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| author | simon <simon@FreeBSD.org> | 2008-07-17 21:54:23 +0000 |
|---|---|---|
| committer | simon <simon@FreeBSD.org> | 2008-07-17 21:54:23 +0000 |
| commit | ea1061e2f6826360711fcca0e69e9f188506e17a (patch) | |
| tree | a0ca98b2b66b01760ae71bb886e625f82ec535fb /lib/libc/gen | |
| parent | ac5e6208c0df75a96ee0d1fd907835ac34062072 (diff) | |
| download | FreeBSD-src-ea1061e2f6826360711fcca0e69e9f188506e17a.zip FreeBSD-src-ea1061e2f6826360711fcca0e69e9f188506e17a.tar.gz | |
Make it more clear what it means that SA_RESTART is set for signal
handlers added with signal(3).
Submitted by: gnn (slightly modified by me)
MFC after: 1 week
Diffstat (limited to 'lib/libc/gen')
| -rw-r--r-- | lib/libc/gen/signal.3 | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/lib/libc/gen/signal.3 b/lib/libc/gen/signal.3 index 4086f68..866eee3 100644 --- a/lib/libc/gen/signal.3 +++ b/lib/libc/gen/signal.3 @@ -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 , |
