fix: timer task is time out or enqueue queue_, should run task immediately

wang007987 commented 1 week ago

Summary by CodeRabbit

Improvements
- Enhanced thread execution control in the background processes for better performance and responsiveness.

coderabbitai[bot] commented 1 week ago

Walkthrough

The ThreadPool class in src/net/src/thread_pool.cc now includes a new boolean variable rsignal_wait in the runInThread() method. This variable determines whether the thread should wait for specific conditions on a condition variable rsignal_ before proceeding, thus enabling more flexible control over thread execution.

Changes

File	Change Summary
`src/net/src/thread_pool.cc`	Added a boolean variable `rsignal_wait` to the `runInThread()` method. Modified `rsignal_.wait()` to use conditional checks.

Sequence Diagram(s)

sequenceDiagram
    participant Thread as Thread
    participant ThreadPool as ThreadPool
    participant RSignal as RSignal

    Thread->>ThreadPool: start runInThread()
    ThreadPool->>RSignal: rsignal_wait check
    alt rsignal_wait is true
        ThreadPool->>RSignal: wait()
        RSignal-->>ThreadPool: signal received
    else rsignal_wait is false
        ThreadPool->>ThreadPool: continue without wait
    end
    ThreadPool->>Thread: execute task

Poem

In the realm of threads, a signal's cue,
With rsignal_wait, a change anew.
Some paths will pause, others flow,
Immediate tasks, with speed they go.
Threads dance wisely, in sync with fate,
A tune of code they orchestrate.
     ~ Coderabbit 🐇✨

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AlexStocks commented 1 week ago

@CodiumAI-Agent /review

CodiumAI-Agent commented 1 week ago

PR Reviewer Guide 🔍

⏱️ Estimated effort to review [1-5]	3
🧪 Relevant tests	No
🔒 Security concerns	No
⚡ Key issues to review	Possible Bug: The logic to reset `rsignal_wait` to true after waiting might lead to unexpected behavior or race conditions. It's important to ensure that the condition `!queue_.empty() \|\| !time_queue_.empty() \|\| should_stop()` is still valid after the lock is released and before it's acquired again.
⚡ Key issues to review	Performance Concern: The use of `rsignal_.wait_for` with a dynamic wait time based on `exec_time - unow` could lead to performance issues if not handled correctly, especially in a high-load scenario. This needs careful review to ensure it does not introduce latency or inefficiency.

AlexStocks commented 1 week ago

@wang007987 thank you for your PR. U have done a great job. Have u joined our Wechat group?

wangshao1 commented 1 week ago

加上这个逻辑之后，线程还是优先执行到期的timertask吧？感觉这两个应该拆开，在一个线程中执行不太好。另外，现在pika中应该是没有用到timer_task。

Issues-translate-bot commented 1 week ago

Bot detected the issue body's language is not English, translate it automatically.

After adding this logic, the thread should still give priority to executing the expired timertask, right? It feels like these two should be separated, and it is not very good to execute them in one thread. In addition, timer_task should not be used in pika now.

QlQlqiqi commented 1 week ago

sry, I think your pr maybe unuseful. I guess that u maybe wanna do task immediately after waiting for timer task. Because it costs much time for waiting. When jumping into wait function, if task is not empty, the wait function will be out immediately and if task is empty, the wait function will be waiting. So i think there is no bug in logic.

不好意思，我认为你的 pr 作用不大，我认为你也许是想在等待完 timer task 后立刻执行 task，因为等待需要花费很长时间。当进入 wait 函数的时候，如果 task 为空，wait 函数会直接返回，如果不为空，就继续等。所以我认为这里没有逻辑 bug。

OpenAtomFoundation / pika