fsp_misc.c
来自「澳洲人写的Cortex,包括uC_IP协议栈」· C语言 代码 · 共 125 行
C
125 行
<HTML><HEAD><TITLE>/home/asysweb/public_html/cortex/kernel/src/fsp_misc.c</TITLE></HEAD><BODY><pre><font color="#6920ac">/*************************************************************************/</font><font color="#6920ac">/* */</font><font color="#6920ac">/* Copyright (c) 1997-1999 Australian Real Time Embedded Systems */</font><font color="#6920ac">/* */</font><font color="#6920ac">/* PROPRIETARY RIGHTS of Australian Real Time Embedded Systems */</font><font color="#6920ac">/* are involved in the subject matter of this material. All reproduction,*/</font><font color="#6920ac">/* manufacturing, use, and sales rights pertaining to this subject matter*/</font><font color="#6920ac">/* are governed by the license agreement. The recipient of this software */</font><font color="#6920ac">/* implicitly accepts the terms of the license. */</font><font color="#6920ac">/* */</font><font color="#6920ac">/*************************************************************************/</font><font color="#6920ac">/************************************************************************** * * FILE NAME * * fsp_misc.c * * SYSTEM COMPONENT * * Fixed size memory pool * * DESCRIPTION * * This file contains the miscellaneous services for fixed size memory * pool. * * SERVICES * * fsmp_Validate pool validation routine * * SCCS HISTORY * * @(#)fsp_misc.c 1.4, 01/25/99, 00:32:15 * * AUTHOR * * Vadim N. Azarovsky * * CREATED * * 29-May-1998 by Vadim N. Azarovsky * * REVISION HISTORY * * NAME DATE REMARKS * **************************************************************************/</font><b><font color='DarkGreen'>#include</font></b> <a href="fsp_priv.h.FIND-INC"><font color="blue">"fsp_priv.h"</font></a><b><font color='DarkGreen'>#include</font></b> <a href="ass_defs.h.FIND-INC"><font color="blue">"ass_defs.h"</font></a><font color="#6920ac">/* simple procedure to validate integrity of memory pool */</font><font size="+1"><i>crtx_Boolean_t</i> <b><font color="azure1"><a name="fsmp_Validate">fsmp_Validate</a></font></b>( <i>fsmp_Pool_t</i> *pPool_a){</font><font color="#6920ac">/********************* * LOCAL VARIABLES * *********************/</font> <i>crtx_Int_t</i> FreeListSize; <i>crtx_Int_t</i> i; <i>fsmp_Block_t</i> *pBlock;<font color="#6920ac">/********************* * PROCEDURE LOGIC * *********************/</font> <a href="CRTX_ASSERT.FIND-DEF">CRTX_ASSERT</a>(pPool_a) <a href="CRTX_ASSERT.FIND-DEF">CRTX_ASSERT</a>(<a href="FSMP_CHECK_POOL_ID.FIND-DEF">FSMP_CHECK_POOL_ID</a>(pPool_a)) <b>if</b> ((pPool_a->pFreeList == <a href="CRTX_NULL.FIND-DEF">CRTX_NULL</a>) && (pPool_a->NrAllocated == pPool_a->NrBlocks)) <b>return</b> <a href="CRTX_TRUE.FIND-DEF">CRTX_TRUE</a>; <b>if</b> ((pPool_a->NrAllocated == pPool_a->NrBlocks) && (pPool_a->pFreeList != <a href="CRTX_NULL.FIND-DEF">CRTX_NULL</a>)) <a href="CRTX_EXCEPTION.FIND-DEF">CRTX_EXCEPTION</a> FreeListError1; <b>if</b> ((pPool_a->NrAllocated != pPool_a->NrBlocks) && (pPool_a->pFreeList == <a href="CRTX_NULL.FIND-DEF">CRTX_NULL</a>)) <a href="CRTX_EXCEPTION.FIND-DEF">CRTX_EXCEPTION</a> FreeListError2; <b>if</b> ((FreeListSize = pPool_a->NrBlocks - pPool_a->NrAllocated) < 0) <a href="CRTX_EXCEPTION.FIND-DEF">CRTX_EXCEPTION</a> FreeListSizeError; pBlock = pPool_a->pFreeList; <b>for</b> (i=1; i<FreeListSize; i++) { <b>if</b> (pBlock->pNext == <a href="CRTX_NULL.FIND-DEF">CRTX_NULL</a>) <a href="CRTX_EXCEPTION.FIND-DEF">CRTX_EXCEPTION</a> UnexpectedEndOfList; pBlock = pBlock->pNext; } <b>if</b> (pBlock->pNext != <a href="CRTX_NULL.FIND-DEF">CRTX_NULL</a>) <a href="CRTX_EXCEPTION.FIND-DEF">CRTX_EXCEPTION</a> EndOfListNotNull; <b>return</b> <a href="CRTX_TRUE.FIND-DEF">CRTX_TRUE</a>;<font color="#6920ac">/************************ * EXCEPTION HANDLING * ************************/</font><font color="blue">FreeListError1:</font> <b>return</b> <a href="CRTX_FALSE.FIND-DEF">CRTX_FALSE</a>;<font color="blue">FreeListError2:</font> <b>return</b> <a href="CRTX_FALSE.FIND-DEF">CRTX_FALSE</a>;<font color="blue">FreeListSizeError:</font> <b>return</b> <a href="CRTX_FALSE.FIND-DEF">CRTX_FALSE</a>;<font color="blue">UnexpectedEndOfList:</font> <b>return</b> <a href="CRTX_FALSE.FIND-DEF">CRTX_FALSE</a>;<font color="blue">EndOfListNotNull:</font> <b>return</b> <a href="CRTX_FALSE.FIND-DEF">CRTX_FALSE</a>;}</pre></BODY></HTML>⌨️ 快捷键说明
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