Add ReallocatePool(), ReallocateRuntimePool(), and ReallocateReservedPool() to BaseMemoryLib
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@6679 6f19259b-4bc3-4df7-8a09-765794883524
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@@ -378,6 +378,96 @@ AllocateReservedCopyPool (
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IN CONST VOID *Buffer
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);
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/**
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Reallocates a buffer of type EfiBootServicesData.
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Allocates and zeros the number bytes specified by NewSize with the memmory type
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EfiBootServicesData. If OldBuffer is not NULL, then the smaller of OldSize and
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NewSize bytes are copied from OldBuffer to the newly allocated buffer, and
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OldBuffer is freed. A pointer to the newly allocated buffer is returned.
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If NewSize is 0, then a valid buffer of 0 size is returned. If there is not
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enough memory remaining to satisfy the request, then NULL is returned.
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If OldBuffer is NULL, then ASSERT().
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If NewSize is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
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If OldSize is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
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@param OldSize The size, in bytes, of OldBuffer.
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@param NewSize The size, in bytes, of the buffer to reallocate.
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@param OldBuffer The buffer to copy to the allocated buffer. This is an optional
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parameter that may be NULL.
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@return A pointer to the allocated buffer or NULL if allocation fails.
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**/
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VOID *
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EFIAPI
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ReallocatePool (
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IN UINTN OldSize,
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IN UINTN NewSize,
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IN VOID *OldBuffer OPTIONAL
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);
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/**
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Reallocates a buffer of type EfiRuntimeServicesData.
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Allocates and zeros the number bytes specified by NewSize with the memmory type
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EfiRuntimeServicesData. If OldBuffer is not NULL, then the smaller of OldSize and
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NewSize bytes are copied from OldBuffer to the newly allocated buffer, and
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OldBuffer is freed. A pointer to the newly allocated buffer is returned.
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If NewSize is 0, then a valid buffer of 0 size is returned. If there is not
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enough memory remaining to satisfy the request, then NULL is returned.
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If OldBuffer is NULL, then ASSERT().
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If NewSize is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
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If OldSize is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
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@param OldSize The size, in bytes, of OldBuffer.
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@param NewSize The size, in bytes, of the buffer to reallocate.
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@param OldBuffer The buffer to copy to the allocated buffer. This is an optional
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parameter that may be NULL.
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@return A pointer to the allocated buffer or NULL if allocation fails.
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**/
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VOID *
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EFIAPI
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ReallocateRuntimePool (
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IN UINTN OldSize,
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IN UINTN NewSize,
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IN VOID *OldBuffer OPTIONAL
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);
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/**
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Reallocates a buffer of type EfiReservedMemoryType.
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Allocates and zeros the number bytes specified by NewSize with the memmory type
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EfiReservedMemoryType. If OldBuffer is not NULL, then the smaller of OldSize and
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NewSize bytes are copied from OldBuffer to the newly allocated buffer, and
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OldBuffer is freed. A pointer to the newly allocated buffer is returned.
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If NewSize is 0, then a valid buffer of 0 size is returned. If there is not
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enough memory remaining to satisfy the request, then NULL is returned.
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If OldBuffer is NULL, then ASSERT().
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If NewSize is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
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If OldSize is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
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@param OldSize The size, in bytes, of OldBuffer.
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@param NewSize The size, in bytes, of the buffer to reallocate.
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@param OldBuffer The buffer to copy to the allocated buffer. This is an optional
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parameter that may be NULL.
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@return A pointer to the allocated buffer or NULL if allocation fails.
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**/
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VOID *
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EFIAPI
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ReallocateReservedPool (
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IN UINTN OldSize,
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IN UINTN NewSize,
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IN VOID *OldBuffer OPTIONAL
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);
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/**
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Frees a buffer that was previously allocated with one of the pool allocation functions in the
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Memory Allocation Library.
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