9bc187d4c6
defines. These were just aliases, no reason to keep them. * Changed the comments of the include files that expose the UPnP API to use only C89 comments and no C99 comments. git-svn-id: https://pupnp.svn.sourceforge.net/svnroot/pupnp/trunk@198 119443c7-1b9e-41f8-b6fc-b9c35fce742c
141 lines
5.0 KiB
C
141 lines
5.0 KiB
C
/*******************************************************************************
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*
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* Copyright (c) 2000-2003 Intel Corporation
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* * Neither name of Intel Corporation nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL INTEL OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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******************************************************************************/
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#ifndef FREE_LIST_H
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#define FREE_LIST_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "ithread.h"
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#include <errno.h>
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/****************************************************************************
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* Name: FreeListNode
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*
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* Description:
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* free list node. points to next free item.
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* memory for node is borrowed from allocated items.
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* Internal Use Only.
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*****************************************************************************/
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typedef struct FREELISTNODE
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{
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struct FREELISTNODE *next;
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} FreeListNode;
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/****************************************************************************
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* Name: FreeList
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*
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* Description:
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* Stores head and size of free list, as well as mutex for protection.
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* Internal Use Only.
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*****************************************************************************/
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typedef struct FREELIST
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{
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FreeListNode *head;
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size_t element_size;
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int maxFreeListLength;
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int freeListLength;
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}FreeList;
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/****************************************************************************
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* Function: FreeListInit
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*
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* Description:
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* Initializes Free List. Must be called first.
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* And only once for FreeList.
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* Parameters:
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* free_list - must be valid, non null, pointer to a linked list.
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* size_t - size of elements to store in free list
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* maxFreeListSize - max size that the free list can grow to
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* before returning memory to O.S.
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* Returns:
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* 0 on success. Nonzero on failure.
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* Always returns 0.
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*****************************************************************************/
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int FreeListInit(FreeList *free_list,
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size_t elementSize,
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int maxFreeListSize);
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/****************************************************************************
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* Function: FreeListAlloc
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*
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* Description:
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* Allocates chunk of set size.
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* If a free item is available in the list, returnes the stored item.
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* Otherwise calls the O.S. to allocate memory.
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* Parameters:
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* free_list - must be valid, non null, pointer to a linked list.
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* Returns:
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* Non NULL on success. NULL on failure.
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*****************************************************************************/
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void * FreeListAlloc (FreeList *free_list);
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/****************************************************************************
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* Function: FreeListFree
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*
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* Description:
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* Returns an item to the Free List.
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* If the free list is smaller than the max size than
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* adds the item to the free list.
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* Otherwise returns the item to the O.S.
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* Parameters:
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* free_list - must be valid, non null, pointer to a linked list.
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* Returns:
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* 0 on success. Nonzero on failure.
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* Always returns 0.
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*****************************************************************************/
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int FreeListFree (FreeList *free_list,void * element);
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/****************************************************************************
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* Function: FreeListDestroy
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*
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* Description:
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* Releases the resources stored with the free list.
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* Parameters:
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* free_list - must be valid, non null, pointer to a linked list.
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* Returns:
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* 0 on success. Nonzero on failure.
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* Always returns 0.
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*****************************************************************************/
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int FreeListDestroy (FreeList *free_list);
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#ifdef __cplusplus
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}
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#endif
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#endif /* FREE_LIST_H */
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