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ruanhaishen
redis
Commits
815c06f2
Commit
815c06f2
authored
Apr 11, 2012
by
Erik Dubbelboer
Browse files
added explanation for the magic 511 backlog number
parent
69e79589
Changes
1
Show whitespace changes
Inline
Side-by-side
src/anet.c
View file @
815c06f2
...
...
@@ -262,7 +262,11 @@ static int anetListen(char *err, int s, struct sockaddr *sa, socklen_t len) {
close
(
s
);
return
ANET_ERR
;
}
if
(
listen
(
s
,
511
)
==
-
1
)
{
/* the magic 511 constant is from nginx */
/* Use a backlog of 512 entries. We pass 511 to the listen() call because
* the kernel does: backlogsize = roundup_pow_of_two(backlogsize + 1);
* which will thus give us a backlog of 512 entries */
if
(
listen
(
s
,
511
)
==
-
1
)
{
anetSetError
(
err
,
"listen: %s"
,
strerror
(
errno
));
close
(
s
);
return
ANET_ERR
;
...
...
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