Update doc

This commit is contained in:
Tatsuhiro Tsujikawa 2016-10-15 18:18:52 +09:00
parent eaa9229d72
commit a591001e7b
1 changed files with 3 additions and 0 deletions

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@ -5258,6 +5258,9 @@ typedef void (*nghttp2_debug_vprintf_callback)(const char *format,
* ``DEBUGBUILD`` macro defined. If this option is not used, debug
* log is written into standard error output.
*
* For builds without ``DEBUGBUILD`` macro defined, this function is
* noop.
*
* Note that building with ``DEBUGBUILD`` may cause significant
* performance penalty to libnghttp2 because of extra processing. It
* should be used for debugging purpose only.