def process_request():
"""
<Purpose>
Server thread for processing connections using select ...
"""
while True:
#Pass list of Inputs, Outputs for select which returns if any activity
#occurs on any socket.
ret = lind_test_server.select_syscall(11, inputs, outputs, excepts, 5)
#Check for any activity in any of the Input sockets...
for sock in ret[1]:
#If the socket returned was listerner socket, then there's a new conn.
#so we accept it, and put the client socket in the list of Inputs.
if sock is serversockfd:
newsockfd = lind_test_server.accept_syscall(sock)
inputs.append(newsockfd[2])
#Write to a file...
elif sock is filefd:
emultimer.sleep(1)
assert lind_test_server.write_syscall(sock, 'test') == 4, \
"Failed to write into a file..."
lind_test_server.lseek_syscall(sock, 0, SEEK_SET)
inputs.remove(sock)
#If the socket is in established conn., then we recv the data, if
#there's no data, then close the client socket.
else:
data = lind_test_server.recv_syscall(sock, 100, 0)
if data:
assert data == "test", "Recv failed in select..."
#We make the ouput ready, so that it sends out data...
if sock not in outputs:
outputs.append(sock)
else:
#No data means remote socket closed, hence close the client socket
#in server, also remove this socket from readfd's.
lind_test_server.close_syscall(sock)
inputs.remove(sock)
#Check for any activity in any of the output sockets...
for sock in ret[2]:
if sock is filefd:
assert lind_test_server.read_syscall(sock, 4) == "test", \
"Failed to read from a file..."
#test for file finished, remove from monitoring.
outputs.remove(sock)
else:
lind_test_server.send_syscall(sock, data, 0)
#Data is sent out this socket, it's no longer ready for writing
#remove this socket from writefd's.
outputs.remove(sock)
lind_test_server.close_syscall(serversockfd)
def process_request():
"""
<Purpose>
Server thread for processing connections using select ...
"""
while True:
#Pass list of Inputs, Outputs for select which returns if any activity
#occurs on any socket.
ret = lind_test_server.select_syscall(11, inputs, outputs, excepts, 5)
#Check for any activity in any of the Input sockets...
for sock in ret[1]:
#If the socket returned was listerner socket, then there's a new conn.
#so we accept it, and put the client socket in the list of Inputs.
if sock is serversockfd:
newsockfd = lind_test_server.accept_syscall(sock)
inputs.append(newsockfd[2])
#Write to a file...
elif sock is filefd:
emultimer.sleep(1)
assert lind_test_server.write_syscall(sock, 'test') == 4, \
"Failed to write into a file..."
lind_test_server.lseek_syscall(sock, 0, SEEK_SET)
inputs.remove(sock)
#If the socket is in established conn., then we recv the data, if
#there's no data, then close the client socket.
else:
data = lind_test_server.recv_syscall(sock, 100, 0)
if data:
assert data == "test", "Recv failed in select..."
#We make the ouput ready, so that it sends out data...
if sock not in outputs:
outputs.append(sock)
else:
#No data means remote socket closed, hence close the client socket
#in server, also remove this socket from readfd's.
lind_test_server.close_syscall(sock)
inputs.remove(sock)
#Check for any activity in any of the output sockets...
for sock in ret[2]:
if sock is filefd:
assert lind_test_server.read_syscall(sock, 4) == "test", \
"Failed to read from a file..."
#test for file finished, remove from monitoring.
outputs.remove(sock)
else:
lind_test_server.send_syscall(sock, data, 0)
#Data is sent out this socket, it's no longer ready for writing
#remove this socket from writefd's.
outputs.remove(sock)
lind_test_server.close_syscall(serversockfd)
def do_server():
newsocketfd = lind_test_server.accept_syscall(serversockfd)
fd = newsocketfd[2]
lind_test_server.send_syscall(fd, 'jhasdfhjsa', 0)
lind_test_server.setshutdown_syscall(fd, SHUT_RDWR)
try:
# should fail!!!
lind_test_server.send_syscall(fd, 'jhasdfhjsa', 0)
except:
pass
else:
print "send after shutdown didn't fail!!!"
def do_server():
newsocketfd = lind_test_server.accept_syscall(serversockfd)
fd = newsocketfd[2]
lind_test_server.send_syscall(fd, 'jhasdfhjsa', 0)
lind_test_server.setshutdown_syscall(fd, SHUT_RDWR)
try:
# should fail!!!
lind_test_server.send_syscall(fd, 'jhasdfhjsa', 0)
except:
pass
else:
print "send after shutdown didn't fail!!!"
def process_request():
"""
<Purpose>
Process the incoming data using above specifed tests
"""
rip, rport, newsockfd = lind_test_server.accept_syscall(serversockfd)
#Process first test...
try:
msg = lind_test_server.recvfrom_syscall(newsockfd, 100, MSG_PEEK)
assert len(msg[2]) == 100, "Length expected 100 bytes to peek, but only" \
+ " got " + str(len(msg[2])) + " bytes."
msg = lind_test_server.recvfrom_syscall(newsockfd, 100, 0)
assert len(msg[2]) == 100, "Length expected 100 bytes to read, but only" \
+ " got " + str(len(msg[2])) + " bytes."
except Exception, e:
print 'TEST:- W:100, P:100, R:100 : ', e
def process_request():
"""
<Purpose>
Process the incoming data using above specifed tests
"""
rip, rport, newsockfd = lind_test_server.accept_syscall(serversockfd)
#Process first test...
try:
msg = lind_test_server.recvfrom_syscall(newsockfd, 100, MSG_PEEK)
assert len(msg[2]) == 100, "Length expected 100 bytes to peek, but only" \
+ " got " + str(len(msg[2])) + " bytes."
msg = lind_test_server.recvfrom_syscall(newsockfd, 100, 0)
assert len(msg[2]) == 100, "Length expected 100 bytes to read, but only" \
+ " got " + str(len(msg[2])) + " bytes."
except Exception, e:
print 'TEST:- W:100, P:100, R:100 : ', e
def do_server(): newsocketfd = lind_test_server.accept_syscall(serversockfd)
print 'Test:- W:100, Peek several times : ', e
emultimer.sleep(0.2)
#Process fourth test...
try:
msg = lind_test_server.recvfrom_syscall(newsockfd, 100, MSG_PEEK)
assert len(msg[2]) == 50, "Length expected 50 bytes to peek, but only" \
+ " got " + str(len(msg[2])) + " bytes."
except Exception, e:
print 'Test:- W:100 P:50 : ', e
#Gracefully close the socket
lind_test_server.close_syscall(newsockfd)
rip, rport, newsockfd = lind_test_server.accept_syscall(serversockfd)
#Process first test...
try:
msg = lind_test_server.recvfrom_syscall(newsockfd, 100, MSG_PEEK)
assert len(msg[2]) == 100, "Length expected 100 bytes to peek, but only" \
+ " got " + str(len(msg[2])) + " bytes."
msg = lind_test_server.recvfrom_syscall(newsockfd, 100, 0)
assert len(msg[2]) == 100, "Length expected 100 bytes to read, but only" \
+ " got " + str(len(msg[2])) + " bytes."
except Exception, e:
print 'TEST:- W:100, P:100, R:100 : ', e
emultimer.sleep(0.2)
#Process second test...
def process_request():
"""
<Purpose>
Server thread for processing connections using poll ...
"""
while True:
#Pass list of sockets that needs for polling which returns if any activity
#occurs on any socket.
poll_vals = lind_test_server.poll_syscall(polled, 5)
ret = [poll_vals[0],[],[],[]]
ret[1] = [x['fd'] for x in poll_vals[1] if x['revents'] & lind_test_server.POLLIN]
ret[2] = [x['fd'] for x in poll_vals[1] if x['revents'] & lind_test_server.POLLOUT]
#Check for any activity in any of the Input sockets...
for sock in ret[1]:
#If the socket returned was listerner socket, then there's a new conn.
#so we accept it, and put the client socket in the list of Inputs.
if sock is serversockfd:
newsockfd = lind_test_server.accept_syscall(sock)
new_poll = {'fd':newsockfd[2], 'events':lind_test_server.POLLIN, 'revents':0}
polled.append(new_poll)
#Write to a file...
elif sock is filefd:
assert lind_test_server.write_syscall(sock, 'test') == 4, \
"Failed to write into a file..."
lind_test_server.lseek_syscall(sock, 0, SEEK_SET)
#Once the write is successful into a file, Modify the file descriptor
#so that its ready for reading out of the file.
[x for x in polled if x['fd'] == sock][0]['events'] = \
lind_test_server.POLLOUT
#If the socket is in established conn., then we recv the data, if
#there's no data, then close the client socket.
else:
data = lind_test_server.recv_syscall(sock, 100, 0)
if data:
assert data == "test", "Recv failed in select..."
#This socket is ready for writing, modify the socket descriptor
#to be in read-write mode. This socket can write data out to network
[x for x in polled if x['fd'] == sock][0]['events'] = \
lind_test_server.POLLIN | lind_test_server.POLLOUT
else:
#No data means remote socket closed, hence close the client socket
#in server, also remove this socket from polling.
lind_test_server.close_syscall(sock)
to_go = [x for x in polled if x['fd'] == sock]
map(polled.remove, to_go)
#Check for any activity in any of the output sockets...
for sock in ret[2]:
if sock is filefd:
assert lind_test_server.read_syscall(sock, 4) == "test", \
"Failed to read from a file..."
#test for file finished, remove from polling.
to_go = [x for x in polled if x['fd'] == sock]
map(polled.remove, to_go)
else:
lind_test_server.send_syscall(sock, data, 0)
#Data is sent out of this socket, it's no longer ready for writing,
#modify it only read mode.
[x for x in polled if x['fd'] == sock][0]['events'] = \
lind_test_server.POLLIN
lind_test_server.close_syscall(serversockfd)
emultimer.sleep(0.2)
#Process fourth test...
try:
msg = lind_test_server.recvfrom_syscall(newsockfd, 100, MSG_PEEK)
assert len(msg[2]) == 50, "Length expected 50 bytes to peek, but only" \
+ " got " + str(len(msg[2])) + " bytes."
except Exception, e:
print 'Test:- W:100 P:50 : ', e
#Gracefully close the socket
lind_test_server.close_syscall(newsockfd)
rip, rport, newsockfd = lind_test_server.accept_syscall(serversockfd)
#Process first test...
try:
msg = lind_test_server.recvfrom_syscall(newsockfd, 100, MSG_PEEK)
assert len(msg[2]) == 100, "Length expected 100 bytes to peek, but only" \
+ " got " + str(len(msg[2])) + " bytes."
msg = lind_test_server.recvfrom_syscall(newsockfd, 100, 0)
assert len(msg[2]) == 100, "Length expected 100 bytes to read, but only" \
+ " got " + str(len(msg[2])) + " bytes."
except Exception, e:
print 'TEST:- W:100, P:100, R:100 : ', e
emultimer.sleep(0.2)
#Process second test...