Re: why "in_sighandler"?

[Jan Djärv]

YAMAMOTO Mitsuharu skrev:

> The standard says "when a signal interrupts an unsafe function ...".
> My interpretation is that a signal interrupts *only* the function in
> execution on the thread that the signal is delivered to, but the
> signal does not interrupt the functions in execution on the other
> threads.

A signal interrupts all threads on a uni-processor machine.  The fact that the 
signal is delivered to just one thread is another matter.  Also, it has more 
to do with reentrance of the function in question rather than which threads 
are executing what.

        Jan D.