--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/thirdparty/curl/docs/examples/10-at-a-time.c	Mon Sep 15 11:43:07 2025 +0200
@@ -0,0 +1,150 @@
+/***************************************************************************
+ *                                  _   _ ____  _
+ *  Project                     ___| | | |  _ \| |
+ *                             / __| | | | |_) | |
+ *                            | (__| |_| |  _ <| |___
+ *                             \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
+ *
+ * This software is licensed as described in the file COPYING, which
+ * you should have received as part of this distribution. The terms
+ * are also available at https://curl.haxx.se/docs/copyright.html.
+ *
+ * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+ * copies of the Software, and permit persons to whom the Software is
+ * furnished to do so, under the terms of the COPYING file.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ***************************************************************************/
+/* <DESC>
+ * Download many files in parallel, in the same thread.
+ * </DESC>
+ */
+
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#ifndef WIN32
+#  include <unistd.h>
+#endif
+#include <curl/curl.h>
+
+static const char *urls[] = {
+  "https://www.microsoft.com",
+  "https://opensource.org",
+  "https://www.google.com",
+  "https://www.yahoo.com",
+  "https://www.ibm.com",
+  "https://www.mysql.com",
+  "https://www.oracle.com",
+  "https://www.ripe.net",
+  "https://www.iana.org",
+  "https://www.amazon.com",
+  "https://www.netcraft.com",
+  "https://www.heise.de",
+  "https://www.chip.de",
+  "https://www.ca.com",
+  "https://www.cnet.com",
+  "https://www.mozilla.org",
+  "https://www.cnn.com",
+  "https://www.wikipedia.org",
+  "https://www.dell.com",
+  "https://www.hp.com",
+  "https://www.cert.org",
+  "https://www.mit.edu",
+  "https://www.nist.gov",
+  "https://www.ebay.com",
+  "https://www.playstation.com",
+  "https://www.uefa.com",
+  "https://www.ieee.org",
+  "https://www.apple.com",
+  "https://www.symantec.com",
+  "https://www.zdnet.com",
+  "https://www.fujitsu.com/global/",
+  "https://www.supermicro.com",
+  "https://www.hotmail.com",
+  "https://www.ietf.org",
+  "https://www.bbc.co.uk",
+  "https://news.google.com",
+  "https://www.foxnews.com",
+  "https://www.msn.com",
+  "https://www.wired.com",
+  "https://www.sky.com",
+  "https://www.usatoday.com",
+  "https://www.cbs.com",
+  "https://www.nbc.com/",
+  "https://slashdot.org",
+  "https://www.informationweek.com",
+  "https://apache.org",
+  "https://www.un.org",
+};
+
+#define MAX_PARALLEL 10 /* number of simultaneous transfers */
+#define NUM_URLS sizeof(urls)/sizeof(char *)
+
+static size_t write_cb(char *data, size_t n, size_t l, void *userp)
+{
+  /* take care of the data here, ignored in this example */
+  (void)data;
+  (void)userp;
+  return n*l;
+}
+
+static void add_transfer(CURLM *cm, int i)
+{
+  CURL *eh = curl_easy_init();
+  curl_easy_setopt(eh, CURLOPT_WRITEFUNCTION, write_cb);
+  curl_easy_setopt(eh, CURLOPT_URL, urls[i]);
+  curl_easy_setopt(eh, CURLOPT_PRIVATE, urls[i]);
+  curl_multi_add_handle(cm, eh);
+}
+
+int main(void)
+{
+  CURLM *cm;
+  CURLMsg *msg;
+  unsigned int transfers = 0;
+  int msgs_left = -1;
+  int still_alive = 1;
+
+  curl_global_init(CURL_GLOBAL_ALL);
+  cm = curl_multi_init();
+
+  /* Limit the amount of simultaneous connections curl should allow: */
+  curl_multi_setopt(cm, CURLMOPT_MAXCONNECTS, (long)MAX_PARALLEL);
+
+  for(transfers = 0; transfers < MAX_PARALLEL; transfers++)
+    add_transfer(cm, transfers);
+
+  do {
+    curl_multi_perform(cm, &still_alive);
+
+    while((msg = curl_multi_info_read(cm, &msgs_left))) {
+      if(msg->msg == CURLMSG_DONE) {
+        char *url;
+        CURL *e = msg->easy_handle;
+        curl_easy_getinfo(msg->easy_handle, CURLINFO_PRIVATE, &url);
+        fprintf(stderr, "R: %d - %s <%s>\n",
+                msg->data.result, curl_easy_strerror(msg->data.result), url);
+        curl_multi_remove_handle(cm, e);
+        curl_easy_cleanup(e);
+      }
+      else {
+        fprintf(stderr, "E: CURLMsg (%d)\n", msg->msg);
+      }
+      if(transfers < NUM_URLS)
+        add_transfer(cm, transfers++);
+    }
+    if(still_alive)
+      curl_multi_wait(cm, NULL, 0, 1000, NULL);
+
+  } while(still_alive || (transfers < NUM_URLS));
+
+  curl_multi_cleanup(cm);
+  curl_global_cleanup();
+
+  return EXIT_SUCCESS;
+}