Name
sys_rt_sigprocmask — 
     change the list of currently blocked signals
 
Synopsis
| long sys_rt_sigprocmask ( | int how, | 
|  | sigset_t __user * nset, | 
|  | sigset_t __user * oset, | 
|  | size_t sigsetsize ); | 
 
Arguments
- how
- 
     whether to add, remove, or set signals
     
- nset
- 
     stores pending signals
     
- oset
- 
     previous value of signal mask if non-null
     
- sigsetsize
- 
     size of sigset_t type