在Lua車道之間共享一個全局變量

Question

我想在兩個車道之間共享一個全局變量，想法是當lane1更新一個共享變量時，我應該能夠在車道2得到預定時獲得它的更新值。有針對這個的解決方法嗎？

代碼片段如下： -

shared_variable = 0 
local function lane1() 
    .. 
    shared_variable = shared_variable + 1 
end 

local function lane2() 
    .. 
    print(shared_variable)-->shared variable is not getting updated,always prints 0 
end 

Thread1= lanes.gen("*",{globals = _G},lane1) 
Thread2= lanes.gen("*",{globals = _G},lane2) 

T1 = Thread1() 
T2 = Thread2() 

T1:join() 
T2:join() 

Answer 1

下面是示例實現wh ERE我們可以分享車道之間的varible（使用設置& get方法）

你告訴

require("lanes") 

shared_variable = 0 

local linda = lanes.linda() 

local function lane1() 
    while true do 
     shared_variable = shared_variable + 1 
     linda:set("var", shared_variable) 
    end 
end 

local function lane2() 
    while true do 
     local v = linda:get("var") 
     print(v) 
    end 
end 

Thread1= lanes.gen("*",{globals = _G},lane1) 
Thread2= lanes.gen("*",{globals = _G},lane2) 

T1 = Thread1() 
T2 = Thread2() 

T1:join() 
T2:join() 

Answer 2

你將不得不使用林多斯的變量自己同步 - 這裏的文檔：

http://kotisivu.dnainternet.net/askok/bin/lanes/#lindas

而且這裏是你的代碼的固定版本：

require("lanes") 

shared_variable = 0 

local linda = lanes.linda() 

local function lane1() 
    while true do 
     shared_variable = shared_variable + 1 
     linda:send("var", shared_variable) 
    end 
end 

local function lane2() 
    while true do 
     local v = linda:receive("var") 
     print(v) 
    end 
end 

Thread1= lanes.gen("*",{globals = _G},lane1) 
Thread2= lanes.gen("*",{globals = _G},lane2) 

T1 = Thread1() 
T2 = Thread2() 

T1:join() 
T2:join()