2 LuaEvent - Copyright (C) 2007 Thomas Harning <harningt@gmail.com>
3 Licensed as LGPL - See doc/COPYING for details.
5 module("luaevent", package
.seeall
)
6 require("luaevent.core")
8 local EV_READ
= luaevent
.core
.EV_READ
9 local EV_WRITE
= luaevent
.core
.EV_WRITE
10 local base
= luaevent
.core
.new()
12 local function addevent(...)
13 return base
:addevent(...)
16 local function getWrapper()
17 local running
= coroutine
.running()
19 return select(2, coroutine
.resume(running
, ...))
22 -- Weak keys.. the keys are the client sockets
23 local clientTable
= setmetatable({}, {'__mode', 'kv'})
24 local function socketWait(sock
, event
)
25 if not clientTable
[sock
] then clientTable
[sock
] = addevent(sock
, event
, getWrapper()) end
26 coroutine
.yield(event
)
30 function send(sock
, data
, start
, stop
)
32 local from
= start
or 1
36 s
, err
, sent
= sock
:send(data
, from
, stop
)
37 if s
or err
~= "timeout" then return s
, err
, sent
end
38 socketWait(sock
, EV_WRITE
)
41 function receive(sock
, pattern
, part
)
43 pattern
= pattern
or '*l'
45 s
, err
, part
= sock
:receive(pattern
, part
)
46 if s
or err
~= "timeout" then return s
, err
, part
end
47 socketWait(sock
, EV_READ
)
50 -- same as above but with special treatment when reading chunks,
51 -- unblocks on any data received.
52 function receivePartial(client
, pattern
)
54 pattern
= pattern
or "*l"
56 s
, err
, part
= client
:receive(pattern
)
57 if s
or ( (type(pattern
)=="number") and part
~="" and part
~=nil ) or
58 err
~= "timeout" then return s
, err
, part
end
59 socketWait(sock
, EV_READ
)
62 function connect(sock
, ...)
64 local ret
, err
= sock
:connect(...)
65 if ret
or err
~= "timeout" then return ret
, err
end
66 socketWait(sock
, EV_WRITE
)
67 ret
, err
= sock
:connect(...)
68 if err
== "already connected" then
76 local function clientCoroutine(sock
, handler
)
77 -- Figure out what to do ......
80 local function handleClient(co
, client
, handler
)
81 local ok
, res
, event
= coroutine
.resume(co
, client
, handler
)
83 local function serverCoroutine(sock
, callback
)
84 local listenItem
= addevent(sock
, EV_READ
, getWrapper())
86 local event
= coroutine
.yield(EV_READ
)
88 local client
= sock
:accept()
91 local co
= coroutine
.create(clientCoroutine
)
92 handleClient(co
, client
, callback
)
96 function addserver(sock
, callback
)
97 local coro
= coroutine
.create(serverCoroutine
)
98 assert(coroutine
.resume(coro
, sock
, callback
))
100 function addthread(func
, ...)
101 return coroutine
.resume(coroutine
.create(func
), ...)
103 local _skt_mt
= {__index
= {
104 connect
= function(self
, ...)
105 return connect(self
.socket
, ...)
107 send
= function (self
, data
)
108 return send(self
.socket
, data
)
111 receive
= function (self
, pattern
)
112 if (self
.timeout
==0) then
113 return receivePartial(self
.socket
, pattern
)
115 return receive(self
.socket
, pattern
)
118 flush = function (self
)
119 return flush(self
.socket
)
122 settimeout
= function (self
,time
)
127 close
= function(self
)
128 clientTable
[self
.socket
]:close()
133 return setmetatable({socket
= sock
}, _skt_mt
)
135 loop
= function(...) base
:loop(...) end