[Global]: loading init

deps/curl/docs/libcurl/curl_easy_duphandle.md

@@ -0,0 +1,72 @@
+---
+c: Copyright (C) Daniel Stenberg, <daniel.se>, et al.
+SPDX-License-Identifier: curl
+Title: curl_easy_duphandle
+Section: 3
+Source: libcurl
+See-also:
+  - curl_easy_cleanup (3)
+  - curl_easy_init (3)
+  - curl_easy_reset (3)
+  - curl_global_init (3)
+---
+
+# NAME
+
+curl_easy_duphandle - Clone a libcurl session handle
+
+# SYNOPSIS
+
+~~~c
+#include <curl/curl.h>
+
+CURL *curl_easy_duphandle(CURL *handle);
+~~~
+
+# DESCRIPTION
+
+This function returns a new curl handle, a duplicate, using all the options
+previously set in the input curl *handle*. Both handles can subsequently be
+used independently and they must both be freed with curl_easy_cleanup(3).
+
+Any options that the input handle has been told to point to (as opposed to
+copy) with previous calls to curl_easy_setopt(3), are pointed to by the new
+handle as well. You must therefore make sure to keep the data around until
+both handles have been cleaned up.
+
+The new handle does **not** inherit any state information, no connections, no
+SSL sessions and no cookies. It also does not inherit any share object states
+or options (created as if CURLOPT_SHARE(3) was set to NULL).
+
+If the source handle has HSTS or alt-svc enabled, the duplicate gets data read
+data from the main filename to populate the cache.
+
+In multi-threaded programs, this function must be called in a synchronous way,
+the input handle may not be in use when cloned.
+
+# EXAMPLE
+
+~~~c
+int main(void)
+{
+  CURL *curl = curl_easy_init();
+  if(curl) {
+    CURLcode res;
+    CURL *nother;
+    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
+    nother = curl_easy_duphandle(curl);
+    res = curl_easy_perform(nother);
+    curl_easy_cleanup(nother);
+    curl_easy_cleanup(curl);
+  }
+}
+~~~
+
+# AVAILABILITY
+
+Added in 7.9
+
+# RETURN VALUE
+
+If this function returns NULL, something went wrong and no valid handle was
+returned.