pri_defs.h
来自「澳洲人写的Cortex,包括uC_IP协议栈」· C头文件 代码 · 共 179 行
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<HTML><HEAD><TITLE>/home/asysweb/public_html/cortex/kernel/src/pri_defs.h</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 * * pri_defs.h * * SYSTEM COMPONENT * * Priority Management Compenent (PRIO) * * DESCRIPTION * * This file contains data and constant definitions for * Priority Management Compenent. * * SCCS HISTORY * * @(#)pri_defs.h 1.7, 12/22/99, 16:05:23 * * AUTHOR * * Vadim N. Azarovsky * * CREATED * * 10-Apr-1998 by Vadim N. Azarovsky * * REVISION HISTORY * * NAME DATE REMARKS * **************************************************************************/</font><b><font color='DarkGreen'>#ifndef</font></b><font color="maroon"> __PRI_DEFS__H</font><b><font color='DarkGreen'>#define</font></b> <font color="maroon"><a name="__PRI_DEFS__H">__PRI_DEFS__H</a></font><b><font color='DarkGreen'>#ifdef</font></b><font color="maroon"> __cplusplus</font><i>extern</i> <font color="DarkGreen">"C"</font> {<b><font color='DarkGreen'>#endif</font></b><font color="maroon"> <font color="#6920ac">/* __cplusplus */</font></font><b><font color='DarkGreen'>#include</font></b> <a href="crt_defs.h.FIND-INC"><font color="blue">"crt_defs.h"</font></a><font color="#6920ac">/*********************** * GLOBAL CONSTANSTS * ***********************/</font><b><font color='DarkGreen'>#define</font></b> <font color="maroon"><a name="PRIO_MIN">PRIO_MIN</a></font> 0 <font color="#6920ac">/* minimum priority level value */</font><b><font color='DarkGreen'>#define</font></b> <font color="maroon"><a name="PRIO_MAX">PRIO_MAX</a></font> 63 <font color="#6920ac">/* maximim priority level value */</font><b><font color='DarkGreen'>#define</font></b> <font color="maroon"><a name="PRIO_LEVELS">PRIO_LEVELS</a></font> 64 <font color="#6920ac">/* total number of priority levels */</font><b><font color='DarkGreen'>#define</font></b> <font color="maroon"><a name="PRIO_GROUPS">PRIO_GROUPS</a></font> 8 <font color="#6920ac">/* number priority groups */</font><b><font color='DarkGreen'>#define</font></b> <font color="maroon"><a name="PRIO_PER_GROUP">PRIO_PER_GROUP</a></font> 8 <font color="#6920ac">/* number priorities per group */</font><b><font color='DarkGreen'>#define</font></b> <font color="maroon"><a name="PRIO_LOWEST">PRIO_LOWEST</a></font> PRIO_MIN <font color="#6920ac">/* lowest priority level */</font><b><font color='DarkGreen'>#define</font></b> <font color="maroon"><a name="PRIO_HIGHEST">PRIO_HIGHEST</a></font> PRIO_MAX <font color="#6920ac">/* highest priority level */</font><font color="#6920ac">/***************** * GLOBAL MACROS * *****************/</font><font color="#6920ac">/* calculate priority group number for priority level */</font><b><font color='DarkGreen'>#define</font></b> <font color="maroon"><a name="PRIO_GROUP_NUM">PRIO_GROUP_NUM</a></font>(_level) ((_level)>>3)<font color="#6920ac">/* calculate priority sub-level (prioty number within group) */</font><b><font color='DarkGreen'>#define</font></b> <font color="maroon"><a name="PRIO_SUB_LEVEL">PRIO_SUB_LEVEL</a></font>(_level) ((_level)&0x7)<font color="#6920ac">/* calculate group priority mask */</font><b><font color='DarkGreen'>#define</font></b> <font color="maroon"><a name="PRIO_GROUP_MASK">PRIO_GROUP_MASK</a></font>(_level) CRTX_NUM_TO_MASK(PRIO_GROUP_NUM(_level))<font color="#6920ac">/* calculate priority sub-level mask */</font><b><font color='DarkGreen'>#define</font></b> <font color="maroon"><a name="PRIO_SUB_LEVEL_MASK">PRIO_SUB_LEVEL_MASK</a></font>(_level) \ <a href="CRTX_NUM_TO_MASK.FIND-DEF">CRTX_NUM_TO_MASK</a>(<a href="#PRIO_SUB_LEVEL">PRIO_SUB_LEVEL</a>(_level))<font color="#6920ac">/* calculate priority level from group number and sub-level number */</font><b><font color='DarkGreen'>#define</font></b> <font color="maroon"><a name="PRIO_LEVEL">PRIO_LEVEL</a></font>(_group,_sublevel) \ (((_group)<<3)+(_sublevel))<font color="#6920ac">/* initialise priority information block according priority level */</font><b><font color='DarkGreen'>#define</font></b> <font color="maroon"><a name="PRIO_SET_INFO">PRIO_SET_INFO</a></font>(_info,_level) \ (_info)->Level = (_level); \ (_info)->SetGroupMask = <a href="#PRIO_GROUP_MASK">PRIO_GROUP_MASK</a>(_level); \ (_info)->ClrGroupMask = ~(_info)->SetGroupMask; \ (_info)->SetPrioMask = <a href="#PRIO_SUB_LEVEL_MASK">PRIO_SUB_LEVEL_MASK</a>(_level); \ (_info)->ClrPrioMask = ~(_info)->SetPrioMask; \ (_info)->pGroup = &prio_GroupMasks_g[<a href="#PRIO_GROUP_NUM">PRIO_GROUP_NUM</a>(_level)]<font color="#6920ac">/* mark priority queue as empty */</font><b><font color='DarkGreen'>#define</font></b> <font color="maroon"><a name="PRIO_EMPTY">PRIO_EMPTY</a></font>(_info) \ *(_info)->pGroup &= (_info)->ClrPrioMask; \ <b>if</b> (*(_info)->pGroup == 0) prio_Groups_g &= (_info)->ClrGroupMask; \ prio_Highest_g = <a href="#PRIO_CALC_HIGHEST_READY">PRIO_CALC_HIGHEST_READY</a>()<font color="#6920ac">/* mark priority queue as not empty */</font><b><font color='DarkGreen'>#define</font></b> <font color="maroon"><a name="PRIO_NOT_EMPTY">PRIO_NOT_EMPTY</a></font>(_info) \ *(_info)->pGroup |= (_info)->SetPrioMask; \ prio_Groups_g |= (_info)->SetGroupMask; \ prio_Highest_g = <a href="#PRIO_CALC_HIGHEST_READY">PRIO_CALC_HIGHEST_READY</a>()<font color="#6920ac">/* get number of highest priority group */</font><b><font color='DarkGreen'>#define</font></b> <font color="maroon"><a name="PRIO_HIGHEST_GROUP">PRIO_HIGHEST_GROUP</a></font>() \ <a href="CRTX_GET_MSB.FIND-DEF">CRTX_GET_MSB</a>(prio_Groups_g)<font color="#6920ac">/* get number of highest priority sub-level */</font><b><font color='DarkGreen'>#define</font></b> <font color="maroon"><a name="PRIO_HIGHEST_SUB_LEVEL">PRIO_HIGHEST_SUB_LEVEL</a></font>() \ <a href="CRTX_GET_MSB.FIND-DEF">CRTX_GET_MSB</a>(prio_GroupMasks_g[<a href="#PRIO_HIGHEST_GROUP">PRIO_HIGHEST_GROUP</a>()])<font color="#6920ac">/* calculate highest priorty level */</font><b><font color='DarkGreen'>#define</font></b> <font color="maroon"><a name="PRIO_CALC_HIGHEST_READY">PRIO_CALC_HIGHEST_READY</a></font>() \ ((prio_Groups_g) ? <a href="#PRIO_LEVEL">PRIO_LEVEL</a>(<a href="#PRIO_HIGHEST_GROUP">PRIO_HIGHEST_GROUP</a>(), \ <a href="#PRIO_HIGHEST_SUB_LEVEL">PRIO_HIGHEST_SUB_LEVEL</a>()) : 0)<font color="#6920ac">/* get highest priorty level */</font><b><font color='DarkGreen'>#define</font></b> <font color="maroon"><a name="PRIO_HIGHEST_READY">PRIO_HIGHEST_READY</a></font>() prio_Highest_g<font color="#6920ac">/*********************** * GLOBAL DATA TYPES * ***********************/</font><font color="#6920ac">/* priority mask */</font><i><a name="prio_Mask_t">typedef</a></i> <i>crtx_Byte_t</i> <i><font color='DarkBlue'>prio_Mask_t</font></i>;<font color="#6920ac">/* priority level */</font><i><a name="prio_Level_t">typedef</a></i> <i>crtx_Int_t</i> <i><font color='DarkBlue'>prio_Level_t</font></i>;<font color="#6920ac">/* prioriy control block */</font><i><a name="prio_Info_t">typedef</a></i> <i>struct</i> { <i>prio_Level_t</i> Level; <font color="#6920ac">/* prority level */</font> <i>prio_Mask_t</i> SetGroupMask; <font color="#6920ac">/* priority group set mask */</font> <i>prio_Mask_t</i> SetPrioMask; <font color="#6920ac">/* priority set mask (within group) */</font> <i>prio_Mask_t</i> ClrGroupMask; <font color="#6920ac">/* priority group clear mask */</font> <i>prio_Mask_t</i> ClrPrioMask; <font color="#6920ac">/* priority clear mask (within group) */</font> <i>prio_Mask_t</i> *pGroup; <font color="#6920ac">/* pointer to priority group */</font>} <i><font color='DarkBlue'>prio_Info_t</font></i>;<font color="#6920ac">/***************** * GLOBAL DATA * *****************/</font><font color="#6920ac">/* Prioriy group mask specifies groups ready to run */</font><i>extern</i> <i>prio_Mask_t</i> prio_Groups_g;<font color="#6920ac">/* Array of group masks specifies non-empty prioroty queues */</font><i>extern</i> <i>prio_Mask_t</i> prio_GroupMasks_g[<a href="#PRIO_GROUPS">PRIO_GROUPS</a>];<font color="#6920ac">/* highest priority level */</font><i>extern</i> <i>prio_Level_t</i> prio_Highest_g;<font color="#6920ac">/*************************** * PROCEDURES PROTOTYPES * ***************************/</font><font color="#6920ac">/* set priority control block */</font><font size="+1"><i>crtx_Void_t</i> <a href="prio_SetInfo.FIND-FUNC">prio_SetInfo</a>(<i>prio_Info_t</i> *pInfo_a, <i>prio_Level_t</i> Level_a);</font><font color="#6920ac">/* ===== END OF THE DEFINITION FILE ===== */</font><b><font color='DarkGreen'>#ifdef</font></b><font color="maroon"> __cplusplus</font>}<b><font color='DarkGreen'>#endif</font></b><font color="maroon"> <font color="#6920ac">/* __cplusplus */</font></font><b><font color='DarkGreen'>#endif</font></b><font color="maroon"> <font color="#6920ac">/* __PRI_DEFS__H */</font></font></pre></BODY></HTML>⌨️ 快捷键说明
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