1 files changed, 142 insertions, 0 deletions
diff --git a/tests/libtest/lib1564.c b/tests/libtest/lib1564.c
new file mode 100644
index 000000000..13ac5b01e
--- /dev/null
+++ b/tests/libtest/lib1564.c
@@ -0,0 +1,142 @@
+/***************************************************************************
+ *                                  _   _ ____  _
+ *  Project                     ___| | | |  _ \| |
+ *                             / __| | | | |_) | |
+ *                            | (__| |_| |  _ <| |___
+ *                             \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 1998 - 2020, 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.
+ *
+ ***************************************************************************/
+#include "test.h"
+
+#include "testutil.h"
+#include "warnless.h"
+#include "memdebug.h"
+
+#define TEST_HANG_TIMEOUT 60 * 1000
+#define WAKEUP_NUM 10
+
+int test(char *URL)
+{
+  CURLM *multi = NULL;
+  int numfds;
+  int i;
+  int res = 0;
+  struct timeval time_before_wait, time_after_wait;
+
+  (void)URL;
+
+  start_test_timing();
+
+  global_init(CURL_GLOBAL_ALL);
+
+  multi_init(multi);
+
+  /* no wakeup */
+
+  time_before_wait = tutil_tvnow();
+  multi_poll(multi, NULL, 0, 1000, &numfds);
+  time_after_wait = tutil_tvnow();
+
+  if(tutil_tvdiff(time_after_wait, time_before_wait) < 500) {
+    fprintf(stderr, "%s:%d curl_multi_poll returned too early\n",
+            __FILE__, __LINE__);
+    res = TEST_ERR_MAJOR_BAD;
+    goto test_cleanup;
+  }
+
+  abort_on_test_timeout();
+
+  /* try a single wakeup */
+
+  multi_wakeup(multi);
+
+  time_before_wait = tutil_tvnow();
+  multi_poll(multi, NULL, 0, 1000, &numfds);
+  time_after_wait = tutil_tvnow();
+
+  if(tutil_tvdiff(time_after_wait, time_before_wait) > 500) {
+    fprintf(stderr, "%s:%d curl_multi_poll returned too late\n",
+            __FILE__, __LINE__);
+    res = TEST_ERR_MAJOR_BAD;
+    goto test_cleanup;
+  }
+
+  abort_on_test_timeout();
+
+  /* previous wakeup should not wake up this */
+
+  time_before_wait = tutil_tvnow();
+  multi_poll(multi, NULL, 0, 1000, &numfds);
+  time_after_wait = tutil_tvnow();
+
+  if(tutil_tvdiff(time_after_wait, time_before_wait) < 500) {
+    fprintf(stderr, "%s:%d curl_multi_poll returned too early\n",
+            __FILE__, __LINE__);
+    res = TEST_ERR_MAJOR_BAD;
+    goto test_cleanup;
+  }
+
+  abort_on_test_timeout();
+
+  /* try lots of wakeup */
+
+  for(i = 0; i < WAKEUP_NUM; ++i)
+    multi_wakeup(multi);
+
+  time_before_wait = tutil_tvnow();
+  multi_poll(multi, NULL, 0, 1000, &numfds);
+  time_after_wait = tutil_tvnow();
+
+  if(tutil_tvdiff(time_after_wait, time_before_wait) > 500) {
+    fprintf(stderr, "%s:%d curl_multi_poll returned too late\n",
+            __FILE__, __LINE__);
+    res = TEST_ERR_MAJOR_BAD;
+    goto test_cleanup;
+  }
+
+  abort_on_test_timeout();
+
+#if !defined(WIN32) && !defined(_WIN32) && !defined(__WIN32__) \
+    && !defined(__CYGWIN__)
+  /* Even lots of previous wakeups should not wake up this.
+
+     On Windows (particularly when using MinGW), the socketpair
+     used for curl_multi_wakeup() is really asynchronous,
+     meaning when it's called a lot, it can take some time
+     before all of the data can be read. Sometimes it can wake
+     up more than one curl_multi_poll() call. */
+
+  time_before_wait = tutil_tvnow();
+  multi_poll(multi, NULL, 0, 1000, &numfds);
+  time_after_wait = tutil_tvnow();
+
+  if(tutil_tvdiff(time_after_wait, time_before_wait) < 500) {
+    fprintf(stderr, "%s:%d curl_multi_poll returned too early\n",
+            __FILE__, __LINE__);
+    res = TEST_ERR_MAJOR_BAD;
+    goto test_cleanup;
+  }
+
+  abort_on_test_timeout();
+#endif
+
+test_cleanup:
+
+  curl_multi_cleanup(multi);
+  curl_global_cleanup();
+
+  return res;
+}