	2022-02-06 21:16
inspect.pyc	38.97 KB	-rw-r--r--	2022-03-20 10:36
io.py	3.24 KB	-rw-r--r--	2022-02-06 21:16
io.pyc	3.5 KB	-rw-r--r--	2022-03-20 10:36
keyword.py	1.95 KB	-rwxr-xr-x	2022-02-06 21:16
keyword.pyc	2.05 KB	-rw-r--r--	2022-03-20 10:36
linecache.py	3.93 KB	-rw-r--r--	2022-02-06 21:16
linecache.pyc	3.18 KB	-rw-r--r--	2022-03-20 10:36
locale.py	97.19 KB	-rw-r--r--	2022-02-06 21:16
locale.pyc	53.69 KB	-rw-r--r--	2022-03-20 10:36
macpath.py	6.14 KB	-rw-r--r--	2022-02-06 21:16
macpath.pyc	7.46 KB	-rw-r--r--	2022-03-20 10:36
macurl2path.py	2.67 KB	-rw-r--r--	2022-02-06 21:16
macurl2path.pyc	2.18 KB	-rw-r--r--	2022-03-20 10:36
mailbox.py	79.34 KB	-rw-r--r--	2022-02-06 21:16
mailbox.pyc	74.49 KB	-rw-r--r--	2022-03-20 10:36
mailcap.py	7.25 KB	-rw-r--r--	2022-02-06 21:16
mailcap.pyc	6.89 KB	-rw-r--r--	2022-03-20 10:36
markupbase.py	14.3 KB	-rw-r--r--	2022-02-06 21:16
markupbase.pyc	9.02 KB	-rw-r--r--	2022-03-20 10:36
md5.py	358 B	-rw-r--r--	2022-02-06 21:16
md5.pyc	376 B	-rw-r--r--	2022-03-20 10:36
mhlib.py	32.65 KB	-rw-r--r--	2022-02-06 21:16
mhlib.pyc	32.83 KB	-rw-r--r--	2022-03-20 10:36
mimetools.py	7 KB	-rw-r--r--	2022-02-06 21:16
mimetools.pyc	7.97 KB	-rw-r--r--	2022-03-20 10:36
mimetypes.py	20.45 KB	-rw-r--r--	2022-02-06 21:16
mimetypes.pyc	17.96 KB	-rw-r--r--	2022-03-20 10:36
mimify.py	14.67 KB	-rwxr-xr-x	2022-02-06 21:16
mimify.pyc	11.69 KB	-rw-r--r--	2022-03-20 10:36
modulefinder.py	23.89 KB	-rw-r--r--	2022-02-06 21:16
modulefinder.pyc	18.61 KB	-rw-r--r--	2022-03-20 10:36
multifile.py	4.71 KB	-rw-r--r--	2022-02-06 21:16
multifile.pyc	5.26 KB	-rw-r--r--	2022-03-20 10:36
mutex.py	1.83 KB	-rw-r--r--	2022-02-06 21:16
mutex.pyc	2.44 KB	-rw-r--r--	2022-03-20 10:36
netrc.py	5.73 KB	-rw-r--r--	2022-02-06 21:16
netrc.pyc	4.54 KB	-rw-r--r--	2022-03-20 10:36
new.py	610 B	-rw-r--r--	2022-02-06 21:16
new.pyc	860 B	-rw-r--r--	2022-03-20 10:36
nntplib.py	20.97 KB	-rw-r--r--	2022-02-06 21:16
nntplib.pyc	20.46 KB	-rw-r--r--	2022-03-20 10:36
ntpath.py	18.97 KB	-rw-r--r--	2022-02-06 21:16
ntpath.pyc	12.78 KB	-rw-r--r--	2022-03-20 10:36
nturl2path.py	2.36 KB	-rw-r--r--	2022-02-06 21:16
nturl2path.pyc	1.77 KB	-rw-r--r--	2022-03-20 10:36
numbers.py	10.08 KB	-rw-r--r--	2022-02-06 21:16
numbers.pyc	13.56 KB	-rw-r--r--	2022-03-20 10:36
opcode.py	5.35 KB	-rw-r--r--	2022-02-06 21:16
opcode.pyc	5.99 KB	-rw-r--r--	2022-03-20 10:36
optparse.py	59.77 KB	-rw-r--r--	2022-02-06 21:16
optparse.pyc	52.36 KB	-rw-r--r--	2022-03-20 10:36
os.py	25.3 KB	-rw-r--r--	2022-02-06 21:16
os.pyc	24.98 KB	-rw-r--r--	2022-03-20 10:36
os2emxpath.py	4.53 KB	-rw-r--r--	2022-02-06 21:16
os2emxpath.pyc	4.4 KB	-rw-r--r--	2022-03-20 10:36
pdb.doc	7.73 KB	-rw-r--r--	2022-02-06 21:16
pdb.py	45.02 KB	-rwxr-xr-x	2022-02-06 21:16
pdb.pyc	42.42 KB	-rw-r--r--	2022-03-20 10:36
pickle.py	44.42 KB	-rw-r--r--	2022-02-06 21:16
pickle.pyc	37.45 KB	-rw-r--r--	2022-03-20 10:36
pickletools.py	72.79 KB	-rw-r--r--	2022-02-06 21:16
pickletools.pyc	55.64 KB	-rw-r--r--	2022-03-20 10:36
pipes.py	9.36 KB	-rw-r--r--	2022-02-06 21:16
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Rename

# -*- Mode: Python -*-
#   Id: asyncore.py,v 2.51 2000/09/07 22:29:26 rushing Exp
#   Author: Sam Rushing <rushing@nightmare.com>

# ======================================================================
# Copyright 1996 by Sam Rushing
#
#                         All Rights Reserved
#
# Permission to use, copy, modify, and distribute this software and
# its documentation for any purpose and without fee is hereby
# granted, provided that the above copyright notice appear in all
# copies and that both that copyright notice and this permission
# notice appear in supporting documentation, and that the name of Sam
# Rushing not be used in advertising or publicity pertaining to
# distribution of the software without specific, written prior
# permission.
#
# SAM RUSHING DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
# INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN
# NO EVENT SHALL SAM RUSHING BE LIABLE FOR ANY SPECIAL, INDIRECT OR
# CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
# OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
# NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
# CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
# ======================================================================

"""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.
"""

import select
import socket
import sys
import time
import warnings

import os
from errno import EALREADY, EINPROGRESS, EWOULDBLOCK, ECONNRESET, EINVAL, \
     ENOTCONN, ESHUTDOWN, EINTR, EISCONN, EBADF, ECONNABORTED, EPIPE, EAGAIN, \
     errorcode

_DISCONNECTED = frozenset((ECONNRESET, ENOTCONN, ESHUTDOWN, ECONNABORTED, EPIPE,
                           EBADF))

try:
    socket_map
except NameError:
    socket_map = {}

def _strerror(err):
    try:
        return os.strerror(err)
    except (ValueError, OverflowError, NameError):
        if err in errorcode:
            return errorcode[err]
        return "Unknown error %s" %err

class ExitNow(Exception):
    pass

_reraised_exceptions = (ExitNow, KeyboardInterrupt, SystemExit)

def read(obj):
    try:
        obj.handle_read_event()
    except _reraised_exceptions:
        raise
    except:
        obj.handle_error()

def write(obj):
    try:
        obj.handle_write_event()
    except _reraised_exceptions:
        raise
    except:
        obj.handle_error()

def _exception(obj):
    try:
        obj.handle_expt_event()
    except _reraised_exceptions:
        raise
    except:
        obj.handle_error()

def readwrite(obj, flags):
    try:
        if flags & select.POLLIN:
            obj.handle_read_event()
        if flags & select.POLLOUT:
            obj.handle_write_event()
        if flags & select.POLLPRI:
            obj.handle_expt_event()
        if flags & (select.POLLHUP | select.POLLERR | select.POLLNVAL):
            obj.handle_close()
    except socket.error, e:
        if e.args[0] not in _DISCONNECTED:
            obj.handle_error()
        else:
            obj.handle_close()
    except _reraised_exceptions:
        raise
    except:
        obj.handle_error()

def poll(timeout=0.0, map=None):
    if map is None:
        map = socket_map
    if map:
        r = []; w = []; e = []
        for fd, obj in map.items():
            is_r = obj.readable()
            is_w = obj.writable()
            if is_r:
                r.append(fd)
            # accepting sockets should not be writable
            if is_w and not obj.accepting:
                w.append(fd)
            if is_r or is_w:
                e.append(fd)
        if [] == r == w == e:
            time.sleep(timeout)
            return

try:
            r, w, e = select.select(r, w, e, timeout)
        except select.error, err:
            if err.args[0] != EINTR:
                raise
            else:
                return

for fd in r:
            obj = map.get(fd)
            if obj is None:
                continue
            read(obj)

for fd in w:
            obj = map.get(fd)
            if obj is None:
                continue
            write(obj)

for fd in e:
            obj = map.get(fd)
            if obj is None:
                continue
            _exception(obj)

def poll2(timeout=0.0, map=None):
    # Use the poll() support added to the select module in Python 2.0
    if map is None:
        map = socket_map
    if timeout is not None:
        # timeout is in milliseconds
        timeout = int(timeout*1000)
    pollster = select.poll()
    if map:
        for fd, obj in map.items():
            flags = 0
            if obj.readable():
                flags |= select.POLLIN | select.POLLPRI
            # accepting sockets should not be writable
            if obj.writable() and not obj.accepting:
                flags |= select.POLLOUT
            if flags:
                # Only check for exceptions if object was either readable
                # or writable.
                flags |= select.POLLERR | select.POLLHUP | select.POLLNVAL
                pollster.register(fd, flags)
        try:
            r = pollster.poll(timeout)
        except select.error, err:
            if err.args[0] != EINTR:
                raise
            r = []
        for fd, flags in r:
            obj = map.get(fd)
            if obj is None:
                continue
            readwrite(obj, flags)

poll3 = poll2                           # Alias for backward compatibility

def loop(timeout=30.0, use_poll=False, map=None, count=None):
    if map is None:
        map = socket_map

if use_poll and hasattr(select, 'poll'):
        poll_fun = poll2
    else:
        poll_fun = poll

if count is None:
        while map:
            poll_fun(timeout, map)

else:
        while map and count > 0:
            poll_fun(timeout, map)
            count = count - 1

class dispatcher:

debug = False
    connected = False
    accepting = False
    connecting = False
    closing = False
    addr = None
    ignore_log_types = frozenset(['warning'])

def __init__(self, sock=None, map=None):
        if map is None:
            self._map = socket_map
        else:
            self._map = map

self._fileno = None

if sock:
            # Set to nonblocking just to make sure for cases where we
            # get a socket from a blocking source.
            sock.setblocking(0)
            self.set_socket(sock, map)
            self.connected = True
            # The constructor no longer requires that the socket
            # passed be connected.
            try:
                self.addr = sock.getpeername()
            except socket.error, err:
                if err.args[0] in (ENOTCONN, EINVAL):
                    # To handle the case where we got an unconnected
                    # socket.
                    self.connected = False
                else:
                    # The socket is broken in some unknown way, alert
                    # the user and remove it from the map (to prevent
                    # polling of broken sockets).
                    self.del_channel(map)
                    raise
        else:
            self.socket = None

def __repr__(self):
        status = [self.__class__.__module__+"."+self.__class__.__name__]
        if self.accepting and self.addr:
            status.append('listening')
        elif self.connected:
            status.append('connected')
        if self.addr is not None:
            try:
                status.append('%s:%d' % self.addr)
            except TypeError:
                status.append(repr(self.addr))
        return '<%s at %#x>' % (' '.join(status), id(self))

__str__ = __repr__

def add_channel(self, map=None):
        #self.log_info('adding channel %s' % self)
        if map is None:
            map = self._map
        map[self._fileno] = self

def del_channel(self, map=None):
        fd = self._fileno
        if map is None:
            map = self._map
        if fd in map:
            #self.log_info('closing channel %d:%s' % (fd, self))
            del map[fd]
        self._fileno = None

def create_socket(self, family, type):
        self.family_and_type = family, type
        sock = socket.socket(family, type)
        sock.setblocking(0)
        self.set_socket(sock)

def set_socket(self, sock, map=None):
        self.socket = sock
##        self.__dict__['socket'] = sock
        self._fileno = sock.fileno()
        self.add_channel(map)

def set_reuse_addr(self):
        # try to re-use a server port if possible
        try:
            self.socket.setsockopt(
                socket.SOL_SOCKET, socket.SO_REUSEADDR,
                self.socket.getsockopt(socket.SOL_SOCKET,
                                       socket.SO_REUSEADDR) | 1
                )
        except socket.error:
            pass

# ==================================================
    # predicates for select()
    # these are used as filters for the lists of sockets
    # to pass to select().
    # ==================================================

def readable(self):
        return True

def writable(self):
        return True

# ==================================================
    # socket object methods.
    # ==================================================

def listen(self, num):
        self.accepting = True
        if os.name == 'nt' and num > 5:
            num = 5
        return self.socket.listen(num)

def bind(self, addr):
        self.addr = addr
        return self.socket.bind(addr)

def connect(self, address):
        self.connected = False
        self.connecting = True
        err = self.socket.connect_ex(address)
        if err in (EINPROGRESS, EALREADY, EWOULDBLOCK) \
        or err == EINVAL and os.name in ('nt', 'ce'):
            self.addr = address
            return
        if err in (0, EISCONN):
            self.addr = address
            self.handle_connect_event()
        else:
            raise socket.error(err, errorcode[err])

def accept(self):
        # XXX can return either an address pair or None
        try:
            conn, addr = self.socket.accept()
        except TypeError:
            return None
        except socket.error as why:
            if why.args[0] in (EWOULDBLOCK, ECONNABORTED, EAGAIN):
                return None
            else:
                raise
        else:
            return conn, addr

def send(self, data):
        try:
            result = self.socket.send(data)
            return result
        except socket.error, why:
            if why.args[0] == EWOULDBLOCK:
                return 0
            elif why.args[0] in _DISCONNECTED:
                self.handle_close()
                return 0
            else:
                raise

def recv(self, buffer_size):
        try:
            data = self.socket.recv(buffer_size)
            if not data:
                # a closed connection is indicated by signaling
                # a read condition, and having recv() return 0.
                self.handle_close()
                return ''
            else:
                return data
        except socket.error, why:
            # winsock sometimes raises ENOTCONN
            if why.args[0] in _DISCONNECTED:
                self.handle_close()
                return ''
            else:
                raise

def close(self):
        self.connected = False
        self.accepting = False
        self.connecting = False
        self.del_channel()
        try:
            self.socket.close()
        except socket.error, why:
            if why.args[0] not in (ENOTCONN, EBADF):
                raise

# cheap inheritance, used to pass all other attribute
    # references to the underlying socket object.
    def __getattr__(self, attr):
        try:
            retattr = getattr(self.socket, attr)
        except AttributeError:
            raise AttributeError("%s instance has no attribute '%s'"
                                 %(self.__class__.__name__, attr))
        else:
            msg = "%(me)s.%(attr)s is deprecated. Use %(me)s.socket.%(attr)s " \
                  "instead." % {'me': self.__class__.__name__, 'attr':attr}
            warnings.warn(msg, DeprecationWarning, stacklevel=2)
            return retattr

# log and log_info may be overridden to provide more sophisticated
    # logging and warning methods. In general, log is for 'hit' logging
    # and 'log_info' is for informational, warning and error logging.

def log(self, message):
        sys.stderr.write('log: %s\n' % str(message))

def log_info(self, message, type='info'):
        if type not in self.ignore_log_types:
            print '%s: %s' % (type, message)

def handle_read_event(self):
        if self.accepting:
            # accepting sockets are never connected, they "spawn" new
            # sockets that are connected
            self.handle_accept()
        elif not self.connected:
            if self.connecting:
                self.handle_connect_event()
            self.handle_read()
        else:
            self.handle_read()

def handle_connect_event(self):
        err = self.socket.getsockopt(socket.SOL_SOCKET, socket.SO_ERROR)
        if err != 0:
            raise socket.error(err, _strerror(err))
        self.handle_connect()
        self.connected = True
        self.connecting = False

def handle_write_event(self):
        if self.accepting:
            # Accepting sockets shouldn't get a write event.
            # We will pretend it didn't happen.
            return

if not self.connected:
            if self.connecting:
                self.handle_connect_event()
        self.handle_write()

def handle_expt_event(self):
        # handle_expt_event() is called if there might be an error on the
        # socket, or if there is OOB data
        # check for the error condition first
        err = self.socket.getsockopt(socket.SOL_SOCKET, socket.SO_ERROR)
        if err != 0:
            # we can get here when select.select() says that there is an
            # exceptional condition on the socket
            # since there is an error, we'll go ahead and close the socket
            # like we would in a subclassed handle_read() that received no
            # data
            self.handle_close()
        else:
            self.handle_expt()

def handle_error(self):
        nil, t, v, tbinfo = compact_traceback()

# sometimes a user repr method will crash.
        try:
            self_repr = repr(self)
        except:
            self_repr = '<__repr__(self) failed for object at %0x>' % id(self)

self.log_info(
            'uncaptured python exception, closing channel %s (%s:%s %s)' % (
                self_repr,
                t,
                v,
                tbinfo
                ),
            'error'
            )
        self.handle_close()

def handle_expt(self):
        self.log_info('unhandled incoming priority event', 'warning')

def handle_read(self):
        self.log_info('unhandled read event', 'warning')

def handle_write(self):
        self.log_info('unhandled write event', 'warning')

def handle_connect(self):
        self.log_info('unhandled connect event', 'warning')

def handle_accept(self):
        self.log_info('unhandled accept event', 'warning')

def handle_close(self):
        self.log_info('unhandled close event', 'warning')
        self.close()

# ---------------------------------------------------------------------------
# adds simple buffered output capability, useful for simple clients.
# [for more sophisticated usage use asynchat.async_chat]
# ---------------------------------------------------------------------------

class dispatcher_with_send(dispatcher):

def __init__(self, sock=None, map=None):
        dispatcher.__init__(self, sock, map)
        self.out_buffer = ''

def initiate_send(self):
        num_sent = 0
        num_sent = dispatcher.send(self, self.out_buffer[:512])
        self.out_buffer = self.out_buffer[num_sent:]

def handle_write(self):
        self.initiate_send()

def writable(self):
        return (not self.connected) or len(self.out_buffer)

def send(self, data):
        if self.debug:
            self.log_info('sending %s' % repr(data))
        self.out_buffer = self.out_buffer + data
        self.initiate_send()

# ---------------------------------------------------------------------------
# used for debugging.
# ---------------------------------------------------------------------------

def compact_traceback():
    t, v, tb = sys.exc_info()
    tbinfo = []
    if not tb: # Must have a traceback
        raise AssertionError("traceback does not exist")
    while tb:
        tbinfo.append((
            tb.tb_frame.f_code.co_filename,
            tb.tb_frame.f_code.co_name,
            str(tb.tb_lineno)
            ))
        tb = tb.tb_next

# just to be safe
    del tb

file, function, line = tbinfo[-1]
    info = ' '.join(['[%s|%s|%s]' % x for x in tbinfo])
    return (file, function, line), t, v, info

def close_all(map=None, ignore_all=False):
    if map is None:
        map = socket_map
    for x in map.values():
        try:
            x.close()
        except OSError, x:
            if x.args[0] == EBADF:
                pass
            elif not ignore_all:
                raise
        except _reraised_exceptions:
            raise
        except:
            if not ignore_all:
                raise
    map.clear()

# Asynchronous File I/O:
#
# After a little research (reading man pages on various unixen, and
# digging through the linux kernel), I've determined that select()
# isn't meant for doing asynchronous file i/o.
# Heartening, though - reading linux/mm/filemap.c shows that linux
# supports asynchronous read-ahead.  So _MOST_ of the time, the data
# will be sitting in memory for us already when we go to read it.
#
# What other OS's (besides NT) support async file i/o?  [VMS?]
#
# Regardless, this is useful for pipes, and stdin/stdout...

if os.name == 'posix':
    import fcntl

class file_wrapper:
        # Here we override just enough to make a file
        # look like a socket for the purposes of asyncore.
        # The passed fd is automatically os.dup()'d

def __init__(self, fd):
            self.fd = os.dup(fd)

def recv(self, *args):
            return os.read(self.fd, *args)

def send(self, *args):
            return os.write(self.fd, *args)

def getsockopt(self, level, optname, buflen=None):
            if (level == socket.SOL_SOCKET and
                optname == socket.SO_ERROR and
                not buflen):
                return 0
            raise NotImplementedError("Only asyncore specific behaviour "
                                      "implemented.")

read = recv
        write = send

def close(self):
            os.close(self.fd)

def fileno(self):
            return self.fd

class file_dispatcher(dispatcher):

def __init__(self, fd, map=None):
            dispatcher.__init__(self, None, map)
            self.connected = True
            try:
                fd = fd.fileno()
            except AttributeError:
                pass
            self.set_file(fd)
            # set it to non-blocking mode
            flags = fcntl.fcntl(fd, fcntl.F_GETFL, 0)
            flags = flags | os.O_NONBLOCK
            fcntl.fcntl(fd, fcntl.F_SETFL, flags)

def set_file(self, fd):
            self.socket = file_wrapper(fd)
            self._fileno = self.socket.fileno()
            self.add_channel()