Commit 86f266b0 authored by Fabian Frank's avatar Fabian Frank Committed by Daniel Stenberg
Browse files

axtls: call ssl_read repeatedly 

Perform more work in between sleeps. This is work around the
fact that axtls does not expose any knowledge about when work needs
to be performed. Depending on connection and how often perform is
being called this can save ~25% of time on SSL handshakes (measured
on 20ms latency connection calling perform roughly every 10ms).
parent 79a9f8c9

lib/vtls/axtls.c

+9 −8
Original line number Diff line number Diff line
@@ -398,6 +398,7 @@ CURLcode Curl_axtls_connect_nonblocking( 
{

  CURLcode conn_step;

  int ssl_fcn_return;

  int i;



 *done = FALSE;

  /* connectdata is calloc'd and connecting_state is only changed in this
@@ -414,14 +415,14 @@ CURLcode Curl_axtls_connect_nonblocking( 
  if(conn->ssl[sockindex].connecting_state == ssl_connect_2) {

    /* Check to make sure handshake was ok. */

    if(ssl_handshake_status(conn->ssl[sockindex].ssl) != SSL_OK) {

      for(i=0; i<5; i++) {

        ssl_fcn_return = ssl_read(conn->ssl[sockindex].ssl, NULL);

        if(ssl_fcn_return < 0) {

          Curl_axtls_close(conn, sockindex);

          ssl_display_error(ssl_fcn_return); /* goes to stdout. */

          return map_error_to_curl(ssl_fcn_return);

        }

      else {

        return CURLE_OK; /* Return control to caller for retries */

        return CURLE_OK;

      }

    }

    infof (conn->data, "handshake completed successfully\n");