[PATCH] Always do locking when accessing streams (bug 15142)

[Andreas Schwab]

On Nov 21 2019, Florian Weimer wrote:

> * Andreas Schwab:
>
>> During exit, skip files that are currently locked to avoid deadlock.
>
> Which locks are taken during the deadlock?

Presumably any FILE locks, if there are other threads still running.

> Does this fix or re-open bug 15142?

Why re-open?

>> +  /* We want to skip locked streams.  Some threads might use streams but
>> +     that is their problem, we don't flush those.  */
>> +  int result = _IO_flush_all_lockp (true);
>
> Is this still conforming to POSIX?

Are deadlocks conforming to POSIX?

Andreas.

-- 
Andreas Schwab, SUSE Labs, schwab@suse.de
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