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From: "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com>
Newsgroups: comp.lang.c++,comp.lang.c
Subject: Re: Threads across programming languages
Date: Fri, 3 May 2024 00:07:57 -0700
Organization: A noiseless patient Spider
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On 5/2/2024 5:22 PM, Chris M. Thomasson wrote:
> On 5/2/2024 5:15 PM, Kaz Kylheku wrote:
>> On 2024-05-02, Chris M. Thomasson <chris.m.thomasson.1@gmail.com> wrote:
>>> The CPU can become a bottleneck.
>>
>> Unfortunately, not in a way that you could use for playing slide
>> guitar, let alone actually drinking beer through it.
>>
> 
> :^D The problem is that I have had to debug server code that actually 
> locked a global mutex ala:
> 
> for (;;)
> {
>     io_complete& io = wait_for_io(INFINITE);
> 
>     lock();
>       io.foobar();

A fun part...

io.foobar() does some things that might call lock() again, during 
certain scenarios. Oh, so the programmers says, well, lock() needs to be 
recursive... Oh, well, it seems to work. Deadlock! Shit!



>     unlock();
> }
> 
> Oh shit.