1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
|
import json
import tornado.ioloop
import tornado.stack_context
from imc import nonblock
class Connection:
def __init__(self,linkid):
self.linkid = linkid
self._close_callback = []
def send_msg(self,data):
pass
def start_recvloop(self,recvloop_callback):
pass
def add_close_callback(self,callback):
self._close_callback.append(tornado.stack_context.wrap(callback))
def close(self):
for callback in self._close_callback:
callback(self)
class Proxy:
def __init__(self,linkid):
self._ioloop = tornado.ioloop.IOLoop.instance()
self._linkid = linkid
self._conn_linkidmap = {}
self._caller_genidmap = {self._linkid:{}}
self._call_pathmap = {}
self.MSGTYPE_CALL = 'call'
self.MSGTYPE_RET = 'ret'
self._check_waitcaller_timer = tornado.ioloop.PeriodicCallback(self._check_waitcaller,1000)
self._check_waitcaller_timer.start()
Proxy.instance = self
def add_conn(self,conn):
self._conn_linkidmap[conn.linkid] = conn
self._caller_genidmap[conn.linkid] = {}
conn.add_close_callback(self._conn_close_cb)
conn.start_recvloop(self._recvloop_dispatch)
def del_conn(self,conn):
wait_map = self._caller_genidmap[conn.linkid]
wait_genids = wait_map.keys()
for genid in wait_genids:
wait_map[genid]['callback'](genid,'close',None)
del self._conn_linkidmap[conn.linkid]
del self._caller_genidmap[conn.linkid]
def get_conn(self,linkid):
if linkid not in self._conn_linkidmap:
return None
return self._conn_linkidmap[linkid]
def call(self,genid,timeout,iden,dst,func_name,param):
def _call_cb(genid,err,retvalue):
print('Opps')
try:
stat,retvalue = self._route_call(genid,iden,dst,func_name,param)
if stat == True:
self._ioloop.add_callback(nonblock.retcall,genid,retvalue)
else:
self._add_waitcaller(self._linkid,genid,timeout,_call_cb)
except Exception as err:
_call_cb(genid,err,None)
def register_call(self,path,func_name,func):
self._call_pathmap[''.join([path,'/',func_name])] = func
def _route_call(self,genid,iden,dst,func_name,param):
dst_part = dst.split('/')[1:]
linkid = dst_part[1]
path = ''.join(dst_part[2:])
if linkid == self._linkid:
stat,retvalue = self._handle_call(genid,iden,path,func_name,param)
if stat == True:
ret = (True,retvalue)
else:
ret = (False,self._linkid)
else:
conn = self.get_conn(linkid)
if conn == None:
pass
self._send_msg_call(conn,genid,iden,dst,func_name,param)
ret = (False,conn.linkid)
return ret
def _handle_call(self,genid,iden,path,func_name,param):
try:
return self._call_pathmap[''.join([path,'/',func_name])](param)
except KeyError:
raise Exception('notexist')
def _recvloop_dispatch(self,conn,data):
msg = json.loads(data.decode('utf-8'))
msg_type = msg['type']
if msg_type == self.MSGTYPE_CALL:
self._recv_msg_call(conn,msg)
elif msg_type == self.MSGTYPE_RET:
self._recv_msg_ret(conn,msg)
def _conn_close_cb(self,conn):
self.del_conn(conn)
print('connection close')
def _add_waitcaller(linkid,genid,timeout,callback):
wait = {
'timeout':timeout,
'callback':tornado.stack_context.wrap(callback)
}
self._caller_genidmap[linkid][genid] = wait
def _check_waitcaller(self):
wait_maps = self._caller_genidmap.values()
for wait_map in wait_maps:
wait_genids = wait_map.keys()
wait_del = []
for genid in wait_genids:
wait = wait_map[genid]
wait['timeout'] -= 1000
if wait['timeout'] <= 0:
wait['callback'](genid,'timeout',None)
wait_del.append(genid)
for genid in wait_del:
del wait_map[genid]
def _send_msg_call(self,conn,genid,iden,dst,func_name,param):
msg = {
'type':self.MSGTYPE_CALL,
'genid':genid,
'iden':iden,
'dst':dst,
'func_name':func_name,
'param':param
}
conn.send_msg(bytes(json.dumps(msg),'utf-8'))
def _recv_msg_call(self,conn,msg):
genid = msg['genid']
iden = msg['iden']
dst = msg['dst']
func_name = msg['func_name']
param = msg['param']
def _call_cb(genid,err,retvalue):
print('Opps')
try:
stat,retvalue = self._route_call(genid,iden,dst,func_name,param)
if stat == True:
self._send_msg_ret(conn,genid,retvalue)
else:
pass
except Exception as err:
_call_cb(genid,err,None)
#self._send_msg_ret(conn,genid,'Hello')
def _send_msg_ret(self,conn,genid,retvalue):
msg = {
'type':self.MSGTYPE_RET,
'genid':genid,
'retvalue':retvalue
}
conn.send_msg(bytes(json.dumps(msg),'utf-8'))
def _recv_msg_ret(self,conn,msg):
genid = msg['genid']
retvalue = msg['retvalue']
print(self._caller_genidmap)
self._caller_genidmap[conn.linkid].pop(genid)
print(retvalue)
@nonblock.call
def imc_call(iden,dst,func_name,param,_genid):
Proxy.instance.call(_genid,60000,iden,dst,func_name,param)
def imc_register_call(path,func_name,func):
Proxy.instance.register_call(path,func_name,func)
|
