Use SOCKET type in windows (#89)

Author: an-tao

trantor/net/inner/AresResolver.cc

@@ -234,7 +234,7 @@ void AresResolver::ares_hostcallback_(void* data,
 }
 
 #ifdef _WIN32
-int AresResolver::ares_sock_createcallback_(long long unsigned int sockfd,
+int AresResolver::ares_sock_createcallback_(SOCKET sockfd,
                                             int type,
                                             void* data)
 #else
@@ -248,7 +248,7 @@ int AresResolver::ares_sock_createcallback_(int sockfd, int type, void* data)
 
 void AresResolver::ares_sock_statecallback_(void* data,
 #ifdef _WIN32
-                                            long long unsigned int sockfd,
+                                            SOCKET sockfd,
 #else
                                             int sockfd,
 #endif

trantor/net/inner/AresResolver.h

@@ -126,15 +126,15 @@ class AresResolver : public Resolver,
                                    int timeouts,
                                    struct hostent* hostent);
 #ifdef _WIN32
-    static int ares_sock_createcallback_(long long unsigned int sockfd,
+    static int ares_sock_createcallback_(SOCKET sockfd,
                                          int type,
                                          void* data);
 #else
     static int ares_sock_createcallback_(int sockfd, int type, void* data);
 #endif
     static void ares_sock_statecallback_(void* data,
 #ifdef _WIN32
-                                         long long unsigned int sockfd,
+                                         SOCKET sockfd,
 #else
                                          int sockfd,
 #endif