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be specific about what max_fd contains after a call

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This commit is contained in:
Daniel Stenberg 2005-04-25 08:55:55 +00:00
parent a8ff0a21bf
commit 6e1633a6c5
1 changed files with 5 additions and 1 deletions
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6
docs/libcurl/curl_multi_fdset.3
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@ -1,6 +1,6 @@
.\" $Id$ .\" $Id$
.\" .\"
.TH curl_multi_fdset 3 "18 Apr 2005" "libcurl 7.9.5" "libcurl Manual" .TH curl_multi_fdset 3 "25 Apr 2005" "libcurl 7.9.5" "libcurl Manual"
.SH NAME .SH NAME
curl_multi_fdset - extracts file descriptor information from a multi handle curl_multi_fdset - extracts file descriptor information from a multi handle
.SH SYNOPSIS .SH SYNOPSIS
@ -21,6 +21,10 @@ but be sure to FD_ZERO them before calling this function as
otherwise remove any other. The \fIcurl_multi_perform(3)\fP function should be otherwise remove any other. The \fIcurl_multi_perform(3)\fP function should be
called as soon as one of them are ready to be read from or written to. called as soon as one of them are ready to be read from or written to.
If no file descriptors are set by libcurl, \fImax_fd\fP will contain -1 when
this function returns. Otherwise it will contain the higher descriptor number
libcurl set.
You should also be aware that when doing select(), you should consider using a You should also be aware that when doing select(), you should consider using a
rather small (single-digit number of seconds) timeout and call rather small (single-digit number of seconds) timeout and call
\fIcurl_multi_perform\fP regularly - even if no activity has been seen on the \fIcurl_multi_perform\fP regularly - even if no activity has been seen on the