mORMot Open Source

Uefi

Member

Registered: 2024-02-14

Posts: 48

mormot.core.threads

Hello, I don't understand at all how to use mormot.core.threads. Could you give some examples, for example, how to parallelize Tstringlist ?
I can't find any information on how to use mormot.core.threads anywhere, but I'd like to try it.

ab

Administrator

From: France

Registered: 2010-06-21

Posts: 15,328

Website

Re: mormot.core.threads

I don't understand what "parallelize TStringList" mean.
TStringList is not thread safe by itself.

What do you want to do?

Uefi

Member

Registered: 2024-02-14

Posts: 48

Re: mormot.core.threads

I don't understand what "parallelize TStringList" mean.
TStringList is not thread safe by itself.

What do you want to do?

Hi, I mean, for example, something like this, as it is done in another library, OmniThreadLibrary:

var
StringList:Tstringlist;
....
Parallel.ForEach(0, Stringlist.count-1).NumTasks(4).Execute(
procedure (const i: integer)
begin
...
Stringlist[i];
....
end);

I would like to do something similar through mormot.core.threads

zen010101

Member

Registered: 2024-06-15

Posts: 139

Re: mormot.core.threads

  Key Differences from OmniThreadLibrary

  | Aspect             | OmniThreadLibrary     | mORMot                                    |
  |--------------------|-----------------------|-------------------------------------------|
  | Callback signature | procedure(i: integer) | procedure(IndexStart, IndexStop: integer) |
  | Granularity        | Per-item              | Per-range (more efficient)                |
  | Thread pool        | Implicit              | Explicit TSynParallelProcess              |
  | Anonymous methods  | Supported             | Requires method of object                 |

Full runnable demo is here:  https://gist.github.com/zen010101/a69f7 … 41da1424b7