Re: [boost] [threads / signals2] Win events replace by boost signals (threadsafe)

Subject: Re: [boost] [threads / signals2] Win events replace by boost signals (threadsafe)
From: Fu ji (fujimailing_at_[hidden])
Date: 2015-03-23 07:45:07

I know about join and detach anyway thank you for advice.
Working version:

for(;;){
    auto c = signal.connect([]()
    {
        ThreadHandle->interrupt();
        //code for handling event1
    });

    try
    {
        //code for timeout
    }
    catch (boost::thread_interrupted&)
    {
        //thread interrupted by signal listener
        boost::this_thread::sleep_for(boost::chrono::milliseconds(1000));
    }}

when signal is 'catched' I interrupt main flow (timeout) and do stuff which
should be done if event occurs.

2015-03-23 12:24 GMT+01:00 Ben Pope <benpope81_at_[hidden]>:

> On Monday, March 23, 2015 07:08 PM, Norbert Wenzel wrote:
>
>> On 03/23/2015 11:59 AM, Ben Pope wrote:
>>
>>> On Monday, March 23, 2015 04:55 PM, Fu ji wrote:
>>>
>>>> int main()
>>>> {
>>>>      boost::thread t1(SendSignal);
>>>>
>>>>      for (;;)
>>>>      {
>>>>          std::cout << ".";
>>>>          boost::this_thread::sleep_for(boost::chrono::milliseconds(
>>>> 100));
>>>>      }
>>>>
>>>>      auto c = signal.connect([]() //...
>>>>
>>>
>>> At this point the thread detaches and the process exits:
>>> http://www.boost.org/doc/libs/1_57_0/doc/html/thread/thread_
>>> management.html#thread.thread_management.thread.destructor
>>>
>>> You need to call t1.join() before exiting this scope.
>>>
>>
>> That's true but the end of main() will never be reached (and also the
>> signal will never be connected) since the for(;;)-loop will print dots
>> and sleep forever before actually doing any work.
>>
>
> D'oh!  I saw the less obvious problem first and went with it.
>
> Does anybody program with explicit threads any more? :P
>
> Ben
>
>
>
>
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