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Diffstat (limited to 'runtime/linkedlist.h')
-rw-r--r-- | runtime/linkedlist.h | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/runtime/linkedlist.h b/runtime/linkedlist.h new file mode 100644 index 0000000..1cd3a14 --- /dev/null +++ b/runtime/linkedlist.h @@ -0,0 +1,71 @@ +/* Definition of the linkedlist object. + * + * Copyright 2007-2012 Rainer Gerhards and Adiscon GmbH. + * + * This file is part of the rsyslog runtime library. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * -or- + * see COPYING.ASL20 in the source distribution + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef LINKEDLIST_H_INCLUDED +#define LINKEDLIST_H_INCLUDED + +/* this is a single entry for a parse routine. It describes exactly + * one entry point/handler. + * The short name is cslch (Configfile SysLine CommandHandler) + */ +struct llElt_s { /* config file sysline parse entry */ + struct llElt_s *pNext; + void *pKey; /* key for this element */ + void *pData; /* user-supplied data pointer */ +}; +typedef struct llElt_s llElt_t; + + +/* this is the list of known configuration commands with pointers to + * their handlers. + * The short name is cslc (Configfile SysLine Command) + */ +struct linkedList_s { /* config file sysline parse entry */ + int iNumElts; /* number of elements in list */ + rsRetVal (*pEltDestruct)(void*pData); /* destructor for user pointer in llElt_t's */ + rsRetVal (*pKeyDestruct)(void*pKey); /* destructor for key pointer in llElt_t's */ + int (*cmpOp)(void*, void*); /* pointer to key compare operation function, retval like strcmp */ + void *pKey; /* the list key (searchable, if set) */ + llElt_t *pRoot; /* list root */ + llElt_t *pLast; /* list tail */ +}; +typedef struct linkedList_s linkedList_t; + +typedef llElt_t* linkedListCookie_t; /* this type avoids exposing internals and keeps us flexible */ + +/* prototypes */ +rsRetVal llInit(linkedList_t *pThis, rsRetVal (*pEltDestructor)(), rsRetVal (*pKeyDestructor)(), int (*pCmpOp)()); +rsRetVal llDestroy(linkedList_t *pThis); +rsRetVal llDestroyRootElt(linkedList_t *pThis); +rsRetVal llGetNextElt(linkedList_t *pThis, linkedListCookie_t *ppElt, void **ppUsr); +rsRetVal llAppend(linkedList_t *pThis, void *pKey, void *pData); +rsRetVal llFind(linkedList_t *pThis, void *pKey, void **ppData); +rsRetVal llGetKey(llElt_t *pThis, void *ppData); +rsRetVal llGetNumElts(linkedList_t *pThis, int *piCnt); +rsRetVal llExecFunc(linkedList_t *pThis, rsRetVal (*pFunc)(void*, void*), void* pParam); +rsRetVal llFindAndDelete(linkedList_t *pThis, void *pKey); +/* use the macro below to define a function that will be executed by + * llExecFunc() + */ +#define DEFFUNC_llExecFunc(funcName)\ + static rsRetVal funcName(void __attribute__((unused)) *pData, void __attribute__((unused)) *pParam) + +#endif /* #ifndef LINKEDLIST_H_INCLUDED */ |