def custom_feeder(input, coro=None):
def write_proc(fin, pipe, coro=None):
while True:
data = yield os.read(fin.fileno(), 8 * 1024)
if not data:
break
n = yield pipe.write(data, full=True)
assert n == len(data)
fin.close()
pipe.stdin.close()
def read_proc(pipe, coro=None):
# output from sha1sum is small, so read until EOF
data = yield pipe.stdout.read()
pipe.stdout.close()
raise StopIteration(data)
if platform.system() == 'Windows':
# asyncfile.Popen must be used instead of subprocess.Popen
pipe = asyncfile.Popen([r'\cygwin64\bin\sha1sum.exe'],
stdin=subprocess.PIPE,
stdout=subprocess.PIPE)
else:
pipe = subprocess.Popen(['sha1sum'],
stdin=subprocess.PIPE,
stdout=subprocess.PIPE)
async_pipe = asyncfile.AsyncPipe(pipe)
reader = asyncoro.Coro(read_proc, async_pipe)
writer = asyncoro.Coro(write_proc, open(input), async_pipe)
stdout = yield reader.finish()
print(' feeder sha1sum: %s' % stdout)
def client_proc(coro=None):
channel = asyncoro.Channel('sum_prod')
sum_coro = asyncoro.Coro(seqsum)
prod_coro = asyncoro.Coro(seqprod)
yield channel.subscribe(sum_coro)
yield channel.subscribe(prod_coro)
for x in range(4):
r = random.uniform(0.5, 3)
channel.send(r)
print('sent %f' % r)
channel.send(None)
yield channel.unsubscribe(sum_coro)
yield channel.unsubscribe(prod_coro)
def server(host, port, coro=None):
coro.set_daemon()
sock = asyncoro.AsyncSocket(socket.socket(socket.AF_INET, socket.SOCK_STREAM))
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
sock.bind((host, port))
sock.listen(5000)
while True:
conn, addr = yield sock.accept()
asyncoro.Coro(process, conn)
#!/usr/bin/env python
# program for creating coroutines (asynchronous concurrent
# programming); see http://asyncoro.sourceforge.net/tutorial.html for
# details.
import sys, random, time
if sys.version_info.major >= 3:
import asyncoro3 as asyncoro
else:
import asyncoro
def coro_proc(n, coro=None):
s = random.uniform(0.5, 3)
print('%f: coroutine %d sleeping for %f seconds' % (time.time(), n, s))
yield coro.sleep(s)
print('%f: coroutine %d terminating' % (time.time(), n))
for i in range(10):
asyncoro.Coro(coro_proc, i)
# output from sha1sum is small, so read until EOF
data = yield pipe.stdout.read()
pipe.stdout.close()
raise StopIteration(data)
if platform.system() == 'Windows':
# asyncfile.Popen must be used instead of subprocess.Popen
pipe = asyncfile.Popen([r'\cygwin64\bin\sha1sum.exe'],
stdin=subprocess.PIPE,
stdout=subprocess.PIPE)
else:
pipe = subprocess.Popen(['sha1sum'],
stdin=subprocess.PIPE,
stdout=subprocess.PIPE)
async_pipe = asyncfile.AsyncPipe(pipe)
reader = asyncoro.Coro(read_proc, async_pipe)
writer = asyncoro.Coro(write_proc, open(input), async_pipe)
stdout = yield reader.finish()
print(' feeder sha1sum: %s' % stdout)
# asyncoro.logger.setLevel(logging.DEBUG)
# simpler version using 'communicate'
coro = asyncoro.Coro(communicate, sys.argv[1])
coro.value() # wait for it to finish
# alternate version with custom read and write processes
asyncoro.Coro(custom_feeder, sys.argv[1])
import asyncoro
def process(conn, coro=None):
msg = "HTTP/1.0 200 OK\r\nContent-Length: 5\r\n\r\nPong!\r\n"
if sys.version_info.major >= 3:
msg = bytes(msg, 'ascii')
yield conn.sendall(msg)
conn.close()
def server(host, port, coro=None):
coro.set_daemon()
sock = asyncoro.AsyncSocket(socket.socket(socket.AF_INET, socket.SOCK_STREAM))
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
sock.bind((host, port))
sock.listen(5000)
while True:
conn, addr = yield sock.accept()
asyncoro.Coro(process, conn)
if __name__ == '__main__':
asyncoro.Coro(server, '127.0.0.1', 8010)
while True:
try:
cmd = sys.stdin.readline().strip().lower()
if not cmd or cmd == 'exit' or cmd == 'quit':
break
except KeyboardInterrupt:
break
#!/usr/bin/env python
# client and server coroutines communicating with message passing
# (asynchronous concurrent programming);
# see http://asyncoro.sourceforge.net/tutorial.html for details.
import sys, random
if sys.version_info.major >= 3:
import asyncoro3 as asyncoro
else:
import asyncoro
def server_proc(coro=None):
coro.set_daemon()
while True:
msg = yield coro.receive()
print('processing %s' % (msg))
msg_id = 0
def client_proc(server, n, coro=None):
global msg_id
for x in range(3):
yield coro.suspend(random.uniform(0.5, 3))
msg_id += 1
server.send('%d: %d / %d' % (msg_id, n, x))
server = asyncoro.Coro(server_proc)
for i in range(10):
asyncoro.Coro(client_proc, server, i)
# each client sends 3 messages
for j in range(2):
server.send((i, j))
server.send((i, None))
def server_proc(n, coro=None):
k = 0
while True:
i, j = yield coro.receive()
if j is None:
# client 'i' is done
k += 1
if k == n:
break
if __name__ == '__main__':
n = int(sys.argv[1]) if len(sys.argv) > 1 else 10000
start = time.time()
server = asyncoro.Coro(server_proc, n)
# create given number of client coroutines
for i in range(n):
asyncoro.Coro(client_proc, i, server)
print('creating %d coroutines took %.3f sec' % (n, time.time() - start))
proc_start = time.time()
# wait for server to finish
server.value()
print('messaging took %.3f sec' % (time.time() - proc_start))
print('sum: %f' % result)
def seqprod(coro=None):
# compute product of numbers received over channel
result = 1
while True:
msg = yield coro.receive()
if msg is None:
break
result *= msg
print('prod: %f' % result)
def client_proc(coro=None):
channel = asyncoro.Channel('sum_prod')
sum_coro = asyncoro.Coro(seqsum)
prod_coro = asyncoro.Coro(seqprod)
yield channel.subscribe(sum_coro)
yield channel.subscribe(prod_coro)
for x in range(4):
r = random.uniform(0.5, 3)
channel.send(r)
print('sent %f' % r)
channel.send(None)
yield channel.unsubscribe(sum_coro)
yield channel.unsubscribe(prod_coro)
asyncoro.Coro(client_proc)
import asyncoro
def server_proc(n, sock, coro=None):
for i in range(n):
msg, addr = yield sock.recvfrom(1024)
print('Received "%s" from %s:%s' % (msg, addr[0], addr[1]))
sock.close()
def client_proc(host, port, coro=None):
sock = asyncoro.AsyncSocket(
socket.socket(socket.AF_INET, socket.SOCK_DGRAM))
msg = 'client socket: %s' % (sock.fileno())
if sys.version_info.major >= 3:
msg = bytes(msg, 'ascii')
yield sock.sendto(msg, (host, port))
sock.close()
if __name__ == '__main__':
sock = asyncoro.AsyncSocket(
socket.socket(socket.AF_INET, socket.SOCK_DGRAM))
sock.bind(('127.0.0.1', 0))
host, port = sock.getsockname()
n = 50
server_coro = asyncoro.Coro(server_proc, n, sock)
for i in range(n):
asyncoro.Coro(client_proc, host, port)
#!/usr/bin/env python
# client program for sending requests to server (tut_sock_server.py)
# with sockets (asynchronous network programming);
# see http://asyncoro.sourceforge.net/tutorial.html for details.
import sys, socket, random
if sys.version_info.major >= 3:
import asyncoro3 as asyncoro
else:
import asyncoro
def client(host, port, n, coro=None):
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock = asyncoro.AsyncSocket(sock)
yield sock.connect((host, port))
msg = '%d: ' % n + '-' * random.randint(100,300) + '/'
if sys.version_info.major >= 3:
msg = bytes(msg, 'ascii')
yield sock.sendall(msg)
sock.close()
# run 10 client coroutines
for n in range(10):
asyncoro.Coro(client, '127.0.0.1', 8010, n)
break
if not line:
break
print('%s' % line),
nlines += 1
print('lines: %s' % nlines)
raise StopIteration(nlines)
# asyncoro.logger.setLevel(logging.DEBUG)
if platform.system() == 'Windows':
# asyncfile.Popen must be used instead of subprocess.Popen
p1 = asyncfile.Popen([r'\cygwin64\bin\grep.exe', '-i', 'error'],
stdin=subprocess.PIPE, stdout=subprocess.PIPE)
p2 = asyncfile.Popen([r'\cygwin64\bin\wc.exe'], stdin=p1.stdout, stdout=subprocess.PIPE)
async_pipe = asyncfile.AsyncPipe(p1, p2)
asyncoro.Coro(writer, async_pipe, r'\tmp\grep.inp')
asyncoro.Coro(line_reader, async_pipe)
# in Windows child process may not terminate when input is closed -
# so terminate it explicitly when pipe is done with:
# p1.terminate()
# p2.terminate()
else:
p1 = subprocess.Popen(['grep', '-i', 'error'], stdin=subprocess.PIPE, stdout=subprocess.PIPE)
p2 = subprocess.Popen(['wc'], stdin=p1.stdout, stdout=subprocess.PIPE)
async_pipe = asyncfile.AsyncPipe(p1, p2)
asyncoro.Coro(writer, async_pipe, '/var/log/syslog')
asyncoro.Coro(line_reader, async_pipe)
# alternate example:
# p1 = subprocess.Popen(['tail', '-f', '/var/log/kern.log'], stdin=None, stdout=subprocess.PIPE)
def server_proc(conn, coro=None):
# conn is a synchronous socket (as it is obtained from synchronous
# 'accept'); it's file-descriptor is converted to asynchronous
# file to read data from that
afd = asyncfile.AsyncFile(conn)
csum = hashlib.sha1()
nlines = 0
while True:
# read lines from data
line = yield afd.readline()
if not line:
break
csum.update(line)
nlines += 1
afd.close()
print('server csum: %s' % (csum.hexdigest()))
print('lines: %s' % (nlines))
asyncoro.logger.setLevel(logging.DEBUG)
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.bind(('localhost', 0))
sock.listen(5)
host, port = sock.getsockname()
print('host: %s, port: %s' % (host, port))
asyncoro.Coro(client_proc, host, port, sys.argv[1])
conn, addr = sock.accept()
asyncoro.Coro(server_proc, conn)
