diff options
Diffstat (limited to 'MdePkg/Include')
| -rw-r--r-- | MdePkg/Include/Library/MemoryAllocationLib.h | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/MdePkg/Include/Library/MemoryAllocationLib.h b/MdePkg/Include/Library/MemoryAllocationLib.h index 347e45a24e..9b8e3aa62b 100644 --- a/MdePkg/Include/Library/MemoryAllocationLib.h +++ b/MdePkg/Include/Library/MemoryAllocationLib.h @@ -379,6 +379,96 @@ AllocateReservedCopyPool ( );
/**
+ Reallocates a buffer of type EfiBootServicesData.
+
+ Allocates and zeros the number bytes specified by NewSize with the memmory type
+ EfiBootServicesData. If OldBuffer is not NULL, then the smaller of OldSize and
+ NewSize bytes are copied from OldBuffer to the newly allocated buffer, and
+ OldBuffer is freed. A pointer to the newly allocated buffer is returned.
+ If NewSize is 0, then a valid buffer of 0 size is returned. If there is not
+ enough memory remaining to satisfy the request, then NULL is returned.
+
+ If OldBuffer is NULL, then ASSERT().
+ If NewSize is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
+ If OldSize is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
+
+ @param OldSize The size, in bytes, of OldBuffer.
+ @param NewSize The size, in bytes, of the buffer to reallocate.
+ @param OldBuffer The buffer to copy to the allocated buffer. This is an optional
+ parameter that may be NULL.
+
+ @return A pointer to the allocated buffer or NULL if allocation fails.
+
+**/
+VOID *
+EFIAPI
+ReallocatePool (
+ IN UINTN OldSize,
+ IN UINTN NewSize,
+ IN VOID *OldBuffer OPTIONAL
+ );
+
+/**
+ Reallocates a buffer of type EfiRuntimeServicesData.
+
+ Allocates and zeros the number bytes specified by NewSize with the memmory type
+ EfiRuntimeServicesData. If OldBuffer is not NULL, then the smaller of OldSize and
+ NewSize bytes are copied from OldBuffer to the newly allocated buffer, and
+ OldBuffer is freed. A pointer to the newly allocated buffer is returned.
+ If NewSize is 0, then a valid buffer of 0 size is returned. If there is not
+ enough memory remaining to satisfy the request, then NULL is returned.
+
+ If OldBuffer is NULL, then ASSERT().
+ If NewSize is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
+ If OldSize is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
+
+ @param OldSize The size, in bytes, of OldBuffer.
+ @param NewSize The size, in bytes, of the buffer to reallocate.
+ @param OldBuffer The buffer to copy to the allocated buffer. This is an optional
+ parameter that may be NULL.
+
+ @return A pointer to the allocated buffer or NULL if allocation fails.
+
+**/
+VOID *
+EFIAPI
+ReallocateRuntimePool (
+ IN UINTN OldSize,
+ IN UINTN NewSize,
+ IN VOID *OldBuffer OPTIONAL
+ );
+
+/**
+ Reallocates a buffer of type EfiReservedMemoryType.
+
+ Allocates and zeros the number bytes specified by NewSize with the memmory type
+ EfiReservedMemoryType. If OldBuffer is not NULL, then the smaller of OldSize and
+ NewSize bytes are copied from OldBuffer to the newly allocated buffer, and
+ OldBuffer is freed. A pointer to the newly allocated buffer is returned.
+ If NewSize is 0, then a valid buffer of 0 size is returned. If there is not
+ enough memory remaining to satisfy the request, then NULL is returned.
+
+ If OldBuffer is NULL, then ASSERT().
+ If NewSize is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
+ If OldSize is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
+
+ @param OldSize The size, in bytes, of OldBuffer.
+ @param NewSize The size, in bytes, of the buffer to reallocate.
+ @param OldBuffer The buffer to copy to the allocated buffer. This is an optional
+ parameter that may be NULL.
+
+ @return A pointer to the allocated buffer or NULL if allocation fails.
+
+**/
+VOID *
+EFIAPI
+ReallocateReservedPool (
+ IN UINTN OldSize,
+ IN UINTN NewSize,
+ IN VOID *OldBuffer OPTIONAL
+ );
+
+/**
Frees a buffer that was previously allocated with one of the pool allocation functions in the
Memory Allocation Library.
|