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Home > Archive > Unix Programming > November 2005 > catch a signal with non atomic method inside?
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catch a signal with non atomic method inside?
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| Hello everybody,
Sorry, for maybe simple question. But it is important for my
understanding.
So, suppose we have a function that is registered as a
signal(SIGCHLD,foo);
foo loks like
void foo (int)
{
// some nonatomic
LOG << bla << bla << bla << end;
}
of course, there is somewhere in the application a lot of LOG methods
called
Now the question, is this code safe?
Could it be that my log file will be messed?
Thanks
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| David Schwartz 2005-11-23, 5:54 pm |
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"ul" <yuliy@gmx.de> wrote in message
news:1132761926.469261.111750@g43g2000cwa.googlegroups.com...
> Hello everybody,
>
> Sorry, for maybe simple question. But it is important for my
> understanding.
> So, suppose we have a function that is registered as a
> signal(SIGCHLD,foo);
>
> foo loks like
> void foo (int)
> {
> // some nonatomic
> LOG << bla << bla << bla << end;
> }
>
> of course, there is somewhere in the application a lot of LOG methods
> called
> Now the question, is this code safe?
Nope. What if some other LOG method is in progress at the time the
signal is received?!
> Could it be that my log file will be messed?
Definitely.
DS
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