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72 lines
2.9 KiB
C
72 lines
2.9 KiB
C
/* Definition of the linkedlist object.
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*
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* Copyright 2007-2012 Rainer Gerhards and Adiscon GmbH.
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*
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* This file is part of the rsyslog runtime library.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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* -or-
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* see COPYING.ASL20 in the source distribution
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef LINKEDLIST_H_INCLUDED
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#define LINKEDLIST_H_INCLUDED
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/* this is a single entry for a parse routine. It describes exactly
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* one entry point/handler.
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* The short name is cslch (Configfile SysLine CommandHandler)
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*/
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struct llElt_s { /* config file sysline parse entry */
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struct llElt_s *pNext;
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void *pKey; /* key for this element */
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void *pData; /* user-supplied data pointer */
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};
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typedef struct llElt_s llElt_t;
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/* this is the list of known configuration commands with pointers to
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* their handlers.
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* The short name is cslc (Configfile SysLine Command)
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*/
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struct linkedList_s { /* config file sysline parse entry */
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int iNumElts; /* number of elements in list */
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rsRetVal (*pEltDestruct)(void*pData); /* destructor for user pointer in llElt_t's */
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rsRetVal (*pKeyDestruct)(void*pKey); /* destructor for key pointer in llElt_t's */
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int (*cmpOp)(void*, void*); /* pointer to key compare operation function, retval like strcmp */
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void *pKey; /* the list key (searchable, if set) */
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llElt_t *pRoot; /* list root */
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llElt_t *pLast; /* list tail */
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};
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typedef struct linkedList_s linkedList_t;
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typedef llElt_t* linkedListCookie_t; /* this type avoids exposing internals and keeps us flexible */
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/* prototypes */
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rsRetVal llInit(linkedList_t *pThis, rsRetVal (*pEltDestructor)(), rsRetVal (*pKeyDestructor)(), int (*pCmpOp)());
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rsRetVal llDestroy(linkedList_t *pThis);
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rsRetVal llDestroyRootElt(linkedList_t *pThis);
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rsRetVal llGetNextElt(linkedList_t *pThis, linkedListCookie_t *ppElt, void **ppUsr);
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rsRetVal llAppend(linkedList_t *pThis, void *pKey, void *pData);
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rsRetVal llFind(linkedList_t *pThis, void *pKey, void **ppData);
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rsRetVal llGetKey(llElt_t *pThis, void *ppData);
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rsRetVal llGetNumElts(linkedList_t *pThis, int *piCnt);
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rsRetVal llExecFunc(linkedList_t *pThis, rsRetVal (*pFunc)(void*, void*), void* pParam);
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rsRetVal llFindAndDelete(linkedList_t *pThis, void *pKey);
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/* use the macro below to define a function that will be executed by
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* llExecFunc()
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*/
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#define DEFFUNC_llExecFunc(funcName)\
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static rsRetVal funcName(void __attribute__((unused)) *pData, void __attribute__((unused)) *pParam)
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#endif /* #ifndef LINKEDLIST_H_INCLUDED */
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