seg_init.c
来自「澳洲人写的Cortex,包括uC_IP协议栈」· C语言 代码 · 共 79 行
C
79 行
<HTML><HEAD><TITLE>/home/asysweb/public_html/cortex/kernel/src/seg_init.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><b><font color='DarkGreen'>#include</font></b> <a href="ass_defs.h.FIND-INC"><font color="blue">"ass_defs.h"</font></a><b><font color='DarkGreen'>#include</font></b> <a href="mem_defs.h.FIND-INC"><font color="blue">"mem_defs.h"</font></a><b><font color='DarkGreen'>#include</font></b> <a href="seg_priv.h.FIND-INC"><font color="blue">"seg_priv.h"</font></a><b><font color='DarkGreen'>#include</font></b> <a href="sys_defs.h.FIND-INC"><font color="blue">"sys_defs.h"</font></a><font size="+1"><i>crtx_Void_t</i> <b><font color="azure1"><a name="segm_Init">segm_Init</a></font></b>(<i>crtx_Void_t</i>){</font> <i>crtx_Int16_t</i> i; <i>crtx_Int16_t</i> j; <i>crtx_Bool_t</i> Result = <a href="CRTX_TRUE.FIND-DEF">CRTX_TRUE</a>; <a href="CRTX_ASSERT.FIND-DEF">CRTX_ASSERT</a>(<a href="SEGM_MAX_NUMBER.FIND-DEF">SEGM_MAX_NUMBER</a> > 0); <font color="#6920ac">/* create lock for dynamic segment table */</font> <b>if</b> (<a href="rrlc_Create.FIND-FUNC">rrlc_Create</a>(&segm_DynSegLock_g,(<i>void</i> *)0) == <a href="CRTX_NULL.FIND-DEF">CRTX_NULL</a>) { <a href="syst_Fatal.FIND-FUNC">syst_Fatal</a>(<font color="DarkGreen">"Creation segment lock failed\n"</font>); } <b>for</b> (i=0; i < <a href="SEGM_MAX_NUMBER.FIND-DEF">SEGM_MAX_NUMBER</a> && Result; i++) { <font color="#6920ac">/* free segments are possible and in this case */</font> <font color="#6920ac">/* ad must be (crtx_Void_t *)0 */</font> <b>if</b> (segm_Table_g[i].ad == <a href="DMEM_NULL.FIND-DEF">DMEM_NULL</a>) <b>continue</b>; <b>if</b> ( segm_Table_g[i].pCreate==0 || (segm_Table_g[i].pAlloc==0 && segm_Table_g[i].pAllocSt ==0) || segm_Table_g[i].pFree==0 ) { <a href="SEGM_INIT_ERROR.FIND-DEF">SEGM_INIT_ERROR</a>((<font color="DarkGreen">"Wrong segment No %d descriptor\n"</font>,i)); Result = 0; <b>break</b>; } <font color="#6920ac">/* check links */</font> <b>for</b> (j = 0; j<segm_Table_g[i].numnext; j++) { <b>if</b> ((segm_Table_g[i].pnexts[j] >= <a href="SEGM_MAX_NUMBER.FIND-DEF">SEGM_MAX_NUMBER</a> + <a href="SEGM_MAX_DYN_NUMBER.FIND-DEF">SEGM_MAX_DYN_NUMBER</a>) || (segm_Table_g[i].pnexts[j] < -1)) { <a href="SEGM_INIT_ERROR.FIND-DEF">SEGM_INIT_ERROR</a>((<font color="DarkGreen">"Wrong next segment No %d.pnexts[%d] = %d \n"</font>, i,j,segm_Table_g[i].pnexts[j])); } } Result &= (*segm_Table_g[i].pCreate)(segm_Table_g[i].ad, segm_Table_g[i].sz, segm_Table_g[i].pcontext); } <b>for</b> (i=0; i < <a href="SEGM_MAX_DYN_NUMBER.FIND-DEF">SEGM_MAX_DYN_NUMBER</a>; i++) { segm_DynTable_g[i].ad = <a href="DMEM_NULL.FIND-DEF">DMEM_NULL</a>; segm_DynTable_g[i].pCreate = <a href="DMEM_NULL.FIND-DEF">DMEM_NULL</a>; } <b>if</b> (!Result) { <a href="syst_Fatal.FIND-FUNC">syst_Fatal</a>(<font color="DarkGreen">"%s\n"</font>,<font color="DarkGreen">"Init memory manager failed"</font>); } <b>return</b>;}</pre></BODY></HTML>⌨️ 快捷键说明
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