FpSigProcMask
Set list of blocked signals
Declaration
Source position: bunxh.inc line 23
function FpSigProcMask(how: cint; nset: psigset; oset: psigset) : cint;
function FpSigProcMask(how: cint; constref nset: tsigset;
var oset: tsigset) : cint;
Description
Changes the list of currently blocked signals. The behaviour of the call depends on How :
- SIG_BLOCK
- The set of blocked signals is the union of the current set and the nset argument.
- SIG_UNBLOCK
- The signals in nset are removed from the set of currently blocked signals.
- SIG_SETMASK
- The list of blocked signals is set so nset.
If oset is non-nil, then the old set is stored in it.
Errors
Errno is used to report errors.
- sys_efault
- oset or nset point to an address outside the range of the process.
- sys_eintr
- System call was interrupted.
See also
| Name | Description |
|---|---|
| fpKill | Send a signal to a process |
| fpSigAction | Install signal handler |
| fpSigPending | Return set of currently pending signals |
| fpSigSuspend | Set signal mask and suspend process till signal is received |