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Re: [Nano-devel] Signal safety Issue

From: Benno Schulenberg
Subject: Re: [Nano-devel] Signal safety Issue
Date: Mon, 30 Jul 2018 19:54:49 +0200
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Op 29-07-18 om 19:49 schreef Benno Schulenberg:
> And just thinking about it a little, I think it should be possible
> to implement a fifo in an async-safe manner without much effort,
> as the get() and unget() operations work on different ends of the
> queue.

Oops!  This is wrong, of course -- get() and unget() both work on the
head of the queue.  So this would be tricky to get right.  :|

>> Also in text.c line 1107 in signal handler ‘cancel_command‘ is used function
>> nperror("kill"). This function calls function perror, which is
>> asynchronous-unsafe, so this also should not be used in signal handler.

Re-reported on Savannah:


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