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Diffstat (limited to 'linkedlist.h')
| -rw-r--r-- | linkedlist.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/linkedlist.h b/linkedlist.h new file mode 100644 index 00000000..ab44262f --- /dev/null +++ b/linkedlist.h @@ -0,0 +1,57 @@ +/* Definition of the linkedlist object. + * + * Copyright 2007 Rainer Gerhards and Adiscon GmbH. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + * A copy of the GPL can be found in the file "COPYING" in this distribution. + */ + +#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 *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*); /* destructor for user pointer in llElt_t's */ + rsRetVal (*cmpOp)(void*, void*); /* pointer to compare operation function */ + 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)(void*)); +rsRetVal llDestroy(linkedList_t *pThis); +rsRetVal llGetNextElt(linkedList_t *pThis, linkedListCookie_t *ppElt, void **ppUsr); + +#endif /* #ifndef LINKEDLIST_H_INCLUDED */ |