diff options
| author | qwang12 <qwang12@6f19259b-4bc3-4df7-8a09-765794883524> | 2006-06-23 14:41:16 +0000 |
|---|---|---|
| committer | qwang12 <qwang12@6f19259b-4bc3-4df7-8a09-765794883524> | 2006-06-23 14:41:16 +0000 |
| commit | 4276d5dacfd4812abc1d7a1bd1da995d7002ee9e (patch) | |
| tree | e761b29520a4c86b05082fe2c13ca356f0bedd7a /MdePkg/Library/DxePcdLib/DxePcdLib.c | |
| parent | e88ea4239b6530720cf2d99ba1798ba9950b5f51 (diff) | |
| download | edk2-platforms-4276d5dacfd4812abc1d7a1bd1da995d7002ee9e.tar.xz | |
1) Add in support to traverse taken space
2) Remove unused import in DynamicTokenValue.java.
3) Support Byte Stream input for Pointer type Dynamic PCD entry in FPD file.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@616 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdePkg/Library/DxePcdLib/DxePcdLib.c')
| -rw-r--r-- | MdePkg/Library/DxePcdLib/DxePcdLib.c | 102 |
1 files changed, 83 insertions, 19 deletions
diff --git a/MdePkg/Library/DxePcdLib/DxePcdLib.c b/MdePkg/Library/DxePcdLib/DxePcdLib.c index c20fad2302..ee517715f5 100644 --- a/MdePkg/Library/DxePcdLib/DxePcdLib.c +++ b/MdePkg/Library/DxePcdLib/DxePcdLib.c @@ -483,28 +483,47 @@ LibPcdSet64 ( /**
Sets a buffer for the token specified by TokenNumber to
- the value specified by Value. Value is returned.
- If Value is NULL, then ASSERT().
+ the value specified by Buffer and SizeOfValue. Buffer to
+ be set is returned. The content of the buffer could be
+ overwritten if a Callback on SET is registered with this
+ TokenNumber.
+
+ If SizeOfValue is greater than the maximum
+ size support by TokenNumber, then set SizeOfValue to the
+ maximum size supported by TokenNumber and return NULL to
+ indicate that the set operation was not actually performed.
+
+ If SizeOfValue > 0 and Buffer is NULL, then ASSERT().
@param[in] TokenNumber The PCD token number to set a current value for.
+ @param[in,out] SizeOfBuffer The size, in bytes, of Buffer.
@param[in] Value A pointer to the buffer to set.
@retval VOID* Return the pointer for the buffer been set.
**/
+
VOID *
EFIAPI
LibPcdSetPtr (
- IN UINTN TokenNumber,
- IN UINTN SizeOfBuffer,
- IN VOID *Buffer
+ IN UINTN TokenNumber,
+ IN OUT UINTN *SizeOfBuffer,
+ IN VOID *Buffer
)
{
EFI_STATUS Status;
+ UINTN Size;
- ASSERT (Buffer != NULL);
+ ASSERT ((*SizeOfBuffer > 0) && Buffer == NULL);
- Status = mPcd->SetPtr (TokenNumber, SizeOfBuffer, Buffer);
+ Size = LibPcdGetSize (TokenNumber);
+
+ if (*SizeOfBuffer > Size) {
+ *SizeOfBuffer = Size;
+ return NULL;
+ }
+
+ Status = mPcd->SetPtr (TokenNumber, *SizeOfBuffer, Buffer);
ASSERT_EFI_ERROR (Status);
@@ -678,34 +697,45 @@ LibPcdSetEx64 ( /**
- Sets a buffer for the token specified by TokenNumber and
- Guid to the value specified by Value. Value is returned.
- If Guid is NULL, then ASSERT().
- If Value is NULL, then ASSERT().
+ Sets a buffer for the token specified by TokenNumber to the value specified by
+ Buffer and SizeOfValue. Buffer is returned. If SizeOfValue is greater than
+ the maximum size support by TokenNumber, then set SizeOfValue to the maximum size
+ supported by TokenNumber and return NULL to indicate that the set operation
+ was not actually performed.
+
+ If SizeOfValue > 0 and Buffer is NULL, then ASSERT().
@param[in] Guid Pointer to a 128-bit unique value that
designates which namespace to set a value from.
@param[in] TokenNumber The PCD token number to set a current value for.
- @param[in] Value The 8-bit value to set.
+ @param[in, out] SizeOfBuffer The size, in bytes, of Buffer.
+ @param[in] Buffer A pointer to the buffer to set.
- @retval VOID * Return the value been set.
+ @retval VOID * Return the pinter to the buffer been set.
**/
VOID *
EFIAPI
LibPcdSetExPtr (
- IN CONST GUID *Guid,
- IN UINTN TokenNumber,
- IN UINTN SizeOfBuffer,
- IN VOID *Buffer
+ IN CONST GUID *Guid,
+ IN UINTN TokenNumber,
+ IN OUT UINTN *SizeOfBuffer,
+ IN VOID *Buffer
)
{
- EFI_STATUS Status;
+ EFI_STATUS Status;
+ UINTN Size;
ASSERT (Guid != NULL);
ASSERT (Buffer != NULL);
- Status = mPcd->SetPtrEx (Guid, TokenNumber, SizeOfBuffer, Buffer);
+ Size = LibPcdGetExSize (Guid, TokenNumber);
+ if (*SizeOfBuffer > Size) {
+ *SizeOfBuffer = Size;
+ return NULL;
+ }
+
+ Status = mPcd->SetPtrEx (Guid, TokenNumber, *SizeOfBuffer, Buffer);
ASSERT_EFI_ERROR (Status);
@@ -849,3 +879,37 @@ LibPcdGetNextToken ( return TokenNumber;
}
+
+
+/**
+ Retrieves the next PCD token space from a token space specified by Guid.
+ Guid of NULL is reserved to mark the default local token namespace on the current
+ platform. If Guid is NULL, then the GUID of the first non-local token space of the
+ current platform is returned. If Guid is the last non-local token space,
+ then NULL is returned.
+
+ If Guid is not NULL and is not a valid token space in the current platform, then ASSERT().
+
+
+
+ @param[in] Pointer to a 128-bit unique value that designates from which namespace
+ to start the search.
+
+ @retval CONST GUID * The next valid token namespace.
+
+**/
+CONST GUID*
+EFIAPI
+LibPcdGetNextTokenSpace (
+ IN CONST GUID *Guid
+ )
+{
+ EFI_STATUS Status;
+
+ Status = mPcd->GetNextTokenSpace (&Guid);
+
+ ASSERT_EFI_ERROR (Status);
+
+ return Guid;
+}
+
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