Библиотека отладчика MySQL

Библиотека отладчика, используемая MySQL была первоначально написана Фредом Фишом (Fred Fish). Она будет очень полезна, если Вы планируете отлаживать и/или добавлять функциональные возможности к СУБД MySQL.

Автор зачем-то приводит заголовок файла dbug.c из исходников пакета (вместе со всеми комментариями к нему). Приведу его и я, поскольку это может быть продиктовано какими-либо юридическими проблемами с копирайтом. Поскольку я не юрист, привожу этот заголовок без какого-либо перевода (во избежание ошибок или искажения смысла юридического документа при переводе).

/*************************************************************************
  *                              N O T I C E                              *
  *                                                                       *
  *                 Copyright Abandoned, 1987, Fred Fish                  *
  *                                                                       *
  *   This previously copyrighted work has been placed into the  public   *
  *   domain  by  the  author  and  may be freely used for any purpose,   *
  *   private or commercial.                                              *
  *                                                                       *
  *   Because of the number of inquiries I was receiving about the  use   *
  *   of this product in commercially developed works I have decided to   *
  *   simply make it public domain to further its unrestricted use.   I   *
  *   specifically  would  be  most happy to see this material become a   *
  *   part of the standard Unix distributions by AT&T and the  Berkeley   *
  *   Computer  Science  Research Group, and a standard part of the GNU   *
  *   system from the Free Software Foundation.                           *
  *                                                                       *
  *   I would appreciate it, as a courtesy, if this notice is  left  in   *
  *   all copies and derivative works.  Thank you.                        *
  *                                                                       *
  *   The author makes no warranty of any kind  with  respect  to  this   *
  *   product  and  explicitly disclaims any implied warranties of mer-   *
  *   chantability or fitness for any particular purpose.                 *
  *************************************************************************
 */
 /*
  *  FILE
  *      dbug.c   runtime support routines for dbug package
  *
  *  SCCS
  *      @(#)dbug.c      1.25    7/25/89
  *
  *  DESCRIPTION
  *      These are the runtime support routines for the dbug package.
  *      The dbug package has two main components; the user include
  *      file containing various macro definitions, and the runtime
  *      support routines which are called from the macro expansions.
  *
  *      Externally visible functions in the runtime support module
  *      use the naming convention pattern "_db_xx...xx_", thus
  *      they are unlikely to collide with user defined function names.
  *
  *  AUTHOR(S)
  *      Fred Fish               (base code)
  *      Enhanced Software Technologies, Tempe, AZ
  *      asuvax!mcdphx!estinc!fnf
  *
  *      Binayak Banerjee        (profiling enhancements)
  *      seismo!bpa!sjuvax!bbanerje
  *
  *      Michael Widenius:
  *      DBUG_DUMP       - To dump a piece of memory.
  *      PUSH_FLAG "O"   - To be used instead of "o" if we don't
  *                        want flushing (for slow systems)
  *      Check of malloc on entry/exit (option "S")
 */