Re: [PATCH 01/11] devtools: warn when adding some pthread calls

[David Marchand <david.marchand@redhat.com>]

Hello Thomas,

On Wed, Sep 6, 2023 at 6:22 PM Thomas Monjalon <thomas@monjalon.net> wrote:
>
> All pthread functions below have an equivalent in rte_thread API:
>         - pthread_create
>         - pthread_join
>         - pthread_detach
>         - pthread_setname_np
>         - pthread_set_name_np
>         - pthread_setaffinity_np
>         - pthread_attr_setinheritsched
>         - pthread_attr_setschedpolicy
> Usage of these functions will be raised to encourage rte_thread adoption.
>
> The pthread functions for locks and cancel are still allowed.
>
> Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
> ---
>  devtools/checkpatches.sh | 8 ++++++++
>  1 file changed, 8 insertions(+)
>
> diff --git a/devtools/checkpatches.sh b/devtools/checkpatches.sh
> index 55fabc5458..131ffbcebe 100755
> --- a/devtools/checkpatches.sh
> +++ b/devtools/checkpatches.sh
> @@ -119,6 +119,14 @@ check_forbidden_additions() { # <patch>
>                 -f $(dirname $(readlink -f $0))/check-forbidden-tokens.awk \
>                 "$1" || res=1
>
> +       # refrain from using some pthread functions
> +       awk -v FOLDERS="lib drivers app examples" \
> +               -v EXPRESSIONS="pthread_(create|join|detach|set((|_)name_np|affinity_np)|attr_set(inheritsched|schedpolicy))\\\(" \

I remember some awk (was it Alpine Linux? or FreeBSD ?..) does not
like empty pattern like (|plop).
For this case here, it is better (and kind of more readable) to use _?


> +               -v RET_ON_FAIL=1 \
> +               -v MESSAGE='Using pthread functions, prefer rte_thread' \
> +               -f $(dirname $(readlink -f $0))/check-forbidden-tokens.awk \
> +               "$1" || res=1
> +
>         # forbid use of __reserved which is a reserved keyword in Windows system headers
>         awk -v FOLDERS="lib drivers app examples" \
>                 -v EXPRESSIONS='\\<__reserved\\>' \
> --
> 2.42.0
>

-- 
David Marchand