smt_exmp.c
来自「澳洲人写的Cortex,包括uC_IP协议栈」· C语言 代码 · 共 108 行
C
108 行
<HTML><HEAD><TITLE>/home/asysweb/public_html/cortex/examples/exmpl4/src/smt_exmp.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="smt_exmp.h.FIND-INC"><font color="blue">"smt_exmp.h"</font></a><font size="+1"><i>crtx_Void_t</i> <b><font color="azure1"><a name="crtx_Main">crtx_Main</a></font></b>( <i>crtx_Int_t</i> ArgC_a, <i>crtx_Void_t</i> *pArgV_a, <i>crtx_Void_t</i> *pEnvV_a){</font><font color="#6920ac">/********************* * LOCAL VARIABLES * *********************/</font> <i>crtx_Int_t</i> ArgC; <i>crtx_Void_t</i> *pArgV; <i>crtx_Void_t</i> *pEnvV; <i>semt_Semaphore_t</i> *pSemaphore; <i>tick_Timeout_t</i> Timeout;<font color="#6920ac">/********************* * PROCEDURE LOGIC * *********************/</font> <a href="pltf_Init.FIND-FUNC">pltf_Init</a>(ArgC_a, pArgV_a, pEnvV_a); ArgC = ArgC_a; <font color="#6920ac">/* to avoid compiler's warning */</font> pArgV = pArgV_a; <font color="#6920ac">/* ... */</font> pEnvV = pEnvV_a; <font color="#6920ac">/* ... */</font> <font color="#6920ac">/* startup message */</font> <a href="printf.FIND-FUNC">printf</a>(<font color="DarkGreen">"\n%s (Version: %s)\n\n"</font>, <a href="syst_Copyright.FIND-FUNC">syst_Copyright</a>(), <a href="syst_VersionStr.FIND-FUNC">syst_VersionStr</a>()); <a href="printf.FIND-FUNC">printf</a>(<font color="DarkGreen">"%s[%d]:EXAMPLE:Semaphore Example Started (%d ticks/sec) ...\n"</font>, <a href="task_GetName.FIND-FUNC">task_GetName</a>(<a href="task_Self.FIND-FUNC">task_Self</a>()), <a href="task_Self.FIND-FUNC">task_Self</a>(), <a href="TICK_SYSTEM_TICKS_PER_SEC.FIND-DEF">TICK_SYSTEM_TICKS_PER_SEC</a>); <font color="#6920ac">/* Create semaphore */</font> pSemaphore = <a href="semt_Create.FIND-FUNC">semt_Create</a>(1, 1); <b>if</b> ((<i>crtx_Void_t</i>*)pSemaphore == <a href="CRTX_NULL.FIND-DEF">CRTX_NULL</a>) { <a href="printf.FIND-FUNC">printf</a>(<font color="DarkGreen">"%s[%d]:ERROR: Couldn't create semaphore\n"</font>, <a href="task_GetName.FIND-FUNC">task_GetName</a>(<a href="task_Self.FIND-FUNC">task_Self</a>()), <a href="task_Self.FIND-FUNC">task_Self</a>()); <a href="CRTX_EXCEPTION.FIND-DEF">CRTX_EXCEPTION</a> Error_Exc; } <b>if</b> (!<a href="semt_Wait.FIND-FUNC">semt_Wait</a>(pSemaphore, <a href="CRTX_NULL.FIND-DEF">CRTX_NULL</a>)) { <a href="printf.FIND-FUNC">printf</a>(<font color="DarkGreen">"%s[%d]:ERROR: Couldn't take semaphore\n"</font>, <a href="task_GetName.FIND-FUNC">task_GetName</a>(<a href="task_Self.FIND-FUNC">task_Self</a>()), <a href="task_Self.FIND-FUNC">task_Self</a>()); <a href="CRTX_EXCEPTION.FIND-DEF">CRTX_EXCEPTION</a> Error_Exc; } Timeout = <a href="TICK_MS_TO_TICKS.FIND-DEF">TICK_MS_TO_TICKS</a>(1000); <font color="#6920ac">/* 1 sec timeout */</font> <b>if</b> (<a href="semt_Wait.FIND-FUNC">semt_Wait</a>(pSemaphore, &Timeout)) { <a href="printf.FIND-FUNC">printf</a>(<font color="DarkGreen">"%s[%d]:ERROR: Could take semaphore\n"</font>, <a href="task_GetName.FIND-FUNC">task_GetName</a>(<a href="task_Self.FIND-FUNC">task_Self</a>()), <a href="task_Self.FIND-FUNC">task_Self</a>()); <a href="CRTX_EXCEPTION.FIND-DEF">CRTX_EXCEPTION</a> Error_Exc; } <b>if</b> (<a href="semt_Try.FIND-FUNC">semt_Try</a>(pSemaphore)) { <a href="printf.FIND-FUNC">printf</a>(<font color="DarkGreen">"%s[%d]:ERROR: Could take semaphore\n"</font>, <a href="task_GetName.FIND-FUNC">task_GetName</a>(<a href="task_Self.FIND-FUNC">task_Self</a>()), <a href="task_Self.FIND-FUNC">task_Self</a>()); <a href="CRTX_EXCEPTION.FIND-DEF">CRTX_EXCEPTION</a> Error_Exc; } <font color="#6920ac">/* Delete semaphore */</font> <a href="semt_Delete.FIND-FUNC">semt_Delete</a>(pSemaphore); <a href="printf.FIND-FUNC">printf</a>(<font color="DarkGreen">"%s[%d]:EXAMPLE:Semaphore Example Completed ...\n"</font>, <a href="task_GetName.FIND-FUNC">task_GetName</a>(<a href="task_Self.FIND-FUNC">task_Self</a>()), <a href="task_Self.FIND-FUNC">task_Self</a>()); <a href="task_Sleep.FIND-FUNC">task_Sleep</a>(<a href="TICK_MS_TO_TICKS.FIND-DEF">TICK_MS_TO_TICKS</a>(1000)); <b>return</b>;<font color="#6920ac">/************************ * EXCEPTION HANDLING * ************************/</font><font color="blue">Error_Exc:</font> <a href="printf.FIND-FUNC">printf</a>(<font color="DarkGreen">"%s[%d]:EXAMPLE:Semaphore Example Failed ...\n"</font>, <a href="task_GetName.FIND-FUNC">task_GetName</a>(<a href="task_Self.FIND-FUNC">task_Self</a>()), <a href="task_Self.FIND-FUNC">task_Self</a>()); <b>return</b>;}</pre></BODY></HTML>⌨️ 快捷键说明
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