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| author | yar <yar@FreeBSD.org> | 2004-06-07 11:01:39 +0000 |
|---|---|---|
| committer | yar <yar@FreeBSD.org> | 2004-06-07 11:01:39 +0000 |
| commit | 68060b2236dc8453f4a0471f0b41e12e21711d18 (patch) | |
| tree | 13efc13191bd58a4e268f252e63b25106b748ed5 /lib/libc/sys/sigaction.2 | |
| parent | 76e830207900fd1ac155c5d6702335b25fff43de (diff) | |
| download | FreeBSD-src-68060b2236dc8453f4a0471f0b41e12e21711d18.zip FreeBSD-src-68060b2236dc8453f4a0471f0b41e12e21711d18.tar.gz | |
Finally document the option to avoid zombie creation
through ignoring SIGCHLD.
Diffstat (limited to 'lib/libc/sys/sigaction.2')
| -rw-r--r-- | lib/libc/sys/sigaction.2 | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/lib/libc/sys/sigaction.2 b/lib/libc/sys/sigaction.2 index a93ccea..451a95c 100644 --- a/lib/libc/sys/sigaction.2 +++ b/lib/libc/sys/sigaction.2 @@ -32,7 +32,7 @@ .\" From: @(#)sigaction.2 8.2 (Berkeley) 4/3/94 .\" $FreeBSD$ .\" -.Dd April 3, 1994 +.Dd June 7, 2004 .Dt SIGACTION 2 .Os .Sh NAME @@ -201,6 +201,12 @@ a (or equivalent), it blocks until all of the calling process's child processes terminate, and then returns a value of -1 with errno set to .Er ECHILD . +The same effect of avoiding zombie creation can also be achieved by setting +.Fa sa_handler +for +.Dv SIGCHLD +to +.Dv SIG_IGN . .It Dv SA_ONSTACK If this bit is set, the system will deliver the signal to the process on a @@ -601,6 +607,10 @@ and .\" and .\" SA_SIGINFO flags are featuring options commonly found in other operating systems. +The flags are approved by +.St -susv2 , +along with the option to avoid zombie creation by ignoring +.Dv SIGCHLD . .Sh SEE ALSO .Xr kill 1 , .Xr kill 2 , |
