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协程内调用 require "debugger":attach{} 会卡住 #302

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@huanzai
require "debugger":start "127.0.0.1:12306":event "wait"
print "ok"

function test()
    local count = 0
    for i=1, 1000 do 
        count = count + 1
    end
end

function example()
    require "debugger":attach {}
    print("coroutine started")
    for i=1,5 do 
        test()
        print("do "..i)
        coroutine.yield()
    end
    print("coroutine finished")
end


local co = coroutine.create(example)

coroutine.resume(co)
coroutine.resume(co)
coroutine.resume(co)
coroutine.resume(co)
coroutine.resume(co)
coroutine.resume(co)

print "down!"

调 require "debugger":attach {} 时,会执行到

static void clear_client(lua_State* hL) {
        luadbg_State* L = get_client(hL);
        lua_pushnil(hL);
        lua_rawsetp(hL, LUA_REGISTRYINDEX, &DEBUG_CLIENT);
        if (L) {
            luadbg_close(L);  // 这里就停掉了。
        }
    }

这里 get_client 能拿到一个 L(luadbg_State*) 是主线程创建的,然后就被 luadbg_close 掉了

Activity

  1. actboy168 commented on Sep 6, 2024

    @actboy168
    Owner

    attach 是为什么,同一个实例不需要 attach

  2. huanzai commented on Sep 6, 2024

    @huanzai
    Author

    [#128 ] 我看这里需要:在coroutine中调用require "debugger":attach{},通知调试器这个coroutine需要调试。

  3. huanzai commented on Sep 6, 2024

    @huanzai
    Author

    attach.zip
    见这个例子,

    1. launch.json 的 stopOnEntry: false ,不加断点启动
    2. 在启动 debugger 后,再对 test1 加断点(test1.lua在协程内被加载)
    3. 此时断点不生效

    所以想通过在协程中attach来激活协程的hook

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