ext_core.c
来自「澳洲人写的Cortex,包括uC_IP协议栈」· C语言 代码 · 共 147 行
C
147 行
<HTML><HEAD><TITLE>/home/asysweb/public_html/cortex/kernel/src/ext_core.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 * * ext_core.c * * SYSTEM COMPONENT * * Extensions module * * DESCRIPTION * * This file contains all core services for extensions module * * SERVICES * * exts_Create * exts_Delete * * SCCS HISTORY * * @(#)ext_core.c 1.1, 12/22/99, 16:43:33 * * AUTHOR * * Vadim N. Azarovsky * * CREATED * * 14-Dec-1999 by Vadim N. Azarovsky * * REVISION HISTORY * * NAME DATE REMARKS * **************************************************************************/</font><b><font color='DarkGreen'>#include</font></b> <a href="ext_priv.h.FIND-INC"><font color="blue">"ext_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><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="thr_priv.h.FIND-INC"><font color="blue">"thr_priv.h"</font></a><font size="+1"><i>exts_ECB_t</i> *<b><font color="azure1"><a name="exts_Create">exts_Create</a></font></b>( <i>exts_Handlers_t</i> *pHandlers_a __attribute__((__unused__))){</font><font color="#6920ac">/********************* * LOCAL VARIABLES * *********************/</font> <i>exts_ECB_t</i> *pECB = <a href="CRTX_NULL.FIND-DEF">CRTX_NULL</a>;<font color="#6920ac">/********************* * PROCEDURE LOGIC * *********************/</font><b><font color='DarkGreen'>#if</font></b><font color="maroon"> EXTS_LEVEL > 0</font> <b>if</b> (pHandlers_a) { pECB = <a href="dmem_Alloc.FIND-FUNC">dmem_Alloc</a>(<a href="DMEM_SYSTEM_SEGMENT.FIND-DEF">DMEM_SYSTEM_SEGMENT</a>, <i>sizeof</i>(<i>exts_ECB_t</i>), <i>sizeof</i>(<i>crtx_Unsigned_t</i>)); <b>if</b> ((<i>crtx_Void_t</i>*)pECB != (<i>crtx_Void_t</i>*)<a href="DMEM_ILLEGAL.FIND-DEF">DMEM_ILLEGAL</a>) { <font color="#6920ac">/* set block ID */</font> <a href="EXTS_SET_BLOCK_ID.FIND-DEF">EXTS_SET_BLOCK_ID</a>(pECB); pECB->Handlers = *pHandlers_a; <font color="#6920ac">/* put a new extension block on the list */</font> <a href="thrd_Disable.FIND-FUNC">thrd_Disable</a>(); <font color="#6920ac">/* disable preemption */</font> <a href="rlst_AddTail.FIND-FUNC">rlst_AddTail</a>(&exts_Environ_g.List, &pECB->Node); <a href="thrd_Enable.FIND-FUNC">thrd_Enable</a>(); <font color="#6920ac">/* enable preemption */</font> } }<b><font color='DarkGreen'>#endif</font></b><font color="maroon"> <font color="#6920ac">/* EXTS_LEVEL > 0 */</font></font> <b>return</b> pECB;<font color="#6920ac">/************************ * EXCEPTION HANDLING * ************************/</font> <font color="#6920ac">/* None */</font>}<font size="+1"><i>crtx_Status_t</i> <b><font color="azure1"><a name="exts_Delete">exts_Delete</a></font></b>( <i>exts_ECB_t</i> *pECB_a __attribute__((__unused__))){</font><font color="#6920ac">/********************* * LOCAL VARIABLES * *********************/</font> <font color="#6920ac">/* None */</font><font color="#6920ac">/********************* * PROCEDURE LOGIC * *********************/</font><b><font color='DarkGreen'>#if</font></b><font color="maroon"> EXTS_LEVEL > 0</font><b><font color='DarkGreen'>#if</font></b><font color="maroon"> ENVI_CRTX_ERR_CHECK_LEVEL != 0</font> <b>if</b> (!<a href="EXTS_CHECK_BLOCK_ID.FIND-DEF">EXTS_CHECK_BLOCK_ID</a>(pECB_a)) <b>return</b> <a href="EXTS_ERR_INVALID_BLOCK.FIND-DEF">EXTS_ERR_INVALID_BLOCK</a>;<b><font color='DarkGreen'>#endif</font></b><font color="maroon"></font> <a href="thrd_Disable.FIND-FUNC">thrd_Disable</a>(); <font color="#6920ac">/* disable preemption */</font> <a href="rlst_Remove.FIND-FUNC">rlst_Remove</a>(&pECB_a->Node); <a href="thrd_Enable.FIND-FUNC">thrd_Enable</a>(); <font color="#6920ac">/* enable preemption */</font> <a href="CRTX_SET_NO_ID.FIND-DEF">CRTX_SET_NO_ID</a>(pECB_a); <a href="dmem_Free.FIND-FUNC">dmem_Free</a>(<a href="DMEM_SYSTEM_SEGMENT.FIND-DEF">DMEM_SYSTEM_SEGMENT</a>, (<i>crtx_Void_t</i>*)pECB_a, <i>sizeof</i>(<i>exts_ECB_t</i>)); <b>return</b> <a href="EXTS_SUCCESS.FIND-DEF">EXTS_SUCCESS</a>;<b><font color='DarkGreen'>#else</font></b><font color="maroon"></font> <b>return</b> <a href="EXTS_ERR_DISABLED.FIND-DEF">EXTS_ERR_DISABLED</a>;<b><font color='DarkGreen'>#endif</font></b><font color="maroon"></font><font color="#6920ac">/************************ * EXCEPTION HANDLING * ************************/</font> <font color="#6920ac">/* None */</font>}</pre></BODY></HTML>⌨️ 快捷键说明
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