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Diffstat (limited to 'EDK/Foundation/Library/Dxe/EfiDriverLib/EfiLibAllocate.c')
| -rw-r--r-- | EDK/Foundation/Library/Dxe/EfiDriverLib/EfiLibAllocate.c | 233 |
1 files changed, 233 insertions, 0 deletions
diff --git a/EDK/Foundation/Library/Dxe/EfiDriverLib/EfiLibAllocate.c b/EDK/Foundation/Library/Dxe/EfiDriverLib/EfiLibAllocate.c new file mode 100644 index 0000000..373d2df --- /dev/null +++ b/EDK/Foundation/Library/Dxe/EfiDriverLib/EfiLibAllocate.c @@ -0,0 +1,233 @@ +/*++ + +Copyright (c) 2004 - 2007, Intel Corporation +All rights reserved. This program and the accompanying materials +are licensed and made available under the terms and conditions of the BSD License +which accompanies this distribution. The full text of the license may be found at +http://opensource.org/licenses/bsd-license.php + +THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. + +Module Name: + + EfiLibAllocate.c + +Abstract: + + Support routines for memory allocation routines for use with drivers. + +--*/ + +#include "Tiano.h" +#include "EfiDriverLib.h" + +VOID * +EfiLibAllocatePool ( + IN UINTN AllocationSize + ) +/*++ + +Routine Description: + + Allocate BootServicesData pool. + +Arguments: + + AllocationSize - The size to allocate + +Returns: + + Pointer of the buffer allocated. + +--*/ +{ + VOID *Memory; + + Memory = NULL; + gBS->AllocatePool (EfiBootServicesData, AllocationSize, &Memory); + return Memory; +} + +VOID * +EfiLibAllocateRuntimePool ( + IN UINTN AllocationSize + ) +/*++ + +Routine Description: + + Allocate RuntimeServicesData pool. + +Arguments: + + AllocationSize - The size to allocate + +Returns: + + Pointer of the buffer allocated. + +--*/ +{ + VOID *Memory; + + Memory = NULL; + gBS->AllocatePool (EfiRuntimeServicesData, AllocationSize, &Memory); + return Memory; +} + +VOID * +EfiLibAllocateZeroPool ( + IN UINTN AllocationSize + ) +/*++ + +Routine Description: + + Allocate BootServicesData pool and zero it. + +Arguments: + + AllocationSize - The size to allocate + +Returns: + + Pointer of the buffer allocated. + +--*/ +{ + VOID *Memory; + + Memory = EfiLibAllocatePool (AllocationSize); + if (Memory != NULL) { + gBS->SetMem (Memory, AllocationSize, 0); + } + + return Memory; +} + +VOID * +EfiLibAllocateRuntimeZeroPool ( + IN UINTN AllocationSize + ) +/*++ + +Routine Description: + + Allocate RuntimeServicesData pool and zero it. + +Arguments: + + AllocationSize - The size to allocate + +Returns: + + Pointer of the buffer allocated. + +--*/ +{ + VOID *Memory; + + Memory = EfiLibAllocateRuntimePool (AllocationSize); + if (Memory != NULL) { + gBS->SetMem (Memory, AllocationSize, 0); + } + + return Memory; +} + +VOID * +EfiLibAllocateCopyPool ( + IN UINTN AllocationSize, + IN VOID *Buffer + ) +/*++ + +Routine Description: + + Allocate BootServicesData pool and use a buffer provided by + caller to fill it. + +Arguments: + + AllocationSize - The size to allocate + + Buffer - Buffer that will be filled into the buffer allocated + +Returns: + + Pointer of the buffer allocated. + +--*/ +{ + VOID *Memory; + + Memory = NULL; + gBS->AllocatePool (EfiBootServicesData, AllocationSize, &Memory); + if (Memory != NULL) { + gBS->CopyMem (Memory, Buffer, AllocationSize); + } + + return Memory; +} + +VOID * +EfiLibAllocateRuntimeCopyPool ( + IN UINTN AllocationSize, + IN VOID *Buffer + ) +/*++ + +Routine Description: + + Allocate RuntimeServicesData pool and use a buffer provided by + caller to fill it. + +Arguments: + + AllocationSize - The size to allocate + + Buffer - Buffer that will be filled into the buffer allocated + +Returns: + + Pointer of the buffer allocated. + +--*/ +{ + VOID *Memory; + + Memory = NULL; + gBS->AllocatePool (EfiRuntimeServicesData, AllocationSize, &Memory); + if (Memory != NULL) { + gBS->CopyMem (Memory, Buffer, AllocationSize); + } + + return Memory; +} + + +VOID +EfiLibSafeFreePool ( + IN VOID *Buffer + ) +/*++ + +Routine Description: + + Free pool safely (without setting back Buffer to NULL). + +Arguments: + + Buffer - The allocated pool entry to free + +Returns: + + Pointer of the buffer allocated. + +--*/ +{ + if (Buffer != NULL) { + gBS->FreePool (Buffer); + } +}
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