From 8373ca3641ce793a868377600fb5fd7b8e8bf95a Mon Sep 17 00:00:00 2001 From: Daniel Stenberg Date: Tue, 9 Oct 2012 22:19:49 +0200 Subject: curl_multi_wait: no wait if no descriptors to wait for This is a minor change in behavior after having been pointed out by Mark Tully and discussed on the list. Initially this case would internally call poll() with no sockets and a timeout which would equal a sleep for that specified time. Bug: http://curl.haxx.se/mail/lib-2012-10/0076.html Reported by: Mark Tully --- docs/libcurl/curl_multi_wait.3 | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'docs/libcurl/curl_multi_wait.3') diff --git a/docs/libcurl/curl_multi_wait.3 b/docs/libcurl/curl_multi_wait.3 index ad97d47c5..b14760bf3 100644 --- a/docs/libcurl/curl_multi_wait.3 +++ b/docs/libcurl/curl_multi_wait.3 @@ -43,6 +43,9 @@ similar to \fIpoll(2)\fP's pollfd structure to be waited on in the same call. On completion, if \fInumfds\fP is supplied, it will be populated with the number of file descriptors on which interesting events occured. +If no extra file descriptors are provided and libcurl has no file descriptor +to offer to wait for, this function will return immediately. + This function is encouraged to be used instead of select(3) when using the multi interface to allow applications to easier circumvent the common problem with 1024 maximum file descriptors. @@ -67,6 +70,6 @@ events such as the socket being clear to write without blocking. CURLMcode type, general libcurl multi interface error code. See \fIlibcurl-errors(3)\fP .SH AVAILABILITY -This function was added in libcurl 7.28.0 +This function was added in libcurl 7.28.0. .SH "SEE ALSO" .BR curl_multi_fdset "(3), " curl_multi_perform "(3)" -- cgit v1.2.3