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Viewing changes to drizzled/check_stack_overrun.cc

  • Committer: Brian Aker
  • Date: 2009-01-24 09:43:35 UTC
  • Revision ID: brian@gir-3.local-20090124094335-6qdtvc35gl5fvivz
Adding in an example singe thread scheduler

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drizzled/check_stack_overrun.cc
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 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
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 */
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#include "config.h"
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#include "drizzled/internal/my_sys.h"
 
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#include <drizzled/global.h>
 
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#include <mysys/my_sys.h>
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#include <drizzled/definitions.h>
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#include <drizzled/session.h>
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#include <drizzled/error.h>
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#include <drizzled/check_stack_overrun.h>
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namespace drizzled
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{
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/****************************************************************************
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        Check stack size; Send error if there isn't enough stack to continue
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****************************************************************************/
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#if defined(STACK_DIRECTION) && (STACK_DIRECTION < 0)
 
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#if STACK_DIRECTION < 0
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#define used_stack(A,B) (long) (A - B)
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#else
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#define used_stack(A,B) (long) (B - A)
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  if ((stack_used=used_stack(session->thread_stack,(char*) &stack_used)) >=
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      (long) (my_thread_stack_size - margin))
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  {
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    my_printf_error(ER_STACK_OVERRUN_NEED_MORE, ER(ER_STACK_OVERRUN_NEED_MORE),
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                    MYF(ME_FATALERROR),
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                    stack_used,my_thread_stack_size,margin);
 
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    sprintf(errbuff[0],ER(ER_STACK_OVERRUN_NEED_MORE),
 
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            stack_used,my_thread_stack_size,margin);
 
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    my_message(ER_STACK_OVERRUN_NEED_MORE,errbuff[0],MYF(ME_FATALERROR));
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    return true;
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  }
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  return false;
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}
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} /* namespace drizzled */