尝试一种新的方式来发送文件。客户端将每10分钟运行一次,要求服务器在最近10分钟内发送新内容。到目前为止,我有40%的时间工作。到目前为止,我无法弄清楚为什么会这样。
服务器主循环:
while 1:
conn, addr = s.accept()
last_ai = get_last_sent_ai()
new_ai = get_new_ai(last_ai)
ai_notes = ''
''' send # of file '''
print "sending length ---------"
conn.sendall('{0}'.format(len(new_ai)))
for ai_file in new_ai:
ai_file = ai_file.rstrip()
if not os.path.isfile(ai_file): continue
f = open(ai_file, 'rb')
ai_notes = f.read()
f.close()
print "sending file infor " + '{0:<10d}:{1:>40s}'.format(len(ai_notes), ai_file)
ready_flag = conn.recv(5)
if ready_flag == "Ready":
conn.sendall(ai_notes)
if len(new_ai) > 0:
update_last_sent(new_ai[-1])
else:
print 'nothing to send'
conn.sendall(' ')
conn.close()
s.close()
客户主循环:
if num_f == 0: sys.exit(0)
while num_f > 0:
f_info = ''
f_info = s.recv(50)
f_len,f_name_tmp = f_info.split(':')
f_len = int(f_len)
s.sendall("Ready")
f_name = f_name_tmp
f = open(f_name, 'wb')
recvd = 0
while recvd < f_len:
chunk = s.recv(min(f_len - recvd, 1024))
if chunk == '':
raise RuntimeError("socket connection broken")
f.write(chunk)
recvd = recvd + len(chunk)
f.close()
num_f -= 1
s.close()
更新: 我回去后改变发送和接收的方式,这个问题似乎已经消失了。当它挂起时必须进行某种阻塞,所以我按照python doc修改了代码,到目前为止所有的测试都在工作。