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
|
local subprocess = require 'bee.subprocess'
local util = require 'utility'
local await = require 'await'
local pub = require 'pub'
local jsonrpc = require 'jsonrpc'
local define = require 'proto.define'
local timer = require 'timer'
local json = require 'json'
local reqCounter = util.counter()
local m = {}
m.ability = {}
m.waiting = {}
m.holdon = {}
function m.getMethodName(proto)
if proto.method:sub(1, 2) == '$/' then
return proto.method:sub(3), true
else
return proto.method, false
end
end
function m.on(method, callback)
m.ability[method] = callback
end
function m.response(id, res)
if id == nil then
log.error('Response id is nil!', util.dump(res))
return
end
assert(m.holdon[id])
m.holdon[id] = nil
local data = {}
data.id = id
data.result = res == nil and json.null or res
local buf = jsonrpc.encode(data)
--log.debug('Response', id, #buf)
io.stdout:write(buf)
end
function m.responseErr(id, code, message)
if id == nil then
log.error('Response id is nil!', util.dump(message))
return
end
local buf = jsonrpc.encode {
id = id,
error = {
code = code,
message = message,
}
}
--log.debug('ResponseErr', id, #buf)
io.stdout:write(buf)
end
function m.notify(name, params)
local buf = jsonrpc.encode {
method = name,
params = params,
}
--log.debug('Notify', name, #buf)
io.stdout:write(buf)
end
function m.awaitRequest(name, params)
local id = reqCounter()
local buf = jsonrpc.encode {
id = id,
method = name,
params = params,
}
--log.debug('Request', name, #buf)
io.stdout:write(buf)
return await.wait(function (waker)
m.waiting[id] = waker
end)
end
function m.doMethod(proto)
local method, optional = m.getMethodName(proto)
local abil = m.ability[method]
if not abil then
if not optional then
log.warn('Recieved unknown proto: ' .. method)
end
if proto.id then
m.responseErr(proto.id, define.ErrorCodes.MethodNotFound, method)
end
return
end
if proto.id then
m.holdon[proto.id] = method
end
await.call(function ()
--log.debug('Start method:', method)
local clock = os.clock()
local ok = true
local res
-- 任务可能在执行过程中被中断，通过close来捕获
local response <close> = util.defer(function ()
local passed = os.clock() - clock
if passed > 0.2 then
log.debug(('Method [%s] takes [%.3f]sec.'):format(method, passed))
end
--log.debug('Finish method:', method)
if not proto.id then
return
end
if ok then
m.response(proto.id, res)
else
m.responseErr(proto.id, define.ErrorCodes.InternalError, res)
end
end)
ok, res = xpcall(abil, log.error, proto.params)
end)
end
function m.doResponse(proto)
local id = proto.id
local waker = m.waiting[id]
if not waker then
log.warn('Response id not found: ' .. util.dump(proto))
return
end
m.waiting[id] = nil
if proto.error then
log.warn(('Response error [%d]: %s'):format(proto.error.code, proto.error.message))
return
end
waker(proto.result)
end
function m.listen()
subprocess.filemode(io.stdin, 'b')
subprocess.filemode(io.stdout, 'b')
io.stdin:setvbuf 'no'
io.stdout:setvbuf 'no'
pub.task('loadProto')
end
return m
|
