Page 96 - DCAP408_WEB_PROGRAMMING

Windows Programming

Notes The function call for GlobalLock remains as in portable memory blocks.
A discardable resource can be substituted by reloading the resource form the resource segment
of the module. This occurs transparently. Specifically, if you call a resource loading function and
the obtainable copy of the resource has been discarded, a new copy will be loaded.

Self Assessment

Fill in the blanks:
14. Windows can reallocate a .................... memory block to a 0 length when it requires space
to gratify another allotment request.
15. A discardable resource can be substituted by .................... the resource form the resource
segment of the module.

5.7 Summary

 Global memory exists in device memory and device memory is used through 32-, 64-, or
128-byte memory transactions.

 Global memory instructions assist reading or writing words of size equal to 1, 2, 4, 8, or 16
bytes.
 Local memory accesses only happen for some automatic variables.

 On devices of compute capability 2.0, local memory accesses are at all times cached in L1
and L2 in the similar manner as global memory accesses
 Fixed size memory blocks allocation algorithm has been established to permit technique
of memory allocation in static time, separately to number of allocated blocks.
 All of the allocated blocks have a fixed size, defined throughout memory initialization.
 The ST_USE_FIXMEM constant comprises information whether functions for fixed size
memory blocks allocation are incorporated or expelled from compilation.
 The realloc function modifies the size of the block whose address is ptr to be newsize.
 The LocalReAlloc function modifies the size or the attributes of a stated local memory
object.
 Windows can reallocate a discardable memory block to a 0 length when it requires space
to gratify another allotment request.
5.8 Keywords

Discardable memory block: Windows can reallocate a discardable memory block to a 0 length
when it requires space to gratify another allotment request.

LocalReAlloc: The LocalReAlloc function modifies the size or the attributes of a stated local
memory object.
realloc: The realloc function modifies the size of the block whose address is ptr to be newsize.

ST_USE_FIXMEM: The ST_USE_FIXMEM constant comprises information whether functions
for fixed size memory blocks allocation are incorporated or expelled from compilation.

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