MMgc/AllocationMacros.h

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  39
  40 #ifndef __ALLOCATIONMACROS__
  41 #define __ALLOCATIONMACROS__
  42
  43 // The allocation macros. mmfx_? ones will have an alternative implementation of mapping to original new/delete implementations
  44 // the others are always on.
  45
  46 namespace MMgc
  47 {
  48     enum NewDummyOperand { kUseFixedMalloc };
  49 }
  50
  51 #ifndef MMGC_OVERRIDE_GLOBAL_NEW
  52
  53 // Used for allocating/deallocating memory with MMgc's fixed allocator.
  54 // The memory allocated using these macros will be released when the MMgc aborts due to
  55 // an unrecoverable out of memory situation.
  56 #define mmfx_new(new_data)                  new (MMgc::kUseFixedMalloc) new_data
  57 #define mmfx_new0(new_data)                 new (MMgc::kUseFixedMalloc, MMgc::kZero) new_data
  58
  59 #define mmfx_new_array(type, n)             ::MMgcConstructTaggedArray((type*)NULL, n, MMgc::kNone)
  60
  61 #define mmfx_new_opt(new_data, opts)        new (MMgc::kUseFixedMalloc, opts) new_data
  62 #define mmfx_new_array_opt(type, n, opts)   ::MMgcConstructTaggedArray((type*)NULL, n, opts)
  63
  64 #define mmfx_delete(p)                      ::MMgcDestructTaggedScalarChecked(p)
  65 #define mmfx_delete_array(p)                ::MMgcDestructTaggedArrayChecked(p)
  66
  67 #define mmfx_alloc(_siz)                    MMgc::AllocCall(_siz)
  68 #define mmfx_alloc_opt(_siz, opts)          MMgc::AllocCall(_siz, opts)
  69 #define mmfx_free(_ptr)                     MMgc::DeleteCall(_ptr)
  70
  71 #else
  72
  73 #define mmfx_new(new_data)                  new new_data
  74 #define mmfx_new0(new_data)                 new (MMgc::kZero) new_data
  75
  76 #define mmfx_new_array(type, n)             new type[n]
  77
  78 #define mmfx_new_opt(new_data, opts)        new (opts) new_data
  79 #define mmfx_new_array_opt(type, n, opts)   new (opts) type[n]
  80
  81 #define mmfx_delete(p)                      delete p
  82 #define mmfx_delete_array(p)                delete[] p
  83
  84 #define mmfx_alloc(_siz)                    new char[_siz]
  85 #define mmfx_alloc_opt(_siz, opts)          new (opts) char[_siz]
  86 #define mmfx_free(_ptr)                     delete [] (char*)_ptr
  87
  88 #endif // MMGC_OVERRIDE_GLOBAL_NEW
  89
  90 // Used to allocate memory from the system default operator new. The lifetime of these
  91 // allocations may exceed the lifetime of MMgc.
  92 #define system_new(new_data)                new new_data
  93 #define system_new_array(type, n)           new type[n]
  94 #define system_delete(p)                    delete p
  95 #define system_delete_array(p)              delete[] p
  96
  97 #endif // __ALLOCATIONMACROS__