-/*++\r
+/** @file\r
+ Hash table operations.\r
\r
-Copyright (c) 2005 - 2007, Intel Corporation\r
-All rights reserved. This program and the accompanying materials are licensed and made available\r
+Copyright (c) 2005 - 2015, Intel Corporation. All rights reserved.<BR>\r
+This program and the accompanying materials are licensed and made available\r
under the terms and conditions of the BSD License which accompanies this\r
distribution. The full text of the license may be found at\r
http://opensource.org/licenses/bsd-license.php\r
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
+**/\r
\r
-Module Name:\r
-\r
- Hash.c\r
-\r
-Abstract:\r
+#include "Fat.h"\r
\r
- Hash table operations\r
+/**\r
\r
-Revision History\r
+ Get hash value for long name.\r
\r
---*/\r
+ @param LongNameString - The long name string to be hashed.\r
\r
-#include "Fat.h"\r
+ @return HashValue.\r
\r
+**/\r
STATIC\r
UINT32\r
FatHashLongName (\r
IN CHAR16 *LongNameString\r
)\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Get hash value for long name.\r
-\r
-Arguments:\r
-\r
- LongNameString - The long name string to be hashed.\r
-\r
-Returns:\r
-\r
- HashValue.\r
-\r
---*/\r
{\r
UINT32 HashValue;\r
CHAR16 UpCasedLongFileName[EFI_PATH_STRING_LENGTH];\r
- StrCpy (UpCasedLongFileName, LongNameString);\r
+ StrnCpyS (\r
+ UpCasedLongFileName,\r
+ ARRAY_SIZE (UpCasedLongFileName),\r
+ LongNameString,\r
+ ARRAY_SIZE (UpCasedLongFileName) - 1\r
+ );\r
FatStrUpr (UpCasedLongFileName);\r
gBS->CalculateCrc32 (UpCasedLongFileName, StrSize (UpCasedLongFileName), &HashValue);\r
return (HashValue & HASH_TABLE_MASK);\r
}\r
\r
-STATIC\r
-UINT32\r
-FatHashShortName (\r
- IN CHAR8 *ShortNameString\r
- )\r
-/*++\r
-\r
-Routine Description:\r
+/**\r
\r
Get hash value for short name.\r
\r
-Arguments:\r
+ @param ShortNameString - The short name string to be hashed.\r
\r
- ShortNameString - The short name string to be hashed.\r
+ @return HashValue\r
\r
-Returns:\r
-\r
- HashValue\r
-\r
---*/\r
+**/\r
+STATIC\r
+UINT32\r
+FatHashShortName (\r
+ IN CHAR8 *ShortNameString\r
+ )\r
{\r
UINT32 HashValue;\r
gBS->CalculateCrc32 (ShortNameString, FAT_NAME_LEN, &HashValue);\r
return (HashValue & HASH_TABLE_MASK);\r
}\r
\r
-FAT_DIRENT **\r
-FatLongNameHashSearch (\r
- IN FAT_ODIR *ODir,\r
- IN CHAR16 *LongNameString\r
- )\r
-/*++\r
-\r
-Routine Description:\r
+/**\r
\r
Search the long name hash table for the directory entry.\r
\r
-Arguments:\r
-\r
- ODir - The directory to be searched.\r
- LongNameString - The long name string to search.\r
-\r
-Returns:\r
+ @param ODir - The directory to be searched.\r
+ @param LongNameString - The long name string to search.\r
\r
- The previous long name hash node of the directory entry.\r
+ @return The previous long name hash node of the directory entry.\r
\r
---*/\r
+**/\r
+FAT_DIRENT **\r
+FatLongNameHashSearch (\r
+ IN FAT_ODIR *ODir,\r
+ IN CHAR16 *LongNameString\r
+ )\r
{\r
FAT_DIRENT **PreviousHashNode;\r
for (PreviousHashNode = &ODir->LongNameHashTable[FatHashLongName (LongNameString)];\r
return PreviousHashNode;\r
}\r
\r
-FAT_DIRENT **\r
-FatShortNameHashSearch (\r
- IN FAT_ODIR *ODir,\r
- IN CHAR8 *ShortNameString\r
- )\r
-/*++\r
-\r
-Routine Description:\r
+/**\r
\r
Search the short name hash table for the directory entry.\r
\r
-Arguments:\r
-\r
- ODir - The directory to be searched.\r
- ShortNameString - The short name string to search.\r
+ @param ODir - The directory to be searched.\r
+ @param ShortNameString - The short name string to search.\r
\r
-Returns:\r
+ @return The previous short name hash node of the directory entry.\r
\r
- The previous short name hash node of the directory entry.\r
-\r
---*/\r
+**/\r
+FAT_DIRENT **\r
+FatShortNameHashSearch (\r
+ IN FAT_ODIR *ODir,\r
+ IN CHAR8 *ShortNameString\r
+ )\r
{\r
FAT_DIRENT **PreviousHashNode;\r
for (PreviousHashNode = &ODir->ShortNameHashTable[FatHashShortName (ShortNameString)];\r
return PreviousHashNode;\r
}\r
\r
+/**\r
+\r
+ Insert directory entry to hash table.\r
+\r
+ @param ODir - The parent directory.\r
+ @param DirEnt - The directory entry node.\r
+\r
+**/\r
VOID\r
FatInsertToHashTable (\r
IN FAT_ODIR *ODir,\r
IN FAT_DIRENT *DirEnt\r
)\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Insert directory entry to hash table.\r
-\r
-Arguments:\r
-\r
- ODir - The parent directory.\r
- DirEnt - The directory entry node.\r
-\r
-Returns:\r
-\r
- None.\r
-\r
---*/\r
{\r
FAT_DIRENT **HashTable;\r
UINT32 HashTableIndex;\r
HashTable[HashTableIndex] = DirEnt;\r
}\r
\r
+/**\r
+\r
+ Delete directory entry from hash table.\r
+\r
+ @param ODir - The parent directory.\r
+ @param DirEnt - The directory entry node.\r
+\r
+**/\r
VOID\r
FatDeleteFromHashTable (\r
IN FAT_ODIR *ODir,\r
IN FAT_DIRENT *DirEnt\r
)\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Delete directory entry from hash table.\r
-\r
-Arguments:\r
-\r
- ODir - The parent directory.\r
- DirEnt - The directory entry node.\r
-\r
-Returns:\r
-\r
- None.\r
-\r
---*/\r
{\r
*FatShortNameHashSearch (ODir, DirEnt->Entry.FileName) = DirEnt->ShortNameForwardLink;\r
*FatLongNameHashSearch (ODir, DirEnt->FileString) = DirEnt->LongNameForwardLink;\r
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