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| -rw-r--r-- | docs/libcurl-the-guide | 9 |
1 files changed, 8 insertions, 1 deletions
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 |