def run_writer3(reactor, shmfile, size=1024):
print("run_writer", reactor.__class__, shmfile)
if False:
if os.path.exists(shmfile):
print("removing existing file")
os.remove(shmfile)
with open(shmfile, 'wb+') as fd:
fd.write(DATA)
fd.truncate(size)
fd.flush()
return succeed(None)
with open(shmfile, 'rw+') as fd:
# m = cmmap.mmap(prot=cmmap.PROT_READ, length=len(data), flags=cmmap.MAP_SHARED, fd=f.fileno())
# shm = cmmap.mmap(prot=cmmap.PROT_WRITE, length=size, flags=cmmap.MAP_SHARED, fd=fd.fileno(), buffer=False)
# shm = cmmap.mmap(prot=cmmap.PROT_WRITE, length=size, flags=cmmap.MAP_SHARED, fd=fd.fileno(), buffer=True)
shm = cmmap.mmap(prot=cmmap.PROT_READ|cmmap.PROT_WRITE, flags=cmmap.MAP_SHARED, length=size, fd=fd.fileno(), buffer=True)
print(shm, type(shm), len(shm))
#shm[0:len(DATA)] = DATA
print(binascii.hexlify(shm[0:10]))
#msg = ffi.cast("wamp_msg_subscribed_t*", shm)
#print fd, shm, type(shm), msg, type(msg)
#msg.request = 23
#msg.subscription = 666
#print("msg: {} {}".format(msg.request, msg.subscription))
return succeed(None)
def test_anonymous_private():
data = 'foobarding'
m = cmmap.mmap(length=10,
prot=cmmap.PROT_READ|cmmap.PROT_WRITE,
flags=cmmap.MAP_ANONYMOUS|cmmap.MAP_PRIVATE)
m[:] = data
assert m[:] == data
def run_writer3(reactor, shmfile, size=1024):
print("run_writer", reactor.__class__, shmfile)
if False:
if os.path.exists(shmfile):
print("removing existing file")
os.remove(shmfile)
with open(shmfile, 'wb+') as fd:
fd.write(DATA)
fd.truncate(size)
fd.flush()
return succeed(None)
with open(shmfile, 'rw+') as fd:
# m = cmmap.mmap(prot=cmmap.PROT_READ, length=len(data), flags=cmmap.MAP_SHARED, fd=f.fileno())
# shm = cmmap.mmap(prot=cmmap.PROT_WRITE, length=size, flags=cmmap.MAP_SHARED, fd=fd.fileno(), buffer=False)
# shm = cmmap.mmap(prot=cmmap.PROT_WRITE, length=size, flags=cmmap.MAP_SHARED, fd=fd.fileno(), buffer=True)
shm = cmmap.mmap(prot=cmmap.PROT_READ | cmmap.PROT_WRITE,
flags=cmmap.MAP_SHARED,
length=size,
fd=fd.fileno(),
buffer=True)
print(shm, type(shm), len(shm))
#shm[0:len(DATA)] = DATA
print(binascii.hexlify(shm[0:10]))
#msg = ffi.cast("wamp_msg_subscribed_t*", shm)
#print fd, shm, type(shm), msg, type(msg)
#msg.request = 23
#msg.subscription = 666
#print("msg: {} {}".format(msg.request, msg.subscription))
return succeed(None)
def test_file():
fd, filename = tempfile.mkstemp()
f = open(filename, 'w')
data = 'foobarbing'
f.write(data)
f.close()
f = open(filename, 'r+')
m = cmmap.mmap(prot=cmmap.PROT_READ, length=len(data), flags=cmmap.MAP_SHARED, fd=f.fileno())
assert m[:] == data
def __init__(self, filename):
if not os.path.exists(filename):
raise Exception("path {} does not exist".format(filename))
size = os.stat(filename).st_size
with open(filename, 'rb') as fd:
self._map = cmmap.mmap(prot=cmmap.PROT_READ,
length=size,
flags=cmmap.MAP_SHARED,
fd=fd.fileno(),
buffer=False)
def test_file():
fd, filename = tempfile.mkstemp()
f = open(filename, 'wb')
data = b'\x07\0\0\0\0\0\0\0foobarbing'
f.write(data)
f.close()
f = open(filename, 'rb+')
m = cmmap.mmap(prot=cmmap.PROT_READ, length=len(data), flags=cmmap.MAP_SHARED, fd=f.fileno(), buffer=False)
m = ffi.cast("wamp_msg_subscribed_t*", m)
print m
print m.request
def test_anonymous_shared():
data = 'foobarding'
m = cmmap.mmap(length=10,
prot=cmmap.PROT_READ|cmmap.PROT_WRITE,
flags=cmmap.MAP_ANONYMOUS|cmmap.MAP_SHARED)
m[:] = data
assert m[:] == data
def f():
assert m[:] == data
m[0] = 'd'
proc = Process(target=f)
proc.start()
proc.join()
assert m[:] == 'doobarding'
def run_writer2(reactor, shmfile, size=1000):
print("run_writer", reactor.__class__, shmfile)
if not os.path.exists(shmfile):
with open(shmfile, 'wb') as out:
out.truncate(size)
with open(shmfile, 'wb') as fd:
shm = cmmap.mmap(prot=cmmap.PROT_WRITE, length=size, flags=cmmap.MAP_SHARED, fd=fd.fileno(), buffer=False)
msg = ffi.cast("wamp_msg_subscribed_t*", shm)
#msg.request = 23
#msg.subscription = 666
print("msg: {} {}".format(msg.request, msg.subscription))
return succeed(None)
def test_file():
fd, filename = tempfile.mkstemp()
f = open(filename, 'wb')
data = b'\x07\0\0\0\0\0\0\0foobarbing'
f.write(data)
f.close()
f = open(filename, 'rb+')
m = cmmap.mmap(prot=cmmap.PROT_READ,
length=len(data),
flags=cmmap.MAP_SHARED,
fd=f.fileno(),
buffer=False)
m = ffi.cast("wamp_msg_subscribed_t*", m)
print m
print m.request
def run_reader(reactor, shmfile, size=1024):
print("run_reader", reactor.__class__, shmfile)
area = ShmArea(shmfile)
msg = area.get(0)
print msg.msg_type, msg.request, ffi.string(msg.uri)
msg = area.get(OFFSET)
print msg.msg_type, msg.request, msg.subscription
return succeed(None)
with open(shmfile, 'rb') as fd:
shm = cmmap.mmap(prot=cmmap.PROT_READ, length=size, flags=cmmap.MAP_SHARED, fd=fd.fileno(), buffer=False)
msg = ffi.cast("wamp_msg_subscribed_t*", shm)
print("msg: {} {}".format(msg.request, msg.subscription))
return succeed(None)
def run_writer(reactor, shmfile, size=1024):
print("run_writer", reactor.__class__, shmfile)
with open(shmfile, 'rw+') as fd:
shm = cmmap.mmap(prot=cmmap.PROT_READ|cmmap.PROT_WRITE, flags=cmmap.MAP_SHARED, length=size, fd=fd.fileno(), buffer=False)
msg = ffi.cast("wamp_msg_subscribe_t*", shm)
msg.msg_type = 2
msg.request = 23
msg.uri = u'com.example.add2'
msg.foo = 255
msg = ffi.cast("wamp_msg_subscribed_t*", shm + OFFSET)
msg.msg_type = 3
msg.request = 23
msg.subscription = 666
print("msg: {} {}".format(msg.request, msg.subscription))
return succeed(None)
def run_writer2(reactor, shmfile, size=1000):
print("run_writer", reactor.__class__, shmfile)
if not os.path.exists(shmfile):
with open(shmfile, 'wb') as out:
out.truncate(size)
with open(shmfile, 'wb') as fd:
shm = cmmap.mmap(prot=cmmap.PROT_WRITE,
length=size,
flags=cmmap.MAP_SHARED,
fd=fd.fileno(),
buffer=False)
msg = ffi.cast("wamp_msg_subscribed_t*", shm)
#msg.request = 23
#msg.subscription = 666
print("msg: {} {}".format(msg.request, msg.subscription))
return succeed(None)
def run_reader(reactor, shmfile, size=1024):
print("run_reader", reactor.__class__, shmfile)
area = ShmArea(shmfile)
msg = area.get(0)
print msg.msg_type, msg.request, ffi.string(msg.uri)
msg = area.get(OFFSET)
print msg.msg_type, msg.request, msg.subscription
return succeed(None)
with open(shmfile, 'rb') as fd:
shm = cmmap.mmap(prot=cmmap.PROT_READ,
length=size,
flags=cmmap.MAP_SHARED,
fd=fd.fileno(),
buffer=False)
msg = ffi.cast("wamp_msg_subscribed_t*", shm)
print("msg: {} {}".format(msg.request, msg.subscription))
return succeed(None)
def run_writer(reactor, shmfile, size=1024):
print("run_writer", reactor.__class__, shmfile)
with open(shmfile, 'rw+') as fd:
shm = cmmap.mmap(prot=cmmap.PROT_READ | cmmap.PROT_WRITE,
flags=cmmap.MAP_SHARED,
length=size,
fd=fd.fileno(),
buffer=False)
msg = ffi.cast("wamp_msg_subscribe_t*", shm)
msg.msg_type = 2
msg.request = 23
msg.uri = u'com.example.add2'
msg.foo = 255
msg = ffi.cast("wamp_msg_subscribed_t*", shm + OFFSET)
msg.msg_type = 3
msg.request = 23
msg.subscription = 666
print("msg: {} {}".format(msg.request, msg.subscription))
return succeed(None)
def __init__(self, filename):
if not os.path.exists(filename):
raise Exception("path {} does not exist".format(filename))
size = os.stat(filename).st_size
with open(filename, 'rb') as fd:
self._map = cmmap.mmap(prot=cmmap.PROT_READ, length=size, flags=cmmap.MAP_SHARED, fd=fd.fileno(), buffer=False)