clusteragent.lua
3.36 KB
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local skynet = require "skynet"
local sc = require "skynet.socketchannel"
local socket = require "skynet.socket"
local cluster = require "skynet.cluster.core"
local ignoreret = skynet.ignoreret
local clusterd, gate, fd = ...
clusterd = tonumber(clusterd)
gate = tonumber(gate)
fd = tonumber(fd)
local large_request = {}
local inquery_name = {}
local register_name_mt = { __index =
function(self, name)
local waitco = inquery_name[name]
if waitco then
local co=coroutine.running()
table.insert(waitco, co)
skynet.wait(co)
return rawget(self, name)
else
waitco = {}
inquery_name[name] = waitco
local addr = skynet.call(clusterd, "lua", "queryname", name:sub(2)) -- name must be '@xxxx'
if addr then
self[name] = addr
end
inquery_name[name] = nil
for _, co in ipairs(waitco) do
skynet.wakeup(co)
end
return addr
end
end
}
local function new_register_name()
return setmetatable({}, register_name_mt)
end
local register_name = new_register_name()
local tracetag
local function dispatch_request(_,_,addr, session, msg, sz, padding, is_push)
ignoreret() -- session is fd, don't call skynet.ret
if session == nil then
-- trace
tracetag = addr
return
end
if padding then
local req = large_request[session] or { addr = addr , is_push = is_push, tracetag = tracetag }
tracetag = nil
large_request[session] = req
cluster.append(req, msg, sz)
return
else
local req = large_request[session]
if req then
tracetag = req.tracetag
large_request[session] = nil
cluster.append(req, msg, sz)
msg,sz = cluster.concat(req)
addr = req.addr
is_push = req.is_push
end
if not msg then
tracetag = nil
local response = cluster.packresponse(session, false, "Invalid large req")
socket.write(fd, response)
return
end
end
local ok, response
if addr == 0 then
local name = skynet.unpack(msg, sz)
skynet.trash(msg, sz)
local addr = register_name["@" .. name]
if addr then
ok = true
msg, sz = skynet.pack(addr)
else
ok = false
msg = "name not found"
end
else
if cluster.isname(addr) then
addr = register_name[addr]
end
if addr then
if is_push then
skynet.rawsend(addr, "lua", msg, sz)
return -- no response
else
if tracetag then
ok , msg, sz = pcall(skynet.tracecall, tracetag, addr, "lua", msg, sz)
tracetag = nil
else
ok , msg, sz = pcall(skynet.rawcall, addr, "lua", msg, sz)
end
end
else
ok = false
msg = "Invalid name"
end
end
if ok then
response = cluster.packresponse(session, true, msg, sz)
if type(response) == "table" then
for _, v in ipairs(response) do
socket.lwrite(fd, v)
end
else
socket.write(fd, response)
end
else
response = cluster.packresponse(session, false, msg)
socket.write(fd, response)
end
end
skynet.start(function()
skynet.register_protocol {
name = "client",
id = skynet.PTYPE_CLIENT,
unpack = cluster.unpackrequest,
dispatch = dispatch_request,
}
-- fd can write, but don't read fd, the data package will forward from gate though client protocol.
skynet.call(gate, "lua", "forward", fd)
skynet.dispatch("lua", function(_,source, cmd, ...)
if cmd == "exit" then
socket.close(fd)
skynet.exit()
elseif cmd == "namechange" then
register_name = new_register_name()
else
skynet.error(string.format("Invalid command %s from %s", cmd, skynet.address(source)))
end
end)
end)