1 files changed, 63 insertions, 0 deletions
diff --git a/libs/libcurl/src/asyn.h b/libs/libcurl/src/asyn.h
index fd6792edb6..194cab2c93 100644
--- a/libs/libcurl/src/asyn.h
+++ b/libs/libcurl/src/asyn.h
@@ -26,6 +26,7 @@
 
 #include "curl_setup.h"
 #include "curl_addrinfo.h"
+#include "httpsrr.h"
 
 struct addrinfo;
 struct hostent;
@@ -33,6 +34,68 @@ struct Curl_easy;
 struct connectdata;
 struct Curl_dns_entry;
 
+#ifdef CURLRES_THREADED
+#include "curl_threads.h"
+
+/* Data for synchronization between resolver thread and its parent */
+struct thread_sync_data {
+  curl_mutex_t *mtx;
+  char *hostname;        /* hostname to resolve, Curl_async.hostname
+                            duplicate */
+#ifndef CURL_DISABLE_SOCKETPAIR
+  curl_socket_t sock_pair[2]; /* eventfd/pipes/socket pair */
+#endif
+  struct Curl_addrinfo *res;
+#ifdef HAVE_GETADDRINFO
+  struct addrinfo hints;
+#endif
+  struct thread_data *td; /* for thread-self cleanup */
+  int port;
+  int sock_error;
+  bool done;
+};
+
+struct thread_data {
+  curl_thread_t thread_hnd;
+  unsigned int poll_interval;
+  timediff_t interval_end;
+  struct thread_sync_data tsd;
+#if defined(USE_HTTPSRR) && defined(USE_ARES)
+  struct Curl_https_rrinfo hinfo;
+  ares_channel channel;
+#endif
+};
+
+#elif defined(CURLRES_ARES) /* CURLRES_THREADED */
+
+struct thread_data {
+  int num_pending; /* number of outstanding c-ares requests */
+  struct Curl_addrinfo *temp_ai; /* intermediary result while fetching c-ares
+                                    parts */
+  int last_status;
+#ifndef HAVE_CARES_GETADDRINFO
+  struct curltime happy_eyeballs_dns_time; /* when this timer started, or 0 */
+#endif
+#ifdef USE_HTTPSRR
+  struct Curl_https_rrinfo hinfo;
+#endif
+  char hostname[1];
+};
+
+#endif /* CURLRES_ARES */
+
+#ifdef USE_ARES
+#include <ares.h>
+
+/* for HTTPS RR purposes as well */
+int Curl_ares_getsock(struct Curl_easy *data,
+                      ares_channel channel,
+                      curl_socket_t *socks);
+int Curl_ares_perform(ares_channel channel,
+                      timediff_t timeout_ms);
+#endif
+
+
 /*
  * This header defines all functions in the internal asynch resolver interface.
  * All asynch resolvers need to provide these functions.