winhttp: Introduce netconn_wait_overlapped_result() helper.

dlls/winhttp/net.c

@@ -51,6 +51,13 @@ static int sock_send(int fd, const void *msg, size_t len, WSAOVERLAPPED *ovr)
     return -1;
 }
 
+BOOL netconn_wait_overlapped_result( struct netconn *conn, WSAOVERLAPPED *ovr, DWORD *len )
+{
+    DWORD retflags;
+
+    return WSAGetOverlappedResult( conn->socket, ovr, len, TRUE, &retflags );
+}
+
 static int sock_recv(int fd, void *msg, size_t len, int flags)
 {
     int ret;

dlls/winhttp/request.c

@@ -3336,9 +3336,9 @@ static DWORD send_frame( struct socket *socket, enum socket_opcode opcode, USHOR
 
 static DWORD complete_send_frame( struct socket *socket, WSAOVERLAPPED *ovr, const char *buf )
 {
-    DWORD ret, retflags, len, i;
+    DWORD ret, len, i;
 
-    if (!WSAGetOverlappedResult( socket->request->netconn->socket, ovr, &len, TRUE, &retflags ))
+    if (!netconn_wait_overlapped_result( socket->request->netconn, ovr, &len ))
         return WSAGetLastError();
 
     if (socket->bytes_in_send_frame_buffer)

dlls/winhttp/winhttp_private.h

@@ -371,6 +371,7 @@ DWORD netconn_recv( struct netconn *, void *, size_t, int, int * ) DECLSPEC_HIDD
 DWORD netconn_resolve( WCHAR *, INTERNET_PORT, struct sockaddr_storage *, int ) DECLSPEC_HIDDEN;
 DWORD netconn_secure_connect( struct netconn *, WCHAR *, DWORD, CredHandle *, BOOL ) DECLSPEC_HIDDEN;
 DWORD netconn_send( struct netconn *, const void *, size_t, int *, WSAOVERLAPPED * ) DECLSPEC_HIDDEN;
+BOOL netconn_wait_overlapped_result( struct netconn *conn, WSAOVERLAPPED *ovr, DWORD *len ) DECLSPEC_HIDDEN;
 void netconn_cancel_io( struct netconn *conn ) DECLSPEC_HIDDEN;
 DWORD netconn_set_timeout( struct netconn *, BOOL, int ) DECLSPEC_HIDDEN;
 BOOL netconn_is_alive( struct netconn * ) DECLSPEC_HIDDEN;