hello world

neo/curl/docs/libcurl/curl_multi_fdset.3

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+.\" $Id: curl_multi_fdset.3,v 1.4 2004/03/15 11:37:38 bagder Exp $
+.\"
+.TH curl_multi_fdset 3 "3 May 2002" "libcurl 7.9.5" "libcurl Manual"
+.SH NAME
+curl_multi_fdset - extracts file descriptor information from a multi handle
+.SH SYNOPSIS
+#include <curl/curl.h>
+
+CURLMcode curl_multi_fdset(CURLM *multi_handle,
+                           fd_set *read_fd_set,
+                           fd_set *write_fd_set,
+                           fd_set *exc_fd_set,
+                           int *max_fd);
+.ad
+.SH DESCRIPTION
+This function extracts file descriptor information from a given multi_handle.
+libcurl returns its fd_set sets. The application can use these to select() or
+poll() on. The curl_multi_perform() function should be called as soon as one
+of them are ready to be read from or written to.
+
+NOTE that once this call is made, you must not remove the sets you point to,
+as libcurl will need to be able to read them. It needs them after select()
+calls, to know if certain sockets are readable or writable.
+.SH RETURN VALUE
+CURLMcode type, general libcurl multi interface error code. See
+\fIlibcurl-errors.3\fP
+.SH "SEE ALSO"
+.BR curl_multi_cleanup "(3)," curl_multi_init "(3)"