make sslDisconnect use blocking I/O

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@37392 72102866-910b-0410-8b05-ffd578937521

Source/NSFileHandle.m

@@ -959,8 +959,6 @@ GSTLSHandlePush(gnutls_transport_ptr_t handle, const void *buffer, size_t len)
 
 - (void) dealloc
 {
-  // TLS may need to read data during teardown, and we need to wait for it.
-  [self setNonBlocking: NO];
   // Don't DESTROY ivars below. First release them, then set nil, because
   // `session' may need this back-reference during TLS teardown.
   TEST_RELEASE(opts);
@@ -987,6 +985,8 @@ GSTLSHandlePush(gnutls_transport_ptr_t handle, const void *buffer, size_t len)
 
 - (void) sslDisconnect
 {
+  // TLS may need to read data during teardown, and we need to wait for it.
+  [self setNonBlocking: NO];
   [session disconnect];
 }