Engine/source/util/tempAlloc.h

   1 //-----------------------------------------------------------------------------
   2 // Copyright (c) 2012 GarageGames, LLC
   3 //
   4 // Permission is hereby granted, free of charge, to any person obtaining a copy
   5 // of this software and associated documentation files (the "Software"), to
   6 // deal in the Software without restriction, including without limitation the
   7 // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
   8 // sell copies of the Software, and to permit persons to whom the Software is
   9 // furnished to do so, subject to the following conditions:
  10 //
  11 // The above copyright notice and this permission notice shall be included in
  12 // all copies or substantial portions of the Software.
  13 //
  14 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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  19 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  20 // IN THE SOFTWARE.
  21 //-----------------------------------------------------------------------------
  22
  23 #ifndef _TEMPALLOC_H_
  24 #define _TEMPALLOC_H_
  25
  26 #ifndef _PLATFORM_H_
  27 #  include "platform/platform.h"
  28 #endif
  29
  30
  31 template< typename T >
  32 struct TempAlloc
  33 {
  34    T* ptr;
  35    U32 size;
  36
  37    TempAlloc()
  38       : size( 0 ), ptr( 0 ) {}
  39    TempAlloc( U32 size )
  40       : size( size )
  41    {
  42       ptr = ( T* ) dMalloc( size * sizeof( T ) );
  43    }
  44    ~TempAlloc()
  45    {
  46       if( ptr )
  47          dFree( ptr );
  48    }
  49    operator T*()
  50    {
  51       return ptr;
  52    }
  53
  54 private:
  55    // Not safe.
  56    TempAlloc( const TempAlloc& ) {}
  57 };
  58
  59 #endif // _TEMPALLOC_H_