Re: Python recompile

On Mon, 10 Mar 2025 21:38:35 -0000 (UTC)
Lawrence D'Oliveiro <ldo@nz.invalid> wibbled:

On Mon, 10 Mar 2025 15:11:14 -0000 (UTC), Muttley wrote:
>

Nothing wrong with select if you're not multiplexing hundreds of file
descriptors. Does the job.

>
But it still requires allocating a fixed-length bit array hundreds of
bytes in size, even if you are only concerned with one or two FDs. And if

Hundreds of bytes of unused memory may have mattered in 1985, its a total
irrelevance in 2025.

the numbers of those FDs lie beyond the upper limit of the array, you’re
stuffed.

Any descriptor created that had a value greater than select() could cope with
would break a lot of old code so although I have no proof, I'd bet money on
the kernel/libc authors taking this into account when allocating user space
descriptor values.