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--!A cross-platform build utility based on Lua
--
-- Licensed 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.
--
-- Copyright (C) 2015-present, TBOOX Open Source Group.
--
-- @author ruki
-- @file server.lua
--
-- imports
import("core.base.object")
import("core.base.bytes")
import("core.base.socket")
import("core.base.scheduler")
import("private.service.message")
import("private.service.stream", {alias = "socket_stream"})
-- define module
local server = server or object()
-- init server
function server:init(daemon)
self._DAEMON = daemon
end
-- is daemon?
function server:daemon()
return self._DAEMON
end
-- set handler
function server:handler_set(handler)
self._HANDLER = handler
end
-- set the given listen address
function server:address_set(address)
local splitinfo = address:split(':', {plain = true})
if #splitinfo == 2 then
self._ADDR = splitinfo[1]
self._PORT = splitinfo[2]
else
self._ADDR = "127.0.0.1"
self._PORT = splitinfo[1]
end
assert(self._ADDR and self._PORT, "invalid listen address!")
end
-- get the listen address
function server:addr()
return self._ADDR
end
-- get the listen port
function server:port()
return self._PORT
end
-- run main loop
function server:runloop()
assert(self._HANDLER, "no handler found!")
-- ensure only one server process
local lock = io.openlock(self:lockfile())
if not lock:trylock() then
raise("%s: has been started!", self)
end
-- save the current pid for stopping service
io.writefile(self:pidfile(), os.getpid())
-- run loop
local sock = socket.bind(self:addr(), self:port())
sock:listen(100)
print("%s: listening %s:%d ..", self, self:addr(), self:port())
io.flush()
while true do
local sock_client = sock:accept()
if sock_client then
scheduler.co_start(function (sock)
self:_handle_session(sock)
sock:close()
end, sock_client)
end
end
io.flush()
sock:close()
end
-- get class
function server:class()
return server
end
-- get pid file
function server:pidfile()
return path.join(self:workdir(), "server.pid")
end
-- get lock file
function server:lockfile()
return path.join(self:workdir(), "server.lock")
end
-- get working directory
function server:workdir()
return os.tmpfile(tostring(self)) .. ".dir"
end
-- handle session
function server:_handle_session(sock)
print("%s: %s: session connected", self, sock)
local stream = socket_stream(sock)
while true do
local msg = stream:recv_object()
if msg then
self:_HANDLER(stream, message(msg))
else
break
end
end
print("%s: %s: session end", self, sock)
end
function server:__tostring()
return "<server>"
end
function main()
local instance = server()
instance:init()
return instance
end
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