sravan/system76-edk2
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Add ReallocatePool(), ReallocateRuntimePool(), and ReallocateReservedPool() to BaseMemoryLib

Browse Source 
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@6679 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
mdkinney
2008-11-22 00:54:04 +00:00
parent c46484952a
commit c23904319f
2 changed files with 239 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

90
MdePkg/Include/Library/MemoryAllocationLib.h
View File

@@ -378,6 +378,96 @@ AllocateReservedCopyPool (
IN CONST VOID *Buffer
);
/**
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.