- Save one call to curlx_tvnow(), which calls gettimeofday(), in each of

Curl_socket_ready(), Curl_poll() and Curl_select() when these are called
  with a zero timeout or a timeout value indicating a blocking call should
  be performed.

  These unnecessary calls to gettimeofday() got introduced in 7.16.2 when
  fixing 'timeout would restart when signal caught while awaiting socket
  events' on 20 March 2007.

- Move some loop breaking logic from the while clause into the loop,
  avoiding compiler warning 'assignment within conditional expression'

CHANGES

@@ -6,6 +6,12 @@
 
                                   Changelog
 
+Yang Tse (20 April 2007)
+- Save one call to curlx_tvnow(), which calls gettimeofday(), in each of
+  Curl_socket_ready(), Curl_poll() and Curl_select() when these are called
+  with a zero timeout or a timeout value indicating a blocking call should
+  be performed.
+
 Daniel S (18 April 2007)
 - James Housley made SFTP uploads use libssh2's non-blocking API