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Make it more clear what it means that SA_RESTART is set for signal

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handlers added with signal(3).

Submitted by:	gnn (slightly modified by me)
MFC after:	1 week
This commit is contained in:
simon 2008-07-17 21:54:23 +00:00
parent ac5e6208c0
commit ea1061e2f6
1 changed files with 5 additions and 3 deletions
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8
lib/libc/gen/signal.3
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@ -181,10 +181,12 @@ func() remains installed after a signal has been delivered.
For some system calls, if a signal is caught while the call is
executing and the call is prematurely terminated,
the call is automatically restarted.
(The handler is installed using the
Any handler installed with
.Xr signal 3
will have the
.Dv SA_RESTART
flag with
.Xr sigaction 2 . )
flag set, meaning that any restartable system call will not return on
receipt of a signal.
The affected system calls include
.Xr read 2 ,
.Xr write 2 ,