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local thread = require 'bee.thread'
local channel = require 'bee.channel'
local select = require 'bee.select'
local utility = require 'utility'
local await = require 'await'
local function channel_init(chan)
local selector = select.create()
selector:event_add(chan:fd(), select.SELECT_READ)
return { selector, chan }
end
local function channel_bpop(ctx)
local selector, chan = ctx[1], ctx[2]
while true do
for _ in selector:wait() do
local r = table.pack(chan:pop())
if r[1] == true then
return table.unpack(r, 2)
end
end
end
end
local taskPad = channel.create 'taskpad'
local waiter = channel_init(channel.create 'waiter')
local type = type
local counter = utility.counter()
local braveTemplate = [[
package.path = %q
package.cpath = %q
DEVELOP = %s
DBGPORT = %d
DBGWAIT = %s
collectgarbage 'generational'
log = require 'brave.log'
xpcall(dofile, log.error, %q)
local brave = require 'brave'
brave.register(%d, %q)
]]
---@class pub
local m = {}
m.type = 'pub'
m.braves = {}
m.ability = {}
m.taskQueue = {}
m.taskMap = {}
m.prvtPad = {}
--- 注册酒馆的功能
function m.on(name, callback)
m.ability[name] = callback
end
--- 招募勇者，勇者会从公告板上领取任务，完成任务后到看板娘处交付任务
---@param num integer
---@param privatePad string?
function m.recruitBraves(num, privatePad)
for _ = 1, num do
local id = #m.braves + 1
log.debug('Create brave:', id)
m.braves[id] = {
id = id,
thread = thread.create(braveTemplate:format(
package.path,
package.cpath,
DEVELOP,
DBGPORT or 11412,
DBGWAIT or 'nil',
(ROOT / 'debugger.lua'):string(),
id,
privatePad
)),
taskMap = {},
currentTask = nil,
memory = 0,
}
end
if privatePad and not m.prvtPad[privatePad] then
m.prvtPad[privatePad] = {
req = channel.create('req:' .. privatePad),
res = channel.create('res:' .. privatePad),
}
end
end
--- 给勇者推送任务
function m.pushTask(info)
if info.removed then
return false
end
if m.prvtPad[info.name] then
m.prvtPad[info.name].req:push(info.name, info.id, info.params)
else
taskPad:push(info.name, info.id, info.params)
end
m.taskMap[info.id] = info
return true
end
--- 从勇者处接收任务反馈
function m.popTask(brave, id, result)
local info = m.taskMap[id]
if not info then
log.warn(('Brave pushed unknown task result: # %d => [%d]'):format(brave.id, id))
return
end
m.taskMap[id] = nil
if not info.removed then
info.removed = true
if info.callback then
xpcall(info.callback, log.error, result)
end
end
end
--- 从勇者处接收报告
function m.popReport(brave, name, params)
local abil = m.ability[name]
if not abil then
log.warn(('Brave pushed unknown report: # %d => %q'):format(brave.id, name))
return
end
xpcall(abil, log.error, params, brave)
end
--- 发布任务
---@param name string
---@param params any
---@return any
---@async
function m.awaitTask(name, params)
local info = {
id = counter(),
name = name,
params = params,
}
if m.pushTask(info) then
return await.wait(function (waker)
info.callback = waker
end)
else
return false
end
end
--- 发布同步任务，如果任务进入了队列，会返回执行器
--- 通过 jumpQueue 可以插队
---@param name string
---@param params any
---@param callback? function
function m.task(name, params, callback)
local info = {
id = counter(),
name = name,
params = params,
callback = callback,
}
return m.pushTask(info)
end
function m.reciveFromPad(pad)
local suc, id, name, result = pad:pop()
if not suc then
return false
end
if type(name) == 'string' then
m.popReport(m.braves[id], name, result)
else
m.popTask(m.braves[id], name, result)
end
return true
end
--- 接收反馈
function m.recieve(block)
if block then
local id, name, result = channel_bpop(waiter)
if type(name) == 'string' then
m.popReport(m.braves[id], name, result)
else
m.popTask(m.braves[id], name, result)
end
else
while true do
local ok
if m.reciveFromPad(waiter[2]) then
ok = true
end
for _, pad in pairs(m.prvtPad) do
if m.reciveFromPad(pad.res) then
ok = true
end
end
if not ok then
break
end
end
end
end
--- 检查伤亡情况
function m.checkDead()
while true do
local err = thread.errlog()
if not err then
break
end
log.error('Brave is dead!: ' .. err)
end
end
function m.step(block)
m.checkDead()
m.recieve(block)
end
return m
|
