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| author | Gisle Aas <gisle@activestate.com> | 2005-12-08 09:53:35 +0000 |
|---|---|---|
| committer | Gisle Aas <gisle@activestate.com> | 2005-12-08 09:53:35 +0000 |
| commit | 23d0437f66972bc146b114c26cbf448ceea3e9e2 (patch) | |
| tree | 674f3add6323fa0ddfd67e2df53287b0683d98d8 /pod/perlfunc.pod | |
| parent | 61ff64ea87bfc095e60d68654dc0c5199dec292f (diff) | |
| download | perl-23d0437f66972bc146b114c26cbf448ceea3e9e2.tar.gz | |
Improve the setsockopt description.
Removed claim that OPTVAL might be undef as it is just treated
the same as 0 and give the usual use-of-uninitialized-value
warning. Added an example.
p4raw-id: //depot/perl@26299
Diffstat (limited to 'pod/perlfunc.pod')
| -rw-r--r-- | pod/perlfunc.pod | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/pod/perlfunc.pod b/pod/perlfunc.pod index 0127c820f5..2cb16d0149 100644 --- a/pod/perlfunc.pod +++ b/pod/perlfunc.pod @@ -4926,8 +4926,15 @@ that doesn't implement setpriority(2). X<setsockopt> Sets the socket option requested. Returns undefined if there is an -error. OPTVAL may be specified as C<undef> if you don't want to pass an -argument. +error. Use integer constants provided by the C<Socket> module for +LEVEL and OPNAME. Values for LEVEL can also be obtained from +getprotobyname. OPTVAL might either be a packed string or an integer. +An integer OPTVAL is shorthand for pack("i", OPTVAL). + +An example disabling the Nagle's algorithm for a socket: + + use Socket qw(IPPROTO_TCP TCP_NODELAY); + setsockopt($socket, IPPROTO_TCP, TCP_NODELAY, 1); =item shift ARRAY X<shift> |