[fpc-pascal] Stopping daemon in linux

Michael Van Canneyt michael at freepascal.org
Mon Nov 9 21:51:09 CET 2009



On Mon, 9 Nov 2009, Jonas Maebe wrote:

>
> On 09 Nov 2009, at 21:03, Michael Van Canneyt wrote:
>
>> On Mon, 9 Nov 2009, "Vinzent H=F6fler" wrote:
>> =

>>> As wrong as in "Don't call most system functions from within a signal =

>>> handler.", maybe?
>> =

>> Hmm... In that case, many exceptions would not work either ?
>
> The sigaction handlers for catching exceptions have been fixed quite a wh=
ile =

> ago already to only collect the necessary information from the signal =

> context, and to then return from the signal handler to the start of the R=
TL =

> function that handles run time errors, passing this info as arguments (we=
 can =

> pass at least 3 items on every platform by modifying the parameter regist=
er =

> contents in the signal context; we also change the instruction pointer in=
 the =

> context so that it returns to the RTL's runerror handler rather than to =

> wherever the signal was triggered).

Hm. =

Quite complex code, and not processor independent.
Is there not a more generic way of handling this ?

Michael.


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