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Diffstat (limited to 'pvr-source/services4/srvkm/include/hash.h')
| -rwxr-xr-x | pvr-source/services4/srvkm/include/hash.h | 277 |
1 files changed, 0 insertions, 277 deletions
diff --git a/pvr-source/services4/srvkm/include/hash.h b/pvr-source/services4/srvkm/include/hash.h deleted file mode 100755 index 1ed6fd0..0000000 --- a/pvr-source/services4/srvkm/include/hash.h +++ /dev/null @@ -1,277 +0,0 @@ -/*************************************************************************/ /*! -@Title Self scaling hash tables -@Copyright Copyright (c) Imagination Technologies Ltd. All Rights Reserved -@Description Implements simple self scaling hash tables. -@License Dual MIT/GPLv2 - -The contents of this file are subject to the MIT license as set out below. - -Permission is hereby granted, free of charge, to any person obtaining a copy -of this software and associated documentation files (the "Software"), to deal -in the Software without restriction, including without limitation the rights -to use, copy, modify, merge, publish, distribute, sublicense, and/or sell -copies of the Software, and to permit persons to whom the Software is -furnished to do so, subject to the following conditions: - -The above copyright notice and this permission notice shall be included in -all copies or substantial portions of the Software. - -Alternatively, the contents of this file may be used under the terms of -the GNU General Public License Version 2 ("GPL") in which case the provisions -of GPL are applicable instead of those above. - -If you wish to allow use of your version of this file only under the terms of -GPL, and not to allow others to use your version of this file under the terms -of the MIT license, indicate your decision by deleting the provisions above -and replace them with the notice and other provisions required by GPL as set -out in the file called "GPL-COPYING" included in this distribution. If you do -not delete the provisions above, a recipient may use your version of this file -under the terms of either the MIT license or GPL. - -This License is also included in this distribution in the file called -"MIT-COPYING". - -EXCEPT AS OTHERWISE STATED IN A NEGOTIATED AGREEMENT: (A) THE SOFTWARE IS -PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING -BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR -PURPOSE AND NONINFRINGEMENT; AND (B) IN NO EVENT SHALL THE AUTHORS OR -COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER -IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN -CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. -*/ /**************************************************************************/ - -#ifndef _HASH_H_ -#define _HASH_H_ - -#include "img_types.h" -#include "osfunc.h" - -#if defined (__cplusplus) -extern "C" { -#endif - -/* - * Keys passed to the comparsion function are only guaranteed to - * be aligned on an IMG_UINTPTR_T boundary. - */ -typedef IMG_UINT32 HASH_FUNC(IMG_SIZE_T uKeySize, IMG_VOID *pKey, IMG_UINT32 uHashTabLen); -typedef IMG_BOOL HASH_KEY_COMP(IMG_SIZE_T uKeySize, IMG_VOID *pKey1, IMG_VOID *pKey2); - -typedef struct _HASH_TABLE_ HASH_TABLE; - -typedef PVRSRV_ERROR (*HASH_pfnCallback) ( - IMG_UINTPTR_T k, - IMG_UINTPTR_T v -); - -/*! -****************************************************************************** - @Function HASH_Func_Default - - @Description Hash function intended for hashing keys composed of - IMG_UINTPTR_T arrays. - - @Input uKeySize - the size of the hash key, in bytes. - @Input pKey - a pointer to the key to hash. - @Input uHashTabLen - the length of the hash table. - - @Return The hash value. -******************************************************************************/ -IMG_UINT32 HASH_Func_Default (IMG_SIZE_T uKeySize, IMG_VOID *pKey, IMG_UINT32 uHashTabLen); - -/*! -****************************************************************************** - @Function HASH_Key_Comp_Default - - @Description Compares keys composed of IMG_UINTPTR_T arrays. - - @Input uKeySize - the size of the hash key, in bytes. - @Input pKey1 - pointer to first hash key to compare. - @Input pKey2 - pointer to second hash key to compare. - - @Return IMG_TRUE - the keys match. - IMG_FALSE - the keys don't match. -******************************************************************************/ -IMG_BOOL HASH_Key_Comp_Default (IMG_SIZE_T uKeySize, IMG_VOID *pKey1, IMG_VOID *pKey2); - -/*! -****************************************************************************** - @Function HASH_Create_Extended - - @Description Create a self scaling hash table, using the supplied - key size, and the supllied hash and key comparsion - functions. - - @Input uInitialLen - initial and minimum length of the - hash table, where the length refers to the number - of entries in the hash table, not its size in - bytes. - @Input uKeySize - the size of the key, in bytes. - @Input pfnHashFunc - pointer to hash function. - @Input pfnKeyComp - pointer to key comparsion function. - - @Return IMG_NULL or hash table handle. -******************************************************************************/ -HASH_TABLE * HASH_Create_Extended (IMG_UINT32 uInitialLen, IMG_SIZE_T uKeySize, HASH_FUNC *pfnHashFunc, HASH_KEY_COMP *pfnKeyComp); - -/*! -****************************************************************************** - @Function HASH_Create - - @Description Create a self scaling hash table with a key - consisting of a single IMG_UINTPTR_T, and using - the default hash and key comparison functions. - - @Input uInitialLen - initial and minimum length of the - hash table, where the length refers to the - number of entries in the hash table, not its size - in bytes. - - @Return IMG_NULL or hash table handle. -******************************************************************************/ -HASH_TABLE * HASH_Create (IMG_UINT32 uInitialLen); - -/*! -****************************************************************************** - @Function HASH_Delete - - @Description Delete a hash table created by HASH_Create_Extended or - HASH_Create. All entries in the table must have been - removed before calling this function. - - @Input pHash - hash table - - @Return None -******************************************************************************/ -IMG_VOID HASH_Delete (HASH_TABLE *pHash); - -/*! -****************************************************************************** - @Function HASH_Insert_Extended - - @Description Insert a key value pair into a hash table created - with HASH_Create_Extended. - - @Input pHash - the hash table. - @Input pKey - pointer to the key. - @Input v - the value associated with the key. - - @Return IMG_TRUE - success. - IMG_FALSE - failure. -******************************************************************************/ -IMG_BOOL HASH_Insert_Extended (HASH_TABLE *pHash, IMG_VOID *pKey, IMG_UINTPTR_T v); - -/*! -****************************************************************************** - @Function HASH_Insert - - @Description Insert a key value pair into a hash table created with - HASH_Create. - - @Input pHash - the hash table. - @Input k - the key value. - @Input v - the value associated with the key. - - @Return IMG_TRUE - success. - IMG_FALSE - failure. -******************************************************************************/ -IMG_BOOL HASH_Insert (HASH_TABLE *pHash, IMG_UINTPTR_T k, IMG_UINTPTR_T v); - -/*! -****************************************************************************** - @Function HASH_Remove_Extended - - @Description Remove a key from a hash table created with - HASH_Create_Extended. - - @Input pHash - the hash table. - @Input pKey - pointer to key. - - @Return 0 if the key is missing, or the value associated - with the key. -******************************************************************************/ -IMG_UINTPTR_T HASH_Remove_Extended(HASH_TABLE *pHash, IMG_VOID *pKey); - -/*! -****************************************************************************** - @Function HASH_Remove - - @Description Remove a key value pair from a hash table created - with HASH_Create. - - @Input pHash - the hash table - @Input k - the key - - @Return 0 if the key is missing, or the value associated - with the key. -******************************************************************************/ -IMG_UINTPTR_T HASH_Remove (HASH_TABLE *pHash, IMG_UINTPTR_T k); - -/*! -****************************************************************************** - @Function HASH_Retrieve_Extended - - @Description Retrieve a value from a hash table created with - HASH_Create_Extended. - - @Input pHash - the hash table. - @Input pKey - pointer to the key. - - @Return 0 if the key is missing, or the value associated with - the key. -******************************************************************************/ -IMG_UINTPTR_T HASH_Retrieve_Extended (HASH_TABLE *pHash, IMG_VOID *pKey); - -/*! -****************************************************************************** - @Function HASH_Retrieve - - @Description Retrieve a value from a hash table created with - HASH_Create. - - @Input pHash - the hash table - @Input k - the key - - @Return 0 if the key is missing, or the value associated with - the key. -******************************************************************************/ -IMG_UINTPTR_T HASH_Retrieve (HASH_TABLE *pHash, IMG_UINTPTR_T k); - -/*! -****************************************************************************** - @Function HASH_Interate - - @Description Iterate over every entry in the hash table - - @Input pHash - the old hash table - @Input HASH_pfnCallback - the size of the old hash table - - @Return Callback error if any, otherwise PVRSRV_OK -******************************************************************************/ -PVRSRV_ERROR HASH_Iterate(HASH_TABLE *pHash, HASH_pfnCallback pfnCallback); - -#ifdef HASH_TRACE -/*! -****************************************************************************** - @Function HASH_Dump - - @Description Dump out some information about a hash table. - - @Input pHash - the hash table - - @Return None -******************************************************************************/ -IMG_VOID HASH_Dump (HASH_TABLE *pHash); -#endif - -#if defined (__cplusplus) -} -#endif - -#endif /* _HASH_H_ */ - -/****************************************************************************** - End of file (hash.h) -******************************************************************************/ - - |