Fix issue #4 by replacing localhost with 127.0.0.1 as destination (localhost resolves to IPv6 address and listening socket is only IPv4; Bump minimal supported Windows version to Windows 7.

CMakeLists.txt

@@ -9,8 +9,8 @@ if(UNIX)
 endif()
 
 if(WIN32)
-	add_definitions(-DWINVER=0x0501)
-	add_definitions(-D_WIN32_WINNT=0x0501)
+	add_definitions(-DWINVER=0x0601)
+	add_definitions(-D_WIN32_WINNT=0x0601)
 endif()
 
 set(Boost_USE_STATIC_LIBS ON)

test/SyslogBulkUploaderTests.cpp

@@ -90,7 +90,7 @@ BOOST_AUTO_TEST_CASE(test_udp_writer) {
     ptime start(second_clock::local_time());
     boost::asio::io_service ios;
     FileReader r("../test/sample1");
-    UDPWriter w("localhost", 51514);
+    UDPWriter w("127.0.0.1", 51514);
     SyslogBulkUploader ul(r, w);
     UdpSyslogServer server(ios, 51514, 2000);
     ul.run();

test/UdpSyslogServer.h

@@ -71,7 +71,8 @@ private:
     }
 
     void deadlineHandler() {
-        if (_dt.expires_at() <= deadline_timer::traits_type::now()) {
+        auto delta = deadline_timer::traits_type::now() - _dt.expires_at();
+        if (delta != not_a_date_time && delta >= milliseconds(0)) {
             _socket.cancel();
             _dt.expires_at(boost::posix_time::pos_infin);
         }