I am trying to get my socket writes to be non-blocking. So far I have been unsuccessful. I am using an IO::Socket::UNIX type socket for interprocess communication. After opening it, I set the blocking flag to 0 but this does not seem to make my syswrite call non-blocking.
Below are some snippets of my perl code and a print out from my logging. The logging clearly shows that the sywrite is blocking.
Anyone have any idea how I can resolve this problem?
Are UNIX sockets able to work in a non-blocking mode?
Any help greatly appreciated,
kwo
my $s = IO::Socket::UNIX->new(
Type => SOCK_STREAM,
Local => $sockname,
Listen => 10,
ReuseAddr => 1,
);
if ( not $s ) {
logerr("Can't create socket $sockname : $!");
exit $PACE::Constants::DAEMON_EXIT;
}
# Vantive ? : Set the Socket to non-blocking.
$s->blocking(0);
my $tmp_val = $s->blocking();
logdbg( 15, "Blocking flag = $tmp_val\n");
...
logdbg(14, "writeSocket : File # $fn has $size bytes to send.\n");
# if no data to write just return
return if ($size == 0);
$sent = syswrite $wh, $buf, $size;
logdbg(14, "writeSocket : $size bytes attempted, $sent bytes writt
+en.\n");
...
06/01/31 15:49:56 Agent: writeSocket : File # 35 has 100098 bytes to s
+end.
06/01/31 15:50:26 Agent: writeSocket : 100098 bytes attempted, 100098
+bytes written.
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
| |
For: |
|
Use: |
| & | | & |
| < | | < |
| > | | > |
| [ | | [ |
| ] | | ] |
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.