independent or parallel process

drpepper dp at pepper.com
Thu Oct 18 18:34:50 PDT 2012


Thank you Ali,

Indeed, I originally had the function outside of main.

I have found another strange result with std.concurrency:

spawn(&function, array[0].length, array.length);
// generates compiling error: "cannot deduce template function
from arg types"

//Yet,
int var_one = array[0].length;
int var_two = array.length;
spawn(&function, var_one, var_two);
// compiles and runs



On Thursday, 18 October 2012 at 17:52:09 UTC, Ali Çehreli wrote:
> On 10/17/2012 07:46 PM, drpepper wrote:
>> I want the function below to run independently -- like a unix
>> background process, without delaying subsequent code in main. I
>> tried the following using std.parallelism:
>>
>> void main() {
>> function_a(int a, int b) {
>> ...
>> }
>>
>> auto new_task = task!function_a(11, 12);
>> new_task.executeInNewThread(1);
>>
>> // more code ...
>> }
>>
>>
>> I get errors: core.thread.ThreadException ... unable to set
>> thread priority ...
>
> I am not sure whether it is supposed to be, but the function 
> must be a module-level function; so define it outside of main.
>
> When I did that, there was segmentation fault if I used thread 
> priority.
>
> Workaround:
>
> 1) Take function out of main
>
> 2) Do not specify thread priority
>
> Created bug report:
>
>   http://d.puremagic.com/issues/show_bug.cgi?id=8849
>
> Ali



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