summaryrefslogtreecommitdiff
path: root/lib/lua/TSocket.lua
blob: d71fc1f984ef23bd7b3c108647eb3dfe375a32fa (plain)
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
---- Licensed to the Apache Software Foundation (ASF) under one
-- or more contributor license agreements. See the NOTICE file
-- distributed with this work for additional information
-- regarding copyright ownership. The ASF licenses this file
-- to you under the Apache License, Version 2.0 (the
-- "License"); you may not use this file except in compliance
-- with the License. You may obtain a copy of the License at
--
--   http://www.apache.org/licenses/LICENSE-2.0
--
-- Unless required by applicable law or agreed to in writing,
-- software distributed under the License is distributed on an
-- "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-- KIND, either express or implied. See the License for the
-- specific language governing permissions and limitations
-- under the License.
--

require 'TTransport'
require 'libluasocket'

-- TSocketBase
TSocketBase = TTransportBase:new{
  __type = 'TSocketBase',
  timeout = 1000,
  host = 'localhost',
  port = 9090,
  handle
}

function TSocketBase:close()
  if self.handle then
    self.handle:destroy()
    self.handle = nil
  end
end

-- Returns a table with the fields host and port
function TSocketBase:getSocketInfo()
  if self.handle then
    return self.handle:getsockinfo()
  end
  terror(TTransportException:new{errorCode = TTransportException.NOT_OPEN})
end

function TSocketBase:setTimeout(timeout)
  if timeout and ttype(timeout) == 'number' then
    if self.handle then
      self.handle:settimeout(timeout)
    end
    self.timeout = timeout
  end
end

-- TSocket
TSocket = TSocketBase:new{
  __type = 'TSocket',
  host = 'localhost',
  port = 9090
}

function TSocket:isOpen()
  if self.handle then
    return true
  end
  return false
end

function TSocket:open()
  if self.handle then
    self:close()
  end

  -- Create local handle
  local sock, err = luasocket.create_and_connect(
    self.host, self.port, self.timeout)
  if err == nil then
    self.handle = sock
  end

  if err then
    terror(TTransportException:new{
      message = 'Could not connect to ' .. self.host .. ':' .. self.port
        .. ' (' .. err .. ')'
    })
  end
end

function TSocket:read(len)
  local buf = self.handle:receive(self.handle, len)
  if not buf or string.len(buf) ~= len then
    terror(TTransportException:new{errorCode = TTransportException.UNKNOWN})
  end
  return buf
end

function TSocket:write(buf)
  self.handle:send(self.handle, buf)
end

function TSocket:flush()
end

-- TServerSocket
TServerSocket = TSocketBase:new{
  __type = 'TServerSocket',
  host = 'localhost',
  port = 9090
}

function TServerSocket:listen()
  if self.handle then
    self:close()
  end

  local sock, err = luasocket.create(self.host, self.port)
  if not err then
    self.handle = sock
  else
    terror(err)
  end
  self.handle:settimeout(self.timeout)
  self.handle:listen()
end

function TServerSocket:accept()
  local client, err = self.handle:accept()
  if err then
    terror(err)
  end
  return TSocket:new({handle = client})
end