Masking all real time signals with sigaddset( )

wtruong · 12-07-2009, 05:48 PM

To create a signal mask with C:

#include <signal.h>

sigset_t sig_mask;
sigemptyset(&sig_mask);
sigaddset(&sig_mask,SIGINT);

Now here is my question:
Is there a way to mask real time signals SIGRTMIN+1 to SIGRTMAX-1 all at once without doing:

for(int i = SIGRTMIN+1; i < SIGRTMAX; i++)
{
sigaddset(&sig_mask,i);
}

Thanks

wtruong · 12-08-2009, 02:21 AM

neonsignal · 12-08-2009, 03:16 AM

There are some #define macros in signal.h that give you bitwise operations on signal masks (since they are really just a set of bits). However, this doesn't save you any code unless you are doing this particular set more than once (since you still have to cycle through to create the bit set in a portable way before you can or it in).