sigsetmask.2

来自「<B>Digital的Unix操作系统VAX 4.2源码</B>」· 2 代码 · 共 31 行

.\" SCCSID: @(#)sigsetmask.2	8.1	9/11/90
.TH sigsetmask 2
.SH Name
sigsetmask \- set current signal mask
.SH Syntax
.nf
.B sigsetmask(\fImask\fP)
.B int \fImask\fP;
.SH Description
.NXR "sigsetmask system call"
.NXR "signal mask" "setting"
.NXA "signal" "signal mask"
.NXA "sigblock system call" "sigsetmask system call"
The
.PN sigsetmask
system call
sets the current signal mask (those signals
that are blocked from delivery).  Signal
.I i
is blocked if the
.IR i th
bit in 
.I mask
is a 1.
.PP
The system quietly disallows SIGKILL or SIGSTOP to be blocked.
.PP
The previous set of masked signals is returned.
.SH See Also
kill(2), sigblock(2), sigpause(2), sigvec(2)