Function report |
Source Code:kernel\signal.c |
Create Date:2022-07-28 09:17:57 |
Last Modify:2020-03-17 13:28:47 | Copyright©Brick |
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Name:sys_sigprocmask - examine and change blocked signals*@how: whether to add, remove, or set signals*@nset: signals to add or remove (if non-null)*@oset: previous value of signal mask if non-null* Some platforms have their own version with special arguments;
Proto:SYSCALL_DEFINE3(sigprocmask, int, how, old_sigset_t __user *, nset, old_sigset_t __user *, oset)
Type:
Parameter:Nothing
4188 | If nset Then |
4189 | If copy_from_user( & new_set, nset, size of nset ) Then Return -EFAULT |
4192 | new_blocked = blocked |
4195 | Case how == r blocking signals |
4198 | Case how == r unblocking signals |
4199 | sigdelsetmask( & new_blocked, new_set) |
4200 | Break |
4201 | Case how == r setting the signal mask |
4204 | Default |
4205 | Return -EINVAL |
4211 | If oset Then |
4212 | If copy_to_user(oset, & old_set, size of oset ) Then Return -EFAULT |
4216 | Return 0 |
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