def Worker(client_socket, addr):
print >>sys.stderr, 'info: connection from %r, handled by %r' % (
addr, greenlet.getcurrent())
f = client_socket.makefile()
# Read HTTP request.
line1 = None
while True:
line = f.readline().rstrip('\r\n')
if not line: # Empty line, end of HTTP request.
break
if line1 is None:
line1 = line
# Parse HTTP request.
# Please note that an assertion here doesn't abort the server.
items = line1.split(' ')
assert 3 == len(items)
assert items[2] in ('HTTP/1.0', 'HTTP/1.1')
assert items[0] == 'GET'
assert items[1].startswith('/')
# This is to demonstrate the error reporting and recovery behavior of gevent:
# We get an error message like this, and the process execution continues:
#
# Traceback (most recent call last):
# File "/usr/local/lib/python2.6/site-packages/gevent/greenlet.py", line 388, in run
# result = self._run(*self.args, **self.kwargs)
# File "./s2.py", line 137, in Worker
# assert 'bad' not in items[1]
# AssertionError
# <Greenlet at 0xb71acbecL: Worker(<socket at 0xb747668cL fileno=10 sock=127.0.0.1:80, ('127.0.0.1', 55196))> failed with AssertionError
assert 'bad' not in items[1]
if 'sysexit' in items[1]:
print >>sys.stderr, 'info: exiting with SystemExit'
#sys.exit() # Doesn't work, gevent.core.__event_handler catches it.
gevent.hub.MAIN.throw(SystemExit)
if 'exit' in items[1]:
print >>sys.stderr, 'info: exiting with throw'
gevent.hub.MAIN.throw()
try:
num = int(items[1][1:])
except ValueError:
num = None
if 'slow' in items[1]:
gevent.hub.sleep(5)
# Write HTTP response.
if num is None:
f.write('HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n')
f.write('<a href="/0">start at 0</a><p>Hello, World!\n')
else:
next_num = Lprng(num).next()
f.write('HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n')
f.write('<a href="/%d">continue with %d</a>\n' %
(next_num, next_num))
def Worker(client_socket, addr):
print >> sys.stderr, 'info: connection from %r, handled by %r' % (
addr, greenlet.getcurrent())
f = client_socket.makefile()
# Read HTTP request.
line1 = None
while True:
line = f.readline().rstrip('\r\n')
if not line: # Empty line, end of HTTP request.
break
if line1 is None:
line1 = line
# Parse HTTP request.
# Please note that an assertion here doesn't abort the server.
items = line1.split(' ')
assert 3 == len(items)
assert items[2] in ('HTTP/1.0', 'HTTP/1.1')
assert items[0] == 'GET'
assert items[1].startswith('/')
# This is to demonstrate the error reporting and recovery behavior of gevent:
# We get an error message like this, and the process execution continues:
#
# Traceback (most recent call last):
# File "/usr/local/lib/python2.6/site-packages/gevent/greenlet.py", line 388, in run
# result = self._run(*self.args, **self.kwargs)
# File "./s2.py", line 137, in Worker
# assert 'bad' not in items[1]
# AssertionError
# <Greenlet at 0xb71acbecL: Worker(<socket at 0xb747668cL fileno=10 sock=127.0.0.1:80, ('127.0.0.1', 55196))> failed with AssertionError
assert 'bad' not in items[1]
if 'sysexit' in items[1]:
print >> sys.stderr, 'info: exiting with SystemExit'
#sys.exit() # Doesn't work, gevent.core.__event_handler catches it.
gevent.hub.MAIN.throw(SystemExit)
if 'exit' in items[1]:
print >> sys.stderr, 'info: exiting with throw'
gevent.hub.MAIN.throw()
try:
num = int(items[1][1:])
except ValueError:
num = None
if 'slow' in items[1]:
gevent.hub.sleep(5)
# Write HTTP response.
if num is None:
f.write('HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n')
f.write('<a href="/0">start at 0</a><p>Hello, World!\n')
else:
next_num = Lprng(num).next()
f.write('HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n')
f.write('<a href="/%d">continue with %d</a>\n' % (next_num, next_num))
def GeventListener(server_socket):
# Please note that exceptions raised here will be printed and then ignored
# by the gevent.hub main loop.
print >> sys.stderr, ('info: accepting connections in %r' %
greenlet.getcurrent())
while True:
client_socket, addr = server_socket.accept()
gevent.spawn(Worker, client_socket, addr)
# Equally good:
#gevent.hub.spawn_raw(Worker, client_socket, addr)
client_socket = addr = None # Save memory.
def GeventListener(server_socket):
# Please note that exceptions raised here will be printed and then ignored
# by the gevent.hub main loop.
print >>sys.stderr, (
'info: accepting connections in %r' % greenlet.getcurrent())
while True:
client_socket, addr = server_socket.accept()
gevent.spawn(Worker, client_socket, addr)
# Equally good:
#gevent.hub.spawn_raw(Worker, client_socket, addr)
client_socket = addr = None # Save memory.
