Re: [PATCH v16 4/4] eal: add PMU support to tracing library

[Stephen Hemminger]

On Mon, 18 Nov 2024 08:37:06 +0100
Tomasz Duszynski <tduszyn...@marvell.com> wrote:

> +
> +     /* events are matched against occurrences of e=ev1[,ev2,..] pattern */
> +     ret = regcomp(&reg, "e=([_[:alnum:]-],?)+", REG_EXTENDED);
> +     if (ret) {
> +             PMU_LOG(ERR, "Failed to compile event matching regexp");
> +             return -EINVAL;
> +     }
> +
> +     for (;;) {
> +             if (regexec(&reg, pattern, 1, &rmatch, 0))
> +                     break;
> +

As with log parameters. Regex is harder to work with than a glob based syntax.