[Interest] QThreadPool functionality for QThreads

[Elvis Stansvik]

2017-01-19 1:10 GMT+01:00 Thiago Macieira <thiago.macieira at intel.com>:
> On quarta-feira, 18 de janeiro de 2017 20:04:41 PST Elvis Stansvik wrote:
>> If you have one QThread that depends on the completion of another,
>> then no, I don't think there's a convenient API in Qt to express that
>> relationship and run the threads in sequence. You'll have to string
>> them together yourself, or maybe use something else like Threadweaver.
>> I could be wrong of course
>
> You can always chain-connect one thread's finished() signal to the other's
> start() slot.

Yes sorry, should have been more explicit, that's what I meant with
"string them together".

Frank, another threading approach in Qt which we haven't mentioned yet
is QtConcurrent. I use that myself in an application where I had to
load a series of large tomographic volumes using VTK (so blocking
I/O). It might not be a good fit for your use case, but thought I
should mention it for brevity.

Elvis

>
> But that's unnecessary overhead: stopping and starting threads. You should do
> like Elvis says and just reuse the thread.
>
> --
> Thiago Macieira - thiago.macieira (AT) intel.com
>   Software Architect - Intel Open Source Technology Center
>
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