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your system has such. Note that you must never share the same handle in
multiple threads.
+ libcurl's implementation of timeouts might use signals (depending on what it
+ was built to use for name resolving), and signal handling is generally not
+ thread-safe. Multi-threaded Applicationss that call libcurl from different
+ threads (on different handles) might want to use CURLOPT_NOSIGNAL, e.g.:
+
+ curl_easy_setopt(handle, CURLOPT_NOSIGNAL, true);
If you use a OpenSSL-powered libcurl in a multi-threaded environment, you
need to provide one or two locking functions: