curl tests: updated select() error handling, file doxy

Tests reports now about unexpected errors from select() and
source code line number to simplify problematic position
locating.
Used much smaller timeout on W32 if system is doing some
sockets data processing in other threads.

1 files changed, 17 insertions, 8 deletions

diff --git a/src/testcurl/test_add_conn.c b/src/testcurl/test_add_conn.c
index d122a50e..04def886 100644
--- a/src/testcurl/test_add_conn.c
+++ b/src/testcurl/test_add_conn.c
@@ -1,7 +1,8 @@
 /*
      This file is part of libmicrohttpd
      Copyright (C) 2007, 2009, 2011 Christian Grothoff
-     Copyright (C) 2020 Karlson2k (Evgeny Grin) - large rework, multithreading.
+     Copyright (C) 2014-2020 Evgeny Grin (Karlson2k) - large rework,
+                             multithreading.
 
      libmicrohttpd is free software; you can redistribute it and/or modify
      it under the terms of the GNU General Public License as published
@@ -922,14 +923,22 @@ testExternalGet (void)
     {
 #ifdef MHD_POSIX_SOCKETS
       if (EINTR != errno)
-        externalErrorExitDesc ("select() failed");
+      {
+        fprintf (stderr, "Unexpected select() error: %d. Line: %d\n",
+                 (int) errno, __LINE__);
+        fflush (stderr);
+        exit (99);
+      }
 #else
-      if ((WSAEINVAL != WSAGetLastError ()) || (0 != rs.fd_count) || (0 !=
-                                                                      ws.
-                                                                      fd_count)
-          || (0 != es.fd_count) )
-        externalErrorExitDesc ("select() failed");
-      Sleep (1000);
+      if ((WSAEINVAL != WSAGetLastError ()) ||
+          (0 != rs.fd_count) || (0 != ws.fd_count) || (0 != es.fd_count) )
+      {
+        fprintf (stderr, "Unexpected select() error: %d. Line: %d\n",
+                 (int) WSAGetLastError (), __LINE__);
+        fflush (stderr);
+        exit (99);
+      }
+      Sleep (1);
 #endif
     }
     if (FD_ISSET (aParam.lstn_sk, &rs))