From 7052598e599798b0cc06c96e75cd1d187986cf0a Mon Sep 17 00:00:00 2001 From: Daniel Stenberg Date: Thu, 29 Jan 2004 16:17:25 +0000 Subject: note about the need for extra functions set to OpenSSL if you use OpenSSL multi-threaded --- docs/libcurl-the-guide | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'docs') diff --git a/docs/libcurl-the-guide b/docs/libcurl-the-guide index 6fe959459..ec9e2913a 100644 --- a/docs/libcurl-the-guide +++ b/docs/libcurl-the-guide @@ -222,7 +222,14 @@ Multi-threading issues handlers. Signals are needed for a SIGPIPE handler, and the alarm() syscall is used to catch timeouts (mostly during DNS lookup). - So when using multiple threads you should first ignore SIGPIPE in your main + If you are accessing HTTPS or FTPS URLs in a multi-threaded manner, you are + then of course using OpenSSL multi-threaded and it has itself a few + requirements on this. Basicly, you need to provide one or two functions to + allow it to function properly. For all details, see this: + + http://www.openssl.org/docs/crypto/threads.html#DESCRIPTION + + When using multiple threads you should first ignore SIGPIPE in your main thread and set the CURLOPT_NOSIGNAL option to TRUE for all handles. Everything will work fine except that timeouts are not honored during the DNS -- cgit v1.2.3